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-implementation of "--send-key"

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-implementation of "--sign-key"
-partial implementation of exchanging/verifying keys via QR Code
This commit is contained in:
senecaso
2011-10-17 10:07:37 +09:00
parent 6f2333b7d3
commit debb90409a
18 changed files with 923 additions and 112 deletions
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184
src/org/thialfihar/android/apg/Apg.java
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@@ -61,6 +61,7 @@ import org.spongycastle.openpgp.PGPEncryptedDataGenerator;
import org.spongycastle.openpgp.PGPEncryptedDataList;
import org.spongycastle.openpgp.PGPException;
import org.spongycastle.openpgp.PGPKeyPair;
import org.spongycastle.openpgp.PGPKeyRing;
import org.spongycastle.openpgp.PGPKeyRingGenerator;
import org.spongycastle.openpgp.PGPLiteralData;
import org.spongycastle.openpgp.PGPLiteralDataGenerator;
@@ -81,6 +82,7 @@ import org.spongycastle.openpgp.PGPSignatureSubpacketGenerator;
import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
import org.spongycastle.openpgp.PGPUtil;
import org.spongycastle.openpgp.PGPV3SignatureGenerator;
import org.thialfihar.android.apg.KeyServer.AddKeyException;
import org.thialfihar.android.apg.provider.DataProvider;
import org.thialfihar.android.apg.provider.Database;
import org.thialfihar.android.apg.provider.KeyRings;
@@ -119,6 +121,8 @@ public class Apg {
public static final String LOOK_UP_KEY_ID = "org.thialfihar.android.apg.intent.LOOK_UP_KEY_ID";
public static final String LOOK_UP_KEY_ID_AND_RETURN = "org.thialfihar.android.apg.intent.LOOK_UP_KEY_ID_AND_RETURN";
public static final String GENERATE_SIGNATURE = "org.thialfihar.android.apg.intent.GENERATE_SIGNATURE";
public static final String EXPORT_KEY_TO_SERVER = "org.thialfihar.android.apg.intent.EXPORT_KEY_TO_SERVER";
public static final String IMPORT_FROM_QR_CODE = "org.thialfihar.android.apg.intent.IMPORT_FROM_QR_CODE";
}
public static final String EXTRA_TEXT = "text";
@@ -147,6 +151,7 @@ public class Apg {
public static final String EXTRA_ASCII_ARMOUR = "asciiArmour";
public static final String EXTRA_BINARY = "binary";
public static final String EXTRA_KEY_SERVERS = "keyServers";
public static final String EXTRA_EXPECTED_FINGERPRINT = "org.thialfihar.android.apg.EXPECTED_FINGERPRINT";
public static final String AUTHORITY = DataProvider.AUTHORITY;
@@ -590,6 +595,75 @@ public class Apg {
progress.setProgress(R.string.progress_done, 100, 100);
}
public static PGPKeyRing decodeKeyRing(InputStream is) throws IOException {
InputStream in = PGPUtil.getDecoderStream(is);
PGPObjectFactory objectFactory = new PGPObjectFactory(in);
Object obj = objectFactory.nextObject();
if (obj instanceof PGPKeyRing) {
return (PGPKeyRing) obj;
}
return null;
}
public static int storeKeyRingInCache(PGPKeyRing keyring) {
int status = Integer.MIN_VALUE; // out of bounds value (Id.retrun_value.*)
try {
if (keyring instanceof PGPSecretKeyRing) {
PGPSecretKeyRing secretKeyRing = (PGPSecretKeyRing) keyring;
boolean save = true;
try {
PGPPrivateKey testKey = secretKeyRing.getSecretKey().extractPrivateKey(new char[] {}, new BouncyCastleProvider());
if (testKey == null) {
// this is bad, something is very wrong... likely a --export-secret-subkeys export
save = false;
status = Id.return_value.bad;
}
} catch (PGPException e) {
// all good if this fails, we likely didn't use the right password
}
if (save) {
status = mDatabase.saveKeyRing(secretKeyRing);
}
} else if (keyring instanceof PGPPublicKeyRing) {
PGPPublicKeyRing publicKeyRing = (PGPPublicKeyRing) keyring;
status = mDatabase.saveKeyRing(publicKeyRing);
}
} catch (IOException e) {
status = Id.return_value.error;
} catch (Database.GeneralException e) {
status = Id.return_value.error;
}
return status;
}
public static boolean uploadKeyRingToServer(HkpKeyServer server, PGPPublicKeyRing keyring) {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ArmoredOutputStream aos = new ArmoredOutputStream(bos);
try {
aos.write(keyring.getEncoded());
aos.close();
String armouredKey = bos.toString("UTF-8");
server.add(armouredKey);
return true;
} catch (IOException e) {
return false;
} catch(AddKeyException e) {
// TODO: tell the user?
