43     ctx->pk_info = NULL;  in mbedtls_pk_init()
44     ctx->pk_ctx = NULL;  in mbedtls_pk_init()
61     if (ctx == NULL) {  in mbedtls_pk_free()
65     if ((ctx->pk_info != NULL) && (ctx->pk_info->ctx_free_func != NULL)) {  in mbedtls_pk_free()
72     if ((ctx->pk_info != NULL) && (ctx->pk_info->type != MBEDTLS_PK_OPAQUE)) {  in mbedtls_pk_free()
86     ctx->pk_info = NULL;  in mbedtls_pk_restart_init()
87     ctx->rs_ctx = NULL;  in mbedtls_pk_restart_init()
95     if (ctx == NULL || ctx->pk_info == NULL ||  in mbedtls_pk_restart_free()
96         ctx->pk_info->rs_free_func == NULL) {  in mbedtls_pk_restart_free()
102     ctx->pk_info = NULL;  in mbedtls_pk_restart_free()
103     ctx->rs_ctx = NULL;  in mbedtls_pk_restart_free()
129             return NULL;  in mbedtls_pk_info_from_type()
138     if (info == NULL || ctx->pk_info != NULL) {  in mbedtls_pk_setup()
142     if ((info->ctx_alloc_func != NULL) &&  in mbedtls_pk_setup()
143         ((ctx->pk_ctx = info->ctx_alloc_func()) == NULL)) {  in mbedtls_pk_setup()
159     const mbedtls_pk_info_t *info = NULL;  in mbedtls_pk_setup_opaque()
163     if (ctx == NULL || ctx->pk_info != NULL) {  in mbedtls_pk_setup_opaque()
203     if (ctx->pk_info != NULL) {  in mbedtls_pk_setup_rsa_alt()
207     if ((ctx->pk_ctx = info->ctx_alloc_func()) == NULL) {  in mbedtls_pk_setup_rsa_alt()
229     /* A context with null pk_info is not set up yet and can't do anything.  in mbedtls_pk_can_do()
230      * For backward compatibility, also accept NULL instead of a context  in mbedtls_pk_can_do()
232     if (ctx == NULL || ctx->pk_info == NULL) {  in mbedtls_pk_can_do()
248     /* A context with null pk_info is not set up yet and can't do anything.  in mbedtls_pk_can_do_ext()
249      * For backward compatibility, also accept NULL instead of a context  in mbedtls_pk_can_do_ext()
251     if (ctx == NULL || ctx->pk_info == NULL) {  in mbedtls_pk_can_do_ext()
746     unsigned char *key_data = NULL;  in import_public_into_psa()
873     if (pk == NULL) {  in copy_from_psa()
1016     if (ctx == NULL || ctx->pk_info != NULL) {  in pk_restart_setup()
1021     if (info->rs_alloc_func == NULL || info->rs_free_func == NULL) {  in pk_restart_setup()
1025     if ((ctx->rs_ctx = info->rs_alloc_func()) == NULL) {  in pk_restart_setup()
1044     if ((md_alg != MBEDTLS_MD_NONE || hash_len != 0) && hash == NULL) {  in mbedtls_pk_verify_restartable()
1048     if (ctx->pk_info == NULL ||  in mbedtls_pk_verify_restartable()
1055     if (rs_ctx != NULL &&  in mbedtls_pk_verify_restartable()
1057         ctx->pk_info->verify_rs_func != NULL) {  in mbedtls_pk_verify_restartable()
1077     if (ctx->pk_info->verify_func == NULL) {  in mbedtls_pk_verify_restartable()
1093                                          sig, sig_len, NULL);  in mbedtls_pk_verify()
1104     if ((md_alg != MBEDTLS_MD_NONE || hash_len != 0) && hash == NULL) {  in mbedtls_pk_verify_ext()
1108     if (ctx->pk_info == NULL) {  in mbedtls_pk_verify_ext()
1118         if (options != NULL) {  in mbedtls_pk_verify_ext()
1126      * below would return a NULL pointer. */  in mbedtls_pk_verify_ext()
1141     if (options == NULL) {  in mbedtls_pk_verify_ext()
1236     if ((md_alg != MBEDTLS_MD_NONE || hash_len != 0) && hash == NULL) {  in mbedtls_pk_sign_restartable()
1240     if (ctx->pk_info == NULL || pk_hashlen_helper(md_alg, &hash_len) != 0) {  in mbedtls_pk_sign_restartable()
1246     if (rs_ctx != NULL &&  in mbedtls_pk_sign_restartable()
1248         ctx->pk_info->sign_rs_func != NULL) {  in mbedtls_pk_sign_restartable()
1270     if (ctx->pk_info->sign_func == NULL) {  in mbedtls_pk_sign_restartable()
1290                                        f_rng, p_rng, NULL);  in mbedtls_pk_sign()
1304     if (ctx->pk_info == NULL) {  in mbedtls_pk_sign_ext()
1379     if (ctx->pk_info == NULL) {  in mbedtls_pk_decrypt()
1383     if (ctx->pk_info->decrypt_func == NULL) {  in mbedtls_pk_decrypt()
1399     if (ctx->pk_info == NULL) {  in mbedtls_pk_encrypt()
1403     if (ctx->pk_info->encrypt_func == NULL) {  in mbedtls_pk_encrypt()
1419     if (pub->pk_info == NULL ||  in mbedtls_pk_check_pair()
1420         prv->pk_info == NULL) {  in mbedtls_pk_check_pair()
1424     if (f_rng == NULL) {  in mbedtls_pk_check_pair()
1428     if (prv->pk_info->check_pair_func == NULL) {  in mbedtls_pk_check_pair()
1453     /* For backward compatibility, accept NULL or a context that  in mbedtls_pk_get_bitlen()
1455     if (ctx == NULL || ctx->pk_info == NULL) {  in mbedtls_pk_get_bitlen()
1467     if (ctx->pk_info == NULL) {  in mbedtls_pk_debug()
1471     if (ctx->pk_info->debug_func == NULL) {  in mbedtls_pk_debug()
1484     if (ctx == NULL || ctx->pk_info == NULL) {  in mbedtls_pk_get_name()
1496     if (ctx == NULL || ctx->pk_info == NULL) {  in mbedtls_pk_get_type()