Python 3暗号化(hashlib/hmac)

Python 3暗号化(hashlib/hmac)
本論文はLuzhuoによって作成され、転送はこの情報を保持してください。
以下のコードはPython 3.6.1を例にとってLess is more！hashlib：不可逆暗号hmac：不可逆キーペア方式暗号化base 64：可逆暗号化
hashlib

#!/usr/bin/env python
# coding=utf-8
__author__ = 'Luzhuo'
__date__ = '2017/5/19'
# hash_demo.py Hash    (    )
#   : MD5, SHA1 SHA224 SHA256 SHA384 SHA512


import hashlib


def hash_demo():
    m = hashlib.md5()
    m.update(b"hello")
    m.update(b"world!")  # = hello + world!

    hash_hex = hashlib.sha3_512(b"luzhuo.me").hexdigest()

    print(m.digest_size)
    print(m.digest())  #    hash
    print(m.hexdigest())  #     hash
    print(hash_hex)

    #     
    hash_bytes = hashlib.pbkdf2_hmac('sha256', b'luzhuo.me', b'80', 100000)
    print(hash_bytes)



def hash_func():
    # hashlib.new(name[, data])  //   hashlib(   ), name=   , data:  
    hash = hashlib.new('ripemd160', b'luzhuo.me')

    #   
    dics = hashlib.algorithms_guaranteed  #        hash     
    dics = hashlib.algorithms_available  #  Python       hash     ,    new() ,    

    # hashlib.pbkdf2_hmac(hash_name, password, salt, iterations, dklen=None) //      hash_name:hash  , password:  , salt: , iterations:    , dklen:    
    hash_bytes = hashlib.pbkdf2_hmac('sha256', b'luzhuo.me', b'80', 100000)

    # hash  
    num = hash.digest_size  # hash     
    num = hash.block_size  # hash         
    strs = hash.name  # hash  ,    new()  
    hash.update(b"data")  #       hash.update(a) hash.update(b) == hash.update(a+b)
    hash_bytes = hash.digest()  #   hash
    hash_str = hash.hexdigest()  # 16     hash
    hash = hash.copy()  #   hash    



if __name__ == "__main__":
    hash_demo()

    # hash_func()

hmac

#!/usr/bin/env python
# coding=utf-8
__author__ = 'Luzhuo'
__date__ = '2017/5/19'
# hmac_demo.py HMAC  
#  hashlib        key

import hmac


def hmac_demo():
    #   
    h = hmac.new(b"net")
    h.update(b"luzhuo.me")
    h_str = h.hexdigest()
    print(h_str)

    #     
    boolean = hmac.compare_digest(h_str, hmac.new(b"net", b"luzhuo.me").hexdigest())
    print(boolean)



def hmac_func():
    #   key   ,      
    # hmac.new(key, msg=None, digestmod=None) //     hmac  , key: , msg:update(msg), digestmod:hash  ( hashlib.new())(  md5)
    hc = hmac.new(b"key")

    # hmac  
    hc.update(b"msg")  #        hc.update(a) hc.update(b) == hc.update(a+b)
    hash_bytes = hc.digest()  #   hash
    hash_str = hc.hexdigest()  # 16  hash   
    hc = hc.copy()  #   hmac  
    num = hc.digest_size  # hash  
    num = hc.block_size  # hash       
    strs = hc.name  # hash  
    # hmac.compare_digest(a, b) //     hash      ,     : str / bytes-like object, ( :    ,     a==b)
    boolean = hmac.compare_digest(hmac.new(b"net", b"luzhuo.me").digest(), hmac.new(b"net", b"luzhuo.me").digest())




if __name__ == "__main__":
    hmac_demo()

    # hmac_func()