将下面代码修改成正确格式 rom Crypto.Cipher import AES, PKCS1_OAEP from Crypto.Random import get_random_bytes from Crypto.Util.Padding import pad, unpad from Crypto.PublicKey import RSA # 生成RSA公私钥对 key = RSA.generate(2048) pub_key = key.publickey() # 加载明文文件 with open('p_text.txt', 'rb') as f: plain_text = f.read() # 生成随机密钥 session_key = get_random_bytes(16) # 用接收方公钥加密会话密钥 cipher_rsa = PKCS1_OAEP.new(pub_key) encrypted_key = cipher_rsa.encrypt(session_key) # 使用OFB模式加密明文文件 cipher_aes = AES.new(session_key, AES.MODE_OFB) cipher_text = cipher_aes.encrypt(pad(plain_text, AES.block_size)) # 保存密文文件 with open('c_text.txt', 'wb') as f: f.write(cipher_text) # 接收方用私钥解密会话密钥 cipher_rsa = PKCS1_OAEP.new(key) decrypted_key = cipher_rsa.decrypt(encrypted_key) # 用会话密钥解密密文文件 cipher_aes = AES.new(decrypted_key, AES.MODE_OFB) decrypted_text = unpad(cipher_aes.decrypt(cipher_text), AES.block_size) # 保存解密后的明文文件 with open('p1_text.txt', 'wb') as f: f.write(decrypted_text) # 比较明文文件和解密后的明文文件 with open('p_text.txt', 'rb') as f1, open('p1_text.txt', 'rb') as f2: if f1.read() == f2.read(): print('文件一致') else: print('文件不一致')

请注意，Python代码的格式对于程序的正确性非常重要。下面是修改后的代码：

from Crypto.Cipher import AES, PKCS1_OAEP
from Crypto.Random import get_random_bytes
from Crypto.Util.Padding import pad, unpad
from Crypto.PublicKey import RSA

# 生成RSA公私钥对
key = RSA.generate(2048)
pub_key = key.publickey()

# 加载明文文件
with open('p_text.txt', 'rb') as f:
    plain_text = f.read()

# 生成随机密钥
session_key = get_random_bytes(16)

# 用接收方公钥加密会话密钥
cipher_rsa = PKCS1_OAEP.new(pub_key)
encrypted_key = cipher_rsa.encrypt(session_key)

# 使用OFB模式加密明文文件
cipher_aes = AES.new(session_key, AES.MODE_OFB)
cipher_text = cipher_aes.encrypt(pad(plain_text, AES.block_size))

# 保存密文文件
with open('c_text.txt', 'wb') as f:
    f.write(cipher_text)

# 接收方用私钥解密会话密钥
cipher_rsa = PKCS1_OAEP.new(key)
decrypted_key = cipher_rsa.decrypt(encrypted_key)

# 用会话密钥解密密文文件
cipher_aes = AES.new(decrypted_key, AES.MODE_OFB)
decrypted_text = unpad(cipher_aes.decrypt(cipher_text), AES.block_size)

# 保存解密后的明文文件
with open('p1_text.txt', 'wb') as f:
    f.write(decrypted_text)

# 比较明文文件和解密后的明文文件
with open('p_text.txt', 'rb') as f1, open('p1_text.txt', 'rb') as f2:
    if f1.read() == f2.read():
        print('文件一致')
    else:
        print('文件不一致')

这段代码的主要修改是对缩进进行了修正，使其符合 Python 代码的语法要求。同时，可以看到这段代码使用了 Python 标准库中的 `Crypto` 模块，来实现 RSA 和 AES 算法的加密和解密。