Merge branch 'master' of github.com:open-keychain/open-keychain
This commit is contained in:
@@ -242,7 +242,7 @@ android {
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// apply plugin: 'spoon'
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task jacocoTestReport(type:JacocoReport) {
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task jacocoTestReport(type:JacocoReport, dependsOn: "testDebugUnitTest") {
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group = "Reporting"
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description = "Generate Jacoco coverage reports"
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@@ -252,7 +252,9 @@ task jacocoTestReport(type:JacocoReport) {
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'**/R$*.class',
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'**/*$ViewInjector*.*',
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'**/BuildConfig.*',
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'**/Manifest*.*']
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'**/Manifest*.*',
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'**/*Activity*.*',
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'**/*Fragment*.*']
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)
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sourceDirectories = files("${buildDir.parent}/src/main/java")
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@@ -260,10 +262,7 @@ task jacocoTestReport(type:JacocoReport) {
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"${buildDir}/generated/source/buildConfig/debug",
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"${buildDir}/generated/source/r/debug"
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])
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executionData = files([
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"${buildDir}/jacoco/testDebug.exec",
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"${buildDir}/outputs/code-coverage/connected/coverage.ec"
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])
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executionData = fileTree(dir: "${buildDir}/jacoco", include: "**/*.exec")
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reports {
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xml.enabled = true
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@@ -151,7 +151,6 @@ public class KeybaseVerificationOperation extends BaseOperation<KeybaseVerificat
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PgpDecryptVerifyOperation op = new PgpDecryptVerifyOperation(mContext, mProviderHelper, mProgressable);
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PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel(messageBytes)
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.setSignedLiteralData(true)
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.setRequiredSignerFingerprint(requiredFingerprint);
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DecryptVerifyResult decryptVerifyResult = op.execute(input, new CryptoInputParcel());
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@@ -661,6 +661,7 @@ public abstract class OperationResult implements Parcelable {
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MSG_DC_ERROR_INPUT (LogLevel.ERROR, R.string.msg_dc_error_input),
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MSG_DC_ERROR_NO_DATA (LogLevel.ERROR, R.string.msg_dc_error_no_data),
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MSG_DC_ERROR_NO_KEY (LogLevel.ERROR, R.string.msg_dc_error_no_key),
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MSG_DC_ERROR_NO_SIGNATURE (LogLevel.ERROR, R.string.msg_dc_error_no_signature),
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MSG_DC_ERROR_PGP_EXCEPTION (LogLevel.ERROR, R.string.msg_dc_error_pgp_exception),
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MSG_DC_INTEGRITY_CHECK_OK (LogLevel.INFO, R.string.msg_dc_integrity_check_ok),
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MSG_DC_OK_META_ONLY (LogLevel.OK, R.string.msg_dc_ok_meta_only),
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@@ -687,6 +688,7 @@ public abstract class OperationResult implements Parcelable {
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MSG_VL_ERROR_MISSING_SIGLIST (LogLevel.ERROR, R.string.msg_vl_error_no_siglist),
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MSG_VL_ERROR_MISSING_LITERAL (LogLevel.ERROR, R.string.msg_vl_error_missing_literal),
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MSG_VL_ERROR_MISSING_KEY (LogLevel.ERROR, R.string.msg_vl_error_wrong_key),
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MSG_VL_ERROR_NO_SIGNATURE (LogLevel.ERROR, R.string.msg_vl_error_no_signature),
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MSG_VL_CLEAR_SIGNATURE_CHECK (LogLevel.DEBUG, R.string.msg_vl_clear_signature_check),
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MSG_VL_ERROR_INTEGRITY_CHECK (LogLevel.ERROR, R.string.msg_vl_error_integrity_check),
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MSG_VL_OK (LogLevel.OK, R.string.msg_vl_ok),
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@@ -703,7 +705,6 @@ public abstract class OperationResult implements Parcelable {
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// pgpsignencrypt
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MSG_PSE_ASYMMETRIC (LogLevel.INFO, R.string.msg_pse_asymmetric),
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MSG_PSE_CLEARSIGN_ONLY (LogLevel.DEBUG, R.string.msg_pse_clearsign_only),
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MSG_PSE_COMPRESSING (LogLevel.DEBUG, R.string.msg_pse_compressing),
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MSG_PSE_ENCRYPTING (LogLevel.DEBUG, R.string.msg_pse_encrypting),
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MSG_PSE_ERROR_BAD_PASSPHRASE (LogLevel.ERROR, R.string.msg_pse_error_bad_passphrase),
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@@ -44,13 +44,17 @@ import java.util.Iterator;
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public class CanonicalizedPublicKey extends UncachedPublicKey {
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// this is the parent key ring
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final KeyRing mRing;
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final CanonicalizedKeyRing mRing;
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CanonicalizedPublicKey(KeyRing ring, PGPPublicKey key) {
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CanonicalizedPublicKey(CanonicalizedKeyRing ring, PGPPublicKey key) {
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super(key);
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mRing = ring;
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}
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public CanonicalizedKeyRing getKeyRing() {
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return mRing;
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}
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public IterableIterator<String> getUserIds() {
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return new IterableIterator<String>(mPublicKey.getUserIDs());
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}
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@@ -91,11 +91,12 @@ public class OpenPgpSignatureResultBuilder {
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return mInsecure;
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}
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public void initValid(CanonicalizedPublicKeyRing signingRing,
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CanonicalizedPublicKey signingKey) {
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public void initValid(CanonicalizedPublicKey signingKey) {
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setSignatureAvailable(true);
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setKnownKey(true);
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CanonicalizedKeyRing signingRing = signingKey.getKeyRing();
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// from RING
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setKeyId(signingRing.getMasterKeyId());
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try {
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@@ -18,7 +18,7 @@
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package org.sufficientlysecure.keychain.pgp;
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import java.io.InputStream;
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import java.util.HashSet;
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import android.net.Uri;
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@@ -36,7 +36,6 @@ public class PgpDecryptVerifyInputParcel implements Parcelable {
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private boolean mDecryptMetadataOnly;
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private byte[] mDetachedSignature;
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private String mRequiredSignerFingerprint;
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private boolean mSignedLiteralData;
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public PgpDecryptVerifyInputParcel() {
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}
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@@ -61,7 +60,6 @@ public class PgpDecryptVerifyInputParcel implements Parcelable {
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mDecryptMetadataOnly = source.readInt() != 0;
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mDetachedSignature = source.createByteArray();
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mRequiredSignerFingerprint = source.readString();
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mSignedLiteralData = source.readInt() != 0;
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}
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@Override
