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jets: use explicitly sized byte arrays in ed jets

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This commit is contained in:
Matthew LeVan 2023-12-21 10:25:28 -05:00
parent 0f6c8b4659
commit 7155e9909a
1 changed files with 8 additions and 13 deletions
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21
rust/ares/src/jets/lock/ed.rs
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@ -2,6 +2,7 @@ use crate::interpreter::{Context, Error};
use crate::jets::bits::util::met;
use crate::jets::util::slot;
use crate::jets::{JetErr, Result};
use crate::mem::NockStack;
use crate::noun::{IndirectAtom, Noun, D, NO, YES};
use ares_crypto::ed25519::{ac_ed_puck, ac_ed_shar, ac_ed_sign, ac_ed_veri};
@ -19,10 +20,8 @@ pub fn jet_puck(context: &mut Context, subject: Noun) -> Result {
let mut sed_bytes = &mut [0u8; 32];
sed_bytes.copy_from_slice(&(sed.as_bytes())[0..32]);
let (mut pub_ida, pub_key) = IndirectAtom::new_raw_mut_bytes(stack, 32);
let tmp = &mut [0u8; 32];
ac_ed_puck(&mut sed_bytes, tmp);
pub_key.copy_from_slice(tmp);
let (mut pub_ida, pub_key) = IndirectAtom::new_raw_mut_bytearray::<32, NockStack>(stack);
ac_ed_puck(&mut sed_bytes, pub_key);
Ok(pub_ida.normalize_as_atom().as_noun())
}
@ -53,10 +52,8 @@ pub fn jet_shar(context: &mut Context, subject: Noun) -> Result {
public[0..pub_bytes.len()].copy_from_slice(pub_bytes);
secret[0..pub_bytes.len()].copy_from_slice(sec_bytes);
let (mut shar_ida, shar) = IndirectAtom::new_raw_mut_bytes(stack, 32);
let tmp = &mut [0u8; 32];
ac_ed_shar(public, secret, tmp);
shar.copy_from_slice(tmp);
let (mut shar_ida, shar) = IndirectAtom::new_raw_mut_bytearray::<32, NockStack>(stack);
ac_ed_shar(public, secret, shar);
Ok(shar_ida.normalize_as_atom().as_noun())
}
@ -78,11 +75,9 @@ pub fn jet_sign(context: &mut Context, subject: Noun) -> Result {
let msg_len = met(3, msg);
let message = &mut (msg.as_mut_bytes())[0..msg_len]; // drop trailing zeros
let (mut sig_ida, sig) = IndirectAtom::new_raw_mut_bytes(stack, 64);
let tmp = &mut [0u8; 64];
ac_ed_sign(message, seed, tmp);
tmp.reverse();
sig.copy_from_slice(tmp);
let (mut sig_ida, sig) = IndirectAtom::new_raw_mut_bytearray::<64, NockStack>(stack);
ac_ed_sign(message, seed, sig);
sig.reverse();
Ok(sig_ida.normalize_as_atom().as_noun())
}