344 lines
11 KiB
Text
344 lines
11 KiB
Text
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/* BEGIN_HEADER */
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#include "mbedtls/nist_kw.h"
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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* depends_on:MBEDTLS_NIST_KW_C
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* END_DEPENDENCIES
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*/
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/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST:MBEDTLS_AES_C */
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void mbedtls_nist_kw_self_test( )
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{
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TEST_ASSERT( mbedtls_nist_kw_self_test( 1 ) == 0 );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_AES_C */
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void mbedtls_nist_kw_mix_contexts( )
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{
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mbedtls_nist_kw_context ctx1, ctx2;
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unsigned char key[16];
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unsigned char plaintext[32];
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unsigned char ciphertext1[40];
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unsigned char ciphertext2[40];
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size_t output_len, i;
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memset( plaintext, 0, sizeof( plaintext ) );
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memset( ciphertext1, 0, sizeof( ciphertext1 ) );
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memset( ciphertext2, 0, sizeof( ciphertext2 ) );
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memset( key, 0, sizeof( key ) );
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/*
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* 1. Check wrap and unwrap with two seperate contexts
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*/
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mbedtls_nist_kw_init( &ctx1 );
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mbedtls_nist_kw_init( &ctx2 );
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TEST_ASSERT( mbedtls_nist_kw_setkey( &ctx1,
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MBEDTLS_CIPHER_ID_AES,
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key, sizeof( key ) * 8,
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1 ) == 0 );
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TEST_ASSERT( mbedtls_nist_kw_wrap( &ctx1, MBEDTLS_KW_MODE_KW,
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plaintext, sizeof( plaintext ),
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ciphertext1, &output_len,
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sizeof( ciphertext1 ) ) == 0 );
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TEST_ASSERT( output_len == sizeof( ciphertext1 ) );
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TEST_ASSERT( mbedtls_nist_kw_setkey( &ctx2,
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MBEDTLS_CIPHER_ID_AES,
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key, sizeof( key ) * 8,
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0 ) == 0 );
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TEST_ASSERT( mbedtls_nist_kw_unwrap( &ctx2, MBEDTLS_KW_MODE_KW,
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ciphertext1, output_len,
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plaintext, &output_len,
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sizeof( plaintext ) ) == 0 );
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TEST_ASSERT( output_len == sizeof( plaintext ) );
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for( i = 0; i < sizeof( plaintext ); i++ )
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{
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TEST_ASSERT( plaintext[i] == 0 );
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}
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mbedtls_nist_kw_free( &ctx1 );
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mbedtls_nist_kw_free( &ctx2 );
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/*
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* 2. Check wrapping with two modes, on same context
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*/
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mbedtls_nist_kw_init( &ctx1 );
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mbedtls_nist_kw_init( &ctx2 );
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output_len = sizeof( ciphertext1 );
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TEST_ASSERT( mbedtls_nist_kw_setkey( &ctx1,
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MBEDTLS_CIPHER_ID_AES,
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key, sizeof( key ) * 8,
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1 ) == 0 );
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TEST_ASSERT( mbedtls_nist_kw_wrap( &ctx1, MBEDTLS_KW_MODE_KW,
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plaintext, sizeof( plaintext ),
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ciphertext1, &output_len,
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sizeof( ciphertext1 ) ) == 0 );
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TEST_ASSERT( output_len == sizeof( ciphertext1 ) );
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TEST_ASSERT( mbedtls_nist_kw_wrap( &ctx1, MBEDTLS_KW_MODE_KWP,
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plaintext, sizeof( plaintext ),
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ciphertext2, &output_len,
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sizeof( ciphertext2 ) ) == 0 );
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TEST_ASSERT( output_len == sizeof( ciphertext2 ) );
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TEST_ASSERT( mbedtls_nist_kw_setkey( &ctx2,
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MBEDTLS_CIPHER_ID_AES,
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key, sizeof( key ) * 8,
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0 ) == 0 );
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TEST_ASSERT( mbedtls_nist_kw_unwrap( &ctx2, MBEDTLS_KW_MODE_KW,
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ciphertext1, sizeof( ciphertext1 ),
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plaintext, &output_len,
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sizeof( plaintext ) ) == 0 );
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TEST_ASSERT( output_len == sizeof( plaintext ) );
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for( i = 0; i < sizeof( plaintext ); i++ )
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{
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TEST_ASSERT( plaintext[i] == 0 );
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}
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TEST_ASSERT( mbedtls_nist_kw_unwrap( &ctx2, MBEDTLS_KW_MODE_KWP,
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ciphertext2, sizeof( ciphertext2 ),
