javax.crypto.Mac类的使用及代码示例

x33g5p2x  于2022-01-24 转载在 其他  
字(14.4k)|赞(0)|评价(0)|浏览(834)

本文整理了Java中javax.crypto.Mac类的一些代码示例，展示了Mac类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Mac类的具体详情如下：
包路径：javax.crypto.Mac
类名称：Mac

Mac介绍

[英]This class provides the public API for Message Authentication Code (MAC) algorithms.
[中]此类为消息身份验证码（MAC）算法提供公共API。

代码示例

代码示例来源：origin: prestodb/presto

  1. private ByteString hmac(String algorithm, ByteString key) {
  2.  try {
  3.   Mac mac = Mac.getInstance(algorithm);
  4.   mac.init(new SecretKeySpec(key.toByteArray(), algorithm));
  5.   return ByteString.of(mac.doFinal(data));
  6.  } catch (NoSuchAlgorithmException e) {
  7.   throw new AssertionError(e);
  8.  } catch (InvalidKeyException e) {
  9.   throw new IllegalArgumentException(e);
  10.  }
  11. }

代码示例来源：origin: knowm/XChange

  1. @Override
  2.  public String digestParams(RestInvocation restInvocation) {
  4.   MessageDigest sha256;
  5.   try {
  6.    sha256 = MessageDigest.getInstance("SHA-256");
  7.   } catch (NoSuchAlgorithmException e) {
  8.    throw new RuntimeException(
  9.      "Illegal algorithm for post body digest. Check the implementation.");
  10.   }
  11.   sha256.update(restInvocation.getParamValue(FormParam.class, "nonce").toString().getBytes());
  12.   sha256.update(restInvocation.getRequestBody().getBytes());
  14.   Mac mac512 = getMac();
  15.   mac512.update(("/" + restInvocation.getPath()).getBytes());
  16.   mac512.update(sha256.digest());
  18.   return Base64.getEncoder().encodeToString(mac512.doFinal()).trim();
  19.  }
  20. }

代码示例来源：origin: google/guava

  1. private static Mac getMac(String algorithmName, Key key) {
  2.  try {
  3.   Mac mac = Mac.getInstance(algorithmName);
  4.   mac.init(key);
  5.   return mac;
  6.  } catch (NoSuchAlgorithmException e) {
  7.   throw new IllegalStateException(e);
  8.  } catch (InvalidKeyException e) {
  9.   throw new IllegalArgumentException(e);
  10.  }
  11. }

代码示例来源：origin: apache/kafka

  1. public byte[] hmac(byte[] key, byte[] bytes) throws InvalidKeyException {
  2.   mac.init(new SecretKeySpec(key, mac.getAlgorithm()));
  3.   return mac.doFinal(bytes);
  4. }

代码示例来源：origin: com.h2database/h2

  1. private static Mac initMac(byte[] key) {
  2.   // Java forbids empty keys
  3.   if (key.length == 0) {
  4.     key = new byte[1];
  5.   }
  6.   try {
  7.     Mac mac = Mac.getInstance("HmacSHA256");
  8.     mac.init(new SecretKeySpec(key, "HmacSHA256"));
  9.     return mac;
  10.   } catch (GeneralSecurityException e) {
  11.     throw new RuntimeException(e);
  12.   }
  13. }

代码示例来源：origin: hierynomus/sshj

  1. try {
  2.   MessageDigest digest = MessageDigest.getInstance("SHA-1");
  3.   digest.update("putty-private-key-file-mac-key".getBytes());
  4.   if (passphrase != null) {
  5.     digest.update(passphrase.getBytes());
  6.   final byte[] key = digest.digest();
  7.   final Mac mac = Mac.getInstance("HmacSHA1");
  8.   mac.init(new SecretKeySpec(key, 0, 20, mac.getAlgorithm()));
  9.   data.write(privateKey);
  10.   final String encoded = Hex.toHexString(mac.doFinal(out.toByteArray()));
  11.   final String reference = headers.get("Private-MAC");
  12.   if (!encoded.equals(reference)) {