return false;
} finally {
try {
bos.close();
} catch (IOException e) {
}
}
}
public static Bundle importKeyRings(Activity context, int type,
InputData data,
@@ -616,64 +690,32 @@ public class Apg {
int oldKeys = 0;
int badKeys = 0;
try {
while (true) {
InputStream in = PGPUtil.getDecoderStream(bufferedInput);
PGPObjectFactory objectFactory = new PGPObjectFactory(in);
Object obj = objectFactory.nextObject();
// if the first is already a null object, then we can stop trying
if (obj == null) {
break;
PGPKeyRing keyring = decodeKeyRing(bufferedInput);
while (keyring != null) {
int status = Integer.MIN_VALUE; // out of bounds value
// if this key is what we expect it to be, save it
if ((type == Id.type.secret_key && keyring instanceof PGPSecretKeyRing) ||
(type == Id.type.public_key && keyring instanceof PGPPublicKeyRing)) {
status = storeKeyRingInCache(keyring);
}
while (obj != null) {
PGPPublicKeyRing publicKeyRing;
PGPSecretKeyRing secretKeyRing;
// a return value that doesn't match any Id.return_value.* values, in case
// saveKeyRing is never called
int retValue = 2107;
try {
if (type == Id.type.secret_key && obj instanceof PGPSecretKeyRing) {
secretKeyRing = (PGPSecretKeyRing) obj;
boolean save = true;
try {
PGPPrivateKey testKey = secretKeyRing.getSecretKey()
.extractPrivateKey(new char[] {}, new BouncyCastleProvider());
if (testKey == null) {
// this is bad, something is very wrong... likely a
// --export-secret-subkeys export
retValue = Id.return_value.bad;
save = false;
}
} catch (PGPException e) {
// all good if this fails, we likely didn't use the right password
}
if (save) {
retValue = mDatabase.saveKeyRing(secretKeyRing);
}
} else if (type == Id.type.public_key && obj instanceof PGPPublicKeyRing) {
publicKeyRing = (PGPPublicKeyRing) obj;
retValue = mDatabase.saveKeyRing(publicKeyRing);
}
} catch (IOException e) {
retValue = Id.return_value.error;
} catch (Database.GeneralException e) {
retValue = Id.return_value.error;
}
if (retValue == Id.return_value.error) {
throw new GeneralException(context.getString(R.string.error_savingKeys));
}
if (retValue == Id.return_value.updated) {
++oldKeys;
} else if (retValue == Id.return_value.ok) {
++newKeys;
} else if (retValue == Id.return_value.bad) {
++badKeys;
}
progress.setProgress((int)(100 * progressIn.position() / data.getSize()), 100);
obj = objectFactory.nextObject();
if (status == Id.return_value.error) {
throw new GeneralException(context.getString(R.string.error_savingKeys));
}
// update the counts to display to the user at the end
if (status == Id.return_value.updated) {
++oldKeys;
} else if (status == Id.return_value.ok) {
++newKeys;
} else if (status == Id.return_value.bad) {
++badKeys;
}
progress.setProgress((int)(100 * progressIn.position() / data.getSize()), 100);
keyring = decodeKeyRing(bufferedInput);
}
} catch (EOFException e) {
// nothing to do, we are done
@@ -1038,18 +1080,8 @@ public class Apg {
return algorithmStr + ", " + keySize + "bit";
}
public static String getFingerPrint(long keyId) {
PGPPublicKey key = Apg.getPublicKey(keyId);
if (key == null) {
PGPSecretKey secretKey = Apg.getSecretKey(keyId);
if (secretKey == null) {
return "";
}
key = secretKey.getPublicKey();
}
public static String convertToHex(byte[] fp) {
String fingerPrint = "";
byte fp[] = key.getFingerprint();
for (int i = 0; i < fp.length; ++i) {
if (i != 0 && i % 10 == 0) {
fingerPrint += " ";
@@ -1064,6 +1096,20 @@ public class Apg {
}
return fingerPrint;
}
public static String getFingerPrint(long keyId) {
PGPPublicKey key = Apg.getPublicKey(keyId);
if (key == null) {
PGPSecretKey secretKey = Apg.getSecretKey(keyId);
if (secretKey == null) {
return "";
}
key = secretKey.getPublicKey();
}
return convertToHex(key.getFingerprint());
}
public static String getSmallFingerPrint(long keyId) {
@@ -1089,8 +1135,8 @@ public class Apg {
mDatabase.deleteKeyRing(keyRingId);
}
public static Object getKeyRing(int keyRingId) {
return mDatabase.getKeyRing(keyRingId);
public static PGPKeyRing getKeyRing(int keyRingId) {
return (PGPKeyRing) mDatabase.getKeyRing(keyRingId);
}
public static PGPSecretKeyRing getSecretKeyRing(long keyId) {
@@ -1109,7 +1155,7 @@ public class Apg {
}
return null;
}
public static PGPPublicKeyRing getPublicKeyRing(long keyId) {
byte[] data = mDatabase.getKeyRingDataFromKeyId(Id.database.type_public, keyId);
if (data == null) {