List of usage examples for org.bouncycastle.openpgp.operator.jcajce JcePBEKeyEncryptionMethodGenerator JcePBEKeyEncryptionMethodGenerator
public JcePBEKeyEncryptionMethodGenerator(char[] passPhrase)
From source file:com.bekwam.resignator.util.CryptUtils.java
License:Apache License
private byte[] encrypt(byte[] clearData, char[] passPhrase) throws IOException, PGPException, NoSuchProviderException { ByteArrayOutputStream bOut = new ByteArrayOutputStream(); ////from www .j av a 2 s . c o m // armor makes the encrypted output more readable (includes header, footer, printable chars) // OutputStream out = bOut; out = new ArmoredOutputStream(out); // // The standard jre installation limits keysize to 128. Use the unlimited jars to go higher. // PGPEncryptedDataGenerator encGen = new PGPEncryptedDataGenerator( new JcePGPDataEncryptorBuilder(SymmetricKeyAlgorithmTags.AES_128) .setSecureRandom(new SecureRandom()).setProvider("BC")); encGen.addMethod(new JcePBEKeyEncryptionMethodGenerator(passPhrase).setProvider("BC")); OutputStream encOut = encGen.open(out, clearData.length); encOut.write(clearData); encOut.close(); out.close(); return bOut.toByteArray(); }
From source file:org.apache.gobblin.crypto.GPGFileEncryptor.java
License:Apache License
/** * Taking in an input {@link OutputStream} and a passPhrase, return an {@link OutputStream} that can be used to output * encrypted output to the input {@link OutputStream}. * @param outputStream the output stream to hold the ciphertext {@link OutputStream} * @param passPhrase pass phrase// w ww. j a v a2 s.c om * @param cipher the symmetric cipher to use for encryption. If null or empty then a default cipher is used. * @return {@link OutputStream} to write content to for encryption * @throws IOException */ public OutputStream encryptFile(OutputStream outputStream, String passPhrase, String cipher) throws IOException { try { if (Security.getProvider(PROVIDER_NAME) == null) { Security.addProvider(new BouncyCastleProvider()); } PGPEncryptedDataGenerator cPk = new PGPEncryptedDataGenerator( new JcePGPDataEncryptorBuilder(symmetricKeyAlgorithmNameToTag(cipher)) .setSecureRandom(new SecureRandom()).setProvider(PROVIDER_NAME)); cPk.addMethod( new JcePBEKeyEncryptionMethodGenerator(passPhrase.toCharArray()).setProvider(PROVIDER_NAME)); OutputStream cOut = cPk.open(outputStream, new byte[BUFFER_SIZE]); PGPLiteralDataGenerator literalGen = new PGPLiteralDataGenerator(); OutputStream _literalOut = literalGen.open(cOut, PGPLiteralDataGenerator.BINARY, PAYLOAD_NAME, new Date(), new byte[BUFFER_SIZE]); return new ClosingWrapperOutputStream(_literalOut, cOut, outputStream); } catch (PGPException e) { throw new IOException(e); } }
From source file:org.sufficientlysecure.keychain.pgp.PgpSignEncryptOperation.java
License:Open Source License
/** * Signs and/or encrypts data based on parameters of class */// w w w . jav a2 s. co m private PgpSignEncryptResult executeInternal(PgpSignEncryptInputParcel input, CryptoInputParcel cryptoInput, InputData inputData, OutputStream outputStream) { int indent = 0; OperationLog log = new OperationLog(); log.add(LogType.MSG_PSE, indent); indent += 1; PgpSignEncryptData data = input.getData(); boolean enableSignature = data.getSignatureMasterKeyId() != Constants.key.none; boolean enableEncryption = ((data.getEncryptionMasterKeyIds() != null && data.getEncryptionMasterKeyIds().length > 0) || data.getSymmetricPassphrase() != null); boolean enableCompression = (data.getCompressionAlgorithm() != CompressionAlgorithmTags.UNCOMPRESSED); Log.d(Constants.TAG, "enableSignature:" + enableSignature + "\nenableEncryption:" + enableEncryption + "\nenableCompression:" + enableCompression + "\nenableAsciiArmorOutput:" + data.isEnableAsciiArmorOutput() + "\nisHiddenRecipients:" + data.isHiddenRecipients()); // add additional key id to encryption ids (mostly to do self-encryption) if (enableEncryption && data.getAdditionalEncryptId() != Constants.key.none) { data.setEncryptionMasterKeyIds( Arrays.copyOf(data.getEncryptionMasterKeyIds(), data.getEncryptionMasterKeyIds().length + 1)); data.getEncryptionMasterKeyIds()[data.getEncryptionMasterKeyIds().length - 1] = data .getAdditionalEncryptId(); } ArmoredOutputStream armorOut = null; OutputStream out; if (data.isEnableAsciiArmorOutput()) { armorOut = new ArmoredOutputStream(new BufferedOutputStream(outputStream, 1 << 16)); if (data.getVersionHeader() != null) { armorOut.setHeader("Version", data.getVersionHeader()); } // if we have a charset, put it in the header if (data.getCharset() != null) { armorOut.setHeader("Charset", data.getCharset()); } // add proprietary header to indicate that this is a key backup if (data.isAddBackupHeader()) { armorOut.setHeader("BackupVersion", "2"); } out = armorOut; } else { out = outputStream; } /* Get keys for signature generation for later usage */ CanonicalizedSecretKey signingKey = null; if (enableSignature) { updateProgress(R.string.progress_extracting_signature_key, 0, 100); try { long signingMasterKeyId = data.getSignatureMasterKeyId(); long signingSubKeyId = data.getSignatureSubKeyId(); CanonicalizedSecretKeyRing signingKeyRing = mProviderHelper .getCanonicalizedSecretKeyRing(signingMasterKeyId); signingKey = signingKeyRing.getSecretKey(data.getSignatureSubKeyId()); // Make sure key is not expired or revoked if (signingKeyRing.isExpired() || signingKeyRing.isRevoked() || signingKey.isExpired() || signingKey.isRevoked()) { log.add(LogType.MSG_PSE_ERROR_REVOKED_OR_EXPIRED, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } // Make sure we are allowed to sign here! if (!signingKey.canSign()) { log.add(LogType.MSG_PSE_ERROR_KEY_SIGN, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } switch (mProviderHelper.getCachedPublicKeyRing(signingMasterKeyId) .getSecretKeyType(signingSubKeyId)) { case DIVERT_TO_CARD: case PASSPHRASE_EMPTY: { if (!signingKey.unlock(new Passphrase())) { throw new AssertionError( "PASSPHRASE_EMPTY/DIVERT_TO_CARD keyphrase not unlocked with empty passphrase." + " This is a programming error!"); } break; } case PIN: case PATTERN: case PASSPHRASE: { Passphrase localPassphrase = cryptoInput.getPassphrase(); if (localPassphrase == null) { try { localPassphrase = getCachedPassphrase(signingMasterKeyId, signingKey.getKeyId()); } catch (PassphraseCacheInterface.NoSecretKeyException ignored) { } } if (localPassphrase == null) { log.add(LogType.MSG_PSE_PENDING_PASSPHRASE, indent + 1); return new PgpSignEncryptResult(log, RequiredInputParcel.createRequiredSignPassphrase(signingMasterKeyId, signingKey.getKeyId(), cryptoInput.getSignatureTime()), cryptoInput); } if (!signingKey.unlock(localPassphrase)) { log.add(LogType.MSG_PSE_ERROR_BAD_PASSPHRASE, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } break; } case GNU_DUMMY: { log.add(LogType.MSG_PSE_ERROR_UNLOCK, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } default: { throw new AssertionError("Unhandled SecretKeyType! (should not happen)"); } } } catch (ProviderHelper.NotFoundException e) { log.add(LogType.MSG_PSE_ERROR_SIGN_KEY, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } catch (PgpGeneralException e) { log.add(LogType.MSG_PSE_ERROR_UNLOCK, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } // Use requested hash algo int requestedAlgorithm = data.getSignatureHashAlgorithm(); if (requestedAlgorithm == PgpSecurityConstants.OpenKeychainHashAlgorithmTags.USE_DEFAULT) { data.setSignatureHashAlgorithm(PgpSecurityConstants.DEFAULT_HASH_ALGORITHM); } } updateProgress(R.string.progress_preparing_streams, 2, 100); /* Initialize PGPEncryptedDataGenerator for later usage */ PGPEncryptedDataGenerator cPk = null; if (enableEncryption) { // Use requested encryption algo int algo = data.getSymmetricEncryptionAlgorithm(); if (algo == PgpSecurityConstants.OpenKeychainSymmetricKeyAlgorithmTags.USE_DEFAULT) { algo = PgpSecurityConstants.DEFAULT_SYMMETRIC_ALGORITHM; } JcePGPDataEncryptorBuilder encryptorBuilder = new JcePGPDataEncryptorBuilder(algo) .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME) .setWithIntegrityPacket(data.isIntegrityProtected()); cPk = new PGPEncryptedDataGenerator(encryptorBuilder); if (data.getSymmetricPassphrase() != null) { // Symmetric encryption log.add(LogType.MSG_PSE_SYMMETRIC, indent); JcePBEKeyEncryptionMethodGenerator symmetricEncryptionGenerator = new JcePBEKeyEncryptionMethodGenerator( data.getSymmetricPassphrase().getCharArray()); cPk.addMethod(symmetricEncryptionGenerator); } else { log.add(LogType.MSG_PSE_ASYMMETRIC, indent); // Asymmetric encryption for (long id : data.getEncryptionMasterKeyIds()) { try { CanonicalizedPublicKeyRing keyRing = mProviderHelper .getCanonicalizedPublicKeyRing(KeyRings.buildUnifiedKeyRingUri(id)); Set<Long> encryptSubKeyIds = keyRing.getEncryptIds(); for (Long subKeyId : encryptSubKeyIds) { CanonicalizedPublicKey key = keyRing.getPublicKey(subKeyId); cPk.addMethod(key.getPubKeyEncryptionGenerator(data.isHiddenRecipients())); log.add(LogType.MSG_PSE_KEY_OK, indent + 1, KeyFormattingUtils.convertKeyIdToHex(subKeyId)); } if (encryptSubKeyIds.isEmpty()) { log.add(LogType.MSG_PSE_KEY_WARN, indent + 1, KeyFormattingUtils.convertKeyIdToHex(id)); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } // Make sure key is not expired or revoked if (keyRing.isExpired() || keyRing.isRevoked()) { log.add(LogType.MSG_PSE_ERROR_REVOKED_OR_EXPIRED, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } } catch (ProviderHelper.NotFoundException e) { log.add(LogType.MSG_PSE_KEY_UNKNOWN, indent + 1, KeyFormattingUtils.convertKeyIdToHex(id)); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } } } } /* Initialize signature generator object for later usage */ PGPSignatureGenerator signatureGenerator = null; if (enableSignature) { updateProgress(R.string.progress_preparing_signature, 4, 100); try { boolean cleartext = data.isCleartextSignature() && data.isEnableAsciiArmorOutput() && !enableEncryption; signatureGenerator = signingKey.getDataSignatureGenerator(data.getSignatureHashAlgorithm(), cleartext, cryptoInput.getCryptoData(), cryptoInput.getSignatureTime()); } catch (PgpGeneralException e) { log.add(LogType.MSG_PSE_ERROR_NFC, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } } ProgressScaler progressScaler = new ProgressScaler(mProgressable, 8, 95, 100); PGPCompressedDataGenerator compressGen = null; OutputStream pOut; OutputStream encryptionOut = null; BCPGOutputStream bcpgOut; ByteArrayOutputStream detachedByteOut = null; ArmoredOutputStream detachedArmorOut = null; BCPGOutputStream detachedBcpgOut = null; long opTime, startTime = System.currentTimeMillis(); try { if (enableEncryption) { /* actual encryption */ updateProgress(R.string.progress_encrypting, 8, 100); log.add(enableSignature ? LogType.MSG_PSE_SIGCRYPTING : LogType.MSG_PSE_ENCRYPTING, indent); indent += 1; encryptionOut = cPk.open(out, new byte[1 << 16]); if (enableCompression) { log.add(LogType.MSG_PSE_COMPRESSING, indent); // Use