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@@ -80,7 +78,6 @@ public class PgpDecryptVerifyInputParcel implements Parcelable {
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dest.writeInt(mDecryptMetadataOnly ? 1 : 0);
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dest.writeByteArray(mDetachedSignature);
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dest.writeString(mRequiredSignerFingerprint);
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dest.writeInt(mSignedLiteralData ? 1 : 0);
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}
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byte[] getInputBytes() {
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@@ -150,15 +147,6 @@ public class PgpDecryptVerifyInputParcel implements Parcelable {
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return this;
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}
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boolean isSignedLiteralData() {
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return mSignedLiteralData;
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}
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public PgpDecryptVerifyInputParcel setSignedLiteralData(boolean signedLiteralData) {
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mSignedLiteralData = signedLiteralData;
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return this;
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}
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public static final Creator<PgpDecryptVerifyInputParcel> CREATOR = new Creator<PgpDecryptVerifyInputParcel>() {
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public PgpDecryptVerifyInputParcel createFromParcel(final Parcel source) {
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return new PgpDecryptVerifyInputParcel(source);
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@@ -18,13 +18,23 @@
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package org.sufficientlysecure.keychain.pgp;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.security.SignatureException;
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import java.util.Date;
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import java.util.Iterator;
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import android.content.Context;
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import android.support.annotation.NonNull;
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import android.webkit.MimeTypeMap;
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import org.openintents.openpgp.OpenPgpDecryptionResult;
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import org.openintents.openpgp.OpenPgpMetadata;
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import org.openintents.openpgp.OpenPgpSignatureResult;
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import org.spongycastle.bcpg.ArmoredInputStream;
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import org.spongycastle.openpgp.PGPCompressedData;
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import org.spongycastle.openpgp.PGPDataValidationException;
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@@ -33,18 +43,14 @@ import org.spongycastle.openpgp.PGPEncryptedDataList;
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import org.spongycastle.openpgp.PGPException;
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import org.spongycastle.openpgp.PGPKeyValidationException;
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import org.spongycastle.openpgp.PGPLiteralData;
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import org.spongycastle.openpgp.PGPOnePassSignature;
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import org.spongycastle.openpgp.PGPOnePassSignatureList;
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import org.spongycastle.openpgp.PGPPBEEncryptedData;
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import org.spongycastle.openpgp.PGPPublicKeyEncryptedData;
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import org.spongycastle.openpgp.PGPSignature;
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import org.spongycastle.openpgp.PGPSignatureList;
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import org.spongycastle.openpgp.PGPUtil;
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import org.spongycastle.openpgp.jcajce.JcaPGPObjectFactory;
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import org.spongycastle.openpgp.operator.PBEDataDecryptorFactory;
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import org.spongycastle.openpgp.operator.PGPDigestCalculatorProvider;
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import org.spongycastle.openpgp.operator.jcajce.CachingDataDecryptorFactory;
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import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
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import org.spongycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
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import org.spongycastle.openpgp.operator.jcajce.JcePBEDataDecryptorFactoryBuilder;
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import org.spongycastle.util.encoders.DecoderException;
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@@ -68,17 +74,6 @@ import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.Passphrase;
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import org.sufficientlysecure.keychain.util.ProgressScaler;
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import java.io.BufferedInputStream;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.security.SignatureException;
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import java.util.Date;
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import java.util.Iterator;
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public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInputParcel> {
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public PgpDecryptVerifyOperation(Context context, ProviderHelper providerHelper, Progressable progressable) {
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@@ -153,9 +148,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
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// it is ascii armored
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Log.d(Constants.TAG, "ASCII Armor Header Line: " + aIn.getArmorHeaderLine());
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if (input.isSignedLiteralData()) {
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return verifySignedLiteralData(input, aIn, outputStream, 0);
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} else if (aIn.isClearText()) {
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if (aIn.isClearText()) {
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// a cleartext signature, verify it with the other method
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return verifyCleartextSignature(aIn, outputStream, 0);
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} else {
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@@ -186,133 +179,6 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
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}
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}
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/**Verify signed plaintext data (PGP/INLINE). */
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@NonNull
|
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private DecryptVerifyResult verifySignedLiteralData(
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||||
PgpDecryptVerifyInputParcel input, InputStream in, OutputStream out, int indent)
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throws IOException, PGPException {
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OperationLog log = new OperationLog();
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log.add(LogType.MSG_VL, indent);
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// thinking that the proof-fetching operation is going to take most of the time
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updateProgress(R.string.progress_reading_data, 75, 100);
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JcaPGPObjectFactory pgpF = new JcaPGPObjectFactory(in);
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Object o = pgpF.nextObject();
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if (o instanceof PGPCompressedData) {
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log.add(LogType.MSG_DC_CLEAR_DECOMPRESS, indent + 1);
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pgpF = new JcaPGPObjectFactory(((PGPCompressedData) o).getDataStream());
|
||||
o = pgpF.nextObject();
|
||||
updateProgress(R.string.progress_decompressing_data, 80, 100);
|
||||
}
|
||||
|
||||
// all we want to see is a OnePassSignatureList followed by LiteralData
|
||||
if (!(o instanceof PGPOnePassSignatureList)) {
|
||||
log.add(LogType.MSG_VL_ERROR_MISSING_SIGLIST, indent);
|
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return new DecryptVerifyResult(DecryptVerifyResult.RESULT_ERROR, log);
|
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}
|
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PGPOnePassSignatureList sigList = (PGPOnePassSignatureList) o;
|
||||
|
||||
// go through all signatures (should be just one), make sure we have
|
||||
// the key and it matches the one we’re looking for
|
||||
CanonicalizedPublicKeyRing signingRing = null;
|
||||
CanonicalizedPublicKey signingKey = null;
|
||||
int signatureIndex = -1;
|
||||
for (int i = 0; i < sigList.size(); ++i) {
|
||||
try {
|
||||
long sigKeyId = sigList.get(i).getKeyID();
|
||||
signingRing = mProviderHelper.getCanonicalizedPublicKeyRing(
|
||||
KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(sigKeyId)
|
||||
);
|
||||
signingKey = signingRing.getPublicKey(sigKeyId);
|
||||
signatureIndex = i;
|
||||
} catch (ProviderHelper.NotFoundException e) {
|
||||
Log.d(Constants.TAG, "key not found, trying next signature...");
|
||||
}
|
||||
