Java版范例代码
/**
* HMAC-SHA1加密方案<br>
* @param content-待加密内容
* @param secretKey-密钥
* @return HMAC_SHA1加密后的字符串
*/
publicstatic String HMACSHA1(String content, String secretKey) {
try {
byte[] secretKeyBytes = secretKey.getBytes();
SecretKey secretKeyObj = new SecretKeySpec(secretKeyBytes, "HmacSHA1");
Mac mac = Mac.getInstance("HmacSHA1");
mac.init(secretKeyObj);
byte[] text = content.getBytes("UTF-8");
byte[] encryptContentBytes = mac.doFinal(text);
//SHA1算法得到的签名长度,都是160位二进制码,换算成十六进制编码字符串表示
String encryptContent = bytesToHexString(encryptContentBytes);
return encryptContent;
} catch (Exception e) {
e.printStackTrace();
}
return content;
}
/**
* 获取字节数组的16进制字符串表示形式<br>
* 范例:0xff->'ff'
* @param bytes 字节数组
* @return string-16进制的字符串表示形式
*/
privatestatic String bytesToHexString(byte[] bytes) {
StringBuilder hexString = new StringBuilder("");
for(byte ib : bytes) {
char[] Digit = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
char[] ob = newchar[2];
ob[0] = Digit[(ib >>> 4) & 0X0f];
ob[1] = Digit[ib & 0X0F];
hexString.append(ob);
}
return hexString.toString();
}