RSA签名 python PHP demo 例子

python RSA+MD5签名demo：

 #!/usr/bin/env python2.7
 #coding:utf-8

 import base64
 from Crypto.PublicKey import RSA
 from Crypto.Signature import PKCS1_v1_5
 from Crypto.Hash import SHA,MD5

 TEST_PRIKEY='''-----BEGIN RSA PRIVATE KEY-----
 MIIBVAIBADANBgkqhkiG9w0BAQEFAASCAT4wggE6AgEAAkEAmXug8cAahQfFpHYGe3K9gHsBvhnD
 VlfR+SkfVQ8pLFEeQGWu7C0xKLNgzkBKP8A9y9j+Zoyv1irPRJvasgR3uwIDAQABAkAN6AezH8bH
 Wubrec4ojULiS0LjKI5sWlSqELHIETGX1DXPrkx61AojZGFdO+4rINkXgix5sQAkeExlWml8EMph
 AiEAx4gOPVfATGBm7AWS74geXFaA0ONegSJy1i5oUJnHm/MCIQDE62Gyi1lzmCnC63S7EgmvbtK0
 BzZhgs95k3NPLtEPGQIhAJQJ7ga1RIdmPvZ+bDYr19rKk2hoSYWl+W3PoLWsYtzhAiAWwGtlSZxo
 MqiAkNvH0Wm1D0Tg8ARkd8yo61RjTbFx4QIgAzEzc/MYJubgOqjGB91Bo/GIWyx1NEmBstdA3G5W
 f08=
 -----END RSA PRIVATE KEY-----'''

 TEST_PUBKEY='''-----BEGIN PUBLIC KEY-----
 MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAJl7oPHAGoUHxaR2BntyvYB7Ab4Zw1ZX0fkpH1UPKSxR
 HkBlruwtMSizYM5ASj/APcvY/maMr9Yqz0Sb2rIEd7sCAwEAAQ==
 -----END PUBLIC KEY-----'''

 def sign(data,priKey=None):
     if priKey==None:
         priKey=TEST_PRIKEY
     key = RSA.importKey(priKey)
     h = MD5.new(data)
     # print h
     signer = PKCS1_v1_5.new(key)
     signature = signer.sign(h)
     # print signature
     return_ret= base64.b64encode(signature)
     # print return_ret
     return return_ret

 def verify(data, signature, DEBUG=False):
     if DEBUG:
         pubKey=TEST_PUBKEY
     else:
         pubKey=''
     if not data:
         return False
     if not signature:
         return False
     key = RSA.importKey(pubKey)
     h = MD5.new(data)
     verifier = PKCS1_v1_5.new(key)
     if verifier.verify(h, base64.b64decode(signature)):
         return True
     return False

 if __name__ == '__main__':
     test_byte = 'test_abc'
     print test_byte
     sign_data = sign(test_byte)
     print sign_data
     print verify(test_byte, sign_data, DEBUG=True)

RSA签名加密及验证

PHP RSA+MD5签名demo：

 <?php
 ini_set('error_reporting', -1);
 ini_set('display_errors', -1);

 header('Content-Type: text/html; charset=utf-8');

 # openssl genrsa -out rsa_private_key.pem 1024
 # openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem

 $private_key = file_get_contents("rsa_private_key.pem");
 $public_key = file_get_contents("rsa_public_key.pem");

 $data = 'test_abc';

 $res = openssl_get_privatekey($private_key);
 openssl_sign($data, $sign, $res, OPENSSL_ALGO_MD5);
 openssl_free_key($res);
 $encrypt = base64_encode($sign);
 echo $encrypt,"\n";

PHP RSA签名 rsa_demo.php

PS：PHP 加密方法openssl_sign API：http://php.net/manual/zh/function.openssl-sign.php

Signature Algorithms 参数可以直接指定 OPENSSL_ALGO_MD5