diff options
Diffstat (limited to 'OpenPGP-Keychain/src/org/sufficientlysecure/keychain/helper/PgpHelper.java')
-rw-r--r-- | OpenPGP-Keychain/src/org/sufficientlysecure/keychain/helper/PgpHelper.java | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/helper/PgpHelper.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/helper/PgpHelper.java index b77fc71d1..697eb1aaa 100644 --- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/helper/PgpHelper.java +++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/helper/PgpHelper.java @@ -415,6 +415,30 @@ public class PgpHelper { return convertFingerprintToHex(key.getFingerprint()); } + public static boolean isSecretKeyPrivateEmpty(PGPSecretKey secretKey) { + try { + PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder() + .setProvider(PgpMain.BOUNCY_CASTLE_PROVIDER_NAME).build(new char[] {}); + PGPPrivateKey testKey = secretKey.extractPrivateKey( + keyDecryptor); + if (testKey != null) { + return false; + } + } catch (PGPException e) { + // all good if this fails, we likely didn't use the right password + } + return true; + } + + public static boolean isSecretKeyPrivateEmpty(Context context, long keyId) { + PGPSecretKey secretKey = ProviderHelper.getPGPSecretKeyByKeyId(context, keyId); + if (secretKey == null) { + Log.e(Constants.TAG, "Key could not be found!"); + return false; //could be a public key, assume it is not empty + } + return isSecretKeyPrivateEmpty(secretKey); + } + public static String getSmallFingerPrint(long keyId) { String fingerPrint = Long.toHexString(keyId & 0xffffffffL).toUpperCase(Locale.US); while (fingerPrint.length() < 8) { |