}
|
||||
|
||||
// there has to be a key, and it has to be the right one
|
||||
if (signingKey == null) {
|
||||
log.add(LogType.MSG_VL_ERROR_MISSING_KEY, indent);
|
||||
Log.d(Constants.TAG, "Failed to find key in signed-literal message");
|
||||
return new DecryptVerifyResult(DecryptVerifyResult.RESULT_ERROR, log);
|
||||
}
|
||||
|
||||
String fingerprint = KeyFormattingUtils.convertFingerprintToHex(signingRing.getFingerprint());
|
||||
if (!(input.getRequiredSignerFingerprint().equals(fingerprint))) {
|
||||
log.add(LogType.MSG_VL_ERROR_MISSING_KEY, indent);
|
||||
Log.d(Constants.TAG, "Fingerprint mismatch; wanted " + input.getRequiredSignerFingerprint() +
|
||||
" got " + fingerprint + "!");
|
||||
return new DecryptVerifyResult(DecryptVerifyResult.RESULT_ERROR, log);
|
||||
}
|
||||
|
||||
OpenPgpSignatureResultBuilder signatureResultBuilder = new OpenPgpSignatureResultBuilder();
|
||||
|
||||
PGPOnePassSignature signature = sigList.get(signatureIndex);
|
||||
signatureResultBuilder.initValid(signingRing, signingKey);
|
||||
|
||||
JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider =
|
||||
new JcaPGPContentVerifierBuilderProvider()
|
||||
.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
|
||||
signature.init(contentVerifierBuilderProvider, signingKey.getPublicKey());
|
||||
|
||||
o = pgpF.nextObject();
|
||||
|
||||
if (!(o instanceof PGPLiteralData)) {
|
||||
log.add(LogType.MSG_VL_ERROR_MISSING_LITERAL, indent);
|
||||
return new DecryptVerifyResult(DecryptVerifyResult.RESULT_ERROR, log);
|
||||
}
|
||||
|
||||
PGPLiteralData literalData = (PGPLiteralData) o;
|
||||
|
||||
log.add(LogType.MSG_DC_CLEAR_DATA, indent + 1);
|
||||
updateProgress(R.string.progress_decrypting, 85, 100);
|
||||
|
||||
InputStream dataIn = literalData.getInputStream();
|
||||
|
||||
int length;
|
||||
byte[] buffer = new byte[1 << 16];
|
||||
while ((length = dataIn.read(buffer)) > 0) {
|
||||
out.write(buffer, 0, length);
|
||||
signature.update(buffer, 0, length);
|
||||
}
|
||||
|
||||
updateProgress(R.string.progress_verifying_signature, 95, 100);
|
||||
log.add(LogType.MSG_VL_CLEAR_SIGNATURE_CHECK, indent + 1);
|
||||
|
||||
PGPSignatureList signatureList = (PGPSignatureList) pgpF.nextObject();
|
||||
PGPSignature messageSignature = signatureList.get(signatureIndex);
|
||||
|
||||
// Verify signature and check binding signatures
|
||||
boolean validSignature = signature.verify(messageSignature);
|
||||
if (validSignature) {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_OK, indent + 1);
|
||||
} else {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_BAD, indent + 1);
|
||||
}
|
||||
signatureResultBuilder.setValidSignature(validSignature);
|
||||
|
||||
OpenPgpSignatureResult signatureResult = signatureResultBuilder.build();
|
||||
|
||||
if (signatureResult.getResult() != OpenPgpSignatureResult.RESULT_VALID_CONFIRMED
|
||||
&& signatureResult.getResult() != OpenPgpSignatureResult.RESULT_VALID_UNCONFIRMED) {
|
||||
log.add(LogType.MSG_VL_ERROR_INTEGRITY_CHECK, indent);
|
||||
return new DecryptVerifyResult(DecryptVerifyResult.RESULT_ERROR, log);
|
||||
}
|
||||
|
||||
updateProgress(R.string.progress_done, 100, 100);
|
||||
|
||||
log.add(LogType.MSG_VL_OK, indent);
|
||||
|
||||
// Return a positive result, with metadata and verification info
|
||||
DecryptVerifyResult result = new DecryptVerifyResult(DecryptVerifyResult.RESULT_OK, log);
|
||||
result.setSignatureResult(signatureResult);
|
||||
result.setDecryptionResult(
|
||||
new OpenPgpDecryptionResult(OpenPgpDecryptionResult.RESULT_NOT_ENCRYPTED));
|
||||
return result;
|
||||
}
|
||||
|
||||
private static class EncryptStreamResult {
|
||||
|
||||
// this is non-null iff an error occured, return directly
|
||||
@@ -368,7 +234,6 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
}
|
||||
}
|
||||
|
||||
OpenPgpSignatureResultBuilder signatureResultBuilder = new OpenPgpSignatureResultBuilder();
|
||||
OpenPgpDecryptionResultBuilder decryptionResultBuilder = new OpenPgpDecryptionResultBuilder();
|
||||
|
||||
JcaPGPObjectFactory plainFact;
|
||||
@@ -415,10 +280,6 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
|
||||
log.add(LogType.MSG_DC_PREP_STREAMS, indent);
|
||||
|
||||
int signatureIndex = -1;
|
||||
CanonicalizedPublicKeyRing signingRing = null;
|
||||
CanonicalizedPublicKey signingKey = null;
|
||||
|
||||
log.add(LogType.MSG_DC_CLEAR, indent);
|
||||
indent += 1;
|
||||
|
||||
@@ -435,58 +296,8 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
plainFact = fact;
|
||||
}
|
||||
|
||||
// resolve leading signature data
|
||||
PGPOnePassSignature signature = null;
|
||||
if (dataChunk instanceof PGPOnePassSignatureList) {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE, indent + 1);
|
||||
currentProgress += 2;
|
||||
updateProgress(R.string.progress_processing_signature, currentProgress, 100);
|
||||
|
||||
PGPOnePassSignatureList sigList = (PGPOnePassSignatureList) dataChunk;
|
||||
|
||||
// NOTE: following code is similar to processSignature, but for PGPOnePassSignature
|
||||
|
||||
// go through all signatures
|
||||
// and find out for which signature we have a key in our database
|
||||
for (int i = 0; i < sigList.size(); ++i) {
|
||||
try {
|
||||
long sigKeyId = sigList.get(i).getKeyID();
|
||||
signingRing = mProviderHelper.getCanonicalizedPublicKeyRing(
|
||||
KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(sigKeyId)
|
||||
);
|
||||
signingKey = signingRing.getPublicKey(sigKeyId);
|
||||
signatureIndex = i;
|
||||
} catch (ProviderHelper.NotFoundException e) {
|
||||
Log.d(Constants.TAG, "key not found, trying next signature...");
|
||||
}
|
||||
}
|
||||
|
||||
if (signingKey != null) {
|
||||
// key found in our database!
|
||||
signature = sigList.get(signatureIndex);
|
||||
|
||||
signatureResultBuilder.initValid(signingRing, signingKey);
|
||||
|
||||
JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider =
|
||||
new JcaPGPContentVerifierBuilderProvider()
|
||||
.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
|
||||
signature.init(contentVerifierBuilderProvider, signingKey.getPublicKey());
|
||||
} else {
|
||||
// no key in our database -> return "unknown pub key" status including the first key id
|
||||
if (!sigList.isEmpty()) {
|
||||
signatureResultBuilder.setSignatureAvailable(true);
|
||||
signatureResultBuilder.setKnownKey(false);
|
||||
signatureResultBuilder.setKeyId(sigList.get(0).getKeyID());
|
||||
}
|
||||
}
|
||||
|
||||
// check for insecure signing key
|
||||
// TODO: checks on signingRing ?
|
||||
if (signingKey != null && ! PgpSecurityConstants.isSecureKey(signingKey)) {
|
||||
log.add(LogType.MSG_DC_INSECURE_KEY, indent + 1);
|
||||
signatureResultBuilder.setInsecure(true);
|
||||
}
|
||||
|
||||
PgpSignatureChecker signatureChecker = new PgpSignatureChecker(mProviderHelper);
|
||||
if (signatureChecker.initializeOnePassSignature(dataChunk, log, indent +1)) {
|
||||
dataChunk = plainFact.nextObject();
|
||||
}
|
||||
|
||||
@@ -567,16 +378,8 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
return result;
|
||||
}
|
||||
|
||||
int endProgress;
|
||||
if (signature != null) {
|
||||
endProgress = 90;
|
||||
} else if (esResult != null && esResult.encryptedData.isIntegrityProtected()) {
|
||||
endProgress = 95;
|
||||
} else {
|
||||
endProgress = 100;
|
||||
}
|
||||
ProgressScaler progressScaler =
|
||||
new ProgressScaler(mProgressable, currentProgress, endProgress, 100);
|
||||
new ProgressScaler(mProgressable, currentProgress, 95, 100);
|
||||
|
||||
InputStream dataIn = literalData.getInputStream();
|
||||
|
||||
@@ -591,11 +394,10 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
}
|
||||
|
||||
// update signature buffer if signature is also present
|
||||
if (signature != null) {
|
||||
signature.update(buffer, 0, length);
|
||||
}
|
||||
signatureChecker.updateSignatureData(buffer, 0, length);
|
||||
|
||||
alreadyWritten += length;
|
||||
// noinspection ConstantConditions, TODO progress
|
||||
if (wholeSize > 0) {
|
||||
long progress = 100 * alreadyWritten / wholeSize;
|
||||
// stop at 100% for wrong file sizes...
|
||||
@@ -604,34 +406,20 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
}
|
||||
progressScaler.setProgress((int) progress, 100);
|
||||
}
|
||||
// TODO: slow annealing to fake a progress?
|
||||
}
|
||||
|
||||
metadata = new OpenPgpMetadata(
|
||||
originalFilename, mimeType, literalData.getModificationTime().getTime(), alreadyWritten, charset);
|
||||
|
||||
if (signature != null) {
|
||||
updateProgress(R.string.progress_verifying_signature, 90, 100);
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_CHECK, indent);
|
||||
if (signatureChecker.isInitialized()) {
|
||||
|
||||
PGPSignatureList signatureList = (PGPSignatureList) plainFact.nextObject();
|
||||
PGPSignature messageSignature = signatureList.get(signatureIndex);
|
||||
Object o = plainFact.nextObject();
|
||||
boolean signatureCheckOk = signatureChecker.verifySignatureOnePass(o, log, indent + 1);
|
||||
|
||||
// Verify signature
|
||||
boolean validSignature = signature.verify(messageSignature);
|
||||
if (validSignature) {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_OK, indent + 1);
|
||||
} else {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_BAD, indent + 1);
|
||||
if (!signatureCheckOk) {
|
||||
return new DecryptVerifyResult(DecryptVerifyResult.RESULT_ERROR, log);
|
||||
}
|
||||
|
||||
// check for insecure hash algorithms
|
||||
if (!PgpSecurityConstants.isSecureHashAlgorithm(signature.getHashAlgorithm())) {
|
||||
log.add(LogType.MSG_DC_INSECURE_HASH_ALGO, indent + 1);
|
||||
signatureResultBuilder.setInsecure(true);
|
||||
}
|
||||
|
||||
signatureResultBuilder.setValidSignature(validSignature);
|
||||
}
|
||||
|
||||
indent -= 1;
|
||||
@@ -646,7 +434,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
log.add(LogType.MSG_DC_ERROR_INTEGRITY_CHECK, indent);
|
||||
return new DecryptVerifyResult(DecryptVerifyResult.RESULT_ERROR, log);
|
||||
}
|
||||
} else if (signature == null) {
|
||||
} else if ( ! signatureChecker.isInitialized() ) {
|
||||
// If no signature is present, we *require* an MDC!
