Signature Description

Carry timestamp and sign in the request.

All requests must carry appid, timestamp and sign.

  • Please use the appid assigned to you by AlchemyPay.
  • The timestamp uses the current time (UTC+8). The difference between the requested timestamp and the current time cannot exceed 5 minutes, otherwise the request will not be accepted.
  • Sign is a signature, used to verify your identity. The following is an example of generating a timestamp and signature
public class MerSignCheckUtil { private static final char[] HEX_DIGITS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; public static String getMerSign(String appId, String appSecret, String timestamp) { return encode("sha1", appId + appSecret + timestamp); } private static String encode(String algorithm, String value) { if (value == null) { return null; } try { MessageDigest messageDigest = MessageDigest.getInstance(algorithm); messageDigest.update(value.getBytes()); return getFormattedText(messageDigest.digest()); } catch (Exception e) { throw new RuntimeException(e); } } private static String getFormattedText(byte[] bytes) { int len = bytes.length; StringBuilder buf = new StringBuilder(len * 2); for (int j = 0; j < len; j++) { buf.append(HEX_DIGITS[(bytes[j] >> 4) & 0x0f]); buf.append(HEX_DIGITS[bytes[j] & 0x0f]); } return buf.toString(); } } // Generate timestamp and sign public static void main(String[] args) { String timestamp = String.valueOf(System.currentTimeMillis()); System.out.println("timestamp = "+ timestamp); System.out.println("\n"); System.out.println(MerSignCheckUtil.getMerSign("f83Is2**********", "4Yn*************", timestamp)); }}
#Python 3.7.4 import hashlib from time import time def getMerSign(appId, appSecret, timestamp): strr = appId + appSecret + str(timestamp) encoded_str = strr.encode() hash_obj = hashlib.sha1(encoded_str) hexa_value = hash_obj.hexdigest() return hexa_value timestamp = int(time() * 1000) print("timestamp = ", timestamp) print("\n") res = getMerSign("f83Is2**********", "4Yn*************", timestamp) print(res)
//PHP 8.0.7 <?php function getMerSign($appId, $appSecret, $timestamp){ $str = $appId.$appSecret.strval($timestamp); return sha1($str); } $timestamp = floor(microtime(true) * 1000); printf("timestamp = %d\n", $timestamp); $res = getMerSign("f83Is2**********", "4Yn*************", $timestamp); print($res); ?>
//node v14.15.1 const sha1 = require('js-sha1'); function getMerSign(appId, appSecret, timestamp) { return sha1(appId + appSecret + String(timestamp)); }
//go version go1.18.2 package main import ( "crypto/sha1" "encoding/hex" "strconv" ) func getMerSign(appId string, appSecret string, timestamp int64) string { s := appId + appSecret + strconv.FormatInt(timestamp, 10) h := sha1.New() h.Write([]byte(s)) //io.WriteString(h, s) return hex.EncodeToString(h.Sum(nil)) }

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