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//! 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](http://ed25519.cr.yp.to/). This function is conjectured to meet the
//! standard notion of unforgeability for a public-key signature scheme under
//! chosen-message attacks.
//!
//! # Alternate primitives
//!
//! --------------------------------------------------------------------------------
//! |crypto_sign                         | PUBLICKEYBYTES | SECRETKEYBYTES | BYTES |
//! |------------------------------------|----------------|----------------|-------|
//! |crypto_sign_ed25519                 | 32             | 64             | 64    |
//! |crypto_sign_edwards25519sha512batch | 32             | 64             | 64    |
//! --------------------------------------------------------------------------------
//!
//! 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));
//! ```
pub use self::ed25519::*;
pub mod ed25519;