首先，生成一對密鑰，並保存
def create_keys(): # 生成公鑰和私鑰
(pubkey, privkey) = rsa.newkeys(1024)
pub = pubkey.save_pkcs1()
with open('public.pem','wb+')as f:
f.write(pub)
pri = privkey.save_pkcs1()
with open('private.pem','wb+')as f:
f.write(pri)
對信息進行加密和解密的過程：
def encrypt(): # 用公鑰加密
with open('public.pem', 'rb') as publickfile:
p = publickfile.read()
pubkey = rsa.PublicKey.load_pkcs1(p)
original_text = 'have a good time'.encode('utf8')
crypt_text = rsa.encrypt(original_text, pubkey)
print(crypt_text)
return crypt_text # 加密后的密文
def decrypt(crypt_text): # 用私鑰解密
with open('private.pem', 'rb') as privatefile:
p = privatefile.read()
privkey = rsa.PrivateKey.load_pkcs1(p)
lase_text = rsa.decrypt(crypt_text, privkey).decode() # 注意，這里如果結果是bytes類型，就需要進行decode()轉化為str
print(lase_text)
if __name__ == '__main__':
crypt_text = encrypt()
lase_text = decrypt(crypt_text)