|
||||
// Handle missing integrity protection like failed integrity protection!
|
||||
// The MDC packet can be stripped by an attacker!
|
||||
@@ -663,7 +451,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
DecryptVerifyResult result = new DecryptVerifyResult(DecryptVerifyResult.RESULT_OK, log);
|
||||
|
||||
result.setCachedCryptoInputParcel(cryptoInput);
|
||||
result.setSignatureResult(signatureResultBuilder.build());
|
||||
result.setSignatureResult(signatureChecker.getSignatureResult());
|
||||
result.setDecryptionResult(decryptionResultBuilder.build());
|
||||
result.setDecryptionMetadata(metadata);
|
||||
|
||||
@@ -674,13 +462,6 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
private EncryptStreamResult handleEncryptedPacket(PgpDecryptVerifyInputParcel input, CryptoInputParcel cryptoInput,
|
||||
PGPEncryptedDataList enc, OperationLog log, int indent, int currentProgress) throws PGPException {
|
||||
|
||||
// TODO is this necessary?
|
||||
/*
|
||||
else if (obj instanceof PGPEncryptedDataList) {
|
||||
enc = (PGPEncryptedDataList) pgpF.nextObject();
|
||||
}
|
||||
*/
|
||||
|
||||
EncryptStreamResult result = new EncryptStreamResult();
|
||||
|
||||
boolean asymmetricPacketFound = false;
|
||||
@@ -721,11 +502,6 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
log.add(LogType.MSG_DC_ASKIP_NO_KEY, indent + 1);
|
||||
continue;
|
||||
}
|
||||
if (secretKeyRing == null) {
|
||||
// continue with the next packet in the while loop
|
||||
log.add(LogType.MSG_DC_ASKIP_NO_KEY, indent + 1);
|
||||
continue;
|
||||
}
|
||||
|
||||
// allow only specific keys for decryption?
|
||||
if (input.getAllowedKeyIds() != null) {
|
||||
@@ -745,11 +521,6 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
|
||||
// get subkey which has been used for this encryption packet
|
||||
secretEncryptionKey = secretKeyRing.getSecretKey(subKeyId);
|
||||
if (secretEncryptionKey == null) {
|
||||
// should actually never happen, so no need to be more specific.
|
||||
log.add(LogType.MSG_DC_ASKIP_NO_KEY, indent + 1);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* secret key exists in database and is allowed! */
|
||||
asymmetricPacketFound = true;
|
||||
@@ -951,30 +722,31 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
|
||||
OperationLog log = new OperationLog();
|
||||
|
||||
OpenPgpSignatureResultBuilder signatureResultBuilder = new OpenPgpSignatureResultBuilder();
|
||||
byte[] clearText;
|
||||
{ // read cleartext
|
||||
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||
|
||||
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||
updateProgress(R.string.progress_reading_data, 0, 100);
|
||||
|
||||
updateProgress(R.string.progress_reading_data, 0, 100);
|
||||
ByteArrayOutputStream lineOut = new ByteArrayOutputStream();
|
||||
int lookAhead = readInputLine(lineOut, aIn);
|
||||
byte[] lineSep = getLineSeparator();
|
||||
|
||||
ByteArrayOutputStream lineOut = new ByteArrayOutputStream();
|
||||
int lookAhead = readInputLine(lineOut, aIn);
|
||||
byte[] lineSep = getLineSeparator();
|
||||
|
||||
byte[] line = lineOut.toByteArray();
|
||||
out.write(line, 0, getLengthWithoutSeparator(line));
|
||||
out.write(lineSep);
|
||||
|
||||
while (lookAhead != -1 && aIn.isClearText()) {
|
||||
lookAhead = readInputLine(lineOut, lookAhead, aIn);
|
||||
line = lineOut.toByteArray();
|
||||
byte[] line = lineOut.toByteArray();
|
||||
out.write(line, 0, getLengthWithoutSeparator(line));
|
||||
out.write(lineSep);
|
||||
|
||||
while (lookAhead != -1 && aIn.isClearText()) {
|
||||
lookAhead = readInputLine(lineOut, lookAhead, aIn);
|
||||
line = lineOut.toByteArray();
|
||||
out.write(line, 0, getLengthWithoutSeparator(line));
|
||||
out.write(lineSep);
|
||||
}
|
||||
|
||||
out.close();
|
||||
clearText = out.toByteArray();
|
||||
}
|
||||
|
||||
out.close();
|
||||
|
||||
byte[] clearText = out.toByteArray();
|
||||
if (outputStream != null) {
|
||||
outputStream.write(clearText);
|
||||
outputStream.close();
|
||||
@@ -983,51 +755,20 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
updateProgress(R.string.progress_processing_signature, 60, 100);
|
||||
JcaPGPObjectFactory pgpFact = new JcaPGPObjectFactory(aIn);
|
||||
|
||||
PGPSignatureList sigList = (PGPSignatureList) pgpFact.nextObject();
|
||||
if (sigList == null) {
|
||||
PgpSignatureChecker signatureChecker = new PgpSignatureChecker(mProviderHelper);
|
||||
|
||||
Object o = pgpFact.nextObject();
|
||||
if (!signatureChecker.initializeSignature(o, log, indent+1)) {
|
||||
log.add(LogType.MSG_DC_ERROR_INVALID_DATA, 0);
|
||||
return new DecryptVerifyResult(DecryptVerifyResult.RESULT_ERROR, log);
|
||||
}
|
||||
|
||||
PGPSignature signature = processPGPSignatureList(sigList, signatureResultBuilder, log, indent);
|
||||
|
||||
if (signature != null) {
|
||||
if (signatureChecker.isInitialized()) {
|
||||
try {
|
||||
updateProgress(R.string.progress_verifying_signature, 90, 100);
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_CHECK, indent);
|
||||
|
||||
InputStream sigIn = new BufferedInputStream(new ByteArrayInputStream(clearText));
|
||||
|
||||
lookAhead = readInputLine(lineOut, sigIn);
|
||||
|
||||
processLine(signature, lineOut.toByteArray());
|
||||
|
||||
if (lookAhead != -1) {
|
||||
do {
|
||||
lookAhead = readInputLine(lineOut, lookAhead, sigIn);
|
||||
|
||||
signature.update((byte) '\r');
|
||||
signature.update((byte) '\n');
|
||||
|
||||
processLine(signature, lineOut.toByteArray());
|
||||
} while (lookAhead != -1);
|
||||
}
|
||||
|
||||
// Verify signature and check binding signatures
|
||||
boolean validSignature = signature.verify();
|
||||
if (validSignature) {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_OK, indent + 1);
|
||||
} else {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_BAD, indent + 1);
|
||||
}
|
||||
|
||||
// check for insecure hash algorithms
|
||||
if (!PgpSecurityConstants.isSecureHashAlgorithm(signature.getHashAlgorithm())) {
|
||||
log.add(LogType.MSG_DC_INSECURE_HASH_ALGO, indent + 1);
|
||||
signatureResultBuilder.setInsecure(true);
|
||||
}
|
||||
|
||||
signatureResultBuilder.setValidSignature(validSignature);
|
||||
signatureChecker.updateSignatureWithCleartext(clearText);
|
||||
signatureChecker.verifySignature(log, indent);
|
||||
|
||||
} catch (SignatureException e) {
|
||||
Log.d(Constants.TAG, "SignatureException", e);
|
||||
@@ -1046,7 +787,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
clearText.length);
|
||||
|
||||
DecryptVerifyResult result = new DecryptVerifyResult(DecryptVerifyResult.RESULT_OK, log);
|
||||
result.setSignatureResult(signatureResultBuilder.build());
|
||||
result.setSignatureResult(signatureChecker.getSignatureResult());
|
||||
result.setDecryptionResult(
|
||||
new OpenPgpDecryptionResult(OpenPgpDecryptionResult.RESULT_NOT_ENCRYPTED));
|
||||
result.setDecryptionMetadata(metadata);
|
||||
@@ -1060,30 +801,28 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
|
||||
