Module sodiumoxide::crypto::secretbox::xsalsa20poly1305 [−] [src]

crypto_secretbox_xsalsa20poly1305, a particular combination of Salsa20 and Poly1305 specified in Cryptography in NaCl.

This function is conjectured to meet the standard notions of privacy and authenticity.

Structs

Key	`Key` for symmetric authenticated encryption
Nonce	`Nonce` for symmetric authenticated encryption

KEYBYTES	Number of bytes in `Key`.
MACBYTES	Number of bytes in the authenticator tag of an encrypted message i.e. the number of bytes by which the ciphertext is larger than the plaintext.
NONCEBYTES	Number of bytes in a `Nonce`.

gen_key	`gen_key()` randomly generates a secret key
gen_nonce	`gen_nonce()` randomly generates a nonce
open	`open()` verifies and decrypts a ciphertext `c` using a secret key `k` and a nonce `n`. It returns a plaintext `Ok(m)`. If the ciphertext fails verification, `open()` returns `Err(())`.
seal	`seal()` encrypts and authenticates a message `m` using a secret key `k` and a nonce `n`. It returns a ciphertext `c`.