Plug.Crypto.MessageEncryptor (Plug.Crypto v1.2.2) View Source
MessageEncryptor
is a simple way to encrypt values which get stored
somewhere you don't trust.
The encrypted key, initialization vector, cipher text, and cipher tag are base64url encoded and returned to you.
This can be used in situations similar to the Plug.Crypto.MessageVerifier
,
but where you don't want users to be able to determine the value of the payload.
The current algorithm used is AES-GCM-128.
Example
iex> secret_key_base = "072d1e0157c008193fe48a670cce031faa4e..."
...> encrypted_cookie_salt = "encrypted cookie"
...> encrypted_signed_cookie_salt = "signed encrypted cookie"
...>
...> secret = KeyGenerator.generate(secret_key_base, encrypted_cookie_salt)
...> sign_secret = KeyGenerator.generate(secret_key_base, encrypted_signed_cookie_salt)
...>
...> data = "José"
...> encrypted = MessageEncryptor.encrypt(data, secret, sign_secret)
...> MessageEncryptor.decrypt(encrypted, secret, sign_secret)
{:ok, "José"}
Link to this section Summary
Functions
Decrypts a message using authenticated encryption.
Encrypts a message using authenticated encryption.
Link to this section Functions
Decrypts a message using authenticated encryption.
Encrypts a message using authenticated encryption.