Files

689 lines
17 KiB
C

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright (c) 2019 Amlogic, Inc. All rights reserved.
*/
#include <common.h>
#include <command.h>
#include <u-boot/sha256.h>
#include <uboot_aes.h>
#include <amlogic/aml_crypto.h>
#include <stdlib.h>
#include <compiler.h>
#define LB32_MASK 0x00000001
#define LB64_MASK 0x0000000000000001
#define L64_MASK 0x00000000ffffffff
#define H64_MASK 0xffffffff00000000
/* Initial Permutation Table */
static char IP[] = {
58, 50, 42, 34, 26, 18, 10, 2,
60, 52, 44, 36, 28, 20, 12, 4,
62, 54, 46, 38, 30, 22, 14, 6,
64, 56, 48, 40, 32, 24, 16, 8,
57, 49, 41, 33, 25, 17, 9, 1,
59, 51, 43, 35, 27, 19, 11, 3,
61, 53, 45, 37, 29, 21, 13, 5,
63, 55, 47, 39, 31, 23, 15, 7
};
/* Inverse Initial Permutation Table */
static char PI[] = {
40, 8, 48, 16, 56, 24, 64, 32,
39, 7, 47, 15, 55, 23, 63, 31,
38, 6, 46, 14, 54, 22, 62, 30,
37, 5, 45, 13, 53, 21, 61, 29,
36, 4, 44, 12, 52, 20, 60, 28,
35, 3, 43, 11, 51, 19, 59, 27,
34, 2, 42, 10, 50, 18, 58, 26,
33, 1, 41, 9, 49, 17, 57, 25
};
/*Expansion table */
static char E[] = {
32, 1, 2, 3, 4, 5,
4, 5, 6, 7, 8, 9,
8, 9, 10, 11, 12, 13,
12, 13, 14, 15, 16, 17,
16, 17, 18, 19, 20, 21,
20, 21, 22, 23, 24, 25,
24, 25, 26, 27, 28, 29,
28, 29, 30, 31, 32, 1
};
/* Post S-Box permutation */
static char P[] = {
16, 7, 20, 21,
29, 12, 28, 17,
1, 15, 23, 26,
5, 18, 31, 10,
2, 8, 24, 14,
32, 27, 3, 9,
19, 13, 30, 6,
22, 11, 4, 25
};
/* The S-Box tables */
static char S[8][64] = {{
/* S1 */
14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7,
0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0,
15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13
}, {
/* S2 */
15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10,
3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15,
13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9
}, {
/* S3 */
10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12
}, {
/* S4 */
7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15,
13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14
}, {
/* S5 */
2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3
}, {
/* S6 */
12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13
}, {
/* S7 */
4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12
}, {
/* S8 */
13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11
}};
/* Permuted Choice 1 Table */
static char PC1[] = {
57, 49, 41, 33, 25, 17, 9,
1, 58, 50, 42, 34, 26, 18,
10, 2, 59, 51, 43, 35, 27,
19, 11, 3, 60, 52, 44, 36,
63, 55, 47, 39, 31, 23, 15,
7, 62, 54, 46, 38, 30, 22,
14, 6, 61, 53, 45, 37, 29,
21, 13, 5, 28, 20, 12, 4
};
/* Permuted Choice 2 Table */
static char PC2[] = {
14, 17, 11, 24, 1, 5,
3, 28, 15, 6, 21, 10,
23, 19, 12, 4, 26, 8,
16, 7, 27, 20, 13, 2,
41, 52, 31, 37, 47, 55,
30, 40, 51, 45, 33, 48,
44, 49, 39, 56, 34, 53,
46, 42, 50, 36, 29, 32
};
/* Iteration Shift Array */
static char iteration_shift[] = {
