微信小程序-RSA签名、验签、加密、解密

title: 【小程序】RSA签名
type: categories
date: 2017-05-27 17:01:15
categories: 小程序

tags: [RSA, 签名]

一个适用于微信小程序的RSA签名加密库。

RSA签名的小程序DEMO：https://github.com/zhangzhaopds/WeixinApp_RSA_Signature.git

使用

1、引入文件

var RSA = require('../../utils/wxapp_rsa.js')

2、调用

var privateKey_pkcs1 = '-----BEGIN RSA PRIVATE KEY-----MIICXQIBAAKBgQCk7WKdggwBOtteLL5sPom8RYCjuw0hy6R1jH39tCaep1Dns02bi4CYHk2dSR / t0ABgF5pHYeMxHa74Dp6Z6SjfAKMUu53BbTR615ehK + 03BjtzJzviTF1 / NtLmGaR3aawrDp7oQgq33dfIYbWLuAMkHNiWaoXaGyHh3a8jS2vxfQIDAQABAoGAIKRnLzts + tVWU5ZRfgUGp7 + tzToZSEYQ378VtJ / yQNZmueUQCCgdJH5i6C1v51aSrHIfc99Y4wC3/ 5qNI3M1RlRpIakmcaiEv1m6huDPLKFq6Y1e+ AZ0Cb0xo3bny + VTOvfGgcAdSa6++K47bGaxyKzwGeNZQkltm5sgbVcKvkECQQDVjWbSU8P8nDb+TP5Aqr + DaMVA425wv2ra2jhxd6KqKxgHHB7yYWlODiYNrtALOEG9zfSpHVQWhZpiKq8XcWwRAkEAxbWzPAqZxaZ / XTs65uCL0 + iqif0qCSDUNis61wYm2UwOh4LqBZIFop94B3ybEXbCvUl0v26H0fgXjFUErvlKrQJBAKjbAe5U5accLi + t2WxwlrXlZfME4hKsiGU8H10455n+ MSWOCrpEY + ugLF6tVztH5FOcQlRmKFMWmRf + ACxdNsECQDBjkEKZtZkSbwm6fWgUfSSYRWUQeUFSr52yZuxJrShx3Px9phlG6 + opbY8niCx2DKOXXuObgdJ6DglipYrNqOECQQCndP + zU / jwlvjQzEabKdP05uFc5JV6ySFBQwuoENbEvW3uz + Yz31xDYbrwIzrysVDovlj0ExL6LC + JRvpJmHcN-----END RSA PRIVATE KEY-----'    var publicKey_pkcs1 = '-----BEGIN PUBLIC KEY-----MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCk7WKdggwBOtteLL5sPom8RYCjuw0hy6R1jH39tCaep1Dns02bi4CYHk2dSR / t0ABgF5pHYeMxHa74Dp6Z6SjfAKMUu53BbTR615ehK + 03BjtzJzviTF1/ NtLmGaR3aawrDp7oQgq33dfIYbWLuAMkHNiWaoXaGyHh3a8jS2vxfQIDAQAB-----END PUBLIC KEY-----'    // 加签    var sign_rsa = new RSA.RSAKey();     sign_rsa = RSA.KEYUTIL.getKey(privateKey_pkcs1);     console.log('签名RSA:')    console.log(sign_rsa)    var hashAlg = 'sha1';    var hSig = sign_rsa.signString("signData", hashAlg);     hSig = RSA.hex2b64(hSig); // hex 转 b64    console.log("签名结果：" + hSig)    // 验签    var verify_rsa = new RSA.RSAKey();    verify_rsa = RSA.KEYUTIL.getKey(publicKey_pkcs1);    console.log('验签RSA:')    console.log(verify_rsa)    hSig = RSA.b64tohex(hSig)    var ver = verify_rsa.verifyString("signData", hSig)     console.log('验签结果：' + ver)    // 加密    var encrypt_rsa = new RSA.RSAKey();    encrypt_rsa = RSA.KEYUTIL.getKey(publicKey_pkcs1);    console.log('加密RSA:')    console.log(encrypt_rsa)    var encStr = encrypt_rsa.encrypt('123456')    encStr = RSA.hex2b64(encStr);    console.log("加密结果：" + encStr)    // 解密    var decrypt_rsa = new RSA.RSAKey();    decrypt_rsa = RSA.KEYUTIL.getKey(privateKey_pkcs1);    console.log('解密RSA:')    console.log(decrypt_rsa)    encStr = RSA.b64tohex(encStr)    var decStr = decrypt_rsa.decrypt(encStr)    console.log("解密结果：" + decStr)

需要注意的是：区分RSA私钥的类型，有pkcs1和pkcs8。pkcs8格式的私钥主要用于java中。

// pkcs1格式：-----BEGIN RSA PRIVATE KEY----------END RSA PRIVATE KEY------// pkcs8格式：-----BEGIN PRIVATE KEY----------END PRIVATE KEY-----