pyhthon common module hashlib

python hashlib module

First, the hashlib module is mainly used for encryption, which provides sha1, sha224, sha256, sha384, sha512, and md5 algorithms. Commonly used md5 can complete the requirements.

One, use md5 ordinary encryption

import hashlib

m = hashlib.md5()

m.update (b'cnblog.com ')

print(m.hexdigest

 

Second, 2-time encryption is actually splicing the string to be encrypted for the first time and the string to be encrypted for the second time to do one encryption

import hashlib

m2 = hashlib.md5('www.'.encode('utf-8'))

m2.update('cnblogs.com'.encode('utf-8'))

print(m2.hexdigest())

or

import hashlib

m3 = hashlib.md5()

m3.update('www.'.encode('utf-8'))

m3.update('cnblogs.com'.encode('utf-8'))

print(m3.hexdigest())

Or directly splicing the 2-time encrypted string directly

import hashlib

m4 = hashlib.md5()

m4.update('wwwcnblogs.com'.encode('utf-8'))

print(m4.hexdigest())

Third, use other encryption algorithms, similar to md5, such as sha512

import hashlib

m5 = hashlib.sha512()

m5.update(b'www')

print(m5.hexdigest())