代码示例来源：origin: plutext/docx4j

  1. Cipher cipher = Cipher.getInstance("RSA");
  2. cipher.init(Cipher.DECRYPT_MODE, keyPair.getPrivate());
  3. byte keyspec[] = cipher.doFinal(ace.encryptedKey);
  4. SecretKeySpec secretKey = new SecretKeySpec(keyspec, ver.getCipherAlgorithm().jceId);
  5. x509Hmac.init(secretKey);
  6. byte certVerifier[] = x509Hmac.doFinal(ace.x509.getEncoded());

代码示例来源：origin: apache/incubator-dubbo

  1. MessageDigest md = MessageDigest.getInstance("SHA1");
  2. md.update(encoded);
  3. byte[] fingerprint = md.digest();
  4. Cipher keyCipher = Cipher.getInstance(keyAlgorithm);
  5. keyCipher.init(Cipher.WRAP_MODE, _privateKey);
  6. byte[] encKey = keyCipher.wrap(sharedKey);
  7. _out.writeBytes(encKey);
  8. _mac = Mac.getInstance(_algorithm);
  9. _mac.init(sharedKey);

代码示例来源：origin: wildfly/wildfly

  1. final Mac mac = Mac.getInstance(getMechanism().getHmacName());
  2. final MessageDigest messageDigest = MessageDigest.getInstance(getMechanism().getMessageDigestName());
  3. mac.reset();
  4. byte[] saltedPassword = initialResult.getScramDigestPassword().getDigest();
  5. mac.init(new SecretKeySpec(saltedPassword, mac.getAlgorithm()));
  6. mac.update(ScramUtil.CLIENT_KEY_BYTES);
  7. clientKey = mac.doFinal();
  8. if(trace) saslScram.tracef("[S] Client key: %s%n", ByteIterator.ofBytes(clientKey).hexEncode().drainToString());
  9. mac.reset();
  10. mac.init(new SecretKeySpec(storedKey, mac.getAlgorithm()));
  11. final byte[] clientFirstMessage = clientMessage.getInitialResponse().getRawMessageBytes();
  12. final int clientFirstMessageBareStart = clientMessage.getInitialResponse().getInitialPartIndex();
  13. mac.update(clientFirstMessage, clientFirstMessageBareStart, clientFirstMessage.length - clientFirstMessageBareStart);
  14. if(trace) saslScram.tracef("[S] Using client first message: %s%n", ByteIterator.ofBytes(copyOfRange(clientFirstMessage, clientFirstMessageBareStart, clientFirstMessage.length)).hexEncode().drainToString());
  15. mac.update((byte) ',');
  16. final byte[] serverFirstMessage = initialResult.getScramInitialChallenge().getRawMessageBytes();
  17. mac.update(serverFirstMessage);
  18. if(trace) saslScram.tracef("[S] Using server first message: %s%n", ByteIterator.ofBytes(serverFirstMessage).hexEncode().drainToString());
  19. mac.update((byte) ',');
  20. final byte[] response = clientMessage.getRawMessageBytes();
  21. final int proofOffset = clientMessage.getProofOffset();
  22. mac.update(response, 0, proofOffset); // client-final-message-without-proof
  23. if(trace) saslScram.tracef("[S] Using client final message without proof: %s%n", ByteIterator.ofBytes(copyOfRange(response, 0, proofOffset)).hexEncode().drainToString());
  24. byte[] clientSignature = mac.doFinal();
  25. if(trace) saslScram.tracef("[S] Client signature: %s%n", ByteIterator.ofBytes(clientSignature).hexEncode().drainToString());
  26. mac.reset();

代码示例来源：origin: crsmoro/scplayer

  1. MessageDigest messageDigest = MessageDigest.getInstance("SHA1");
  2. byte[] checksum = Arrays.copyOfRange(blobBytes, blobBytes.length-20, blobBytes.length); // checksum
  3. Key base = new SecretKeySpec(Arrays.copyOfRange(messageDigest.digest(clampArray(sharedKey, 96)), 0, 16), "HmacSHA1");
  4. Mac mac = Mac.getInstance("HmacSHA1");
  5. mac.init(base);
  6. Key checksumKey = new SecretKeySpec(mac.doFinal("checksum".getBytes()), "HmacSHA1");
  7. Mac checksumMac = Mac.getInstance("HmacSHA1");
  8. checksumMac.init(checksumKey);
  9. byte[] actualChecksum = checksumMac.doFinal(encrypted);
  10. assert Arrays.equals(checksum, actualChecksum);
  11. Key encryptionKey = new SecretKeySpec(Arrays.copyOfRange(mac.doFinal("encryption".getBytes()), 0, 16), "AES");
  12. Cipher cipher = Cipher.getInstance("AES/CTR/PKCS5Padding");
  13. cipher.init(Cipher.DECRYPT_MODE, encryptionKey,new IvParameterSpec(iv));
  14. byte[] decrypted = cipher.doFinal(encrypted);
  15. String decryptedBlob = new String(decrypted);

