API changes for ML-KEM

- Get rid of CBB/CBS usage in public api
- Make void functions return int that can fail if malloc fails.

Along with some fallout and resulting bikeshedding in the regress tests.

ok jsing@, tb@

1 files changed, 3 insertions, 3 deletions

diff --git a/src/lib/libcrypto/mlkem/mlkem_internal.h b/src/lib/libcrypto/mlkem/mlkem_internal.h
index d3f325932f..7a51197c36 100644
--- a/src/lib/libcrypto/mlkem/mlkem_internal.h
+++ b/src/lib/libcrypto/mlkem/mlkem_internal.h
@@ -1,4 +1,4 @@
-/*      $OpenBSD: mlkem_internal.h,v 1.4 2024/12/19 23:52:26 tb Exp $ */
+/*      $OpenBSD: mlkem_internal.h,v 1.5 2025/05/19 06:47:40 beck Exp $ */
 /*
  * Copyright (c) 2023, Google Inc.
  *
@@ -41,7 +41,7 @@ __BEGIN_HIDDEN_DECLS
  * regular callers should use the non-deterministic |MLKEM_generate_key|
  * directly.
  */
-void MLKEM768_generate_key_external_entropy(
+int MLKEM768_generate_key_external_entropy(
     uint8_t out_encoded_public_key[MLKEM768_PUBLIC_KEY_BYTES],
     struct MLKEM768_private_key *out_private_key,
     const uint8_t entropy[MLKEM_SEED_BYTES]);
@@ -80,7 +80,7 @@ void MLKEM768_encap_external_entropy(
  * regular callers should use the non-deterministic |MLKEM_generate_key|
  * directly.
  */
-void MLKEM1024_generate_key_external_entropy(
+int MLKEM1024_generate_key_external_entropy(
     uint8_t out_encoded_public_key[MLKEM1024_PUBLIC_KEY_BYTES],
     struct MLKEM1024_private_key *out_private_key,
     const uint8_t entropy[MLKEM_SEED_BYTES]);