javax.crypto.Mac.doFinal()方法的使用及代码示例

x33g5p2x  于2022-01-24 转载在 其他  
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本文整理了Java中javax.crypto.Mac.doFinal()方法的一些代码示例，展示了Mac.doFinal()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.doFinal()方法的具体详情如下：
包路径：javax.crypto.Mac
类名称：Mac
方法名：doFinal

Mac.doFinal介绍

[英]Computes the digest of this MAC based on the data previously specified in #update calls.

This Mac instance is reverted to its initial state and can be used to start the next MAC computation with the same parameters or initialized with different parameters.
[中]根据之前在#更新调用中指定的数据计算此MAC的摘要。
此Mac实例还原为其初始状态，可用于使用相同参数启动下一个Mac计算，或使用不同参数初始化。

代码示例

代码示例来源：origin: commons-codec/commons-codec

/**
 * Returns the digest for the input data.
 *
 * @param valueToDigest the input to use
 * @return the digest as a byte[]
 * @since 1.11
 */
public byte[] hmac(final ByteBuffer valueToDigest) {
  mac.update(valueToDigest);
  return mac.doFinal();
}

代码示例来源：origin: apache/kafka

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

代码示例来源：origin: rapidoid/rapidoid

public static byte[] hmac(byte[] data, byte[] secret, byte[] salt) throws Exception {
  Mac m = Mac.getInstance(HMAC_SHA_256);
  m.init(new SecretKeySpec(secret, HMAC_SHA_256));
  return m.doFinal(data);
}

代码示例来源：origin: google/guava

public void testEmptyInputs() throws Exception {
 String knownOutput = "8cbf764cbe2e4623d99a41354adfd390";
 Mac mac = Mac.getInstance("HmacMD5");
 mac.init(MD5_KEY);
 assertEquals(knownOutput, HashCode.fromBytes(mac.doFinal()).toString());
 assertEquals(knownOutput, Hashing.hmacMd5(MD5_KEY).newHasher().hash().toString());
}

代码示例来源：origin: resteasy/Resteasy

public static byte[] sign(byte[] data, Algorithm algorithm, SecretKey key)
{
 try
 {
   Mac mac = HMACProvider.getMAC(algorithm);
   mac.init(key);
   mac.update(data);
   return mac.doFinal();
 }
 catch (Exception e)
 {
   throw new RuntimeException(e);
 }
}
public static boolean verify(JWSInput input, SecretKey key)

代码示例来源：origin: alibaba/canal

/**
 * 使用 HMAC-SHA1 签名方法对对encryptText进行签名
 *
 * @param encryptText 被签名的字符串
 * @param encryptKey 密钥
 * @return
 * @throws Exception
 */
private byte[] HmacSHA1Encrypt(String encryptText, String encryptKey) throws Exception {
  byte[] data = encryptKey.getBytes(ENCODING);
  // 根据给定的字节数组构造一个密钥,第二参数指定一个密钥算法的名称
  SecretKey secretKey = new SecretKeySpec(data, MAC_NAME);
  // 生成一个指定 Mac 算法 的 Mac 对象
  Mac mac = Mac.getInstance(MAC_NAME);
  // 用给定密钥初始化 Mac 对象
  mac.init(secretKey);
  byte[] text = encryptText.getBytes(ENCODING);
  // 完成 Mac 操作
  return mac.doFinal(text);
}

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

private byte[] getHmac(byte[] key, byte[] input, Mac mac) {
 try {
  mac.init(new SecretKeySpec(key, "HmacSHA256"));
  return mac.doFinal(input);
 } catch (InvalidKeyException e) {
  throw new AssertionError(e);
 }
}

代码示例来源：origin: knowm/XChange

@Override
 public String digestParams(RestInvocation restInvocation) {

  Mac hmac512 = getMac();

  // <method>:<PIN>:<tonce>
  String message = this.method + ":" + this.pin + ":" + this.tonce;

  hmac512.update(message.getBytes());

  return String.format("%0128x", new BigInteger(1, hmac512.doFinal())).toLowerCase();
 }
}

代码示例来源：origin: google/guava

public void testEmptyInputs_mixedAlgorithms() throws Exception {
 String knownOutput = "8cbf764cbe2e4623d99a41354adfd390";
 Mac mac = Mac.getInstance("HmacMD5");
 mac.init(SHA1_KEY);
 assertEquals(knownOutput, HashCode.fromBytes(mac.doFinal()).toString());
 assertEquals(knownOutput, Hashing.hmacMd5(SHA1_KEY).newHasher().hash().toString());
}

代码示例来源：origin: prestodb/presto

private ByteString hmac(String algorithm, ByteString key) {
 try {
  Mac mac = Mac.getInstance(algorithm);
  mac.init(new SecretKeySpec(key.toByteArray(), algorithm));
  return ByteString.of(mac.doFinal(data));
 } catch (NoSuchAlgorithmException e) {
  throw new AssertionError(e);
 } catch (InvalidKeyException e) {
  throw new IllegalArgumentException(e);
 }
}

代码示例来源：origin: stackoverflow.com

public static String encode(String key, String data) throws Exception {
 Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
 SecretKeySpec secret_key = new SecretKeySpec(key.getBytes("UTF-8"), "HmacSHA256");
 sha256_HMAC.init(secret_key);

 return Hex.encodeHexString(sha256_HMAC.doFinal(data.getBytes("UTF-8")));
}

public static void main(String [] args) throws Exception {
 System.out.println(encode("key", "The quick brown fox jumps over the lazy dog"));
}