OperationLog log = new OperationLog();
|
||||
|
||||
OpenPgpSignatureResultBuilder signatureResultBuilder = new OpenPgpSignatureResultBuilder();
|
||||
|
||||
updateProgress(R.string.progress_processing_signature, 0, 100);
|
||||
InputStream detachedSigIn = new ByteArrayInputStream(input.getDetachedSignature());
|
||||
detachedSigIn = PGPUtil.getDecoderStream(detachedSigIn);
|
||||
|
||||
JcaPGPObjectFactory pgpFact = new JcaPGPObjectFactory(detachedSigIn);
|
||||
|
||||
PGPSignatureList sigList;
|
||||
Object o = pgpFact.nextObject();
|
||||
if (o instanceof PGPCompressedData) {
|
||||
PGPCompressedData c1 = (PGPCompressedData) o;
|
||||
pgpFact = new JcaPGPObjectFactory(c1.getDataStream());
|
||||
sigList = (PGPSignatureList) pgpFact.nextObject();
|
||||
} else if (o instanceof PGPSignatureList) {
|
||||
sigList = (PGPSignatureList) o;
|
||||
} else {
|
||||
o = pgpFact.nextObject();
|
||||
}
|
||||
|
||||
PgpSignatureChecker signatureChecker = new PgpSignatureChecker(mProviderHelper);
|
||||
|
||||
if ( ! signatureChecker.initializeSignature(o, log, indent+1)) {
|
||||
log.add(LogType.MSG_DC_ERROR_INVALID_DATA, 0);
|
||||
return new DecryptVerifyResult(DecryptVerifyResult.RESULT_ERROR, log);
|
||||
}
|
||||
|
||||
PGPSignature signature = processPGPSignatureList(sigList, signatureResultBuilder, log, indent);
|
||||
if (signatureChecker.isInitialized()) {
|
||||
|
||||
if (signature != null) {
|
||||
updateProgress(R.string.progress_reading_data, 60, 100);
|
||||
|
||||
ProgressScaler progressScaler = new ProgressScaler(mProgressable, 60, 90, 100);
|
||||
@@ -1098,7 +837,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
}
|
||||
|
||||
// update signature buffer if signature is also present
|
||||
signature.update(buffer, 0, length);
|
||||
signatureChecker.updateSignatureData(buffer, 0, length);
|
||||
|
||||
alreadyWritten += length;
|
||||
if (wholeSize > 0) {
|
||||
@@ -1109,105 +848,28 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
}
|
||||
progressScaler.setProgress((int) progress, 100);
|
||||
}
|
||||
// TODO: slow annealing to fake a progress?
|
||||
}
|
||||
|
||||
updateProgress(R.string.progress_verifying_signature, 90, 100);
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_CHECK, indent);
|
||||
|
||||
// Verify signature and check binding signatures
|
||||
boolean validSignature = signature.verify();
|
||||
if (validSignature) {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_OK, indent + 1);
|
||||
} else {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_BAD, indent + 1);
|
||||
}
|
||||
signatureChecker.verifySignature(log, indent);
|
||||
|
||||
// check for insecure hash algorithms
|
||||
if (!PgpSecurityConstants.isSecureHashAlgorithm(signature.getHashAlgorithm())) {
|
||||
log.add(LogType.MSG_DC_INSECURE_HASH_ALGO, indent + 1);
|
||||
signatureResultBuilder.setInsecure(true);
|
||||
}
|
||||
|
||||
signatureResultBuilder.setValidSignature(validSignature);
|
||||
}
|
||||
|
||||
updateProgress(R.string.progress_done, 100, 100);
|
||||
|
||||
log.add(LogType.MSG_DC_OK, indent);
|
||||
|
||||
// TODO return metadata object?
|
||||
|
||||
DecryptVerifyResult result = new DecryptVerifyResult(DecryptVerifyResult.RESULT_OK, log);
|
||||
result.setSignatureResult(signatureResultBuilder.build());
|
||||
result.setSignatureResult(signatureChecker.getSignatureResult());
|
||||
result.setDecryptionResult(
|
||||
new OpenPgpDecryptionResult(OpenPgpDecryptionResult.RESULT_NOT_ENCRYPTED));
|
||||
return result;
|
||||
}
|
||||
|
||||
private PGPSignature processPGPSignatureList(
|
||||
PGPSignatureList sigList, OpenPgpSignatureResultBuilder signatureResultBuilder,
|
||||
OperationLog log, int indent)
|
||||
throws PGPException {
|
||||
CanonicalizedPublicKeyRing signingRing = null;
|
||||
CanonicalizedPublicKey signingKey = null;
|
||||
int signatureIndex = -1;
|
||||
|
||||
// go through all signatures
|
||||
// and find out for which signature we have a key in our database
|
||||
for (int i = 0; i < sigList.size(); ++i) {
|
||||
try {
|
||||
long sigKeyId = sigList.get(i).getKeyID();
|
||||
signingRing = mProviderHelper.getCanonicalizedPublicKeyRing(
|
||||
KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(sigKeyId)
|
||||
);
|
||||
signingKey = signingRing.getPublicKey(sigKeyId);
|
||||
signatureIndex = i;
|
||||
} catch (ProviderHelper.NotFoundException e) {
|
||||
Log.d(Constants.TAG, "key not found, trying next signature...");
|
||||
}
|
||||
}
|
||||
|
||||
PGPSignature signature = null;
|
||||
|
||||
if (signingKey != null) {
|
||||
// key found in our database!
|
||||
signature = sigList.get(signatureIndex);
|
||||
|
||||
signatureResultBuilder.initValid(signingRing, signingKey);
|
||||
|
||||
JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider =
|
||||
new JcaPGPContentVerifierBuilderProvider()
|
||||
.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
|
||||
signature.init(contentVerifierBuilderProvider, signingKey.getPublicKey());
|
||||
} else {
|
||||
// no key in our database -> return "unknown pub key" status including the first key id
|
||||
if (!sigList.isEmpty()) {
|
||||
signatureResultBuilder.setSignatureAvailable(true);
|
||||
signatureResultBuilder.setKnownKey(false);
|
||||
signatureResultBuilder.setKeyId(sigList.get(0).getKeyID());
|
||||
}
|
||||
}
|
||||
|
||||
// check for insecure signing key
|
||||
// TODO: checks on signingRing ?
|
||||
if (signingKey != null && ! PgpSecurityConstants.isSecureKey(signingKey)) {
|
||||
log.add(LogType.MSG_DC_INSECURE_KEY, indent + 1);
|
||||
signatureResultBuilder.setInsecure(true);
|
||||
}
|
||||
|
||||
return signature;
|
||||
}
|
||||
|
||||
/**
|
||||
* Mostly taken from ClearSignedFileProcessor in Bouncy Castle
|
||||
*/
|
||||
private static void processLine(PGPSignature sig, byte[] line)
|
||||
throws SignatureException {
|
||||
int length = getLengthWithoutWhiteSpace(line);
|
||||
if (length > 0) {
|
||||
sig.update(line, 0, length);
|
||||
}
|
||||
}
|
||||
|
||||
private static int readInputLine(ByteArrayOutputStream bOut, InputStream fIn)
|
||||
throws IOException {
|
||||
bOut.reset();
|
||||
@@ -1273,22 +935,9 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
|
||||
return b == '\r' || b == '\n';
|
||||
}
|
||||
|
||||
private static int getLengthWithoutWhiteSpace(byte[] line) {
|
||||
int end = line.length - 1;
|
||||
|
||||
while (end >= 0 && isWhiteSpace(line[end])) {
|
||||
end--;
|
||||
}
|
||||
|
||||
return end + 1;
|
||||
}
|
||||
|
||||
private static boolean isWhiteSpace(byte b) {
|
||||
return b == '\r' || b == '\n' || b == '\t' || b == ' ';
|
||||
}
|
||||
|
||||
private static byte[] getLineSeparator() {
|
||||
String nl = System.getProperty("line.separator");
|
||||
return nl.getBytes();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@@ -491,9 +491,7 @@ public class PgpSignEncryptOperation extends BaseOperation {
|
||||
|
||||
literalGen.close();
|
||||
} else {
|
||||
pOut = null;
|
||||
// TODO: Is this log right?
