Python的RSA签名

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 RSAfrom Crypto.Hash import MD5from Crypto.Signature import PKCS1_v1_5 as pkdef sign(signdata):    privatekey = RSA.importKey(ASNKEY)    h=MD5.new(signdata)    signer = pk.new(privatekey)    signn=signer.sign(h)    signn=ByteToHex(signn)    return signndef ByteToHex(bins):    return ''.join( [ "%02x" % x for x in bins ] ).strip()def HexToByte(hexStr):    return bytes.fromhex(hexStr)ASNKEY = """-----BEGIN RSA PRIVATE KEY-----MIIBOgIBAAJBALecq3BwAI4YJZwhJ+snnDFj3lF3DMqNPorV6y5ZKXCiCMqj8OeOmxk4YZW9aaV9ckl/zlAOI0mpB3pDT+Xlj2sCAwEAAQJAW6/aVD05qbsZHMvZuS2Aa5FpNNj0BDlf38hOtkhDzz/hkYb+EBYLLvldhgsD0OvRNy8yhz7EjaUqLCB0juIN4QIhAOeCQp+NXxfBmfdG/S+XbRUAdv8iHBl+F6O2wr5fA2jzAiEAywlDfGIl6acnakPrmJE0IL8qvuO3FtsHBrpkUuOnXakCIQCqdr+XvADI/UThTuQepuErFayJMBSAsNe3NFsw0cUxAQIgGA5n7ZPfdBi3BdM4VeJWb87WrLlkVxPqeDSbcGrCyMkCIFSs5JyXvFTreWt7IQjDssrKDRIPmALdNjvfETwlNJyY-----END RSA PRIVATE KEY-----"""PCKS8KEY = """-----BEGIN PRIVATE KEY-----MIIBVAIBADANBgkqhkiG9w0BAQEFAASCAT4wggE6AgEAAkEAt5yrcHAAjhglnCEn6yecMWPeUXcMyo0+itXrLlkpcKIIyqPw546bGThhlb1ppX1ySX/OUA4jSakHekNP5eWPawIDAQABAkBbr9pUPTmpuxkcy9m5LYBrkWk02PQEOV/fyE62SEPPP+GRhv4QFgsu+V2GCwPQ69E3LzKHPsSNpSosIHSO4g3hAiEA54JCn41fF8GZ90b9L5dtFQB2/yIcGX4Xo7bCvl8DaPMCIQDLCUN8YiXppydqQ+uYkTQgvyq+47cW2wcGumRS46ddqQIhAKp2v5e8AMj9ROFO5B6m4SsVrIkwFICw17c0WzDRxTEBAiAYDmftk990GLcF0zhV4lZvztasuWRXE+p4NJtwasLIyQIgVKzknJe8VOt5a3shCMOyysoNEg+YAt02O98RPCU0nJg=-----END PRIVATE KEY-----"""header = "<!-- 537606aed546c5ba42c0820ad7fd0d74ee7caf90c232a484d0464b3332c42a9189555aebdba3570fe6566842ba7b7bb88da360f202ae9536a2a12fcdf39600c7 --><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 rsadef ByteToHex(bins):    return ''.join(["%02x" % x for x in bins]).strip()def HexToByte(hexStr):    return bytes.fromhex(hexStr)ASNKEY = """-----BEGIN RSA PRIVATE KEY-----MIIBOgIBAAJBALecq3BwAI4YJZwhJ+snnDFj3lF3DMqNPorV6y5ZKXCiCMqj8OeOmxk4YZW9aaV9ckl/zlAOI0mpB3pDT+Xlj2sCAwEAAQJAW6/aVD05qbsZHMvZuS2Aa5FpNNj0BDlf38hOtkhDzz/hkYb+EBYLLvldhgsD0OvRNy8yhz7EjaUqLCB0juIN4QIhAOeCQp+NXxfBmfdG/S+XbRUAdv8iHBl+F6O2wr5fA2jzAiEAywlDfGIl6acnakPrmJE0IL8qvuO3FtsHBrpkUuOnXakCIQCqdr+XvADI/UThTuQepuErFayJMBSAsNe3NFsw0cUxAQIgGA5n7ZPfdBi3BdM4VeJWb87WrLlkVxPqeDSbcGrCyMkCIFSs5JyXvFTreWt7IQjDssrKDRIPmALdNjvfETwlNJyY-----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