> -----Original Message-----
> From: Arek Kusztal <arkadiuszx.kusz...@intel.com>
> Sent: Wednesday, July 17, 2019 12:23 AM
> To: dev@dpdk.org
> Cc: akhil.go...@nxp.com; fiona.tr...@intel.com; Shally Verma
> <shal...@marvell.com>; Arek Kusztal <arkadiuszx.kusz...@intel.com>
> Subject: [EXT] [PATCH v3 10/11] test: add pkcs1_5 padding simulation
>
> External Email
>
> ----------------------------------------------------------------------
> This patch adds function to simulate pkcs1_5 padding, it serves nothing else
> than example. It provides no security and should not be used in security
> context.
>
> Signed-off-by: Arek Kusztal <arkadiuszx.kusz...@intel.com>
> ---
[Shally] Sorry did not get context of this test. Is it to describe PADDING_NONE?
> app/test/test_cryptodev_asym_util.h | 54
> +++++++++++++++++++++++++++++++++++++
> 1 file changed, 54 insertions(+)
>
> diff --git a/app/test/test_cryptodev_asym_util.h
> b/app/test/test_cryptodev_asym_util.h
> index b3d9fb4..f984166 100644
> --- a/app/test/test_cryptodev_asym_util.h
> +++ b/app/test/test_cryptodev_asym_util.h
> @@ -1,10 +1,64 @@
> /* SPDX-License-Identifier: BSD-3-Clause
> * Copyright(c) 2018 Cavium Networks
> + * Copyright (c) 2019 Intel Corporation
> */
>
> #ifndef TEST_CRYPTODEV_ASYM_TEST_UTIL_H__ #define
> TEST_CRYPTODEV_ASYM_TEST_UTIL_H__
>
> +/*
> + * Two functions below simulate pkcs 1.5 padding and serves only as an
> +example,
> + * both offer no security.
> + */
> +static inline int rsa_simulate_pkcs1_5_padding(int op, uint8_t *p,
> + int key_size, const uint8_t *src, int len) {
> +
> + int ps_len;
> +
> + if (len > key_size - 11)
> + return -1;
> + ps_len = key_size - len - 3;
> +
> + *(p++) = 0;
> + *(p++) = op ? 1 : 2;
> + if (op) {
> + while (ps_len--)
> + *(p++) = 0xFF;
> + } else {
> + while (ps_len--) {
> + *p = (uint8_t)rand();
> + *p ^= !(*p);
> + p++;
> + }
> + }
> +
> + *(p++) = 0;
> + memcpy(p, src, len);
> +
> + return 0;
> +}
> +
> +static inline int rsa_simulate_strip_pkcs1_5_padding(uint8_t *src,
> + int key_size) {
> + uint8_t tmp[key_size], *orig_src = src;
> + int i = 1;
> + ++src;
> + while (*(src) && i < key_size) {
> + ++i;
> + ++src;
> + }
> + if (i == key_size)
> + return -1;
> +
> + ++i;
> + ++src;
> +
> + memcpy(tmp, src, key_size - i);
> + memcpy(orig_src, tmp, key_size - i);
> + return key_size - i;
> +}
> +
> +
> /* Below Apis compare resulted buffer to original test vector */
>
> static inline int rsa_verify(struct rsa_test_data *rsa_param,
> --
> 2.1.0
