cthrace/open-keychain
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

added a "force V3 signature" setting similar to the GPG version, hopefully making APG useful for some special cases where that is needed

Browse Source 
Update issue 39
Two new strings:
<string name="section_advanced">Advanced</string>
<string name="label_forceV3Signature">Force V3 Signatures</string>

"V3" is just "version 3" and should remain untranslated, both strings can be seen at the bottom of the preferences activity.
This commit is contained in:
Thialfihar
2010-07-27 22:41:50 +00:00
parent 20f7755b2c
commit b13eb7dbf3
7 changed files with 151 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

118
src/org/thialfihar/android/apg/Apg.java
View File

@@ -78,6 +78,7 @@ import org.bouncycastle2.openpgp.PGPSignatureList;
import org.bouncycastle2.openpgp.PGPSignatureSubpacketGenerator;
import org.bouncycastle2.openpgp.PGPSignatureSubpacketVector;
import org.bouncycastle2.openpgp.PGPUtil;
import org.bouncycastle2.openpgp.PGPV3SignatureGenerator;
import org.thialfihar.android.apg.provider.DataProvider;
import org.thialfihar.android.apg.provider.Database;
import org.thialfihar.android.apg.provider.KeyRings;
@@ -1123,6 +1124,7 @@ public class Apg {
String signaturePassPhrase,
ProgressDialogUpdater progress,
int symmetricAlgorithm, int hashAlgorithm, int compression,
boolean forceV3Signature,
String passPhrase)
throws IOException, GeneralException, PGPException, NoSuchProviderException,
NoSuchAlgorithmException, SignatureException {
@@ -1165,7 +1167,6 @@ public class Apg {
new BouncyCastleProvider());
}
PGPSignatureGenerator signatureGenerator = null;
progress.setProgress(R.string.progress_preparingStreams, 5, 100);
// encrypt and compress input file content
PGPEncryptedDataGenerator cPk =
@@ -1184,18 +1185,29 @@ public class Apg {
}
encryptOut = cPk.open(out, new byte[1 << 16]);
PGPSignatureGenerator signatureGenerator = null;
PGPV3SignatureGenerator signatureV3Generator = null;
if (signatureKeyId != 0) {
progress.setProgress(R.string.progress_preparingSignature, 10, 100);
signatureGenerator =
new PGPSignatureGenerator(signingKey.getPublicKey().getAlgorithm(),
hashAlgorithm,
new BouncyCastleProvider());
signatureGenerator.initSign(PGPSignature.BINARY_DOCUMENT, signaturePrivateKey);
String userId = getMainUserId(getMasterKey(signingKeyRing));
if (forceV3Signature) {
signatureV3Generator =
new PGPV3SignatureGenerator(signingKey.getPublicKey().getAlgorithm(),
hashAlgorithm,
new BouncyCastleProvider());
signatureV3Generator.initSign(PGPSignature.BINARY_DOCUMENT, signaturePrivateKey);
} else {
signatureGenerator =
new PGPSignatureGenerator(signingKey.getPublicKey().getAlgorithm(),
hashAlgorithm,
new BouncyCastleProvider());
signatureGenerator.initSign(PGPSignature.BINARY_DOCUMENT, signaturePrivateKey);
PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator();
spGen.setSignerUserID(false, userId);
signatureGenerator.setHashedSubpackets(spGen.generate());
String userId = getMainUserId(getMasterKey(signingKeyRing));
PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator();
spGen.setSignerUserID(false, userId);
signatureGenerator.setHashedSubpackets(spGen.generate());
}
}
PGPCompressedDataGenerator compressGen = null;
@@ -1207,7 +1219,11 @@ public class Apg {
bcpgOut = new BCPGOutputStream(compressGen.open(encryptOut));
}
if (signatureKeyId != 0) {
signatureGenerator.generateOnePassVersion(false).encode(bcpgOut);
if (forceV3Signature) {
signatureV3Generator.generateOnePassVersion(false).encode(bcpgOut);
} else {
signatureGenerator.generateOnePassVersion(false).encode(bcpgOut);
}
}
PGPLiteralDataGenerator literalGen = new PGPLiteralDataGenerator();
@@ -1223,7 +1239,11 @@ public class Apg {
while ((n = in.read(buffer)) > 0) {
pOut.write(buffer, 0, n);
if (signatureKeyId != 0) {
signatureGenerator.update(buffer, 0, n);
if (forceV3Signature) {
signatureV3Generator.update(buffer, 0, n);
} else {
signatureGenerator.update(buffer, 0, n);
}
}
done += n;
if (data.getSize() != 0) {
@@ -1235,7 +1255,11 @@ public class Apg {
