hmac: hex-based message authentication code 哈希消息認證碼
需要注意傳入的key和message都是bytes類型，str類型需要首先編碼為bytes。
# coding:utf-8 import hmac secret_key1 = b'This is my secret key' message1 = b'Hello world' hex_res1 = hmac.new(secret_key1, message1, digestmod="MD5").hexdigest() print(hex_res1) # b8908a20bd70f465330b434e18441d3b secret_key2 = b'This is my secret key' message2 = b'Hello world' hex_res2 = hmac.new(secret_key2, message2, digestmod="MD5").hexdigest() print(hex_res2) # b8908a20bd70f465330b434e18441d3b compare_res = hmac.compare_digest(hex_res1, hex_res2) # 比較兩個密文是否相同 print(compare_res) # True secret_key3 = b'This is my secret key' message3 = b'Hello world!' hex_res3 = hmac.new(secret_key3, message3, digestmod="MD5").hexdigest() print(hex_res3) # a314490e13ff3d1dfa9cd18db8c4c3e8 compare_res = hmac.compare_digest(hex_res1, hex_res3) # 比較兩個密文是否相同 print(compare_res) # False hmac_hex = hmac.new(secret_key3, message3, digestmod='md5').hexdigest() print(hmac_hex) # a314490e13ff3d1dfa9cd18db8c4c3e8 print(hmac.new(secret_key3, message3, 'md5').digest()) # b'\xa3\x14I\x0e\x13\xff=\x1d\xfa\x9c\xd1\x8d\xb8\xc4\xc3\xe8' print(len(hmac.new(secret_key3, message3, 'md5').digest())) # 16 content = "hello world" content_bytes = content.encode("utf-8") content_bytes_upper = content_bytes.upper() # 今天才知道,還可以對bytes進行upper print(content_bytes_upper.decode("utf-8")) # HELLO WORLD