Move aead_non_psa out of the psa/ directory
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/programs/psa/CMakeLists.txt b/programs/psa/CMakeLists.txt
index 37192e3..7ba4af6 100644
--- a/programs/psa/CMakeLists.txt
+++ b/programs/psa/CMakeLists.txt
@@ -1,6 +1,5 @@
set(executables
- aead_non_psa
- aead_psa
+ aead_demo
crypto_examples
hmac_demo
key_ladder_demo
diff --git a/programs/psa/aead_psa.c b/programs/psa/aead_demo.c
similarity index 97%
rename from programs/psa/aead_psa.c
rename to programs/psa/aead_demo.c
index 2f0663d..4c7a522 100644
--- a/programs/psa/aead_psa.c
+++ b/programs/psa/aead_demo.c
@@ -4,7 +4,7 @@
* This program AEAD-encrypts a message, using the algorithm and key size
* specified on the command line, using the multi-part API.
*
- * It comes with a companion program aead_non_psa.c, which does the same
+ * It comes with a companion program cipher/aead_demo.c, which does the same
* operations with the legacy Cipher API. The goal is that comparing the two
* programs will help people migrating to the PSA Crypto API.
*
@@ -18,7 +18,7 @@
* On the other hand, with PSA, the algorithms encodes the desired tag length;
* with Cipher the desired tag length needs to be tracked separately.
*
- * This program and its companion aead_non_psa.c illustrate this by doing the
+ * This program and its companion cipher/aead_demo.c illustrate this by doing the
* same sequence of multi-part AEAD computation with both APIs; looking at the
* two side by side should make the differences and similarities clear.
*/
@@ -68,7 +68,7 @@
/* The real program starts here. */
-const char usage[] = "Usage: aead_psa [aes128-gcm|aes256-gcm|aes128-gcm_8|chachapoly]";
+const char usage[] = "Usage: aead_demo [aes128-gcm|aes256-gcm|aes128-gcm_8|chachapoly]";
/* Dummy data for encryption: IV/nonce, additional data, 2-part message */
const unsigned char iv1[12] = { 0x00 };
diff --git a/programs/psa/aead_non_psa.c b/programs/psa/aead_non_psa.c
deleted file mode 100644
index 00c7f0e..0000000
--- a/programs/psa/aead_non_psa.c
+++ /dev/null
@@ -1,264 +0,0 @@
-/**
- * Cipher API multi-part AEAD demonstration.
- *
- * This program AEAD-encrypts a message, using the algorithm and key size
- * specified on the command line, using the multi-part API.
- *
- * It comes with a companion program aead_psa.c, which does the same
- * operations with the PSA Crypto API. The goal is that comparing the two
- * programs will help people migrating to the PSA Crypto API.
- *
- * When used with multi-part AEAD operations, the `mbedtls_cipher_context`
- * serves a triple purpose (1) hold the key, (2) store the algorithm when no
- * operation is active, and (3) save progress information for the current
- * operation. With PSA those roles are held by disinct objects: (1) a
- * psa_key_id_t to hold the key, a (2) psa_algorithm_t to represent the
- * algorithm, and (3) a psa_operation_t for multi-part progress.
- *
- * On the other hand, with PSA, the algorithms encodes the desired tag length;
- * with Cipher the desired tag length needs to be tracked separately.
- *
- * This program and its companion aead_psa.c illustrate this by doing the
- * same sequence of multi-part AEAD computation with both APIs; looking at the
- * two side by side should make the differences and similarities clear.
- */
-
-/*
- * Copyright The Mbed TLS Contributors
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/* First include Mbed TLS headers to get the Mbed TLS configuration and
- * platform definitions that we'll use in this program. Also include
- * standard C headers for functions we'll use here. */
-#include "mbedtls/build_info.h"
-
-#include "mbedtls/cipher.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
-/* If the build options we need are not enabled, compile a placeholder. */
-#if !defined(MBEDTLS_CIPHER_C) || \
- !defined(MBEDTLS_AES_C) || !defined(MBEDTLS_GCM_C) || \
- !defined(MBEDTLS_CHACHAPOLY_C)
-int main( void )
-{
- printf( "MBEDTLS_MD_C and/or "
- "MBEDTLS_AES_C and/or MBEDTLS_GCM_C and/or "
- "MBEDTLS_CHACHAPOLY_C not defined\r\n" );
- return( 0 );
-}
-#else
-
-/* The real program starts here. */
-
-const char usage[] = "Usage: aead_psa [aes128-gcm|aes256-gcm|aes128-gcm_8|chachapoly]";
-
-/* Dummy data for encryption: IV/nonce, additional data, 2-part message */
-const unsigned char iv1[12] = { 0x00 };
-const unsigned char add_data1[] = { 0x01, 0x02 };
-const unsigned char msg1_part1[] = { 0x03, 0x04 };
-const unsigned char msg1_part2[] = { 0x05, 0x06, 0x07 };
-
-/* Dummy data (2nd message) */
-const unsigned char iv2[12] = { 0x10 };
-const unsigned char add_data2[] = { 0x11, 0x12 };
-const unsigned char msg2_part1[] = { 0x13, 0x14 };
-const unsigned char msg2_part2[] = { 0x15, 0x16, 0x17 };
-
-/* This must at least the sum of the length of the 2 parts for each message.
- * This is a macro for the sake of compilers with insufficient C99 support. */
-#define MSG_MAX_SIZE 5
-
-/* Dummy key material - never do this in production!