if (signatureKeyId != 0) {
progress.setProgress(R.string.progress_generatingSignature, 95, 100);
signatureGenerator.generate().encode(pOut);
if (forceV3Signature) {
signatureV3Generator.generate().encode(pOut);
} else {
signatureGenerator.generate().encode(pOut);
}
}
if (compressGen != null) {
compressGen.close();
@@ -1252,6 +1276,7 @@ public class Apg {
InputData data, OutputStream outStream,
long signatureKeyId, String signaturePassPhrase,
int hashAlgorithm,
boolean forceV3Signature,
ProgressDialogUpdater progress)
throws GeneralException, PGPException, IOException, NoSuchAlgorithmException,
SignatureException {
@@ -1281,20 +1306,30 @@ public class Apg {
signingKey.extractPrivateKey(signaturePassPhrase.toCharArray(),
new BouncyCastleProvider());
PGPSignatureGenerator signatureGenerator = null;
progress.setProgress(R.string.progress_preparingStreams, 0, 100);
progress.setProgress(R.string.progress_preparingSignature, 30, 100);
signatureGenerator =
new PGPSignatureGenerator(signingKey.getPublicKey().getAlgorithm(),
hashAlgorithm,
new BouncyCastleProvider());
signatureGenerator.initSign(PGPSignature.CANONICAL_TEXT_DOCUMENT, signaturePrivateKey);
String userId = getMainUserId(getMasterKey(signingKeyRing));
PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator();
spGen.setSignerUserID(false, userId);
signatureGenerator.setHashedSubpackets(spGen.generate());
PGPSignatureGenerator signatureGenerator = null;
PGPV3SignatureGenerator signatureV3Generator = null;
if (forceV3Signature) {
signatureV3Generator =
new PGPV3SignatureGenerator(signingKey.getPublicKey().getAlgorithm(),
hashAlgorithm,
new BouncyCastleProvider());
signatureV3Generator.initSign(PGPSignature.CANONICAL_TEXT_DOCUMENT, signaturePrivateKey);
} else {
signatureGenerator =
new PGPSignatureGenerator(signingKey.getPublicKey().getAlgorithm(),
hashAlgorithm,
new BouncyCastleProvider());
signatureGenerator.initSign(PGPSignature.CANONICAL_TEXT_DOCUMENT, signaturePrivateKey);
PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator();
String userId = getMainUserId(getMasterKey(signingKeyRing));
spGen.setSignerUserID(false, userId);
signatureGenerator.setHashedSubpackets(spGen.generate());
}
progress.setProgress(R.string.progress_signing, 40, 100);
@@ -1304,16 +1339,29 @@ public class Apg {
InputStream inStream = data.getInputStream();
int lookAhead = readInputLine(lineOut, inStream);
processLine(armorOut, signatureGenerator, lineOut.toByteArray());
if (forceV3Signature) {
processLine(armorOut, signatureV3Generator, lineOut.toByteArray());
} else {
processLine(armorOut, signatureGenerator, lineOut.toByteArray());
}
if (lookAhead != -1) {
do {
lookAhead = readInputLine(lineOut, lookAhead, inStream);
signatureGenerator.update((byte)'\r');
signatureGenerator.update((byte)'\n');
if (forceV3Signature) {
signatureV3Generator.update((byte)'\r');
signatureV3Generator.update((byte)'\n');
} else {
signatureGenerator.update((byte)'\r');
signatureGenerator.update((byte)'\n');
}
processLine(armorOut, signatureGenerator, lineOut.toByteArray());
if (forceV3Signature) {
processLine(armorOut, signatureV3Generator, lineOut.toByteArray());
} else {
processLine(armorOut, signatureGenerator, lineOut.toByteArray());
}
}
while (lookAhead != -1);
}
@@ -1321,7 +1369,11 @@ public class Apg {
armorOut.endClearText();
BCPGOutputStream bOut = new BCPGOutputStream(armorOut);
signatureGenerator.generate().encode(bOut);
if (forceV3Signature) {
signatureV3Generator.generate().encode(bOut);
} else {
signatureGenerator.generate().encode(bOut);
}
armorOut.close();
progress.setProgress(R.string.progress_done, 100, 100);
@@ -1802,6 +1854,16 @@ public class Apg {
aOut.write(line, 0, line.length);
}
private static void processLine(OutputStream aOut, PGPV3SignatureGenerator sGen, byte[] line)
throws SignatureException, IOException {
int length = getLengthWithoutWhiteSpace(line);
if (length > 0) {
sGen.update(line, 0, length);
}
aOut.write(line, 0, line.length);
}
private static int getLengthWithoutSeparator(byte[] line) {
int end = line.length - 1;