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Code Issues 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

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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
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2
res/values/strings.xml
View File

@ -46,6 +46,7 @@
<string name="section_keys">Keys</string>
<string name="section_general">General</string>
<string name="section_defaults">Defaults</string>
<string name="section_advanced">Advanced</string>
<!-- btn_lowerCase: capitalized words, no punctuation -->
<string name="btn_signToClipboard">Sign To Clipboard</string>
@ -106,6 +107,7 @@
<string name="label_messageCompression">Message Compression</string>
<string name="label_fileCompression">File Compression</string>
<string name="label_language">Language</string>
<string name="label_forceV3Signature">Force V3 Signatures</string>
<string name="noKeysSelected">Select</string>
<string name="oneKeySelected">1 Selected</string>

10
res/xml/apg_preferences.xml
View File

@ -66,4 +66,14 @@
</PreferenceCategory>
<PreferenceCategory
android:title="@string/section_advanced">
<CheckBoxPreference
android:persistent="false"
android:key="forceV3Signatures"
android:title="@string/label_forceV3Signature" />
</PreferenceCategory>
</PreferenceScreen>

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;

1
src/org/thialfihar/android/apg/Constants.java
View File

@ -33,5 +33,6 @@ public final class Constants {
public static final String default_file_compression = "defaultFileCompression";
public static final String pass_phrase_cache_ttl = "passPhraseCacheTtl";
public static final String language = "language";
public static final String force_v3_signatures = "forceV3Signatures";
}
}

32
src/org/thialfihar/android/apg/EncryptActivity.java
View File

@ -619,16 +619,15 @@ public class EncryptActivity extends BaseActivity {
String error = null;
Bundle data = new Bundle();
Message msg = new Message();
fillDataSource();
fillDataDestination();
try {
InputData in;
OutputStream out;
boolean useAsciiArmour = true;
long encryptionKeyIds[] = null;
long signatureKeyId = 0;
boolean signOnly = false;
int compressionId = 0;
boolean signOnly = false;
String passPhrase = null;
if (mMode.getCurrentView().getId() == R.id.modeSymmetric) {
@ -642,6 +641,9 @@ public class EncryptActivity extends BaseActivity {
signOnly = (mEncryptionKeyIds == null || mEncryptionKeyIds.length == 0);
}
fillDataSource(signOnly && !mReturnResult);
fillDataDestination();
// streams
in = mDataSource.getInputData(this, true);
out = mDataDestination.getOutputStream(this);
@ -661,14 +663,18 @@ public class EncryptActivity extends BaseActivity {
if (signOnly) {
Apg.signText(this, in, out, getSecretKeyId(),
Apg.getCachedPassPhrase(getSecretKeyId()),
mPreferences.getDefaultHashAlgorithm(), this);
mPreferences.getDefaultHashAlgorithm(),
mPreferences.getForceV3Signatures(),
this);
} else {
Apg.encrypt(this, in, out, useAsciiArmour,
encryptionKeyIds, signatureKeyId,
Apg.getCachedPassPhrase(signatureKeyId), this,
mPreferences.getDefaultEncryptionAlgorithm(),
mPreferences.getDefaultHashAlgorithm(),
compressionId, passPhrase);
compressionId,
mPreferences.getForceV3Signatures(),
passPhrase);
}
out.close();
@ -930,7 +936,7 @@ public class EncryptActivity extends BaseActivity {
return super.onCreateDialog(id);
}
protected void fillDataSource() {
protected void fillDataSource(boolean fixContent) {
mDataSource = new DataSource();
if (mContentUri != null) {
mDataSource.setUri(mContentUri);
@ -940,7 +946,19 @@ public class EncryptActivity extends BaseActivity {
if (mData != null) {
mDataSource.setData(mData);
} else {
mDataSource.setText(mMessage.getText().toString());
String message = mMessage.getText().toString();
if (fixContent) {
// fix the message a bit, trailing spaces and newlines break stuff,
// because GMail sends as HTML and such things fuck up the
// signature,
// TODO: things like "<" and ">" also fuck up the signature
message = message.replaceAll(" +\n", "\n");
message = message.replaceAll("\n\n+", "\n\n");
message = message.replaceFirst("^\n+", "");
// make sure there'll be exactly one newline at the end
message = message.replaceFirst("\n*$", "\n");
}
mDataSource.setText(message);
}
}
}

10
src/org/thialfihar/android/apg/Preferences.java
View File

@ -103,6 +103,16 @@ public class Preferences {
editor.commit();
}
public boolean getForceV3Signatures() {
return mSharedPreferences.getBoolean(Constants.pref.force_v3_signatures, false);
}
public void setForceV3Signatures(boolean value) {
SharedPreferences.Editor editor = mSharedPreferences.edit();
editor.putBoolean(Constants.pref.force_v3_signatures, value);
editor.commit();
}
public boolean hasSeenChangeLog(String version) {
return mSharedPreferences.getBoolean(Constants.pref.has_seen_change_log + version,
false);

13
src/org/thialfihar/android/apg/PreferencesActivity.java
View File

@ -37,6 +37,7 @@ public class PreferencesActivity extends PreferenceActivity {
private IntegerListPreference mMessageCompression = null;
private IntegerListPreference mFileCompression = null;
private CheckBoxPreference mAsciiArmour = null;
private CheckBoxPreference mForceV3Signatures = null;
private Preferences mPreferences;
@Override
@ -210,6 +211,18 @@ public class PreferencesActivity extends PreferenceActivity {
return false;
}
});
mForceV3Signatures = (CheckBoxPreference) findPreference(Constants.pref.force_v3_signatures);
mForceV3Signatures.setChecked(mPreferences.getForceV3Signatures());
mForceV3Signatures.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener()
{
public boolean onPreferenceChange(Preference preference, Object newValue)
{
mForceV3Signatures.setChecked((Boolean)newValue);
mPreferences.setForceV3Signatures((Boolean)newValue);
return false;
}
});
}
}