README
sm-crypto
国密算法sm2、sm3和sm4的js版。
安装
npm install --save sm-crypto
sm2
获取密钥对
const sm2 = require('sm-crypto').sm2;
let keypair = sm2.generateKeyPairHex();
publicKey = keypair.publicKey; // 公钥
privateKey = keypair.privateKey; // 私钥
加密解密
const sm2 = require('sm-crypto').sm2;
const cipherMode = 1; // 1 - C1C3C2,0 - C1C2C3,默认为1
let encryptData = sm2.doEncrypt(msgString, publicKey, cipherMode); // 加密结果
let decryptData = sm2.doDecrypt(encryptData, privateKey, cipherMode); // 解密结果
签名验签
ps:理论上来说,只做纯签名是最快的。
const sm2 = require('sm-crypto').sm2;
// 纯签名 + 生成椭圆曲线点
let sigValueHex = sm2.doSignature(msg, privateKey); // 签名
let verifyResult = sm2.doVerifySignature(msg, sigValueHex, publicKey); // 验签结果
// 纯签名
let sigValueHex2 = sm2.doSignature(msg, privateKey, {
pointPool: [sm2.getPoint(), sm2.getPoint(), sm2.getPoint(), sm2.getPoint()], // 传入事先已生成好的椭圆曲线点,可加快签名速度
}); // 签名
let verifyResult2 = sm2.doVerifySignature(msg, sigValueHex2, publicKey); // 验签结果
// 纯签名 + 生成椭圆曲线点 + der编解码
let sigValueHex3 = sm2.doSignature(msg, privateKey, {
der: true,
}); // 签名
let verifyResult3 = sm2.doVerifySignature(msg, sigValueHex3, publicKey, {
der: true,
}); // 验签结果
// 纯签名 + 生成椭圆曲线点 + sm3杂凑
let sigValueHex4 = sm2.doSignature(msg, privateKey, {
hash: true,
}); // 签名
let verifyResult4 = sm2.doVerifySignature(msg, sigValueHex4, publicKey, {
hash: true,
}); // 验签结果
// 纯签名 + 生成椭圆曲线点 + sm3杂凑(不做公钥推导)
let sigValueHex5 = sm2.doSignature(msg, privateKey, {
hash: true,
publicKey, // 传入公钥的话,可以去掉sm3杂凑中推导公钥的过程,速度会比纯签名 + 生成椭圆曲线点 + sm3杂凑快
});
let verifyResult5 = sm2.doVerifySignature(msg, sigValueHex5, publicKey, {
hash: true,
publicKey,
});
获取椭圆曲线点
const sm2 = require('sm-crypto').sm2;
let poin = sm2.getPoint(); // 获取一个椭圆曲线点,可在sm2签名时传入
sm3
const sm3 = require('sm-crypto').sm3;
let hashData = sm3('abc'); // 杂凑
sm4
加密
const sm4 = require('sm-crypto').sm4;
const key = [0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10];
let encryptData = sm4.encrypt([0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10], key); // 加密
解密
const sm4 = require('sm-crypto').sm4;
const key = [0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10];
let decryptData = sm4.decrypt([0x68, 0x1e, 0xdf, 0x34, 0xd2, 0x06, 0x96, 0x5e, 0x86, 0xb3, 0xe9, 0x4f, 0x53, 0x6e, 0x42, 0x46], key); // 解密
协议
MIT