|
||||
log.add(LogType.MSG_PSE_CLEARSIGN_ONLY, indent);
|
||||
throw new AssertionError("cannot clearsign in non-ascii armored text, this is a bug!");
|
||||
}
|
||||
|
||||
if (enableSignature) {
|
||||
|
||||
@@ -0,0 +1,344 @@
|
||||
package org.sufficientlysecure.keychain.pgp;
|
||||
|
||||
|
||||
import java.io.BufferedInputStream;
|
||||
import java.io.ByteArrayInputStream;
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.security.SignatureException;
|
||||
|
||||
import org.openintents.openpgp.OpenPgpSignatureResult;
|
||||
import org.spongycastle.openpgp.PGPException;
|
||||
import org.spongycastle.openpgp.PGPOnePassSignature;
|
||||
import org.spongycastle.openpgp.PGPOnePassSignatureList;
|
||||
import org.spongycastle.openpgp.PGPSignature;
|
||||
import org.spongycastle.openpgp.PGPSignatureList;
|
||||
import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
|
||||
import org.sufficientlysecure.keychain.Constants;
|
||||
import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
|
||||
import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
|
||||
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
|
||||
import org.sufficientlysecure.keychain.provider.ProviderHelper;
|
||||
import org.sufficientlysecure.keychain.util.Log;
|
||||
|
||||
|
||||
/** This class is used to track the state of a single signature verification.
|
||||
*
|
||||
*
|
||||
*/
|
||||
class PgpSignatureChecker {
|
||||
|
||||
OpenPgpSignatureResultBuilder signatureResultBuilder = new OpenPgpSignatureResultBuilder();
|
||||
|
||||
private CanonicalizedPublicKey signingKey;
|
||||
|
||||
private int signatureIndex;
|
||||
PGPOnePassSignature onePassSignature;
|
||||
PGPSignature signature;
|
||||
|
||||
ProviderHelper mProviderHelper;
|
||||
|
||||
PgpSignatureChecker(ProviderHelper providerHelper) {
|
||||
mProviderHelper = providerHelper;
|
||||
}
|
||||
|
||||
boolean initializeSignature(Object dataChunk, OperationLog log, int indent) throws PGPException {
|
||||
|
||||
if (!(dataChunk instanceof PGPSignatureList)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
PGPSignatureList sigList = (PGPSignatureList) dataChunk;
|
||||
findAvailableSignature(sigList);
|
||||
|
||||
if (signingKey != null) {
|
||||
|
||||
// key found in our database!
|
||||
signatureResultBuilder.initValid(signingKey);
|
||||
|
||||
JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider =
|
||||
new JcaPGPContentVerifierBuilderProvider()
|
||||
.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
|
||||
signature.init(contentVerifierBuilderProvider, signingKey.getPublicKey());
|
||||
checkKeySecurity(log, indent);
|
||||
|
||||
|
||||
} else if (!sigList.isEmpty()) {
|
||||
|
||||
signatureResultBuilder.setSignatureAvailable(true);
|
||||
signatureResultBuilder.setKnownKey(false);
|
||||
signatureResultBuilder.setKeyId(sigList.get(0).getKeyID());
|
||||
|
||||
}
|
||||
|
||||
return true;
|
||||
|
||||
}
|
||||
|
||||
boolean initializeOnePassSignature(Object dataChunk, OperationLog log, int indent) throws PGPException {
|
||||
|
||||
if (!(dataChunk instanceof PGPOnePassSignatureList)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE, indent + 1);
|
||||
|
||||
PGPOnePassSignatureList sigList = (PGPOnePassSignatureList) dataChunk;
|
||||
findAvailableSignature(sigList);
|
||||
|
||||
if (signingKey != null) {
|
||||
|
||||
// key found in our database!
|
||||
signatureResultBuilder.initValid(signingKey);
|
||||
|
||||
JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider =
|
||||
new JcaPGPContentVerifierBuilderProvider()
|
||||
.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
|
||||
onePassSignature.init(contentVerifierBuilderProvider, signingKey.getPublicKey());
|
||||
|
||||
checkKeySecurity(log, indent);
|
||||
|
||||
} else if (!sigList.isEmpty()) {
|
||||
|
||||
signatureResultBuilder.setSignatureAvailable(true);
|
||||
signatureResultBuilder.setKnownKey(false);
|
||||
signatureResultBuilder.setKeyId(sigList.get(0).getKeyID());
|
||||
|
||||
}
|
||||
|
||||
return true;
|
||||
|
||||
}
|
||||
|
||||
private void checkKeySecurity(OperationLog log, int indent) {
|
||||
// TODO: checks on signingRing ?
|
||||
if (!PgpSecurityConstants.isSecureKey(signingKey)) {
|
||||
log.add(LogType.MSG_DC_INSECURE_KEY, indent + 1);
|
||||
signatureResultBuilder.setInsecure(true);
|
||||
}
|
||||
}
|
||||
|
||||
public boolean isInitialized() {
|
||||
return signingKey != null;
|
||||
}
|
||||
|
||||
private void findAvailableSignature(PGPOnePassSignatureList sigList) {
|
||||
// go through all signatures (should be just one), make sure we have
|
||||
// the key and it matches the one we’re looking for
|
||||
for (int i = 0; i < sigList.size(); ++i) {
|
||||
try {
|
||||
long sigKeyId = sigList.get(i).getKeyID();
|
||||
CanonicalizedPublicKeyRing signingRing = mProviderHelper.getCanonicalizedPublicKeyRing(
|
||||
KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(sigKeyId)
|
||||
);
|
||||
CanonicalizedPublicKey keyCandidate = signingRing.getPublicKey(sigKeyId);
|
||||
if ( ! signingKey.canSign()) {
|
||||
continue;
|
||||
}
|
||||
signatureIndex = i;
|
||||
signingKey = keyCandidate;
|
||||
onePassSignature = sigList.get(i);
|
||||
return;
|
||||
} catch (ProviderHelper.NotFoundException e) {
|
||||
Log.d(Constants.TAG, "key not found, trying next signature...");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public void findAvailableSignature(PGPSignatureList sigList) {
|
||||
// go through all signatures (should be just one), make sure we have
|
||||
// the key and it matches the one we’re looking for
|
||||
for (int i = 0; i < sigList.size(); ++i) {
|
||||
try {
|
||||
long sigKeyId = sigList.get(i).getKeyID();
|
||||
CanonicalizedPublicKeyRing signingRing = mProviderHelper.getCanonicalizedPublicKeyRing(
|
||||
KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(sigKeyId)
|
||||
);
|
||||
CanonicalizedPublicKey keyCandidate = signingRing.getPublicKey(sigKeyId);
|
||||
if ( ! signingKey.canSign()) {
|
||||
continue;
|
||||
}
|
||||
signatureIndex = i;
|
||||
signingKey = keyCandidate;
|
||||
signature = sigList.get(i);
|
||||
return;
|
||||
} catch (ProviderHelper.NotFoundException e) {
|
||||
Log.d(Constants.TAG, "key not found, trying next signature...");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public void updateSignatureWithCleartext(byte[] clearText) throws IOException, SignatureException {
|
||||
|
||||
InputStream sigIn = new BufferedInputStream(new ByteArrayInputStream(clearText));
|
||||
|
||||
ByteArrayOutputStream outputBuffer = new ByteArrayOutputStream();
|
||||
|
||||
int lookAhead = readInputLine(outputBuffer, sigIn);
|
||||
|
||||
processLine(signature, outputBuffer.toByteArray());
|
||||
|
||||
while (lookAhead != -1) {
|
||||
