未经授权的代理 meaning in English

unauthorized representation

During the transmission of alice s public key , however , an unauthorized agent might intercept the key
但是，在传输小红的公钥期间，未经授权的代理可能截获该密钥。
You must secure the key from access by unauthorized agents because any party that has the key can use it to decrypt data
由于具有密钥的任意一方都可以使用该密钥解密数据，因此必须保护密钥不被未经授权的代理得到。