/* 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 */
1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1
};
/*
* The DES function
* input: 64 bit message
* key: 64 bit key for encryption/decryption
* mode: 'e' = encryption; 'd' = decryption
*/
static uint64_t des(uint64_t input, uint64_t key, char mode)
{
int i, j;
/* 8 bits */
char row, column;
/* 28 bits */
uint32_t C = 0;
uint32_t D = 0;
/* 32 bits */
uint32_t L = 0;
uint32_t R = 0;
uint32_t s_output = 0;
uint32_t f_function_res = 0;
uint32_t temp = 0;
/* 48 bits */
uint64_t sub_key[16] = {0};
uint64_t s_input = 0;
/* 56 bits */
uint64_t permuted_choice_1 = 0;
uint64_t permuted_choice_2 = 0;
/* 64 bits */
uint64_t init_perm_res = 0;
uint64_t inv_init_perm_res = 0;
uint64_t pre_output = 0;
/* initial permutation */
for (i = 0; i < 64; i++) {
init_perm_res <<= 1;
init_perm_res |= (input >> (64 - IP[i])) & LB64_MASK;
}
L = (uint32_t)(init_perm_res >> 32) & L64_MASK;
R = (uint32_t)init_perm_res & L64_MASK;
/* initial key schedule calculation */
for (i = 0; i < 56; i++) {
permuted_choice_1 <<= 1;
permuted_choice_1 |= (key >> (64 - PC1[i])) & LB64_MASK;
}
C = (uint32_t)((permuted_choice_1 >> 28) & 0x000000000fffffff);
D = (uint32_t)(permuted_choice_1 & 0x000000000fffffff);
/* Calculation of the 16 keys */
for (i = 0; i < 16; i++) {
/* key schedule */
// shifting Ci and Di
for (j = 0; j < iteration_shift[i]; j++) {
C = (0x0fffffff & (C << 1)) | (0x00000001 & (C >> 27));
D = (0x0fffffff & (D << 1)) | (0x00000001 & (D >> 27));
}
permuted_choice_2 = 0;
permuted_choice_2 = (((uint64_t)C) << 28) | (uint64_t)D;
sub_key[i] = 0;
for (j = 0; j < 48; j++) {
sub_key[i] <<= 1;
sub_key[i] |= (permuted_choice_2 >> (56 - PC2[j])) & LB64_MASK;
}
}
for (i = 0; i < 16; i++) {
/* f(R,k) function */
s_input = 0;
for (j = 0; j < 48; j++) {
s_input <<= 1;
s_input |= (uint64_t)((R >> (32 - E[j])) & LB32_MASK);
}
/*
* Encryption/Decryption
* XORing expanded Ri with Ki
*/
if (mode == 'd') {
// decryption
s_input = s_input ^ sub_key[15 - i];
} else {
// encryption
s_input = s_input ^ sub_key[i];
}
/* S-Box Tables */
for (j = 0; j < 8; j++) {
// 00 00 RCCC CR00 00 00 00 00 00 s_input
// 00 00 1000 0100 00 00 00 00 00 row mask
// 00 00 0111 1000 00 00 00 00 00 column mask
row = (char)((s_input & (0x0000840000000000 >> 6 * j)) >> (42 - 6 * j));
row = (row >> 4) | (row & 0x01);
column = (char)((s_input & (0x0000780000000000 >> 6 * j)) >> (43 - 6 * j));
s_output <<= 4;
s_output |= (uint32_t)(S[j][16 * row + column] & 0x0f);
}
f_function_res = 0;
for (j = 0; j < 32; j++) {
f_function_res <<= 1;
f_function_res |= (s_output >> (32 - P[j])) & LB32_MASK;
}
temp = R;
R = L ^ f_function_res;
L = temp;
}
pre_output = (((uint64_t)R) << 32) | (uint64_t)L;
/* inverse initial permutation */
for (i = 0; i < 64; i++) {
inv_init_perm_res <<= 1;
inv_init_perm_res |= (pre_output >> (64 - PI[i])) & LB64_MASK;
}
return inv_init_perm_res;
}
static void gen_rand(uint8_t *out, int size)
