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java生成HMACSHA256的方法

上善若水山西太原 2022-07-12 阅读 109


data要加密的数据,key密钥

public static String HMACSHA256(String data, String key) throws Exception {

Mac sha256_HMAC = Mac.getInstance("HmacSHA256");

SecretKeySpec secret_key = new SecretKeySpec(key.getBytes("UTF-8"), "HmacSHA256");

sha256_HMAC.init(secret_key);

byte[] array = sha256_HMAC.doFinal(data.getBytes("UTF-8"));

StringBuilder sb = new StringBuilder();

for (byte item : array) {

sb.append(Integer.toHexString((item & 0xFF) | 0x100).substring(1, 3));

}

return sb.toString().toUpperCase();

}

 

 

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