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api: add micalg result extra to detached signature api call

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This commit is contained in:
Vincent Breitmoser
2015-12-17 01:08:23 +01:00
parent 5344307e22
commit e32c1a9ced
5 changed files with 21 additions and 2 deletions
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8
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptOperation.java
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@@ -32,6 +32,7 @@ import org.spongycastle.openpgp.PGPException;
import org.spongycastle.openpgp.PGPLiteralData;
import org.spongycastle.openpgp.PGPLiteralDataGenerator;
import org.spongycastle.openpgp.PGPSignatureGenerator;
import org.spongycastle.openpgp.PGPUtil;
import org.spongycastle.openpgp.operator.jcajce.JcePBEKeyEncryptionMethodGenerator;
import org.spongycastle.openpgp.operator.jcajce.JcePGPDataEncryptorBuilder;
import org.spongycastle.openpgp.operator.jcajce.NfcSyncPGPContentSignerBuilder;
@@ -574,6 +575,13 @@ public class PgpSignEncryptOperation extends BaseOperation {
// silently catch
}
result.setDetachedSignature(detachedByteOut.toByteArray());
try {
String digestName = PGPUtil.getDigestName(input.getSignatureHashAlgorithm());
// construct micalg parameter according to https://tools.ietf.org/html/rfc3156#section-5
result.setMicAlgDigestName("pgp-" + digestName.toLowerCase());
} catch (PGPException e) {
Log.e(Constants.TAG, "error setting micalg parameter!", e);
}
}
return result;
}