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New padding rule for RPX (#236)

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* feat: new padding rule for RPX
* fix: documentation on security
This commit is contained in:
Al-Kindi-0
2024-01-17 23:14:09 +01:00
committed by Bobbin Threadbare
parent 260592f8e7
commit c9ab3beccc
2 changed files with 28 additions and 48 deletions
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10
src/hash/rescue/rpo/mod.rs
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@@ -27,7 +27,7 @@ mod tests;
/// * Number of founds: 7.
/// * S-Box degree: 7.
///
/// The above parameters target 128-bit security level. The digest consists of four field elements
/// The above parameters target a 128-bit security level. The digest consists of four field elements
/// and it can be serialized into 32 bytes (256 bits).
///
/// ## Hash output consistency
@@ -55,13 +55,7 @@ mod tests;
pub struct Rpo256();
impl Hasher for Rpo256 {
/// Rpo256 collision resistance is the same as the security level, that is 128-bits.
///
/// #### Collision resistance
///
/// However, our setup of the capacity registers might drop it to 126.
///
/// Related issue: [#69](https://github.com/0xPolygonMiden/crypto/issues/69)
/// Rpo256 collision resistance is 128-bits.
const COLLISION_RESISTANCE: u32 = 128;
type Digest = RpoDigest;