{
uint32_t i = 0;
uint32_t r = 0;
for (i = 0; i < size / sizeof(unsigned int); i++) {
r = rand();
memcpy(&out[i * sizeof(uint32_t)], &r, sizeof(uint32_t));
}
}
static void hexdump(unsigned char *buf, int len)
{
int i;
for (i = 0; i < len; i++) {
if ((i % 16) == 0)
printf("\n");
printf("%02x ", buf[i]);
}
printf("\n");
}
#ifdef CONFIG_AES
static int aes_check_test_128ECB(uint32_t count)
{
uint8_t dst[16] = {0};
uint8_t key[16] = {0};
uint8_t plain[16] = {0};
uint8_t cipher[16] = {0};
u8 key_exp[AES256_EXPAND_KEY_LENGTH];
uint32_t i = 0;
srand(get_ticks() + rand());
for (i = 0; i < count; i++) {
gen_rand(key, sizeof(key));
gen_rand(plain, sizeof(plain));
/* First we expand the key. */
aes_expand_key(key, sizeof(key), key_exp);
aes_ecb_encrypt_blocks(AES128_KEY_LENGTH, key_exp, plain, cipher,
sizeof(plain) / AES_BLOCK_LENGTH);
aml_aes_ecb_enc(key, sizeof(key), plain,
dst, sizeof(plain));
if (memcmp(dst, cipher, sizeof(cipher))) {
printf("CHECKING AES 128 ECB ENC round: %d ", i);
printf("FAIL\n");
printf("key:");
hexdump(key, sizeof(key));
printf("plain:");
hexdump(plain, sizeof(plain));
printf("cipher:");
hexdump(cipher, sizeof(cipher));
printf("output:");
hexdump(dst, sizeof(dst));
return 1;
}
aml_aes_ecb_dec(key, sizeof(key), cipher,
dst, sizeof(cipher));
if (memcmp(dst, plain, sizeof(plain))) {
printf("CHECKING AES 128 ECB DEC round: %d ", i);
printf("FAIL\n");
printf("key:");
hexdump(key, sizeof(key));
printf("plain:");
hexdump(plain, sizeof(plain));
printf("cipher:");
hexdump(cipher, sizeof(cipher));
printf("output:");
hexdump(dst, sizeof(dst));
return 1;
}
}
return 0;
}
static int aes_check_test_256ECB(uint32_t count)
{
uint8_t dst[16] = {0};
uint8_t key[32] = {0};
uint8_t plain[16] = {0};
uint8_t cipher[16] = {0};
u8 key_exp[AES256_EXPAND_KEY_LENGTH];
uint32_t i = 0;
srand(get_ticks() + rand());
for (i = 0; i < count; i++) {
gen_rand(key, sizeof(key));
gen_rand(plain, sizeof(plain));
/* First we expand the key. */
aes_expand_key(key, sizeof(key), key_exp);
aes_ecb_encrypt_blocks(AES256_KEY_LENGTH, key_exp, plain, cipher,
sizeof(plain) / AES_BLOCK_LENGTH);
aml_aes_ecb_enc(key, sizeof(key), plain,
dst, sizeof(plain));
if (memcmp(dst, cipher, sizeof(cipher))) {
printf("CHECKING AES 256 ECB ENC round: %d ", i);
printf("FAIL\n");
printf("key:");
hexdump(key, sizeof(key));
printf("plain:");
hexdump(plain, sizeof(plain));
printf("cipher:");
hexdump(cipher, sizeof(cipher));
printf("output:");
hexdump(dst, sizeof(dst));
return 1;
}
aml_aes_ecb_dec(key, sizeof(key), cipher,
dst, sizeof(cipher));
if (memcmp(dst, plain, sizeof(plain))) {
printf("CHECKING AES 256 ECB DEC round: %d ", i);
printf("FAIL\n");
printf("key:");
hexdump(key, sizeof(key));
printf("plain:");
hexdump(plain, sizeof(plain));
printf("cipher:");
hexdump(cipher, sizeof(cipher));
printf("output:");
hexdump(dst, sizeof(dst));
return 1;
}
}
return 0;
}
static int aes_check_test_128CBC(uint32_t count)
{