preferred compression algo int algo = data.getCompressionAlgorithm(); if (algo == PgpSecurityConstants.OpenKeychainCompressionAlgorithmTags.USE_DEFAULT) { algo = PgpSecurityConstants.DEFAULT_COMPRESSION_ALGORITHM; } compressGen = new PGPCompressedDataGenerator(algo); bcpgOut = new BCPGOutputStream(compressGen.open(encryptionOut)); } else { bcpgOut = new BCPGOutputStream(encryptionOut); } if (enableSignature) { signatureGenerator.generateOnePassVersion(false).encode(bcpgOut); } PGPLiteralDataGenerator literalGen = new PGPLiteralDataGenerator(); char literalDataFormatTag; if (data.isCleartextSignature()) { literalDataFormatTag = PGPLiteralData.UTF8; } else { literalDataFormatTag = PGPLiteralData.BINARY; } pOut = literalGen.open(bcpgOut, literalDataFormatTag, inputData.getOriginalFilename(), new Date(), new byte[1 << 16]); long alreadyWritten = 0; int length; byte[] buffer = new byte[1 << 16]; InputStream in = new BufferedInputStream(inputData.getInputStream()); while ((length = in.read(buffer)) > 0) { pOut.write(buffer, 0, length); // update signature buffer if signature is requested if (enableSignature) { signatureGenerator.update(buffer, 0, length); } alreadyWritten += length; if (inputData.getSize() > 0) { long progress = 100 * alreadyWritten / inputData.getSize(); progressScaler.setProgress((int) progress, 100); } } literalGen.close(); indent -= 1; } else if (enableSignature && data.isCleartextSignature() && data.isEnableAsciiArmorOutput()) { /* cleartext signature: sign-only of ascii text */ updateProgress(R.string.progress_signing, 8, 100); log.add(LogType.MSG_PSE_SIGNING_CLEARTEXT, indent); // write -----BEGIN PGP SIGNED MESSAGE----- armorOut.beginClearText(data.getSignatureHashAlgorithm()); InputStream in = new BufferedInputStream(inputData.getInputStream()); final BufferedReader reader = new BufferedReader(new InputStreamReader(in)); // update signature buffer with first line processLine(reader.readLine(), armorOut, signatureGenerator); // TODO: progress: fake annealing? while (true) { String line = reader.readLine(); // end cleartext signature with newline, see http://tools.ietf.org/html/rfc4880#section-7 if (line == null) { armorOut.write(NEW_LINE); break; } armorOut.write(NEW_LINE); // update signature buffer with input line signatureGenerator.update(NEW_LINE); processLine(line, armorOut, signatureGenerator); } armorOut.endClearText(); pOut = new BCPGOutputStream(armorOut); } else if (enableSignature && data.isDetachedSignature()) { /* detached signature */ updateProgress(R.string.progress_signing, 8, 100); log.add(LogType.MSG_PSE_SIGNING_DETACHED, indent); InputStream in = new BufferedInputStream(inputData.getInputStream()); // handle output stream separately for detached signatures detachedByteOut = new ByteArrayOutputStream(); OutputStream detachedOut = detachedByteOut; if (data.isEnableAsciiArmorOutput()) { detachedArmorOut = new ArmoredOutputStream(new BufferedOutputStream(detachedOut, 1 << 16)); if (data.getVersionHeader() != null) { detachedArmorOut.setHeader("Version", data.getVersionHeader()); } detachedOut = detachedArmorOut; } detachedBcpgOut = new BCPGOutputStream(detachedOut); long alreadyWritten = 0; int length; byte[] buffer = new byte[1 << 16]; while ((length = in.read(buffer)) > 0) { // no output stream is written, no changed to original data! signatureGenerator.update(buffer, 0, length); alreadyWritten += length; if (inputData.getSize() > 0) { long progress = 100 * alreadyWritten / inputData.getSize(); progressScaler.setProgress((int) progress, 100); } } pOut = null; } else if (enableSignature && !data.isCleartextSignature() && !data.isDetachedSignature()) { /* sign-only