Custom suite ids flag

davxy · Apr 15, 2024 · 548ebaf · 548ebaf
1 parent 55a174b
commit 548ebaf
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/src/lib.rs b/src/lib.rs
@@ -47,6 +47,9 @@ pub enum Error {
     VerificationFailure,
 }
 
+/// Flag to identify custom suites (i.e. not specified by RFC-9381).
+pub const CUSTOM_SUITE_ID_FLAG: u8 = 0x80;
+
 /// Defines a cipher suite.
 ///
 /// This trait can be used to implement a VRF which follows the guidelines

diff --git a/src/suites/bandersnatch.rs b/src/suites/bandersnatch.rs
@@ -62,7 +62,7 @@ pub struct BandersnatchSha512;
 suite_types!(BandersnatchSha512);
 
 impl Suite for BandersnatchSha512 {
-    const SUITE_ID: u8 = 0x33;
+    const SUITE_ID: u8 = CUSTOM_SUITE_ID_FLAG | 0x03;
     const CHALLENGE_LEN: usize = 32;
 
     type Affine = ark_ed_on_bls12_381_bandersnatch::SWAffine;