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fixed private_keys.rs

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This commit is contained in:
jonesmarvin8 2026-04-01 15:49:51 -04:00
parent d4e6626c0c
commit 2b920bfe55
1 changed files with 18 additions and 11 deletions
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29
nssa/src/signature/private_key.rs
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@ -1,5 +1,6 @@
use std::str::FromStr;
use k256::elliptic_curve::PrimeField as _;
use rand::{Rng as _, rngs::OsRng};
use risc0_zkvm::sha::{Impl, Sha256 as _};
use serde_with::{DeserializeFromStr, SerializeDisplay};
@ -67,20 +68,26 @@ impl PrivateKey {
return Err(NssaError::InvalidPrivateKey);
}
let sk = secp256k1::SecretKey::from_byte_array(*value).expect("Expect a valid secret key");
let pk = secp256k1::PublicKey::from_secret_key(&secp256k1::Secp256k1::new(), &sk);
let hashed: [u8; 32] = Impl::hash_bytes(&secp256k1::PublicKey::serialize(&pk))
.as_bytes()
.try_into()
.expect("Sha256 outputs a 32-byte array");
let hashed: [u8; 32] = Impl::hash_bytes(
crate::PublicKey::try_new(*value)
.expect("Expect a valid private key")
.value(),
)
.as_bytes()
.try_into()
.expect("Sha256 outputs a 32-byte array");
Self::try_new(
sk.add_tweak(
&secp256k1::Scalar::from_be_bytes(hashed).expect("Expect a valid secp256k1 Scalar"),
(k256::Scalar::from_repr(
(*value
.first_chunk::<32>()
.expect("hash_value is 64 bytes, must be safe to get first 32"))
.into(),
)
.expect("Expect a valid Scalar")
.secret_bytes(),
.expect("Expect a valid k256 scalar"))
.add(&k256::Scalar::from_repr((hashed).into()).expect("Expect a valid k256 scalar"))
.to_bytes()
.into(),
)
}
}