代码示例来源：origin: poreid/poreid

  1. private byte[] decipherCache(byte[] bundle) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException, InvalidAlgorithmParameterException{
  2.   Cipher cipher;
  3.   byte[] ivData;
  4.   IvParameterSpec iv;
  5.   Mac mac;
  6.   byte[] cipheredContent;
  7.   byte[] decipheredContent;
  8.         cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");       
  9.   mac = Mac.getInstance("HmacSHA1");
  10.   mac.init(new SecretKeySpec(this.keyHMAC, "HmacSHA1"));
  11.   
  12.   if (bundle.length < cipher.getBlockSize()+mac.getMacLength()){
  13.     return null; /* null - correto */ 
  14.   }
  15.   
  16.   cipheredContent = Arrays.copyOfRange(bundle, cipher.getBlockSize()+mac.getMacLength(),bundle.length);
  17.   if (!Arrays.equals(mac.doFinal(cipheredContent), Arrays.copyOfRange(bundle, cipher.getBlockSize(),cipher.getBlockSize()+mac.getMacLength()))){
  18.     return null;
  19.   }
  20.   
  21.   ivData = Arrays.copyOfRange(bundle, 0, cipher.getBlockSize());
  22.   iv = new IvParameterSpec(ivData);
  23.   cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(this.keyAES, "AES"), iv);        
  24.   decipheredContent = cipher.doFinal(cipheredContent);
  25.   
  26.   long cacheDate = ((ByteBuffer) (ByteBuffer.allocate(Long.SIZE / Byte.SIZE).put(Arrays.copyOfRange(decipheredContent, 0, 8)).flip())).getLong();
  27.   return cacheStatus.isValid(cacheDate) ? Arrays.copyOfRange(decipheredContent, 8, decipheredContent.length) : null;        
  28. }

代码示例来源：origin: stackoverflow.com

  1. SecretKeySpec keySpec = new SecretKeySpec(keyBytes, "AES");
  2. IvParameterSpec ivSpec = new IvParameterSpec(keyBytes);
  3. mac.init(keySpec);
  4. verifyMac(mac.doFinal(ciphertext), macBytes);
  5. cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
  6. byte[] results = cipher.doFinal(ciphertext);
  7. return new String(results, "UTF-8");
  8. MessageDigest sha = MessageDigest.getInstance("SHA1");
  9. byte[] mac1_hash = sha.digest(mac1);
  10. sha.reset();
  11. byte[] mac2_hash = sha.digest(mac2);

代码示例来源：origin: wildfly/wildfly

  1. final Mac mac = Mac.getInstance(getMechanism().getHmacName());
  2. final MessageDigest messageDigest = MessageDigest.getInstance(getMechanism().getMessageDigestName());
  3. mac.init(new SecretKeySpec(saltedPassword, mac.getAlgorithm()));
  4. final byte[] clientKey = mac.doFinal(ScramUtil.CLIENT_KEY_BYTES);
  5. if(trace) saslScram.tracef("[C] Client key: %s", ByteIterator.ofBytes(clientKey).hexEncode().drainToString());
  6. final byte[] storedKey = messageDigest.digest(clientKey);
  7. if(trace) saslScram.tracef("[C] Stored key: %s%n", ByteIterator.ofBytes(storedKey).hexEncode().drainToString());
  8. mac.init(new SecretKeySpec(storedKey, mac.getAlgorithm()));
  9. final byte[] initialResponseBytes = initialResponse.getRawMessageBytes();
  10. mac.update(initialResponseBytes, initialResponse.getInitialPartIndex(), initialResponseBytes.length - initialResponse.getInitialPartIndex());
  11. if (trace) saslScram.tracef("[C] Using client first message: %s%n", ByteIterator.ofBytes(initialResponseBytes, initialResponse.getInitialPartIndex(), initialResponseBytes.length - initialResponse.getInitialPartIndex()).hexEncode().drainToString());
  12. mac.update((byte) ',');
  13. mac.update(initialChallenge.getRawMessageBytes());
  14. if(trace) saslScram.tracef("[C] Using server first message: %s%n", ByteIterator.ofBytes(initialChallenge.getRawMessageBytes()).hexEncode().drainToString());
  15. mac.update((byte) ',');
  16. encoded.updateMac(mac);
  17. if(trace) saslScram.tracef("[C] Using client final message without proof: %s%n", ByteIterator.ofBytes(encoded.toArray()).hexEncode().drainToString());
  18. final byte[] clientProof = mac.doFinal();
  19. if(trace) saslScram.tracef("[C] Client signature: %s%n", ByteIterator.ofBytes(clientProof).hexEncode().drainToString());
  20. ScramUtil.xor(clientProof, clientKey);

