0xalivecow/kauma
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Merge refactoring changes #34

Merged
0xalivecow merged 4 commits from dev into main 2024-12-23 09:31:55 +00:00
Conversation 0 Commits 4 Files changed 11 -33
1 changed files with 0 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files
Showing only changes of commit 0a573d84da - Show all commits

33
src/utils/poly.rs
View file

@ -591,39 +591,6 @@ pub fn gfmul(poly_a: &Vec<u8>, poly_b: &Vec<u8>, semantic: &str) -> Result<Vec<u
Ok(result.0)
}
pub fn bgfmul(poly_a: &Vec<u8>, poly_b: &Vec<u8>, semantic: &str) -> Result<Vec<u8>> {
let red_poly_bytes: BigUint = BigUint::from_slice(&[
0x87, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 0x01,
]);
let mut poly1: BigUint = BigUint::from_le_bytes(poly_a);
let mut poly2: BigUint = BigUint::from_le_bytes(poly_b);
let mut result: BigUint = BigUint::zero();
if (&poly2 & (BigUint::one() << 127)) == BigUint::one() {
result = &result ^ &poly1;
}
poly2 = &poly2 >> 1;
while &poly2 != &BigUint::zero() {
poly1 = &poly1 << 1;
if (&poly1 & (BigUint::one() << 127)) == BigUint::one() {
poly1 = &poly1 ^ &red_poly_bytes;
}
if &poly2 & BigUint::one() == BigUint::one() {
result = &result ^ &poly1;
}
poly2 = &poly2 >> 1;
}
Ok(result.to_bytes_le())
}
pub fn convert_gcm_to_xex(gcm_poly: Vec<u8>) -> Result<Vec<u8>> {
let xex_poly = gcm_poly
.into_iter()