JAVA Delphi HMAC_SHA256位实现及SHA256哈希散列BASE64签名Key互通生成算法

Delphi代码： 

uses
  IdGlobal, IdHashSHA, IdHMACSHA1, IdSSLOpenSSL

//Add by wh 2021-03-19
function HMACSHA256(const sValue, sKey: String): String;
var
  hmac: TIdHMACSHA256;
  hash: TIdBytes;
begin
  LoadOpenSSLLibrary;
  if not TIdHashSHA256.IsAvailable then
    raise Exception.Create('SHA256 hashing is not available!');
  hmac := TIdHMACSHA256.Create;
  try
    hmac.Key := IndyTextEncoding_UTF8.GetBytes(sKey);
    hash := hmac.HashValue(IndyTextEncoding_UTF8.GetBytes(sValue));
    Result := LowerCase(ToHex(hash));
  finally
    hmac.Free;
  end;
end;

//Add by wh 2021-03-19 23:55:18
function HMACSHA256_BASE64(const sValue, sKey: string): string;

  function IdBytesToAnsiString(ParamBytes: TIdBytes): AnsiString;
  var
    i: Integer;
    S: AnsiString;
  begin
    S := '';
    for i := 0 to Length(ParamBytes) - 1 do
    begin
      S := S + AnsiChar(ParamBytes[i]);
    end;
    Result := S;
  end;

var
  hmac: TIdHMACSHA256;
  hash: TIdBytes;
begin
  LoadOpenSSLLibrary;
  if not TIdHashSHA256.IsAvailable then
    raise Exception.Create('SHA256 hashing is not available!');
  hmac := TIdHMACSHA256.Create;
  try
    hmac.Key := IndyTextEncoding_UTF8.GetBytes(sKey);
    hash := hmac.HashValue(IndyTextEncoding_UTF8.GetBytes(sValue));
    Result := EncodeString(IdBytesToAnsiString(hash));
  finally
    hmac.Free;
  end;
end;

JAVA代码：

    public static void main(String[] args) throws Exception {
        String s1=BASE64_HMACSHA256("123","21+20t4jm4DlkMv3nA5OSf76GrH+ifEORkO3T2yztec=");
        System.out.println(s1);
        }


    public static String BASE64_HMACSHA256(String data, String key) throws Exception {
        Mac mac = Mac.getInstance("HmacSHA256");
        mac.init(new SecretKeySpec(key.getBytes("UTF-8"), "HmacSHA256"));
        byte[] signData = mac.doFinal(data.getBytes("UTF-8"));
        StringBuilder sb = new StringBuilder();
        for (byte item : signData) {
            sb.append(Integer.toHexString((item & 0xFF) | 0x100).substring(1, 3));
        }
        System.out.println(sb.toString());
        java.util.Base64.Encoder encoder = java.util.Base64.getEncoder();
       // System.out.println(encoder.encodeToString(signData));
        return encoder.encodeToString(signData);
    }

JAVA中计算结果：

在线计算结果：

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