Python实现Word文档异或加密与解密教程

from secrets import token_bytes
from docx import Document
import docx
import time
​
def random_key(length):
    # token_bytes，函数接受一个int参数，用于指定随机字节串的长度。
    # int.from_bytes把字节串转换为int，也就是我们需要的二进制数
    key = token_bytes(nbytes=length)
    key_int = int.from_bytes(key, 'big')
    return key_int
​
def encrypt(raw):
    raw_bytes = raw.encode()
    #参数big意为正序，little则输出反序。
    raw_int = int.from_bytes(raw_bytes, 'big')
    key_int = random_key(len(raw_bytes))
    return raw_int ^ key_int, key_int
​
def decrypt(encrypted, key_int):
    decrypted = encrypted ^ key_int
    length = (decrypted.bit_length() + 7) // 8
    decrypted_bytes = int.to_bytes(decrypted, length, 'big')
    return decrypted_bytes.decode()
​
def encrypt_file(path, key_path=None,):
    document = Document(path)
    all_paragraphs = document.paragraphs
    file = docx.Document()
    file2 = docx.Document()
​
    jkl = input('请输入希望保存的文件名：') + '.docx'
​
    for paragraph in all_paragraphs:
        # 打印每一个段落的文字
        zz,key = encrypt(paragraph.text)
​
        #print('加密：',zz)
        #print('key:', key)
​
        file.add_paragraph(str(zz))
        file.save(jkl)
​
        file2.add_paragraph(str(key))
        file2.save("key.docx")
​
print('滑稽研究所出品！')
print('仅支持英文文件名。')
chenggong = encrypt_file(input('请输入需要加密的文件名：'))
print("已完成！十秒后自动关闭")
time.sleep(10)
#生成加密文件

from secrets import token_bytes
from docx import Document
import docx
import time
​
def random_key(length):
    # token_bytes，函数接受一个int参数，用于指定随机字节串的长度。
    # int.from_bytes把字节串转换为int，也就是我们需要的二进制数
    key = token_bytes(nbytes=length)
    key_int = int.from_bytes(key, 'big')
    return key_int
​
def encrypt(raw):
    raw_bytes = raw.encode()
    raw_int = int.from_bytes(raw_bytes, 'big')
    key_int = random_key(len(raw_bytes))
    return raw_int ^ key_int, key_int
​
def decrypt(encrypted, key_int):
    decrypted = encrypted ^ key_int
    length = (decrypted.bit_length() + 7) // 8
    decrypted_bytes = int.to_bytes(decrypted, length, 'big')
    return decrypted_bytes.decode()
​
jjj = []
kkk = []
​
def decrypt_file(path_encrypted, key_path=None, *, encoding='utf-8'):
    document = Document(path_encrypted)
    all_paragraphs = document.paragraphs
​
    do2 = Document('key.docx')
    all_p= do2.paragraphs
​
    for i in all_paragraphs:
        #str转int
        jiam = int(i.text)
        jjj.append(jiam)
​
        #print('加密：',jiam)
    #print(jjj)
​
    for k in all_p:
        #str转int
        key = int(k.text)
        kkk.append(key)
​
        #print('key:',key)
    #print(kkk)
​
    cc = zip(jjj,kkk)
    res = list(cc)
    return res
#传入元组，或两个int。
print('滑稽研究所出品！')
print('警告，严禁修改密钥文件名！！！')
print('直接输入文件名，无需格式后缀。')
rr1 = decrypt_file(input("请输入需要破解文件的文件名(仅限.docx文件)：")+'.docx')
​
file = docx.Document()
for i in rr1:
    ff = decrypt(*i)
    #print(ff)
    #print(type(ff))
    file.add_paragraph(ff)
file.save("res.docx")
print('解密完成，请在当前文件夹下提取文件！')
print('十秒后自动关闭！')
time.sleep(10)