saymrwulf/curve25519-dalek-source
1
0
Fork 0
mirror of https://github.com/saymrwulf/curve25519-dalek-source.git synced 2026-09-06 20:41:14 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge pull request #41 from untoldwind/master

Browse source 
Ensure that all data of StaticSecret is cleared on drop
This commit is contained in:
Henry de Valence 2019-04-23 10:08:40 -07:00 committed by GitHub
commit 1cc37a1eda
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
src/x25519.rs
View file

@ -164,14 +164,12 @@ impl SharedSecret {
/// # Returns /// # Returns
/// ///
/// A `Scalar`. /// A `Scalar`.
fn clamp_scalar(scalar: [u8; 32]) -> Scalar { fn clamp_scalar(mut scalar: [u8; 32]) -> Scalar {
let mut s: [u8; 32] = scalar.clone(); scalar[0] &= 248;
scalar[31] &= 127;
scalar[31] |= 64;
s[0] &= 248; Scalar::from_bits(scalar)
s[31] &= 127;
s[31] |= 64;
Scalar::from_bits(s)
} }
/// The bare, byte-oriented x25519 function, exactly as specified in RFC7748. /// The bare, byte-oriented x25519 function, exactly as specified in RFC7748.