Fix passing wrong tag size to GCM finish
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
diff --git a/library/psa_crypto_aead.c b/library/psa_crypto_aead.c
index 5310702..6af25ec 100644
--- a/library/psa_crypto_aead.c
+++ b/library/psa_crypto_aead.c
@@ -628,7 +628,7 @@
status = mbedtls_to_psa_error(
mbedtls_gcm_finish( &operation->ctx.gcm,
ciphertext, ciphertext_size,
- tag, tag_size ) );
+ tag, operation->tag_length ) );
else
#endif /* MBEDTLS_PSA_BUILTIN_ALG_GCM */
#if defined(MBEDTLS_PSA_BUILTIN_ALG_CHACHA20_POLY1305)