?本專欄主要用python實現密碼學中的常用經典算法，例如Vigenere、3DES、RSA、ElGamal、Diffie-Hellman、RSA簽名、ElGamal簽名、HMAC、哈希算法、列移位、AES等等。
🔥文章和代碼已歸檔至【Github倉庫：cryptography-codebase】，需要的朋友們自取。或者公眾號【AIShareLab】回復 密碼學 也可獲取。

Program : HMAC

In this program, you are required to invoke the scrypt algorithms that are implemented in hashlib build-in library. Your program does the following:

• Read the plaintext password as a text string
• Encode the password into byte array, with utf-8 encoding
• Read the salt byte array as a hex string
• Invoke the scrypt method with parameters $n=4$, $r=8$, $p=16$
• Output the result byte array as a hex string

Example Input

Thi$ i$ my passw0rd! 477d15cb740ca1da08f6d851361b3c80

Example Output

fd5963b9e6905d36ca8d00e3a740a3ab7a40b3d60237b6f2ed3025eee770f2d71bc95ba3e98265bea4308250d02f0e10bb78e710d9f0ef7ae9a4fa52a0818d27

solution code

import hashlib import base64# define the function decode_utf8 def decode_utf8(in_bytes: bytes) -> str:return in_bytes.decode('utf-8') #Read the plaintext password as a text string password_str: str = input("input the plaintext password：") # Encode the password into byte array, with utf-8 encoding password_bytes: bytes = password_str.encode("utf-8") # Read the salt byte array as a hex string salt_str: str = input("input the salt：") salt_bytes: bytes = bytes.fromhex(salt_str) # Invoke the scrypt method with parameters n = 4 ,r = 8 ,p = 16 n: int = 4 r: int = 8 p: int = 16 result_bytes: bytes = hashlib.scrypt(password_bytes, salt=salt_bytes, n=n, r=r, p=p) # Output the result byte array as a hex string result_str: str = result_bytes.hex() print(result_str)

output

input the plaintext password：Thi$ i$ my passw0rd! input the salt：477d15cb740ca1da08f6d851361b3c80 fd5963b9e6905d36ca8d00e3a740a3ab7a40b3d60237b6f2ed3025eee770f2d71bc95ba3e98265bea4308250d02f0e10bb78e710d9f0ef7ae9a4fa52a0818d27進程已結束，退出代碼為 0

A screenshot of the console output of the program

總結

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