public class Test{
public static void main(String[] args) throws Exception {
String postString = "abc";
String signature = ByteToHex(genHMAC(postString, "310A54B3C9C12920E1582E016F15DD441ACE8553769E8991")).toUpperCase();
}
/**
* 使用 HMAC-SHA1 签名方法对data进行签名
*
* @param data
* 被签名的字符串
* @param key
* 密钥
* @return
加密后的字符串
*/
public static byte[] genHMAC(String data, String key) {
byte[] result = null;
try {
//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
SecretKeySpec signinKey = new SecretKeySpec(hexString2Bytes(key), "HmacSHA1");
//生成一个指定 Mac 算法 的 Mac 对象
Mac mac = Mac.getInstance("HmacSHA1");
//用给定密钥初始化 Mac 对象
mac.init(signinKey);
//完成 Mac 操作
byte[] rawHmac = mac.doFinal(data.getBytes());
result = rawHmac;
} catch (NoSuchAlgorithmException e) {
System.err.println(e.getMessage());
} catch (InvalidKeyException e) {
System.err.println(e.getMessage());
}
if (null != result) {
return result;
} else {
return null;
}
}
public static byte[] hexString2Bytes(String src) {
int l = src.length() / 2;
byte[] ret = new byte[l];
for (int i = 0; i < l; i++) {
ret[i] = (byte) Integer
.valueOf(src.substring(i * 2, i * 2 + 2), 16).byteValue();
}
return ret;
}
// btye转换hex函数
public static String ByteToHex(byte[] byteArray) {
StringBuffer StrBuff = new StringBuffer();
for (int i = 0; i < byteArray.length; i++) {
if (Integer.toHexString(0xFF & byteArray[i]).length() == 1) {
StrBuff.append("0").append(
Integer.toHexString(0xFF & byteArray[i]));
} else {
StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));
}
}
return StrBuff.toString();
}
}
public class Test{
public static void m