[−][src]Module sodiumoxide::crypto::sign

Public-key signatures

Security model

The sign() function is designed to meet the standard notion of unforgeability for a public-key signature scheme under chosen-message attacks.

Selected primitive

crypto::sign::sign is ed25519, a signature scheme specified in Ed25519. This function is conjectured to meet the standard notion of unforgeability for a public-key signature scheme under chosen-message attacks.

Alternate primitives

crypto_signPUBLICKEYBYTESSECRETKEYBYTESBYTES
crypto_sign_ed25519326464
crypto_sign_edwards25519sha512batch326464

crypto_sign_edwards25519sha512batch is a prototype. It has been replaced with Ed25519 and is only kept here for compatibility reasons.

Example

use sodiumoxide::crypto::sign;
let (pk, sk) = sign::gen_keypair();
let data_to_sign = b"some data";
let signed_data = sign::sign(data_to_sign, &sk);
let verified_data = sign::verify(&signed_data, &pk).unwrap();
assert!(data_to_sign == &verified_data[..]);

Example (detached signatures)

use sodiumoxide::crypto::sign;
let (pk, sk) = sign::gen_keypair();
let data_to_sign = b"some data";
let signature = sign::sign_detached(data_to_sign, &sk);
assert!(sign::verify_detached(&signature, data_to_sign, &pk));

Re-exports

pub use self::ed25519::*;

Modules

ed25519

ed25519, a signature scheme specified in Ed25519. This function is conjectured to meet the standard notion of unforgeability for a public-key signature scheme under chosen-message attacks.