fix: safe cast

waku-org · Mar 6, 2024 · 5d5c5ca · 5d5c5ca
1 parent 7116127
commit 5d5c5ca
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/waku/waku_rln_relay/rln/wrappers.nim b/waku/waku_rln_relay/rln/wrappers.nim
@@ -163,7 +163,8 @@ proc poseidon*(data: seq[seq[byte]]): RlnRelayResult[array[32, byte]] =
 when defined(rln_v2):
   proc toLeaf*(rateCommitment: RateCommitment): RlnRelayResult[seq[byte]] =
     let idCommitment = rateCommitment.idCommitment
-    let userMessageLimit =  cast[array[32, byte]](rateCommitment.userMessageLimit)
+    var userMessageLimit: array[32, byte]
+    discard userMessageLimit.copyFrom(toBytes(rateCommitment.userMessageLimit, Endianness.littleEndian))
     let leaf = poseidon(@[@idCommitment, @userMessageLimit]).valueOr:
       return err("could not convert the rate commitment to a leaf")
     var retLeaf = newSeq[byte](leaf.len)