def decrypt(self, root_path, res_path):
"""
RSA的文件解密
:param root_path: 加密后的文件
:param res_path: 解密后的文件
:return: 解密结果
"""
new_line = b""
cipher = PKCS1_OAEP.new(self.private_key, hashAlgo=SHA256)
try:
with open(root_path, "r") as rootf:
lines = rootf.read().split("==")
for line in lines:
if len(line) > 0:
line = line + "=="
b64_decoded_message = base64.b64decode(line)
cipherContent = cipher.decrypt(b64_decoded_message)
new_line = new_line + cipherContent
if not os.path.exists(os.path.dirname(res_path)):
os.makedirs(os.path.dirname(res_path))
with open(res_path, "w") as resf:
resf.write(
str(new_line, encoding="UTF-8").replace("\r\n", "\n"))
return True
except Exception as e:
traceback.print_exc()
loggerUtil.error(traceback.print_exc())
return False
def encrypt(self, root_path, res_path):
try:
# 数据源
data = open(root_path).read().encode("utf-8")
# 输出源
file_out = open(res_path, "wb")
session_key = get_random_bytes(16)
# Encrypt the session key with the public RSA key
cipher_rsa = PKCS1_OAEP.new(self.rsa_public_key)
enc_session_key = cipher_rsa.encrypt(session_key)
# Encrypt the data with the AES session key
cipher_aes = AES.new(session_key, AES.MODE_EAX)
ciphertext, tag = cipher_aes.encrypt_and_digest(data)
[
file_out.write(x)
for x in (enc_session_key, cipher_aes.nonce, tag, ciphertext)
]
return True
except Exception as e:
traceback.print_exc()
loggerUtil.error(traceback.print_exc())
return False
# if __name__ == '__main__':
# FileDecryptEncrypt().decrypt("F:\\868663032830438_migu$user$login$_1554947856915.log","C:\\Users\\Carol\\Desktop\\others\\868663032830438_migu$user$login$_1554947856915.log")
def __init__(self):
try:
self.private_key = RSA.import_key(
open(
os.path.join(os.getcwd(), "app", "resource",
"rsa_private_key.pem")).read())
self.rsa_public_key = RSA.import_key(
open(
os.path.join(os.getcwd(), "app", "resource",
"rsa_public_key.pem")).read())
except Exception as e:
traceback.print_exc()
loggerUtil.error("加载密钥出现异常")
def decryptAES(self, root_path, res_path):
try:
file_in = open(root_path, "rb")
enc_session_key, nonce, tag, ciphertext = \
[file_in.read(x) for x in (self.private_key.size_in_bytes(), 16, 16, -1)]
# Decrypt the session key with the private RSA key
cipher_rsa = PKCS1_OAEP.new(self.private_key, hashAlgo=SHA256)
session_key = cipher_rsa.decrypt(enc_session_key)
# Decrypt the data with the AES session key
cipher_aes = AES.new(session_key, AES.MODE_EAX, nonce)
data = cipher_aes.decrypt_and_verify(ciphertext, tag)
# 返回解密后的数据
with open(res_path, "w+") as resf:
print(data.decode("utf-8"))
resf.write(data.decode("utf-8"))
return True
except Exception as e:
traceback.print_exc()
loggerUtil.error(traceback.print_exc())
return False
def decrypt(self, root_path):
"""
RSA的文件解密
:param root_path: 加密后的文件
:return: 解密后的文件内容
"""
new_line = b""
cipher = PKCS1_OAEP.new(self.private_key, hashAlgo=SHA256)
try:
with open(root_path, "r") as rootf:
lines = rootf.read().split("==")
for line in lines:
if len(line) > 0:
line = line + "=="
b64_decoded_message = base64.b64decode(line)
cipherContent = cipher.decrypt(b64_decoded_message)
new_line = new_line + cipherContent
return new_line
except Exception as e:
traceback.print_exc()
loggerUtil.error(traceback.print_exc())
return None
