yuzu-emu/mbedtls
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Restructure start of program

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Restructure the start of the program to make it
clear to a user exactly what this program is for.
Add a comment for additional clarity.

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
This commit is contained in:
Thomas Daubney 2023-07-28 15:57:10 +01:00
parent 1f98736e71
commit 606110fc19
1 changed files with 17 additions and 12 deletions
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29
programs/psa/psa_hash.c
View file

@ -33,18 +33,24 @@
#include "mbedtls/build_info.h"
#include "mbedtls/platform.h"
/* The algorithm used by this demo is SHA 256.
* Please see include/psa/crypto_values.h to see the other
* algorithms that are supported. If you switch to a different
* algorithm you will need to update the hash data in the
* SAMPLE_HASH_DATA macro below.*/
#define HASH_ALG PSA_ALG_SHA_256
#define TEST_SHA256_HASH { \
#define SAMPLE_HASH_DATA { \
0x5a, 0x09, 0xe8, 0xfa, 0x9c, 0x77, 0x80, 0x7b, 0x24, 0xe9, 0x9c, 0x9c, \
0xf9, 0x99, 0xde, 0xbf, 0xad, 0x84, 0x41, 0xe2, 0x69, 0xeb, 0x96, 0x0e, \
0x20, 0x1f, 0x61, 0xfc, 0x3d, 0xe2, 0x0d, 0x5a \
}
const uint8_t test_sha256_hash[] = TEST_SHA256_HASH;
const uint8_t sample_message[] = "Hello World!";
const size_t test_sha256_hash_len =
sizeof(test_sha256_hash);
const uint8_t sample_hash[] = SAMPLE_HASH_DATA;
const size_t sample_hash_len = sizeof(sample_hash);
#if !defined(MBEDTLS_PSA_CRYPTO_C) || !defined(PSA_WANT_ALG_SHA_256)
int main(void)
@ -57,7 +63,6 @@ int main(void)
int main(void)
{
uint8_t buf[] = "Hello World!";
psa_status_t status;
uint8_t hash[PSA_HASH_LENGTH(HASH_ALG)];
size_t hash_length;
@ -82,7 +87,7 @@ int main(void)
return EXIT_FAILURE;
}
status = psa_hash_update(&hash_operation, buf, sizeof(buf));
status = psa_hash_update(&hash_operation, sample_message, sizeof(sample_message));
if (status != PSA_SUCCESS) {
mbedtls_printf("psa_hash_update failed\n");
psa_hash_abort(&hash_operation);
@ -107,8 +112,8 @@ int main(void)
}
status =
psa_hash_verify(&cloned_hash_operation, test_sha256_hash,
test_sha256_hash_len);
psa_hash_verify(&cloned_hash_operation, sample_hash,
sample_hash_len);
if (status != PSA_SUCCESS) {
mbedtls_printf("psa_hash_verify failed\n");
psa_hash_abort(&hash_operation);
@ -124,7 +129,7 @@ int main(void)
/* Compute hash using one-shot function call */
status = psa_hash_compute(HASH_ALG,
buf, sizeof(buf),
sample_message, sizeof(sample_message),
hash, sizeof(hash),
&hash_length);
if (status != PSA_SUCCESS) {
@ -134,7 +139,7 @@ int main(void)
return EXIT_FAILURE;
}
if (memcmp(hash, test_sha256_hash, test_sha256_hash_len) != 0)
if (memcmp(hash, sample_hash, sample_hash_len) != 0)
{
mbedtls_printf("One-shot hash operation gave the wrong result!\n\n");
psa_hash_abort(&hash_operation);
@ -145,9 +150,9 @@ int main(void)
mbedtls_printf("One-shot hash operation successful!\n\n");
/* Print out result */
mbedtls_printf("The SHA-256( '%s' ) is: ", buf);
mbedtls_printf("The SHA-256( '%s' ) is: ", sample_message);
for (size_t j = 0; j < test_sha256_hash_len; j++) {
for (size_t j = 0; j < sample_hash_len; j++) {
mbedtls_printf("%02x", hash[j]);
}