diff --git a/vck-openid/src/commonMain/kotlin/at/asitplus/wallet/lib/oidvci/RqesWalletService.kt b/vck-openid/src/commonMain/kotlin/at/asitplus/wallet/lib/oidvci/RqesWalletService.kt
index 501a1e89..7ace2cc6 100644
--- a/vck-openid/src/commonMain/kotlin/at/asitplus/wallet/lib/oidvci/RqesWalletService.kt
+++ b/vck-openid/src/commonMain/kotlin/at/asitplus/wallet/lib/oidvci/RqesWalletService.kt
@@ -30,6 +30,7 @@ class RqesWalletService(
 
     /**
      * TODO: could also use [Document] instead of [CscDocumentDigest], also [credential_id] instead of [SAD]
+     * TODO implement [CredentialInfo] dataclass + hand over here
      */
     suspend fun createSignDocRequestParameters(rqesRequest: SignatureRequestParameters, sad: String): CSCSignatureRequestParameters =
         SignDocParameters(
@@ -44,6 +45,8 @@ class RqesWalletService(
             responseUri = this.redirectUrl, //TODO double check
         )
 
+
+    //TODO implement [CredentialInfo] dataclass + hand over here
     suspend fun createSignHashRequestParameters(
         rqesRequest: SignatureRequestParameters,
         credentialId: String,
@@ -51,7 +54,8 @@ class RqesWalletService(
     ): CSCSignatureRequestParameters = SignHashParameters(
         credentialId = credentialId,
         sad = sad,
-        hashes = rqesRequest.documentDigests.map { it.hash }
+        hashes = rqesRequest.documentDigests.map { it.hash },
+        signAlgoOid = X509SignatureAlgorithm.ES256.oid
     )
 
 }