lookAhead = readInputLine(outputBuffer, lookAhead, sigIn);
|
||||
|
||||
signature.update((byte) '\r');
|
||||
signature.update((byte) '\n');
|
||||
|
||||
processLine(signature, outputBuffer.toByteArray());
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
public void updateSignatureData(byte[] buf, int off, int len) {
|
||||
if (signature != null) {
|
||||
signature.update(buf, off, len);
|
||||
} else if (onePassSignature != null) {
|
||||
onePassSignature.update(buf, off, len);
|
||||
}
|
||||
}
|
||||
|
||||
void verifySignature(OperationLog log, int indent) throws PGPException {
|
||||
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_CHECK, indent);
|
||||
|
||||
// Verify signature
|
||||
boolean validSignature = signature.verify();
|
||||
if (validSignature) {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_OK, indent + 1);
|
||||
} else {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_BAD, indent + 1);
|
||||
}
|
||||
|
||||
// check for insecure hash algorithms
|
||||
if (!PgpSecurityConstants.isSecureHashAlgorithm(signature.getHashAlgorithm())) {
|
||||
log.add(LogType.MSG_DC_INSECURE_HASH_ALGO, indent + 1);
|
||||
signatureResultBuilder.setInsecure(true);
|
||||
}
|
||||
|
||||
signatureResultBuilder.setValidSignature(validSignature);
|
||||
|
||||
}
|
||||
|
||||
boolean verifySignatureOnePass(Object o, OperationLog log, int indent) throws PGPException {
|
||||
|
||||
if (!(o instanceof PGPSignatureList)) {
|
||||
log.add(LogType.MSG_DC_ERROR_NO_SIGNATURE, indent);
|
||||
return false;
|
||||
}
|
||||
PGPSignatureList signatureList = (PGPSignatureList) o;
|
||||
if (signatureList.size() <= signatureIndex) {
|
||||
log.add(LogType.MSG_DC_ERROR_NO_SIGNATURE, indent);
|
||||
return false;
|
||||
}
|
||||
|
||||
// PGPOnePassSignature and PGPSignature packets are "bracketed",
|
||||
// so we need to take the last-minus-index'th element here
|
||||
PGPSignature messageSignature = signatureList.get(signatureList.size() - 1 - signatureIndex);
|
||||
|
||||
// Verify signature
|
||||
boolean validSignature = onePassSignature.verify(messageSignature);
|
||||
if (validSignature) {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_OK, indent + 1);
|
||||
} else {
|
||||
log.add(LogType.MSG_DC_CLEAR_SIGNATURE_BAD, indent + 1);
|
||||
}
|
||||
|
||||
// check for insecure hash algorithms
|
||||
if (!PgpSecurityConstants.isSecureHashAlgorithm(onePassSignature.getHashAlgorithm())) {
|
||||
log.add(LogType.MSG_DC_INSECURE_HASH_ALGO, indent + 1);
|
||||
signatureResultBuilder.setInsecure(true);
|
||||
}
|
||||
|
||||
signatureResultBuilder.setValidSignature(validSignature);
|
||||
|
||||
return true;
|
||||
|
||||
}
|
||||
|
||||
public byte[] getSigningFingerprint() {
|
||||
return signingKey.getFingerprint();
|
||||
}
|
||||
|
||||
public OpenPgpSignatureResult getSignatureResult() {
|
||||
return signatureResultBuilder.build();
|
||||
}
|
||||
|
||||
/**
|
||||
* Mostly taken from ClearSignedFileProcessor in Bouncy Castle
|
||||
*/
|
||||
|
||||
private static void processLine(PGPSignature sig, byte[] line)
|
||||
throws SignatureException {
|
||||
int length = getLengthWithoutWhiteSpace(line);
|
||||
if (length > 0) {
|
||||
sig.update(line, 0, length);
|
||||
}
|
||||
}
|
||||
|
||||
private static int readInputLine(ByteArrayOutputStream bOut, InputStream fIn)
|
||||
throws IOException {
|
||||
bOut.reset();
|
||||
|
||||
int lookAhead = -1;
|
||||
int ch;
|
||||
|
||||
while ((ch = fIn.read()) >= 0) {
|
||||
bOut.write(ch);
|
||||
if (ch == '\r' || ch == '\n') {
|
||||
lookAhead = readPastEOL(bOut, ch, fIn);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return lookAhead;
|
||||
}
|
||||
|
||||
private static int readInputLine(ByteArrayOutputStream bOut, int lookAhead, InputStream fIn)
|
||||
throws IOException {
|
||||
bOut.reset();
|
||||
|
||||
int ch = lookAhead;
|
||||
|
||||
do {
|
||||
bOut.write(ch);
|
||||
if (ch == '\r' || ch == '\n') {
|
||||
lookAhead = readPastEOL(bOut, ch, fIn);
|
||||
break;
|
||||
}
|
||||
} while ((ch = fIn.read()) >= 0);
|
||||
|
||||
if (ch < 0) {
|
||||
lookAhead = -1;
|
||||
}
|
||||
|
||||
return lookAhead;
|
||||
}
|
||||
|
||||
private static int readPastEOL(ByteArrayOutputStream bOut, int lastCh, InputStream fIn)
|
||||
throws IOException {
|
||||
int lookAhead = fIn.read();
|
||||
|
||||
if (lastCh == '\r' && lookAhead == '\n') {
|
||||
bOut.write(lookAhead);
|
||||
lookAhead = fIn.read();
|
||||
}
|
||||
|
||||
return lookAhead;
|
||||
}
|
||||
|
||||
private static int getLengthWithoutWhiteSpace(byte[] line) {
|
||||
int end = line.length - 1;
|
||||
|
||||
while (end >= 0 && isWhiteSpace(line[end])) {
|
||||
end--;
|
||||
}
|
||||
|
||||
return end + 1;
|
||||
}
|
||||
|
||||
private static boolean isWhiteSpace(byte b) {
|
||||
return b == '\r' || b == '\n' || b == '\t' || b == ' ';
|
||||
}
|
||||
|
||||
}
|
||||
@@ -436,7 +436,6 @@
|
||||
<string name="progress_decrypting">"decrypting data…"</string>
|
||||
<string name="progress_preparing_signature">"preparing signature…"</string>
|
||||
<string name="progress_generating_signature">"generating signature…"</string>
|
||||
<string name="progress_processing_signature">"processing signature…"</string>
|
||||
<string name="progress_verifying_signature">"verifying signature…"</string>
|
||||
<string name="progress_signing">"signing…"</string>
|
||||
<string name="progress_certifying">"certifying…"</string>
|
||||
@@ -1174,6 +1173,7 @@
|
||||
<string name="msg_dc_error_input">"Error opening input data stream!"</string>
|
||||
<string name="msg_dc_error_no_data">"No encrypted data found in stream!"</string>
|
||||
<string name="msg_dc_error_no_key">"No encrypted data with known secret key found in stream!"</string>
|
||||
<string name="msg_dc_error_no_signature">"Missing signature data!"</string>
|
||||
<string name="msg_dc_error_pgp_exception">"Encountered OpenPGP Exception during operation!"</string>
|
||||
<string name="msg_dc_integrity_check_ok">"Integrity check OK!"</string>
|
||||
<string name="msg_dc_ok_meta_only">"Only metadata was requested, skipping decryption"</string>
|
||||
@@ -1197,8 +1197,9 @@
|
||||
|
||||
<!-- Messages for VerifySignedLiteralData operation -->
|
||||
<string name="msg_vl">"Starting signature check"</string>
|
||||
<string name="msg_vl_error_no_siglist">"No signature list in signed literal data"</string>
|
||||
<string name="msg_vl_error_wrong_key">"Message not signed with right key"</string>
|
||||
<string name="msg_vl_error_no_siglist">"No signature list in signed literal data!"</string>
|
||||
<string name="msg_vl_error_wrong_key">"Message not signed with expected key!"</string>
|
||||
<string name="msg_vl_error_no_signature">"Missing signature data!"</string>
|
||||
<string name="msg_vl_error_missing_literal">"No payload in signed literal data"</string>
