python 签名验证

 RSA签名方式(华为,金立,联想,oppo,三星,支付宝)

import base64
from Crypto.PublicKey import RSA
from Crypto.Signature import PKCS1_v1_5
from Crypto.Hash import SHA, SHA256, MD5

def rsa_sign(pri_key, data, sign_type='RSA'):
    """
    :param pri_key: 私钥
    :param data: 待签名数据
    :param sign_type: 的签名方式
    :return:
    """
    key = RSA.importKey(pri_key)
    if sign_type == 'RSA256':
        h = SHA256.new(data)
    elif sign_type == 'MD5':
        h = MD5.new(data.encode('utf-8'))
    else:
        h = SHA.new(data)
    signer = PKCS1_v1_5.new(key)
    signature = signer.sign(h)
    return base64.b64encode(signature)


def rsa_verify(pub_key, data, sign, sign_type='RSA'):
    """
    :param pub_key: 公钥
    :param data: 待签名数据
    :param sign: 需要验签的签名
    :param sign_type: 的签名方式
    :return:
    """
    key = RSA.importKey(pub_key)
    if sign_type == 'RSA256':
        h = SHA256.new(data)
    elif sign_type == 'MD5':
        h = MD5.new(data.encode('utf-8'))
    else:
        h = SHA.new(data)
    verifier = PKCS1_v1_5.new(key)
    return verifier.verify(h, base64.b64decode(sign))

 

MD5签名方式:(百度,阿里九游,魅族,360,vivo,微信)

import hashlib
md5Sign = str(hashlib.md5(sign_str).hexdigest()).lower()

 

Hmac-SHA1签名方式:(米大师(应用宝),小米)

from hashlib import sha1
import hmac
import base64
使用HMAC-SHA1加密算法,使用Step2中得到的密钥对Step1中得到的源串加密
my_sign = hmac.new(app_key, sign_str, sha1).digest()
将加密后的字符串经过Base64编码
my_sign = base64.b64encode(my_sign)

 

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