代码示例来源：origin: knowm/XChange

  1. @Override
  2.  public String digestParams(RestInvocation restInvocation) {
  3.   try {
  4.    String urlMethod = restInvocation.getInvocationUrl();
  5.    String nonce = String.valueOf(nonceFactory.createValue());
  7.    String body = restInvocation.getRequestBody();
  8.    String md5 =
  9.      Base64.getEncoder()
  10.        .encodeToString(MessageDigest.getInstance("MD5").digest(body.getBytes("UTF-8")));
  12.    String reqSignature =
  13.      apiKey
  14.        + "POST"
  15.        + URLEncoder.encode(urlMethod, StandardCharsets.UTF_8.toString()).toLowerCase()
  16.        + nonce
  17.        + md5;
  19.    return "amx "
  20.      + apiKey
  21.      + ":"
  22.      + Base64.getEncoder().encodeToString(getMac().doFinal(reqSignature.getBytes("UTF-8")))
  23.      + ":"
  24.      + nonce;
  25.   } catch (Exception e) {
  26.    throw new IllegalStateException("Faile to sign request", e);
  27.   }
  28.  }
  29. }

代码示例来源：origin: stackoverflow.com

  1. String message = "[1312701386,transactioncreate,[account_code:ABC,amount_in_cents:5000,currency:USD]]";
  2. String privateKey = "0123456789ABCDEF0123456789ABCDEF";
  4. MessageDigest md = MessageDigest.getInstance("SHA-1");
  5. byte[] keyBytes = md.digest(privateKey.getBytes("UTF-8"));
  7. SecretKey sk = new SecretKeySpec(keyBytes, "HmacSHA1");
  8. Mac mac = Mac.getInstance("HmacSHA1");
  9. mac.init(sk);
  10. byte[] result = mac.doFinal(message.getBytes("ASCII"));
  12. System.out.println("  Message: " + message);
  13. System.out.println("      Key: " + privateKey + "\n");
  14. System.out.println("Key Bytes: " + toHex(keyBytes));
  15. System.out.println("  Results: " + toHex(result));

代码示例来源：origin: RNCryptor/JNCryptor

  1. @Override
  2. public byte[] encryptData(byte[] plaintext, SecretKey encryptionKey,
  3.   SecretKey hmacKey) throws CryptorException {
  4.  Validate.notNull(plaintext, "Plaintext cannot be null.");
  5.  Validate.notNull(encryptionKey, "Encryption key cannot be null.");
  6.  Validate.notNull(hmacKey, "HMAC key cannot be null.");
  7.  byte[] iv = getSecureRandomData(AES_BLOCK_SIZE);
  8.  try {
  9.   Cipher cipher = Cipher.getInstance(AES_CIPHER_ALGORITHM);
  10.   cipher.init(Cipher.ENCRYPT_MODE, encryptionKey, new IvParameterSpec(iv));
  11.   byte[] ciphertext = cipher.doFinal(plaintext);
  12.   AES256v3Ciphertext output = new AES256v3Ciphertext(iv, ciphertext);
  13.   Mac mac = Mac.getInstance(HMAC_ALGORITHM);
  14.   mac.init(hmacKey);
  15.   byte[] hmac = mac.doFinal(output.getDataToHMAC());
  16.   output.setHmac(hmac);
  17.   return output.getRawData();
  18.  } catch (GeneralSecurityException e) {
  19.   throw new CryptorException("Failed to generate ciphertext.", e);
  20.  }
  21. }

