commit 26b807dae8512ecbca9718e2d237ea14cd8f538a
author Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> Thu Sep 19 10:45:14 2019 +0200
committer Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com> Thu Sep 19 10:45:14 2019 +0200
tree 8a31e201190e8b476f443f65c7be9a3b2973b9a6
parent f4afbf926efe2bc923b1f48cae21ce158c2986d5

Fix bug in pkwrite with TinyCrypt but no RSA

This is pre-existing, fixing is required to make a newly added test pass.

library/pkwrite.c

diff --git a/library/pkwrite.c b/library/pkwrite.c
index bf4ce73..c95facd 100644
--- a/library/pkwrite.c
+++ b/library/pkwrite.c
@@ -524,9 +524,19 @@
 
 #else /* MBEDTLS_ECP_C */
 
+#if defined(MBEDTLS_USE_TINYCRYPT)
+
+/* see above, replacing ECP_MAX_BYTES with 32 (256-bit) */
+#define ECP_PUB_DER_MAX_BYTES   30 + 2 * 32
+#define ECP_PRV_DER_MAX_BYTES   29 + 3 * 32
+
+#else /* MBEDTLS_USE_TINYCRYPT */
+
 #define ECP_PUB_DER_MAX_BYTES   0
 #define ECP_PRV_DER_MAX_BYTES   0
 
+#endif /* MBEDTLS_USE_TINYCRYPT */
+
 #endif /* MBEDTLS_ECP_C */
 
 #define PUB_DER_MAX_BYTES   RSA_PUB_DER_MAX_BYTES > ECP_PUB_DER_MAX_BYTES ? \