Facilitate corruption in ML-DSA PCT

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/27436)

diff --git a/providers/implementations/keymgmt/ml_dsa_kmgmt.c b/providers/implementations/keymgmt/ml_dsa_kmgmt.c
index 9105847e6dc79a29443efdb1d98669a219a1f77c..ee5463caec86c5afff32a148bafca2b839f7cc72 100644 (file)
--- a/providers/implementations/keymgmt/ml_dsa_kmgmt.c
+++ b/providers/implementations/keymgmt/ml_dsa_kmgmt.c
@@ -84,6 +84,8 @@ static int ml_dsa_pairwise_test(const ML_DSA_KEY *key)
                          sig, &sig_len, sizeof(sig)) <= 0)
         goto err;
 
+    OSSL_SELF_TEST_oncorrupt_byte(st, sig);
+
     if (ossl_ml_dsa_verify(key, 0, msg, sizeof(msg), NULL, 0, 0,
                            sig, sig_len) <= 0)
         goto err;