AES/CBC/Nopadding，Hex编码怎么实现啊

Question

需要使用python实现一个AES加密，AES加密，CBC模式，Nopadding填充模式，HEX编码
我自己使用pycryptodome仅能实现b64和UTF-8编码，有没有人帮忙看看啊
希望实现的是这样一个效果↓

Answer 1

from Crypto.Cipher import AES
import binascii

def aes_encrypt(key, iv, plaintext):
    cipher = AES.new(key, AES.MODE_CBC, iv)
    ciphertext = cipher.encrypt(plaintext)
    return ciphertext

def aes_decrypt(key, iv, ciphertext):
    cipher = AES.new(key, AES.MODE_CBC, iv)
    plaintext = cipher.decrypt(ciphertext)
    return plaintext

def add_padding(plaintext):
    padding_length = AES.block_size - (len(plaintext) % AES.block_size)
    padded_plaintext = plaintext + bytes([padding_length] * padding_length)
    return padded_plaintext

def remove_padding(padded_plaintext):
    padding_length = padded_plaintext[-1]
    plaintext = padded_plaintext[:-padding_length]
    return plaintext

def encrypt_text(key, iv, plaintext):
    padded_plaintext = add_padding(plaintext)
    ciphertext = aes_encrypt(key, iv, padded_plaintext)
    return binascii.hexlify(ciphertext).decode()

def decrypt_text(key, iv, ciphertext):
    ciphertext = binascii.unhexlify(ciphertext)
    padded_plaintext = aes_decrypt(key, iv, ciphertext)
    plaintext = remove_padding(padded_plaintext)
    return plaintext.decode()

key = b'0123456789abcdef'  # 16字节的密钥
iv = b'abcdef9876543210'  # 16字节的初始向量
plaintext = b'This is a secret message'

encrypted_text = encrypt_text(key, iv, plaintext)
print("加密后的文本：", encrypted_text)

decrypted_text = decrypt_text(key, iv, encrypted_text)
print("解密后的文本：", decrypted_text)