fromCrypto.CipherimportAESfromCrypto.Util.Paddingimportpad,unpadimportos# 生成一个16字节的随机密钥key=os.urandom(16)# 加密函数defencrypt_file(file_name):cipher=AES.new(key,AES.MODE_CBC)# 使用CBC模式withopen(file_name,'rb')asf:plain_text=f.read()cipher_text=cipher.encrypt(pad(plain_text,AE...
public_key() def encrypt_file(file_path, encrypted_file_path): # 读取文件内容 with open(file_path, 'rb') as file: file_data = file.read() # 加密文件内容 encrypted_data = public_key.encrypt( file_data, padding.OAEP( mgf=padding.MGF1(algorithm=hashes.SHA256()), algorithm=hashes....
offset += default_lengthreturn"\n".join(result)defdefault_rsa_encrypt(cipher, message): ciphertext = base64.b64encode(cipher.encrypt(message))# print(b"ciphertext:"+ciphertext)ciphertext_decode = ciphertext.decode("utf-8")# print("ciphertext_decode:"+ciphertext_decode)returnciphertext_decode...
下面是一个使用Python对txt文本内容进行加密的示例代码: fromcryptography.fernetimportFernet# 生成密钥key=Fernet.generate_key()cipher=Fernet(key)# 读取明文文本内容withopen('plain_text.txt','r')asfile:plain_text=file.read().encode()# 对文本内容进行加密encrypted_text=cipher.encrypt(plain_text)# 将加...
message ="The answer is no"ciphertext = obj.encrypt(message) >>> ciphertext '\xd6\x83\x8dd!VT\x92\xaa`A\x05\xe0\x9b\x8b\xf1' >>> obj2 = AES.new('Thisisa key123', AES.MODE_CBC,'Thisisan IV456') >>> obj2.decrypt(ciphertext)'Theanswerisno' ...
(password) encrypted_data = cipher_suite.encrypt(data) with open(file_path + '.encrypted', 'wb') as file: file.write(encrypted_data) # 加密前的明文文件路径 file_path = 'path/to/your/file.txt' # 密码,可以是任意字符串,但必须保密 password = b'your_password' encrypt_file(file_path, ...
In this Python tutorial, we learned "How to Encrypt and Decrypt files in Python?". You can also encrypt and decrypt a file based on a simple and logical algorithm. But with the help of the Python cryptography library, you do not need to implement an algorithm of your own. You can simp...
encrypted_text = cipher.encrypt(plaintext)# 将加密文件写入新文件withopen('encrypted.zip','wb')asfile: file.write(encrypted_text)# 解密文件withopen('encrypted.zip','rb')asfile: encrypted_text = file.read()# 使用对称解密decrypted_text = cipher.decrypt(encrypted_text)# 将解密文件写入新文件wit...
1.ECB模式加密,代码如下: from Crypto.Cipher import AES password = b'1234567812345678' text = b'abcdefghijklmnop' aes = AES.new(password, AES.MODE_ECB) en_text = aes.encrypt(text) print("密文:",en_text) den_text = aes.decrypt(en_text) print("明文:",den_text) password:密钥,b表示转换...
encrypt_and_digest(plaintext) # 之后可使用cipher与tag解密数据 2.1.3 hashlib 模块的哈希功能 Python标准库中的hashlib模块提供了多种工业标准的哈希算法,如MD5、SHA系列等。这些算法可用于数据完整性校验、消息摘要生成以及密码散列。下面是一个使用SHA-256算法计算哈希值的例子: import hashlib # 要哈希的数据 ...