Пример #1
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  /** 对文件进行散列, 支持md5与sha1算法. */
  private static String digest(InputStream input, String algorithm) throws IOException {
    try {
      MessageDigest messageDigest = MessageDigest.getInstance(algorithm);
      int bufferLength = 1024;
      byte[] buffer = new byte[bufferLength];
      int read = input.read(buffer, 0, bufferLength);

      while (read > -1) {
        messageDigest.update(buffer, 0, read);
        read = input.read(buffer, 0, bufferLength);
      }

      return EncodeUtil.hexEncode(messageDigest.digest());

    } catch (GeneralSecurityException e) {
      throw new IllegalStateException("Security exception", e);
    }
  }
Пример #2
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 /** 对输入字符串进行sha1散列, 返回Base64编码的URL安全的结果. */
 public static String sha1ToBase64UrlSafe(String input) {
   byte[] digestResult = digest(input, SHA1);
   return EncodeUtil.base64UrlSafeEncode(digestResult);
 }
Пример #3
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 /** 对输入字符串进行sha1散列, 返回Hex编码的结果. */
 public static String sha1ToHex(String input) {
   byte[] digestResult = digest(input, SHA1);
   return EncodeUtil.hexEncode(digestResult);
 }