Python的RSA签名

Love The Way You Lie 2022-06-07 12:53 532阅读 0赞

Python的rsa签名方法

需要安装pycrypto

pip install pycrypto

python代码

#!-*- coding:utf-8 -*-
    
    from Crypto.PublicKey import RSA
    from Crypto.Hash import MD5
    from Crypto.Signature import PKCS1_v1_5 as pk
    
    def sign(signdata):
        privatekey = RSA.importKey(ASNKEY)
        h=MD5.new(signdata)
        signer = pk.new(privatekey)
        signn=signer.sign(h)
        signn=ByteToHex(signn)
        return signn
    
    def ByteToHex(bins):
        return ''.join( [ "%02x" % x for x in bins ] ).strip()
    
    def HexToByte(hexStr):
        return bytes.fromhex(hexStr)
    
    
    
    ASNKEY = """-----BEGIN RSA PRIVATE KEY-----
    MIIBOgIBAAJBALecq3BwAI4YJZwhJ+snnDFj3lF3DMqNPorV6y5ZKXCiCMqj8OeOmxk4YZW9aaV9
    ckl/zlAOI0mpB3pDT+Xlj2sCAwEAAQJAW6/aVD05qbsZHMvZuS2Aa5FpNNj0BDlf38hOtkhDzz/h
    kYb+EBYLLvldhgsD0OvRNy8yhz7EjaUqLCB0juIN4QIhAOeCQp+NXxfBmfdG/S+XbRUAdv8iHBl+
    F6O2wr5fA2jzAiEAywlDfGIl6acnakPrmJE0IL8qvuO3FtsHBrpkUuOnXakCIQCqdr+XvADI/UTh
    TuQepuErFayJMBSAsNe3NFsw0cUxAQIgGA5n7ZPfdBi3BdM4VeJWb87WrLlkVxPqeDSbcGrCyMkC
    IFSs5JyXvFTreWt7IQjDssrKDRIPmALdNjvfETwlNJyY
    -----END RSA PRIVATE KEY-----"""
    
    PCKS8KEY = """-----BEGIN PRIVATE KEY-----
    MIIBVAIBADANBgkqhkiG9w0BAQEFAASCAT4wggE6AgEAAkEAt5yrcHAAjhglnCEn
    6yecMWPeUXcMyo0+itXrLlkpcKIIyqPw546bGThhlb1ppX1ySX/OUA4jSakHekNP
    5eWPawIDAQABAkBbr9pUPTmpuxkcy9m5LYBrkWk02PQEOV/fyE62SEPPP+GRhv4Q
    Fgsu+V2GCwPQ69E3LzKHPsSNpSosIHSO4g3hAiEA54JCn41fF8GZ90b9L5dtFQB2
    /yIcGX4Xo7bCvl8DaPMCIQDLCUN8YiXppydqQ+uYkTQgvyq+47cW2wcGumRS46dd
    qQIhAKp2v5e8AMj9ROFO5B6m4SsVrIkwFICw17c0WzDRxTEBAiAYDmftk990GLcF
    0zhV4lZvztasuWRXE+p4NJtwasLIyQIgVKzknJe8VOt5a3shCMOyysoNEg+YAt02
    O98RPCU0nJg=
    -----END PRIVATE KEY-----"""
    
    
    header = "<ObtainTicketResponse><message></message><prolongationPeriod>607875500</prolongationPeriod><responseCode>OK</responseCode><salt>1508484258274</salt><ticketId>1</ticketId><ticketProperties>licensee=Administrator    licenseType=0   </ticketProperties></ObtainTicketResponse>";
    content = "<ObtainTicketResponse><message></message><prolongationPeriod>607875500</prolongationPeriod><responseCode>OK</responseCode><salt>1508484258274</salt><ticketId>1</ticketId><ticketProperties>licensee=Administrator\tlicenseType=0\t</ticketProperties></ObtainTicketResponse>"
    print(sign(str.encode(content)))

update20171023：由于以上代码仅在非windows环境先容易实现，win安装pycrypto太费劲了

rsa签名可替换为纯python实现

安装rsa

pip install rsa

等价的签名代码示例

# -*- coding: UTF-8 -*-
    import rsa
    
    
    def ByteToHex(bins):
        return ''.join(["%02x" % x for x in bins]).strip()
    
    
    def HexToByte(hexStr):
        return bytes.fromhex(hexStr)
    
    ASNKEY = """-----BEGIN RSA PRIVATE KEY-----
    MIIBOgIBAAJBALecq3BwAI4YJZwhJ+snnDFj3lF3DMqNPorV6y5ZKXCiCMqj8OeOmxk4YZW9aaV9
    ckl/zlAOI0mpB3pDT+Xlj2sCAwEAAQJAW6/aVD05qbsZHMvZuS2Aa5FpNNj0BDlf38hOtkhDzz/h
    kYb+EBYLLvldhgsD0OvRNy8yhz7EjaUqLCB0juIN4QIhAOeCQp+NXxfBmfdG/S+XbRUAdv8iHBl+
    F6O2wr5fA2jzAiEAywlDfGIl6acnakPrmJE0IL8qvuO3FtsHBrpkUuOnXakCIQCqdr+XvADI/UTh
    TuQepuErFayJMBSAsNe3NFsw0cUxAQIgGA5n7ZPfdBi3BdM4VeJWb87WrLlkVxPqeDSbcGrCyMkC
    IFSs5JyXvFTreWt7IQjDssrKDRIPmALdNjvfETwlNJyY
    -----END RSA PRIVATE KEY-----"""
    privkey = rsa.PrivateKey.load_pkcs1(ASNKEY)
    message = '<ObtainTicketResponse><message></message><prolongationPeriod>607875500</prolongationPeriod><responseCode>OK</responseCode><salt>1508484258274</salt><ticketId>1</ticketId><ticketProperties>licensee=Administrator\tlicenseType=0\t</ticketProperties></ObtainTicketResponse>'
    signature = rsa.sign(str.encode(message), privkey, 'MD5')
    signature=ByteToHex(signature)
    print(signature)

这样基本就能无痛跨平台了