本文将带你了解微信小程序开发之RSA签名，希望本文对大家学微信有所帮助。

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/wx_rsa_signature.js')112、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-----'
   
        var rsa = new RSA.RSAKey(); // 新建RSA对象
    rsa =   RSA.KEYUTIL.getKey(privateKey_pkcs1); // 设置私钥
      console.log(rsa)
    var hashAlg = 'sha1'; // 设置sha1 sha256
    var hSig =   rsa.signString("signData", hashAlg); // 加签
   
        var   verify = new RSA.RSAKey();
    verify =   RSA.KEYUTIL.getKey(publicKey_pkcs1);
    var ver =   verify.verifyString("signData", hSig) // 验签
      console.log(ver)
   
        hSig = RSA.hex2b64(hSig); // hex 转 b64
    console.log("签名结果：" + hSig)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-----    

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