// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2021 Rockchip Electronics Co., Ltd
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*/
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#include <common.h>
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#include <crypto.h>
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static void dump_hash(const char *label, void *hash,
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u32 nbits, char *addr, int len)
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{
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char *buf;
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int i;
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printf("%s for %08lx ... %08lx ==> ", label, (ulong)addr, (ulong)addr + len);
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buf = hash;
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for (i = 0; i < BITS2BYTE(nbits); i++)
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printf("%02x", buf[i]);
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printf("\n\n");
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}
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static int do_crypto_csum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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sha_context csha_ctx;
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struct udevice *dev;
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char *input_data;
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int input_len;
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u8 hash[256];
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u32 cap;
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if (argc != 4)
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return CMD_RET_USAGE;
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if (!strcmp(argv[1], "md5"))
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cap = CRYPTO_MD5;
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else if (!strcmp(argv[1], "sha1"))
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cap = CRYPTO_SHA1;
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else if (!strcmp(argv[1], "sha256"))
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cap = CRYPTO_SHA256;
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else if (!strcmp(argv[1], "sha512"))
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cap = CRYPTO_SHA512;
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else
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return CMD_RET_USAGE;
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input_data = (char *)simple_strtoul(argv[2], NULL, 16);
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input_len = simple_strtoul(argv[3], NULL, 16);
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dev = crypto_get_device(cap);
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if (!dev) {
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printf("Can't find crypto device for %s\n", argv[1]);
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return -ENODEV;
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}
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if (cap == CRYPTO_MD5) {
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csha_ctx.algo = CRYPTO_MD5;
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csha_ctx.length = input_len;
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memset(hash, 0, sizeof(hash));
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crypto_sha_csum(dev, &csha_ctx, input_data, input_len, hash);
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dump_hash("md5", hash, crypto_algo_nbits(csha_ctx.algo),
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input_data, input_len);
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} else if (cap == CRYPTO_SHA1) {
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csha_ctx.algo = CRYPTO_SHA1;
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csha_ctx.length = input_len;
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memset(hash, 0, sizeof(hash));
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crypto_sha_csum(dev, &csha_ctx, input_data, input_len, hash);
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dump_hash("sha1", hash, crypto_algo_nbits(csha_ctx.algo),
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input_data, input_len);
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} else if (cap == CRYPTO_SHA256) {
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csha_ctx.algo = CRYPTO_SHA256;
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csha_ctx.length = input_len;
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memset(hash, 0, sizeof(hash));
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crypto_sha_csum(dev, &csha_ctx, input_data, input_len, hash);
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dump_hash("sha256", hash, crypto_algo_nbits(csha_ctx.algo),
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input_data, input_len);
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} else if (cap == CRYPTO_SHA512) {
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csha_ctx.algo = CRYPTO_SHA512;
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csha_ctx.length = input_len;
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memset(hash, 0, sizeof(hash));
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crypto_sha_csum(dev, &csha_ctx, input_data, input_len, hash);
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dump_hash("sha512", hash, crypto_algo_nbits(csha_ctx.algo),
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input_data, input_len);
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}
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return 0;
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}
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U_BOOT_CMD(
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crypto_sum, 4, 1, do_crypto_csum,
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"crypto checksum engine",
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"[md5|sha1|sha256|sha512] [addr] [length]"
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);
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