uint8_t dst[16] = {0};
uint8_t key[16] = {0};
uint8_t plain[16] = {0};
uint8_t cipher[16] = {0};
uint8_t iv[16] = {0};
u8 key_exp[AES256_EXPAND_KEY_LENGTH];
uint32_t i = 0;
srand(get_ticks() + rand());
for (i = 0; i < count; i++) {
gen_rand(key, sizeof(key));
gen_rand(plain, sizeof(plain));
gen_rand(iv, sizeof(iv));
/* First we expand the key. */
aes_expand_key(key, sizeof(key), key_exp);
aes_cbc_encrypt_blocks(AES128_KEY_LENGTH, key_exp, iv,
plain, cipher, sizeof(plain) / AES_BLOCK_LENGTH);
aml_aes_cbc_enc(key, sizeof(key),
plain,
dst, iv, sizeof(plain));
if (memcmp(dst, cipher, sizeof(cipher))) {
printf("CHECKING AES 128 CBC ENC round: %d ", i);
printf("FAIL\n");
printf("key:");
hexdump(key, sizeof(key));
printf("iv:");
hexdump(iv, sizeof(iv));
printf("plain:");
hexdump(plain, sizeof(plain));
printf("cipher:");
hexdump(cipher, sizeof(cipher));
printf("output:");
hexdump(dst, sizeof(dst));
return 1;
}
aml_aes_cbc_dec(key, sizeof(key),
cipher,
dst, iv, sizeof(cipher));
if (memcmp(dst, plain, sizeof(plain))) {
printf("CHECKING AES 128 CBC DEC round: %d ", i);
printf("FAIL\n");
printf("key:");
hexdump(key, sizeof(key));
printf("iv:");
hexdump(iv, sizeof(iv));
printf("plain:");
hexdump(plain, sizeof(plain));
printf("cipher:");
hexdump(cipher, sizeof(cipher));
printf("output:");
hexdump(dst, sizeof(dst));
return 1;
}
}
return 0;
}
static int aes_check_test_256CBC(uint32_t count)
{
uint8_t dst[16] = {0};
uint8_t key[32] = {0};
uint8_t plain[16] = {0};
uint8_t cipher[16] = {0};
uint8_t iv[16] = {0};
u8 key_exp[AES256_EXPAND_KEY_LENGTH];
uint32_t i = 0;
srand(get_ticks() + rand());
for (i = 0; i < count; i++) {
gen_rand(key, sizeof(key));
gen_rand(plain, sizeof(plain));
gen_rand(iv, sizeof(iv));
/* First we expand the key. */
aes_expand_key(key, sizeof(key), key_exp);
aes_cbc_encrypt_blocks(AES256_KEY_LENGTH, key_exp, iv,
plain, cipher, sizeof(plain) / AES_BLOCK_LENGTH);
aml_aes_cbc_enc(key, sizeof(key),
plain,
dst, iv, sizeof(plain));
if (memcmp(dst, cipher, sizeof(cipher))) {
printf("CHECKING AES 256 CBC ENC round: %d ", i);
printf("FAIL\n");
printf("key:");
hexdump(key, sizeof(key));
printf("iv:");
hexdump(iv, sizeof(iv));
printf("plain:");
hexdump(plain, sizeof(plain));
printf("cipher:");
hexdump(cipher, sizeof(cipher));
printf("output:");
hexdump(dst, sizeof(dst));
return 1;
}
aml_aes_cbc_dec(key, sizeof(key),
cipher,
dst, iv, sizeof(cipher));
if (memcmp(dst, plain, sizeof(plain))) {
printf("CHECKING AES 256 CBC DEC round: %d ", i);
printf("FAIL\n");
printf("key:");
hexdump(key, sizeof(key));
printf("iv:");
hexdump(iv, sizeof(iv));
printf("plain:");
hexdump(plain, sizeof(plain));
printf("cipher:");
hexdump(cipher, sizeof(cipher));
printf("output:");
hexdump(dst, sizeof(dst));
return 1;
}
}
return 0;
}
#endif
static int tdes_3k_check_test_ECB(uint32_t count)
{
uint8_t dst[8] = {0};
uint8_t key[24] = {0};
uint8_t plain[8] = {0};
uint8_t cipher[8] = {0};
uint32_t i = 0;
srand(get_ticks() + rand());
