impl ChannelKeys {
pub fn new_from_seed(seed: &[u8; 32]) -> Result<ChannelKeys, secp256k1::Error> {
- let sha = Sha256::new();
let mut prk = [0; 32];
- hkdf_extract(sha, b"rust-lightning key gen salt", seed, &mut prk);
+ hkdf_extract(Sha256::new(), b"rust-lightning key gen salt", seed, &mut prk);
let secp_ctx = Secp256k1::new();
let mut okm = [0; 32];
- hkdf_expand(sha, &prk, b"rust-lightning funding key info", &mut okm);
+ hkdf_expand(Sha256::new(), &prk, b"rust-lightning funding key info", &mut okm);
let funding_key = SecretKey::from_slice(&secp_ctx, &okm)?;
- hkdf_expand(sha, &prk, b"rust-lightning revocation base key info", &mut okm);
+ hkdf_expand(Sha256::new(), &prk, b"rust-lightning revocation base key info", &mut okm);
let revocation_base_key = SecretKey::from_slice(&secp_ctx, &okm)?;
- hkdf_expand(sha, &prk, b"rust-lightning payment base key info", &mut okm);
+ hkdf_expand(Sha256::new(), &prk, b"rust-lightning payment base key info", &mut okm);
let payment_base_key = SecretKey::from_slice(&secp_ctx, &okm)?;
- hkdf_expand(sha, &prk, b"rust-lightning delayed payment base key info", &mut okm);
+ hkdf_expand(Sha256::new(), &prk, b"rust-lightning delayed payment base key info", &mut okm);
let delayed_payment_base_key = SecretKey::from_slice(&secp_ctx, &okm)?;
- hkdf_expand(sha, &prk, b"rust-lightning htlc base key info", &mut okm);
+ hkdf_expand(Sha256::new(), &prk, b"rust-lightning htlc base key info", &mut okm);
let htlc_base_key = SecretKey::from_slice(&secp_ctx, &okm)?;
- hkdf_expand(sha, &prk, b"rust-lightning channel close key info", &mut okm);
+ hkdf_expand(Sha256::new(), &prk, b"rust-lightning channel close key info", &mut okm);
let channel_close_key = SecretKey::from_slice(&secp_ctx, &okm)?;
- hkdf_expand(sha, &prk, b"rust-lightning channel monitor claim key info", &mut okm);
+ hkdf_expand(Sha256::new(), &prk, b"rust-lightning channel monitor claim key info", &mut okm);
let channel_monitor_claim_key = SecretKey::from_slice(&secp_ctx, &okm)?;
- hkdf_expand(sha, &prk, b"rust-lightning local commitment seed info", &mut okm);
+ hkdf_expand(Sha256::new(), &prk, b"rust-lightning local commitment seed info", &mut okm);
Ok(ChannelKeys {
funding_key: funding_key,