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plaintext, &output_len,
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sizeof( plaintext ) ) == 0 );
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TEST_ASSERT( output_len == sizeof( plaintext ) );
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for( i = 0; i < sizeof( plaintext ); i++ )
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{
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TEST_ASSERT( plaintext[i] == 0 );
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}
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exit:
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mbedtls_nist_kw_free( &ctx1 );
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mbedtls_nist_kw_free( &ctx2 );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void mbedtls_nist_kw_setkey( int cipher_id, int key_size,
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int is_wrap, int result )
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{
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mbedtls_nist_kw_context ctx;
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unsigned char key[32];
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int ret;
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mbedtls_nist_kw_init( &ctx );
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memset( key, 0x2A, sizeof( key ) );
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TEST_ASSERT( (unsigned) key_size <= 8 * sizeof( key ) );
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ret = mbedtls_nist_kw_setkey( &ctx, cipher_id, key, key_size, is_wrap );
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TEST_ASSERT( ret == result );
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exit:
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mbedtls_nist_kw_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_AES_C */
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void nist_kw_plaintext_lengths( int in_len, int out_len, int mode, int res )
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{
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mbedtls_nist_kw_context ctx;
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unsigned char key[16];
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unsigned char *plaintext = NULL;
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unsigned char *ciphertext = NULL;
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size_t output_len = out_len;
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mbedtls_nist_kw_init( &ctx );
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memset( key, 0, sizeof( key ) );
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if (in_len == 0)
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{
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/* mbedtls_calloc can return NULL for zero-length buffers. Make sure we
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* always have a plaintext buffer, even if the length is 0. */
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plaintext = mbedtls_calloc( 1, 1 );
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}
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else
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{
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plaintext = mbedtls_calloc( 1, in_len );
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}
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TEST_ASSERT( plaintext != NULL );
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ciphertext = mbedtls_calloc( 1, output_len );
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TEST_ASSERT( ciphertext != NULL );
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memset( plaintext, 0, in_len );
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memset( ciphertext, 0, output_len );
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TEST_ASSERT( mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES,
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key, 8 * sizeof( key ), 1 ) == 0 );
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TEST_ASSERT( mbedtls_nist_kw_wrap( &ctx, mode, plaintext, in_len,
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ciphertext, &output_len,
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output_len ) == res );
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if( res == 0 )
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{
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if( mode == MBEDTLS_KW_MODE_KWP )
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TEST_ASSERT( output_len == (size_t) in_len + 8 -
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( in_len % 8 ) + 8 );
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else
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TEST_ASSERT( output_len == (size_t) in_len + 8 );
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}
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else
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{
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TEST_ASSERT( output_len == 0 );
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}
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exit:
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mbedtls_free( ciphertext );
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mbedtls_free( plaintext );
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mbedtls_nist_kw_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_AES_C */
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void nist_kw_ciphertext_lengths( int in_len, int out_len, int mode, int res )
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{
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mbedtls_nist_kw_context ctx;
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unsigned char key[16];
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unsigned char *plaintext = NULL;
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unsigned char *ciphertext = NULL;
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int unwrap_ret;
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size_t output_len = out_len;
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mbedtls_nist_kw_init( &ctx );
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memset( key, 0, sizeof( key ) );
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plaintext = mbedtls_calloc( 1, output_len );
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TEST_ASSERT( plaintext != NULL );
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ciphertext = mbedtls_calloc( 1, in_len );
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TEST_ASSERT( ciphertext != NULL );
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memset( plaintext, 0, output_len );
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memset( ciphertext, 0, in_len );
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TEST_ASSERT( mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES,
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key, 8 * sizeof( key ), 0 ) == 0 );
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unwrap_ret = mbedtls_nist_kw_unwrap( &ctx, mode, ciphertext, in_len,