代码示例来源：origin: aws/aws-sdk-java

  1. throw new IllegalArgumentException("Max buffer size should not be less than chunk size");
  2. try {
  3.   this.sha256 = MessageDigest.getInstance("SHA-256");
  4.   final String signingAlgo = SigningAlgorithm.HmacSHA256.toString();
  5.   this.hmacSha256 = Mac.getInstance(signingAlgo);
  6.   hmacSha256.init(new SecretKeySpec(kSigning, signingAlgo));
  7. } catch (NoSuchAlgorithmException e) {
  8.   throw new IllegalStateException(e);

代码示例来源：origin: com.google.crypto.tink/tink

  1. /**
  2.  * Encrypts the next plaintext segment. This uses encryptedSegments as the segment number for
  3.  * the encryption.
  4.  */
  5. @Override
  6. public synchronized void encryptSegment(
  7.   ByteBuffer plaintext, boolean isLastSegment, ByteBuffer ciphertext)
  8.   throws GeneralSecurityException {
  9.  int position = ciphertext.position();
  10.  byte[] nonce = nonceForSegment(noncePrefix, encryptedSegments, isLastSegment);
  11.  cipher.init(Cipher.ENCRYPT_MODE, keySpec, new IvParameterSpec(nonce));
  12.  encryptedSegments++;
  13.  cipher.doFinal(plaintext, ciphertext);
  14.  ByteBuffer ctCopy = ciphertext.duplicate();
  15.  ctCopy.flip();
  16.  ctCopy.position(position);
  17.  mac.init(hmacKeySpec);
  18.  mac.update(nonce);
  19.  mac.update(ctCopy);
  20.  byte[] tag = mac.doFinal();
  21.  ciphertext.put(tag, 0, tagSizeInBytes);
  22. }

代码示例来源：origin: signalapp/Signal-Server

  1. private byte[] getCiphertext(byte[] plaintext, SecretKeySpec cipherKey, SecretKeySpec macKey)
  2.   throws CryptoEncodingException
  3. {
  4.  try {
  5.   Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
  6.   cipher.init(Cipher.ENCRYPT_MODE, cipherKey);
  7.   Mac hmac = Mac.getInstance("HmacSHA256");
  8.   hmac.init(macKey);
  9.   hmac.update(VERSION);
  10.   byte[] ivBytes = cipher.getIV();
  11.   hmac.update(ivBytes);
  12.   byte[] ciphertext   = cipher.doFinal(plaintext);
  13.   byte[] mac          = hmac.doFinal(ciphertext);
  14.   byte[] truncatedMac = new byte[MAC_SIZE];
  15.   System.arraycopy(mac, 0, truncatedMac, 0, truncatedMac.length);
  16.   return Util.combine(VERSION, ivBytes, ciphertext, truncatedMac);
  17.  } catch (NoSuchAlgorithmException | NoSuchPaddingException | IllegalBlockSizeException | BadPaddingException e) {
  18.   throw new AssertionError(e);
  19.  } catch (InvalidKeyException e) {
  20.   logger.warn("Invalid Key", e);
  21.   throw new CryptoEncodingException("Invalid key!");
  22.  }
  23. }

代码示例来源：origin: prestodb/presto

  1. /**
  2.   * Returns the hash of the bytes supplied thus far and resets the internal state of this source.
  3.   *
  4.   * <p><strong>Warning:</strong> This method is not idempotent. Each time this method is called its
  5.   * internal state is cleared. This starts a new hash with zero bytes supplied.
  6.   */
  7.  public ByteString hash() {
  8.   byte[] result = messageDigest != null ? messageDigest.digest() : mac.doFinal();
  9.   return ByteString.of(result);
  10.  }
  11. }

内容来源于网络，如有侵权，请联系作者删除！

Mac

相关文章

    查看更多

    热门标签

    更多
    JavaquerypythonNode开发语言requestUtil数据库Table后端算法LoggerMessageElementParser

    最新文章

    更多
    • 蜀ICP备13028337号-1 大数据知识库 https://www.saoniuhuo.com © All rights reserved
    • 本站内容来源互联网,如果侵犯您的权益请联系我们删除, 联系方式：448109455@qq.com