debug: add support for printing the new EC raw format
Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
diff --git a/library/debug.c b/library/debug.c
index 3969616..1868cb7 100644
--- a/library/debug.c
+++ b/library/debug.c
@@ -194,6 +194,52 @@
}
#endif /* MBEDTLS_ECP_LIGHT */
+#if defined(MBEDTLS_PK_USE_PSA_EC_DATA)
+void mbedtls_debug_print_psa_ec(const mbedtls_ssl_context *ssl, int level,
+ const char *file, int line,
+ const char *text, const mbedtls_pk_context *pk)
+{
+ char str[DEBUG_BUF_SIZE];
+ mbedtls_mpi mpi;
+ const uint8_t *mpi_start;
+ size_t mpi_len;
+ int ret;
+
+ if (NULL == ssl ||
+ NULL == ssl->conf ||
+ NULL == ssl->conf->f_dbg ||
+ level > debug_threshold) {
+ return;
+ }
+
+ /* For the description of pk->pk_raw content please refer to the description
+ * psa_export_public_key() function. */
+ mpi_len = (pk->pub_raw_len - 1)/2;
+
+ /* X coordinate */
+ mbedtls_mpi_init(&mpi);
+ mpi_start = pk->pub_raw + 1;
+ ret = mbedtls_mpi_read_binary(&mpi, mpi_start, mpi_len);
+ if (ret != 0) {
+ return;
+ }
+ mbedtls_snprintf(str, sizeof(str), "%s(X)", text);
+ mbedtls_debug_print_mpi(ssl, level, file, line, str, &mpi);
+ mbedtls_mpi_free(&mpi);
+
+ /* Y coordinate */
+ mbedtls_mpi_init(&mpi);
+ mpi_start = mpi_start + mpi_len;
+ ret = mbedtls_mpi_read_binary(&mpi, mpi_start, mpi_len);
+ if (ret != 0) {
+ return;
+ }
+ mbedtls_snprintf(str, sizeof(str), "%s(Y)", text);
+ mbedtls_debug_print_mpi(ssl, level, file, line, str, &mpi);
+ mbedtls_mpi_free(&mpi);
+}
+#endif /* MBEDTLS_PK_USE_PSA_EC_DATA */
+
#if defined(MBEDTLS_BIGNUM_C)
void mbedtls_debug_print_mpi(const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
@@ -278,6 +324,11 @@
mbedtls_debug_print_ecp(ssl, level, file, line, name, items[i].value);
} else
#endif
+#if defined(MBEDTLS_PK_USE_PSA_EC_DATA)
+ if (items[i].type == MBEDTLS_PK_DEBUG_PSA_EC) {
+ mbedtls_debug_print_psa_ec(ssl, level, file, line, name, items[i].value);
+ } else
+#endif
{ debug_send_line(ssl, level, file, line,
"should not happen\n"); }
}