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-rw-r--r--tests/test-ecdsa.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tests/test-ecdsa.c b/tests/test-ecdsa.c
index 816c80e..2cf2277 100644
--- a/tests/test-ecdsa.c
+++ b/tests/test-ecdsa.c
@@ -157,7 +157,7 @@ static int test_against_static_vectors(const ecdsa_tc_t * const tc)
set_next_random(tc->k, tc->k_len);
- uint8_t sig[tc->sig_len];
+ uint8_t sig[tc->sig_len + 4];
size_t sig_len;
if ((err = hal_ecdsa_sign(key1, tc->H, tc->H_len, sig, &sig_len, sizeof(sig))) != HAL_OK)