diff options
Diffstat (limited to 'common/cmd_aes.c')
-rw-r--r-- | common/cmd_aes.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/common/cmd_aes.c b/common/cmd_aes.c deleted file mode 100644 index 76da3efffe..0000000000 --- a/common/cmd_aes.c +++ /dev/null @@ -1,89 +0,0 @@ -/* - * Copyright (C) 2014 Marek Vasut <marex@denx.de> - * - * Command for en/de-crypting block of memory with AES-128-CBC cipher. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <command.h> -#include <environment.h> -#include <aes.h> -#include <malloc.h> -#include <asm/byteorder.h> -#include <linux/compiler.h> - -DECLARE_GLOBAL_DATA_PTR; - -/** - * do_aes() - Handle the "aes" command-line command - * @cmdtp: Command data struct pointer - * @flag: Command flag - * @argc: Command-line argument count - * @argv: Array of command-line arguments - * - * Returns zero on success, CMD_RET_USAGE in case of misuse and negative - * on error. - */ -static int do_aes(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) -{ - uint32_t key_addr, src_addr, dst_addr, len; - uint8_t *key_ptr, *src_ptr, *dst_ptr; - uint8_t key_exp[AES_EXPAND_KEY_LENGTH]; - uint32_t aes_blocks; - int enc; - - if (argc != 6) - return CMD_RET_USAGE; - - if (!strncmp(argv[1], "enc", 3)) - enc = 1; - else if (!strncmp(argv[1], "dec", 3)) - enc = 0; - else - return CMD_RET_USAGE; - - key_addr = simple_strtoul(argv[2], NULL, 16); - src_addr = simple_strtoul(argv[3], NULL, 16); - dst_addr = simple_strtoul(argv[4], NULL, 16); - len = simple_strtoul(argv[5], NULL, 16); - - key_ptr = (uint8_t *)key_addr; - src_ptr = (uint8_t *)src_addr; - dst_ptr = (uint8_t *)dst_addr; - - /* First we expand the key. */ - aes_expand_key(key_ptr, key_exp); - - /* Calculate the number of AES blocks to encrypt. */ - aes_blocks = DIV_ROUND_UP(len, AES_KEY_LENGTH); - - if (enc) - aes_cbc_encrypt_blocks(key_exp, src_ptr, dst_ptr, aes_blocks); - else - aes_cbc_decrypt_blocks(key_exp, src_ptr, dst_ptr, aes_blocks); - - return 0; -} - -/***************************************************/ -#ifdef CONFIG_SYS_LONGHELP -static char aes_help_text[] = - "enc key src dst len - Encrypt block of data $len bytes long\n" - " at address $src using a key at address\n" - " $key and store the result at address\n" - " $dst. The $len size must be multiple of\n" - " 16 bytes and $key must be 16 bytes long.\n" - "aes dec key src dst len - Decrypt block of data $len bytes long\n" - " at address $src using a key at address\n" - " $key and store the result at address\n" - " $dst. The $len size must be multiple of\n" - " 16 bytes and $key must be 16 bytes long."; -#endif - -U_BOOT_CMD( - aes, 6, 1, do_aes, - "AES 128 CBC encryption", - aes_help_text -); |