import hashlib
 
m = hashlib.md5()
m.update(b"hello")
print(m.hexdigest())
m.update(b"It's me")
print(m.hexdigest())
m.update(b"It's been a long time since we spoken.")
print(m.hexdigest())
 
m2 = hashlib.md5()
m2.update(b"helloIt's me")
print(m2.hexdigest())
 
# 输出
5d41402abc4b2a76b9719d911017c592
64f69d95135bc13d4827f871b37f780f
0c9a83e10aa2f9e9629be61146db9cc2
64f69d95135bc13d4827f871b37f780f
 
#第二个和第四个 md5值是相同的，所以第二个加密的是 helloIt'sme<br><code class="python comments"><br></code>

# ######## sha1 ########
 
hash = hashlib.sha1()
hash.update('admin')
print(hash.hexdigest())
 
# ######## sha256 ########
 
hash = hashlib.sha256()
hash.update('admin')
print(hash.hexdigest())
 
 
# ######## sha384 ########
 
hash = hashlib.sha384()
hash.update('admin')
print(hash.hexdigest())
 
# ######## sha512 ########
 
hash = hashlib.sha512()
hash.update('admin')
print(hash.hexdigest())

import hmac
 
h = hmac.new("天王盖地虎".encode(encoding="utf-8"), "你是小松鼠".encode(encoding="utf-8"))
print(h.digest())
print(h.hexdigest())
 
#输出
b'fx\xad\xdd\x9e\xd6\xddcQN\x82c\xcd\xd9\x80-'
6678addd9ed6dd63514e8263cdd9802d