Module sign

Message signatures.

The Signer allows for the computation of cryptographic signatures of data given a private key. The Verifier can then be used with the corresponding public key to verify the integrity and authenticity of that data given the signature.

Examples

Sign and verify data given an RSA keypair:

use boring::sign::{Signer, Verifier};
use boring::rsa::Rsa;
use boring::pkey::PKey;
use boring::hash::MessageDigest;

// Generate a keypair
let keypair = Rsa::generate(2048).unwrap();
let keypair = PKey::from_rsa(keypair).unwrap();

let data = b"hello, world!";
let data2 = b"hola, mundo!";

// Sign the data
let mut signer = Signer::new(MessageDigest::sha256(), &keypair).unwrap();
signer.update(data).unwrap();
signer.update(data2).unwrap();
let signature = signer.sign_to_vec().unwrap();

// Verify the data
let mut verifier = Verifier::new(MessageDigest::sha256(), &keypair).unwrap();
verifier.update(data).unwrap();
verifier.update(data2).unwrap();
assert!(verifier.verify(&signature).unwrap());

Structs

• RsaPssSaltlen
  Salt lengths that must be used with set_rsa_pss_saltlen.
• Signer
  A type which computes cryptographic signatures of data.
• Verifier