for (i = 0; i < count; i++) {
uint64_t key_des = 0;
uint64_t plain_des = 0;
uint64_t cipher_des = 0;
gen_rand(key, sizeof(key));
gen_rand(plain, sizeof(plain));
memcpy(&plain_des, plain, 8);
plain_des = swab64(plain_des);
memcpy(&key_des, &key[0], 8);
key_des = swab64(key_des);
cipher_des = des(plain_des, key_des, 'e');
memcpy(&key_des, &key[8], 8);
key_des = swab64(key_des);
cipher_des = des(cipher_des, key_des, 'd');
memcpy(&key_des, &key[16], 8);
key_des = swab64(key_des);
cipher_des = des(cipher_des, key_des, 'e');
cipher_des = swab64(cipher_des);
memcpy(cipher, &cipher_des, 8);
aml_des_tdes_ecb_enc(key, sizeof(key), plain,
dst, sizeof(plain));
if (memcmp(dst, cipher, sizeof(cipher))) {
printf("CHECKING TDES 3K ECB ENC round: %d ", i);
printf("FAIL\n");
printf("key:");
hexdump(key, sizeof(key));
printf("plain:");
hexdump(plain, sizeof(plain));
printf("cipher:");
hexdump(cipher, sizeof(cipher));
printf("output:");
hexdump(dst, sizeof(dst));
return 1;
}
aml_des_tdes_ecb_dec(key, sizeof(key), cipher,
dst, sizeof(cipher));
if (memcmp(dst, plain, sizeof(plain))) {
printf("CHECKING TDES 3K ECB DEC round: %d ", i);
printf("FAIL\n");
printf("key:");
hexdump(key, sizeof(key));
printf("plain:");
hexdump(plain, sizeof(plain));
printf("cipher:");
hexdump(cipher, sizeof(cipher));
printf("output:");
hexdump(dst, sizeof(dst));
return 1;
}
}
return 0;
}
static int sha256_check_test(uint32_t count)
{
uint8_t dst[32] = {0};
uint8_t data[128] = {0};
uint8_t digest[32] = {0};
uint32_t i = 0;
srand(get_ticks() + rand());
for (i = 0; i < count; i++) {
sha256_context ctx;
sha2_ctx hw_ctx;
gen_rand(data, sizeof(data));
sha256_starts(&ctx);
sha256_update(&ctx, data, sizeof(data));
sha256_finish(&ctx, digest);
aml_hw_sha_init(&hw_ctx, 0);
aml_hw_sha_update(&hw_ctx, data, sizeof(data), dst, 1);
if (memcmp(dst, digest, sizeof(digest))) {
printf("CHECKING SHA256 round: %d ", i);
printf("FAIL\n");
printf("data:");
hexdump(data, sizeof(data));
printf("digest:");
hexdump(digest, sizeof(digest));
printf("output:");
hexdump(dst, sizeof(dst));
return 1;
}
}
return 0;
}
static int do_crypto_check_test(uint32_t count)
{
int ret = 0;
#ifdef CONFIG_AES
ret |= aes_check_test_128ECB(count);
ret |= aes_check_test_128CBC(count);
ret |= aes_check_test_256ECB(count);
ret |= aes_check_test_256CBC(count);
#else
printf("Enable CONFIG_AES to test");
#endif
ret |= tdes_3k_check_test_ECB(count);
ret |= sha256_check_test(count);
printf("HWCrypto Full Check Result for Rounds %d: %s\n", count, ret ? "FAIL" : "PASS");
return ret;
}
static int do_hw_crypto_check_test(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
uint32_t count = 0;
char *endp = 0;
if (argc != 2) {
cmd_usage(cmdtp);
return 1;
}
count = ustrtoul(argv[1], &endp, 0);
do_crypto_check_test(count);
return 0;
}
U_BOOT_CMD(crypto_check_test, 2, 0, do_hw_crypto_check_test,
"crypto_check_test <number of test cases>",
"run crypto check test cases\n"
);