From 4ab464bcaa8eb59bed757afcc4ad3fb290485638 Mon Sep 17 00:00:00 2001
From: Christopher <admin@gaion.chat>
Date: Wed, 28 Jan 2026 06:16:35 -0800
Subject: [PATCH] Fix crypto_generichash usage in useUserIdentity

Adds the missing third argument (null) to sodium.crypto_generichash to ensure correct hashing behavior when generating the salt for storage key derivation.
---
 src/lib/hooks/useUserIdentity.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib/hooks/useUserIdentity.ts b/src/lib/hooks/useUserIdentity.ts
index 73dd475..79a5f8e 100644
--- a/src/lib/hooks/useUserIdentity.ts
+++ b/src/lib/hooks/useUserIdentity.ts
@@ -144,7 +144,7 @@ export function useUserIdentity() {
         const saltString = `synapsis-chat-storage-${identity.did}`;
         // Generate a fixed-length salt from the DID
         // Hash to 32 bytes, then take first 16 bytes for salt
-        const fullHash = sodium.crypto_generichash(32, saltString);
+        const fullHash = sodium.crypto_generichash(32, saltString, null);
         const salt = fullHash.slice(0, sodium.crypto_pwhash_SALTBYTES);
         
         console.log('[Identity] Deriving storage key...');