代码示例来源：origin: knowm/XChange

String digest(String httpMethod, String invocationUrl, String reqContentType, String now) {
  Mac mac256 = getMac();
  mac256.update(httpMethod.toLowerCase().getBytes());
  mac256.update(invocationUrl.toLowerCase().getBytes());
  if (!"GET".equals(httpMethod)) {
   mac256.update(reqContentType.toLowerCase().getBytes());
  }
  mac256.update(now.toLowerCase().getBytes());
  return Base64.getEncoder().encodeToString(mac256.doFinal());
 }
}

代码示例来源：origin: spring-cloud/spring-cloud-config

private static byte[] hmacSha256(String data, byte[] key) throws Exception {
  String algorithm = HMAC_SHA256;
  Mac mac = Mac.getInstance(algorithm);
  mac.init(new SecretKeySpec(key, algorithm));
  return mac.doFinal(data.getBytes(UTF8));
}

代码示例来源：origin: stackoverflow.com

SecretKeySpec keySpec = new SecretKeySpec(
    "qnscAdgRlkIhAUPY44oiexBKtQbGY0orf7OV1I50".getBytes(),
    "HmacSHA1");

Mac mac = Mac.getInstance("HmacSHA1");
mac.init(keySpec);
byte[] result = mac.doFinal("foo".getBytes());

BASE64Encoder encoder = new BASE64Encoder();
System.out.println(encoder.encode(result));

代码示例来源：origin: knowm/XChange

@Override
 public String digestParams(RestInvocation restInvocation) {

  Mac mac256 = getMac();
  mac256.update(restInvocation.getParamValue(FormParam.class, "nonce").toString().getBytes());
  mac256.update(clientId.getBytes());
  mac256.update(publicApiKey.getBytes());

  return String.format("%064x", new BigInteger(1, mac256.doFinal())).toUpperCase();
 }
}

代码示例来源：origin: hs-web/hsweb-framework

/**
 * This method uses the JCE to provide the crypto algorithm.
 * HMAC computes a Hashed Message Authentication Code with the
 * crypto hash algorithm as a parameter.
 *
 * @param crypto:   the crypto algorithm (HmacSHA1, HmacSHA256,
 *                  HmacSHA512)
 * @param keyBytes: the bytes to use for the HMAC key
 * @param text:     the message or text to be authenticated
 */
private static byte[] hmac_sha(String crypto, byte[] keyBytes,
                byte[] text) {
  try {
    Mac hmac;
    hmac = Mac.getInstance(crypto);
    SecretKeySpec macKey =
        new SecretKeySpec(keyBytes, "RAW");
    hmac.init(macKey);
    return hmac.doFinal(text);
  } catch (GeneralSecurityException gse) {
    throw new UndeclaredThrowableException(gse);
  }
}

代码示例来源：origin: aws/aws-sdk-java

protected byte[] sign(byte[] data, byte[] key,
    SigningAlgorithm algorithm) throws SdkClientException {
  try {
    Mac mac = algorithm.getMac();
    mac.init(new SecretKeySpec(key, algorithm.toString()));
    return mac.doFinal(data);
  } catch (Exception e) {
    throw new SdkClientException(
        "Unable to calculate a request signature: "
            + e.getMessage(), e);
  }
}

代码示例来源：origin: knowm/XChange

@Override
 public String digestParams(RestInvocation restInvocation) {
  Mac mac256 = getMac();
  mac256.update(restInvocation.getParamValue(FormParam.class, "nonce").toString().getBytes());
  mac256.update(clientId.getBytes());
  mac256.update(apiKey.getBytes());

  return String.format("%064x", new BigInteger(1, mac256.doFinal())).toUpperCase();
 }
}

代码示例来源：origin: mpusher/mpush

public static String hmacSha1(String data, String encryptKey) {
  final String HMAC_SHA1 = "HmacSHA1";
  SecretKeySpec signingKey = new SecretKeySpec(encryptKey.getBytes(Constants.UTF_8), HMAC_SHA1);
  try {
    Mac mac = Mac.getInstance(HMAC_SHA1);
    mac.init(signingKey);
    mac.update(data.getBytes(Constants.UTF_8));
    return toHex(mac.doFinal());
  } catch (Exception e) {
    return Strings.EMPTY;
  }
}

代码示例来源：origin: wildfly/wildfly

public static byte[] computeHMAC(byte[] kc, int sequenceNumber, Mac mac, byte[] message, int offset, int len) throws SaslException {
  SecretKeySpec ks = new SecretKeySpec(kc, HMAC_algorithm);
  try {
    mac.init(ks);
  } catch (InvalidKeyException e) {
    throw saslDigest.mechInvalidKeyForDigestHMAC().toSaslException();
  }
  byte[] buffer = new byte[len + 4];
  integerByteOrdered(sequenceNumber, buffer, 0, 4);
  System.arraycopy(message, offset, buffer, 4, len);
  byte[] macBuffer = new byte[10];
  System.arraycopy(mac.doFinal(buffer), 0, macBuffer, 0, 10);
  return macBuffer;
}

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