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psa: programs: Add cipher AES CTR multipart

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This commit is contained in:
itayzafrir 2018-07-12 13:06:41 +03:00
parent a2d0804b33
commit 44b09d2a67
1 changed files with 50 additions and 0 deletions
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50
programs/psa/crypto_examples.c
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@ -241,6 +241,51 @@ exit:
return( status );
}
static psa_status_t cipher_example_encrypt_decrypt_aes_ctr_multi( void )
{
enum {
block_size = PSA_BLOCK_CIPHER_BLOCK_SIZE( PSA_KEY_TYPE_AES ),
key_bits = 256,
input_size = 100,
part_size = 10,
};
const psa_algorithm_t alg = PSA_ALG_CTR;
psa_status_t status;
size_t output_len = 0;
uint8_t iv[block_size], input[input_size], encrypt[input_size],
decrypt[input_size];
status = psa_generate_random( input, sizeof( input ) );
ASSERT_STATUS( status, PSA_SUCCESS );
status = set_key_policy( key_slot_cipher,
PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT,
alg );
ASSERT_STATUS( status, PSA_SUCCESS );
status = psa_generate_key( key_slot_cipher, PSA_KEY_TYPE_AES, key_bits,
NULL, 0 );
ASSERT_STATUS( status, PSA_SUCCESS );
status = cipher_encrypt( key_slot_cipher, alg, iv, sizeof( iv ),
input, sizeof( input ), part_size,
encrypt, sizeof( encrypt ), &output_len );
ASSERT_STATUS( status, PSA_SUCCESS );
status = cipher_decrypt( key_slot_cipher, alg, iv, sizeof( iv ),
encrypt, output_len, part_size,
decrypt, sizeof( decrypt ), &output_len );
ASSERT_STATUS( status, PSA_SUCCESS );
status = memcmp( input, decrypt, sizeof( input ) );
ASSERT_STATUS( status, PSA_SUCCESS );
exit:
psa_destroy_key( key_slot_cipher );
return( status );
}
static void cipher_examples( void )
{
psa_status_t status;
@ -254,6 +299,11 @@ static void cipher_examples( void )
status = cipher_example_encrypt_decrypt_aes_cbc_pkcs7_multi( );
if( status == PSA_SUCCESS )
mbedtls_printf( "\tsuccess!\r\n" );
mbedtls_printf( "cipher encrypt/decrypt AES CTR multipart:\r\n" );
status = cipher_example_encrypt_decrypt_aes_ctr_multi( );
if( status == PSA_SUCCESS )
mbedtls_printf( "\tsuccess!\r\n" );
}
int main( void )