|
||||
<string name="msg_vl_clear_meta_file">"Filename: %s"</string>
|
||||
<string name="msg_vl_clear_meta_mime">"MIME type: %s"</string>
|
||||
@@ -1220,7 +1221,6 @@
|
||||
|
||||
<!-- Messages for PgpSignEncrypt operation -->
|
||||
<string name="msg_pse_asymmetric">"Preparing public keys for encryption"</string>
|
||||
<string name="msg_pse_clearsign_only">"Signing of cleartext input not supported!"</string>
|
||||
<string name="msg_pse_compressing">"Preparing compression"</string>
|
||||
<string name="msg_pse_encrypting">"Encrypting data"</string>
|
||||
<string name="msg_pse_error_bad_passphrase">"Bad password!"</string>
|
||||
|
||||
@@ -27,6 +27,7 @@ import java.util.Date;
|
||||
import java.util.HashSet;
|
||||
import java.util.Iterator;
|
||||
|
||||
import org.apache.tools.ant.util.StringUtils;
|
||||
import org.junit.Assert;
|
||||
import org.junit.Before;
|
||||
import org.junit.BeforeClass;
|
||||
@@ -287,7 +288,7 @@ public class PgpEncryptDecryptTest {
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testAsymmetricSign() {
|
||||
public void testAsymmetricSignLiteral() {
|
||||
|
||||
String plaintext = "dies ist ein plaintext ☭" + TestingUtils.genPassphrase(true);
|
||||
byte[] ciphertext;
|
||||
@@ -340,6 +341,121 @@ public class PgpEncryptDecryptTest {
|
||||
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testAsymmetricSignCleartext() {
|
||||
|
||||
String plaintext = "dies ist ein\r\nplaintext\n ☭" + TestingUtils.genPassphrase(true);
|
||||
byte[] ciphertext;
|
||||
|
||||
{ // encrypt data with key
|
||||
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||
ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
|
||||
|
||||
PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
|
||||
new ProviderHelper(RuntimeEnvironment.application), null);
|
||||
|
||||
InputData data = new InputData(in, in.available());
|
||||
PgpSignEncryptInputParcel input = new PgpSignEncryptInputParcel();
|
||||
|
||||
// only sign, as cleartext
|
||||
input.setSignatureMasterKeyId(mStaticRing1.getMasterKeyId());
|
||||
input.setSignatureSubKeyId(KeyringTestingHelper.getSubkeyId(mStaticRing1, 1));
|
||||
input.setCleartextSignature(true);
|
||||
input.setEnableAsciiArmorOutput(true);
|
||||
input.setDetachedSignature(false);
|
||||
|
||||
PgpSignEncryptResult result = op.execute(input, new CryptoInputParcel(mKeyPhrase1), data, out);
|
||||
Assert.assertTrue("signing must succeed", result.success());
|
||||
|
||||
ciphertext = out.toByteArray();
|
||||
}
|
||||
|
||||
Assert.assertTrue("clearsigned text must contain plaintext (ignoring newlines)",
|
||||
new String(ciphertext).replace("\r\n", "").contains(plaintext.replace("\r", "").replace("\n", "")));
|
||||
|
||||
{ // verification should succeed
|
||||
|
||||
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||
ByteArrayInputStream in = new ByteArrayInputStream(ciphertext);
|
||||
InputData data = new InputData(in, in.available());
|
||||
|
||||
PgpDecryptVerifyOperation op = operationWithFakePassphraseCache(null, null, null);
|
||||
PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel();
|
||||
DecryptVerifyResult result = op.execute(input, new CryptoInputParcel(), data, out);
|
||||
|
||||
Assert.assertTrue("verification must succeed", result.success());
|
||||
|
||||
Assert.assertTrue("verification text should equal plaintext (ignoring newlines)",
|
||||
new String(out.toByteArray()).replace(StringUtils.LINE_SEP, "")
|
||||
.equals(plaintext.replace("\r", "").replace("\n", "")));
|
||||
Assert.assertEquals("decryptionResult should be RESULT_NOT_ENCRYPTED",
|
||||
OpenPgpDecryptionResult.RESULT_NOT_ENCRYPTED, result.getDecryptionResult().getResult());
|
||||
Assert.assertEquals("signatureResult should be RESULT_VALID_CONFIRMED",
|
||||
OpenPgpSignatureResult.RESULT_VALID_CONFIRMED, result.getSignatureResult().getResult());
|
||||
|
||||
OpenPgpMetadata metadata = result.getDecryptionMetadata();
|
||||
Assert.assertEquals("filesize must be correct",
|
||||
out.toByteArray().length, metadata.getOriginalSize());
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testAsymmetricSignDetached() {
|
||||
|
||||
String plaintext = "dies ist ein plaintext ☭" + TestingUtils.genPassphrase(true);
|
||||
byte[] detachedSignature;
|
||||
|
||||
{ // encrypt data with key
|
||||
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||
ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
|
||||
|
||||
PgpSignEncryptOperation op = new PgpSignEncryptOperation(RuntimeEnvironment.application,
|
||||
new ProviderHelper(RuntimeEnvironment.application), null);
|
||||
|
||||
InputData data = new InputData(in, in.available());
|
||||
PgpSignEncryptInputParcel input = new PgpSignEncryptInputParcel();
|
||||
|
||||
// only sign, as cleartext
|
||||
input.setSignatureMasterKeyId(mStaticRing1.getMasterKeyId());
|
||||
input.setSignatureSubKeyId(KeyringTestingHelper.getSubkeyId(mStaticRing1, 1));
|
||||
input.setDetachedSignature(true);
|
||||
|
||||
PgpSignEncryptResult result = op.execute(input, new CryptoInputParcel(mKeyPhrase1), data, out);
|
||||
Assert.assertTrue("signing must succeed", result.success());
|
||||
|
||||
detachedSignature = result.getDetachedSignature();
|
||||
}
|
||||
|
||||
{ // verification should succeed
|
||||
|
||||
ByteArrayOutputStream out = new ByteArrayOutputStream();
|
||||
ByteArrayInputStream in = new ByteArrayInputStream(plaintext.getBytes());
|
||||
InputData data = new InputData(in, in.available());
|
||||
|
||||
PgpDecryptVerifyOperation op = operationWithFakePassphraseCache(null, null, null);
|
||||
PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel();
|
||||
input.setDetachedSignature(detachedSignature);
|
||||
DecryptVerifyResult result = op.execute(input, new CryptoInputParcel(), data, out);
|
||||
|
||||
Assert.assertTrue("verification must succeed", result.success());
|
||||
Assert.assertArrayEquals("verification text should equal plaintext (save for a newline)",
|
||||
plaintext.getBytes(), out.toByteArray());
|
||||
Assert.assertEquals("decryptionResult should be RESULT_NOT_ENCRYPTED",
|
||||
OpenPgpDecryptionResult.RESULT_NOT_ENCRYPTED, result.getDecryptionResult().getResult());
|
||||
Assert.assertEquals("signatureResult should be RESULT_VALID_CONFIRMED",
|
||||
OpenPgpSignatureResult.RESULT_VALID_CONFIRMED, result.getSignatureResult().getResult());
|
||||
|
||||
// TODO should detached verify return any metadata?
|
||||
// OpenPgpMetadata metadata = result.getDecryptionMetadata();
|
||||
// Assert.assertEquals("filesize must be correct",
|
||||
// out.toByteArray().length, metadata.getOriginalSize());
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testAsymmetricEncryptDecrypt() {
|
||||
|
||||
|
||||
Reference in New Issue
Block a user