binary (files/data stream) */ updateProgress(R.string.progress_signing, 8, 100); log.add(LogType.MSG_PSE_SIGNING, indent); InputStream in = new BufferedInputStream(inputData.getInputStream()); if (enableCompression) { // Use preferred compression algo int algo = data.getCompressionAlgorithm(); if (algo == PgpSecurityConstants.OpenKeychainCompressionAlgorithmTags.USE_DEFAULT) { algo = PgpSecurityConstants.DEFAULT_COMPRESSION_ALGORITHM; } compressGen = new PGPCompressedDataGenerator(algo); bcpgOut = new BCPGOutputStream(compressGen.open(out)); } else { bcpgOut = new BCPGOutputStream(out); } signatureGenerator.generateOnePassVersion(false).encode(bcpgOut); PGPLiteralDataGenerator literalGen = new PGPLiteralDataGenerator(); pOut = literalGen.open(bcpgOut, PGPLiteralData.BINARY, inputData.getOriginalFilename(), new Date(), new byte[1 << 16]); long alreadyWritten = 0; int length; byte[] buffer = new byte[1 << 16]; while ((length = in.read(buffer)) > 0) { pOut.write(buffer, 0, length); signatureGenerator.update(buffer, 0, length); alreadyWritten += length; if (inputData.getSize() > 0) { long progress = 100 * alreadyWritten / inputData.getSize(); progressScaler.setProgress((int) progress, 100); } } literalGen.close(); } else { throw new AssertionError("cannot clearsign in non-ascii armored text, this is a bug!"); } if (enableSignature) { updateProgress(R.string.progress_generating_signature, 95, 100); try { if (detachedBcpgOut != null) { signatureGenerator.generate().encode(detachedBcpgOut); } else { signatureGenerator.generate().encode(pOut); } } catch (NfcSyncPGPContentSignerBuilder.NfcInteractionNeeded e) { // this secret key diverts to a OpenPGP card, throw exception with hash that will be signed log.add(LogType.MSG_PSE_PENDING_NFC, indent); return new PgpSignEncryptResult(log, RequiredInputParcel.createSecurityTokenSignOperation( signingKey.getRing().getMasterKeyId(), signingKey.getKeyId(), e.hashToSign, e.hashAlgo, cryptoInput.getSignatureTime()), cryptoInput); } } opTime = System.currentTimeMillis() - startTime; Log.d(Constants.TAG, "sign/encrypt time taken: " + String.format("%.2f", opTime / 1000.0) + "s"); // closing outputs // NOTE: closing needs to be done in the correct order! if (encryptionOut != null) { if (compressGen != null) { compressGen.close(); } encryptionOut.close(); } // Note: Closing ArmoredOutputStream does not close the underlying stream if (armorOut != null) { armorOut.close(); } // Note: Closing ArmoredOutputStream does not close the underlying stream if (detachedArmorOut != null) { detachedArmorOut.close(); } // Also closes detachedBcpgOut if (detachedByteOut != null) { detachedByteOut.close(); } if (out != null) { out.close(); } if (outputStream != null) { outputStream.close(); } } catch (SignatureException e) { log.add(LogType.MSG_PSE_ERROR_SIG, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } catch (PGPException e) { log.add(LogType.MSG_PSE_ERROR_PGP, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } catch (IOException e) { log.add(LogType.MSG_PSE_ERROR_IO, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); } updateProgress(R.string.progress_done, 100, 100); log.add(LogType.MSG_PSE_OK, indent); PgpSignEncryptResult result = new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_OK, log); result.mOperationTime = opTime; if (detachedByteOut != null) { try { detachedByteOut.flush(); detachedByteOut.close(); } catch (IOException e) { // silently catch } result.setDetachedSignature(detachedByteOut.toByteArray()); try { String digestName = PGPUtil.getDigestName(data.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; }