Crate xcbc_rsa_fdh[−][src]
Expand description
RSA-FDH is a is provably secure blind-signing signature scheme that uses RSA and a full domain hash.
This crate implements two RSA-FDH signature schemes:
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A regular signature scheme with Full Domain Hash (FDH) padding.
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A blind signature scheme that that supports blind-signing to keep the message being signed secret from the signer.
Regular signature scheme example
use rsa::{RsaPrivateKey, RsaPublicKey};
use sha2::{Sha256, Digest};
// Set up rng and message
let mut rng = rand::thread_rng();;
let message = b"NEVER GOING TO GIVE YOU UP";
// Create the keys
let signer_priv_key = RsaPrivateKey::new(&mut rng, 2048).unwrap();
let signer_pub_key: RsaPublicKey = signer_priv_key.clone().into();
// Apply a standard digest to the message
let mut hasher = Sha256::new();
hasher.update(message);
let digest = hasher.finalize();
// Obtain a signture
let signature = xcbc_rsa_fdh::sign::<Sha256, _>(&mut rng, &signer_priv_key, &digest).unwrap();
// Verify the signature
let ok = xcbc_rsa_fdh::verify::<Sha256, _>(&signer_pub_key, &digest, &signature);
assert!(ok.is_ok());Modules
A blind signature scheme that that supports blind-signing to keep the message being signed secret from the signer.
Enums
Error types