commit cf81f6997759decd200a8953cd9d3f46f3de447a
author Valerio Setti <valerio.setti@nordicsemi.no> Tue Feb 06 16:57:12 2024 +0100
committer Valerio Setti <valerio.setti@nordicsemi.no> Tue Feb 06 16:57:12 2024 +0100
tree c07fb111b16cc7de1c2efe505b215fbc582334dc
parent 6269f3baf497e3a9b8d5e9d8d40d8a9c4af144f6

psa_util: smarter raw length check in mbedtls_ecdsa_raw_to_der()

Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>

library/psa_util.c

diff --git a/library/psa_util.c b/library/psa_util.c
index 674f21b..970274e 100644
--- a/library/psa_util.c
+++ b/library/psa_util.c
@@ -413,7 +413,7 @@
     unsigned char *p = der + der_size;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    if ((raw_len < 2 * coordinate_len) || (raw_len > 2 * coordinate_len)) {
+    if (raw_len != (2 * coordinate_len)) {
         return MBEDTLS_ERR_ASN1_INVALID_DATA;
     }