- * 32-byte is enough to all the key size supported by this program. */
-const unsigned char key_bytes[32] = { 0x2a };
-
-/* Print the contents of a buffer in hex */
-void print_buf( const char *title, unsigned char *buf, size_t len )
-{
- printf( "%s:", title );
- for( size_t i = 0; i < len; i++ )
- printf( " %02x", buf[i] );
- printf( "\n" );
-}
-
-/* Run an Mbed TLS function and bail out if it fails. */
-#define CHK( expr ) \
- do \
- { \
- ret = ( expr ); \
- if( ret != 0 ) \
- { \
- printf( "Error %d at line %d: %s\n", \
- ret, \
- __LINE__, \
- #expr ); \
- goto exit; \
- } \
- } while( 0 )
-
-/*
- * Prepare encryption material:
- * - interpret command-line argument
- * - set up key
- * - outputs: context and tag length, which together hold all the information
- */
-static int aead_prepare( const char *info,
- mbedtls_cipher_context_t *ctx,
- size_t *tag_len )
-{
- int ret;
-
- /* Convert arg to type + tag_len */
- mbedtls_cipher_type_t type;
- if( strcmp( info, "aes128-gcm" ) == 0 ) {
- type = MBEDTLS_CIPHER_AES_128_GCM;
- *tag_len = 16;
- } else if( strcmp( info, "aes256-gcm" ) == 0 ) {
- type = MBEDTLS_CIPHER_AES_256_GCM;
- *tag_len = 16;
- } else if( strcmp( info, "aes128-gcm_8" ) == 0 ) {
- type = MBEDTLS_CIPHER_AES_128_GCM;
- *tag_len = 8;
- } else if( strcmp( info, "chachapoly" ) == 0 ) {
- type = MBEDTLS_CIPHER_CHACHA20_POLY1305;
- *tag_len = 16;
- } else {
- puts( usage );
- return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
- }
-
- /* Prepare context for the given type */
- CHK( mbedtls_cipher_setup( ctx,
- mbedtls_cipher_info_from_type( type ) ) );
-
- /* Import key */
- int key_len = mbedtls_cipher_get_key_bitlen( ctx );
- CHK( mbedtls_cipher_setkey( ctx, key_bytes, key_len, MBEDTLS_ENCRYPT ) );
-
-exit:
- return( ret );
-}
-
-/*
- * Print out some information.
- *
- * All of this information was present in the command line argument, but his
- * function demonstrates how each piece can be recovered from (ctx, tag_len).
- */
-static void aead_info( const mbedtls_cipher_context_t *ctx, size_t tag_len )
-{
- // no convenient way to get the just cipher type (for example, AES)
- const char *ciph = "???";
- int key_bits = mbedtls_cipher_get_key_bitlen( ctx );
- mbedtls_cipher_mode_t mode = mbedtls_cipher_get_cipher_mode( ctx );
-
- const char *mode_str = mode == MBEDTLS_MODE_GCM ? "GCM"
- : mode == MBEDTLS_MODE_CHACHAPOLY ? "ChachaPoly"
- : "???";
-
- printf( "cipher: %s, %d, %s, %u\n", ciph, key_bits, mode_str, (unsigned) tag_len );
-}
-
-/*
- * Encrypt a 2-part message.
- */
-static int aead_encrypt( mbedtls_cipher_context_t *ctx, size_t tag_len,
- const unsigned char *iv, size_t iv_len,
- const unsigned char *ad, size_t ad_len,
- const unsigned char *pa, size_t pa_len,
- const unsigned char *pb, size_t pb_len )
-{
- int ret;
- size_t olen;
- unsigned char out[MSG_MAX_SIZE + 16];
- unsigned char *p = out;
-
- CHK( mbedtls_cipher_set_iv( ctx, iv, iv_len ) );
- CHK( mbedtls_cipher_reset( ctx ) );
- CHK( mbedtls_cipher_update_ad( ctx, ad, ad_len ) );
- CHK( mbedtls_cipher_update( ctx, pa, pa_len, p, &olen ) );
- p += olen;
- CHK( mbedtls_cipher_update( ctx, pb, pb_len, p, &olen ) );
- p += olen;
- CHK( mbedtls_cipher_finish( ctx, p, &olen ) );
- p += olen;
- CHK( mbedtls_cipher_write_tag( ctx, p, tag_len ) );
- p += tag_len;
-
- olen = p - out;
- print_buf( "cipher", out, olen );
-
-exit:
- return( ret );
-}
-
-/*
- * AEAD demo: set up key/alg, print out info, encrypt messages.
- */
-static int aead_demo( const char *info )
-{
- int ret = 0;
-
- mbedtls_cipher_context_t ctx;
- size_t tag_len;
-
- mbedtls_cipher_init( &ctx );
-
- CHK( aead_prepare( info, &ctx, &tag_len ) );
-
- aead_info( &ctx, tag_len );
-
- CHK( aead_encrypt( &ctx, tag_len,
- iv1, sizeof( iv1 ), add_data1, sizeof( add_data1 ),
- msg1_part1, sizeof( msg1_part1 ),
- msg1_part2, sizeof( msg1_part2 ) ) );
- CHK( aead_encrypt( &ctx, tag_len,
- iv2, sizeof( iv2 ), add_data2, sizeof( add_data2 ),
- msg2_part1, sizeof( msg2_part1 ),
- msg2_part2, sizeof( msg2_part2 ) ) );
-
-exit:
- mbedtls_cipher_free( &ctx );
-
- return( ret );
-}
-
-
-/*
- * Main function
- */
-int main( int argc, char **argv )
-{
- /* Check usage */
- if( argc != 2 )
- {
- puts( usage );
- return( 1 );
- }
-
- int ret;
-
- /* Run the demo */
- CHK( aead_demo( argv[1] ) );
-
-exit:
- return( ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE );
-}
-
-#endif