一、環境配置

在之前的node.js庫配置中，我們已經配置好了node和npm，再次檢查配置情況

node -v
npm -v

npm install --save miniprogram-sm-crypto

二、進入工作目錄/usr/local/bin/node_modules/sm-crypto

vim sm2.js

const sm2 = require("miniprogram-sm-crypto").sm2;

let keypair = sm2.generateKeyPairHex();

publicKey = keypair.publicKey; // 公鑰
privateKey = keypair.privateKey; // 私鑰
const msgString = "20201307lcy"
const cipherMode = 1; // 1 - C1C3C2，0 - C1C2C3，預設為1

const encryptData = sm2.doEncrypt(msgString, publicKey, cipherMode); // 加密結果
console.log("original data:");
console.log(msgString);
console.log("encrypted data:");
console.log(encryptData);
const decryptData = sm2.doDecrypt(encryptData, privateKey, cipherMode); // 解密結果
console.log("decrypted data:");
console.log(decryptData);
 

三、程式碼驗證

1 sm2加解密

const sm2 = require("miniprogram-sm-crypto").sm2;

let keypair = sm2.generateKeyPairHex();

publicKey = keypair.publicKey; // 公鑰
privateKey = keypair.privateKey; // 私鑰
const msgString = "20201307lcy"
const cipherMode = 1; // 1 - C1C3C2，0 - C1C2C3，預設為1

const encryptData = sm2.doEncrypt(msgString, publicKey, cipherMode); // 加密結果
console.log("original data:");
console.log(msgString);
console.log("encrypted data:");
console.log(encryptData);
const decryptData = sm2.doDecrypt(encryptData, privateKey, cipherMode); // 解密結果
console.log("decrypted data:");
console.log(decryptData);
 

2 sm2簽名驗籤

• 1 純簽名

const sm2 = require("miniprogram-sm-crypto").sm2;

let keypair = sm2.generateKeyPairHex();
const msg = "20201307lcy"
publicKey = keypair.publicKey; // 公鑰
privateKey = keypair.privateKey; // 私鑰
// 純簽名
let sigValueHex = sm2.doSignature(msg, privateKey); // 簽名
console.log(sigValueHex);

let verifyResult = sm2.doVerifySignature(msg, sigValueHex, publicKey); // 驗簽結果
console.log(verifyResult);
 

• 2 純簽名 + 生成橢圓曲線點

const sm2 = require("miniprogram-sm-crypto").sm2;

let keypair = sm2.generateKeyPairHex();
const msg = "20201307lcy"
publicKey = keypair.publicKey; // 公鑰
privateKey = keypair.privateKey; // 私鑰


// 純簽名 + 生成橢圓曲線點
let sigValueHex2 = sm2.doSignature(msg, privateKey, {
    pointPool: [sm2.getPoint(), sm2.getPoint(), sm2.getPoint(), sm2.getPoint()], // 傳入事先已生成好的橢圓曲線點，可加快簽名速度
}); // 簽名

console.log(sigValueHex2);

let verifyResult2 = sm2.doVerifySignature(msg, sigValueHex2, publicKey); // 驗簽結果

console.log(verifyResult2);

• 3 純簽名 + 生成橢圓曲線點 + der編解碼

const sm2 = require("miniprogram-sm-crypto").sm2;

let keypair = sm2.generateKeyPairHex();
const msg = "20201307lcy"
publicKey = keypair.publicKey; // 公鑰
privateKey = keypair.privateKey; // 私鑰

// 純簽名 + 生成橢圓曲線點 + der編解碼
let sigValueHex3 = sm2.doSignature(msg, privateKey, {
    der: true,
}); // 簽名
console.log(sigValueHex3);

let verifyResult3 = sm2.doVerifySignature(msg, sigValueHex3, publicKey, {
    der: true,
}); // 驗簽結果
console.log(verifyResult3);

• 4 純簽名 + 生成橢圓曲線點 + sm3雜湊

const sm2 = require("miniprogram-sm-crypto").sm2;

let keypair = sm2.generateKeyPairHex();
const msg = "20201307lcy"
publicKey = keypair.publicKey; // 公鑰
privateKey = keypair.privateKey; // 私鑰

// 純簽名 + 生成橢圓曲線點 + sm3雜湊
let sigValueHex4 = sm2.doSignature(msg, privateKey, {
    hash: true,
}); // 簽名
console.log(sigValueHex4);
let verifyResult4 = sm2.doVerifySignature(msg, sigValueHex4, publicKey, {
    hash: true,
}); // 驗簽結果
console.log(verifyResult4);

3 sm3加密解密

const sm3 = require("miniprogram-sm-crypto").sm3;
const msg = "20201307lcy"
console.log(msg);
let hashData = sm3(msg); // 雜湊
console.log(hashData);

4 sm4 演算法實現

const sm4 = require("miniprogram-sm-crypto").sm4;
const msg = '20201307lcy' // 可以為 utf8 串或位元組陣列
const key = '0123456789abcdeffedcba9876543210' // 可以為 16 進位制串或位元組陣列，要求為 128 位元

let encryptData = sm4.encrypt(msg, key) // 加密，預設輸出 16 進位制字串，預設使用 pkcs#7 填充（傳 pkcs#5 也會走 pkcs#7 >填充）

console.log(encryptData);

let decryptData = sm4.decrypt(encryptData, key);
console.log(decryptData);