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plaintext, &output_len,
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output_len );
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if( res == 0 )
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TEST_ASSERT( unwrap_ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED );
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else
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TEST_ASSERT( unwrap_ret == res );
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TEST_ASSERT( output_len == 0 );
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exit:
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mbedtls_free( ciphertext );
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mbedtls_free( plaintext );
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mbedtls_nist_kw_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void mbedtls_nist_kw_wrap( int cipher_id, int mode,
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char *key_hex, char *msg_hex,
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char *result_hex )
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{
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unsigned char key[32];
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unsigned char msg[512];
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unsigned char result[528];
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unsigned char expected_result[528];
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mbedtls_nist_kw_context ctx;
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size_t key_len, msg_len, output_len, result_len, i, padlen;
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mbedtls_nist_kw_init( &ctx );
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memset( key, 0x00, sizeof( key ) );
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memset( msg, 0x00, sizeof( msg ) );
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memset( result, '+', sizeof( result ) );
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key_len = unhexify( key, key_hex );
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msg_len = unhexify( msg, msg_hex );
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result_len = unhexify( expected_result, result_hex );
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output_len = sizeof( result );
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TEST_ASSERT( mbedtls_nist_kw_setkey( &ctx, cipher_id, key, key_len * 8, 1 )
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== 0 );
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/* Test with input == output */
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TEST_ASSERT( mbedtls_nist_kw_wrap( &ctx, mode, msg, msg_len,
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result, &output_len, sizeof( result ) ) == 0 );
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TEST_ASSERT( output_len == result_len );
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TEST_ASSERT( memcmp( expected_result, result, result_len ) == 0 );
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padlen = ( msg_len % 8 != 0 ) ? 8 - (msg_len % 8 ) : 0;
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/* Check that the function didn't write beyond the end of the buffer. */
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for( i = msg_len + 8 + padlen; i < sizeof( result ); i++ )
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{
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TEST_ASSERT( result[i] == '+' );
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}
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exit:
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mbedtls_nist_kw_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void mbedtls_nist_kw_unwrap( int cipher_id, int mode,
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char *key_hex, char *msg_hex,
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char *result_hex, int expected_ret )
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{
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unsigned char key[32];
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unsigned char msg[528];
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unsigned char result[528];
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unsigned char expected_result[528];
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mbedtls_nist_kw_context ctx;
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size_t key_len, msg_len, output_len, result_len, i;
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mbedtls_nist_kw_init( &ctx );
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memset( key, 0x00, sizeof( key ) );
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memset( msg, 0x00, sizeof( msg ) );
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memset( result, '+', sizeof( result ) );
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memset( expected_result, 0x00, sizeof( expected_result ) );
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key_len = unhexify( key, key_hex );
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msg_len = unhexify( msg, msg_hex );
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result_len = unhexify( expected_result, result_hex );
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output_len = sizeof( result );
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TEST_ASSERT( mbedtls_nist_kw_setkey( &ctx, cipher_id, key, key_len * 8, 0 )
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== 0 );
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/* Test with input == output */
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TEST_ASSERT( mbedtls_nist_kw_unwrap( &ctx, mode, msg, msg_len,
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result, &output_len, sizeof( result ) ) == expected_ret );
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if( expected_ret == 0 )
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{
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TEST_ASSERT( output_len == result_len );
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TEST_ASSERT( memcmp( expected_result, result, result_len ) == 0 );
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}
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else
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{
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TEST_ASSERT( output_len == 0 );
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}
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/* Check that the function didn't write beyond the end of the buffer. */
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for( i = msg_len - 8; i < sizeof( result ); i++ )
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{
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TEST_ASSERT( result[i] == '+' );
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}
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exit:
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mbedtls_nist_kw_free( &ctx );
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}
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/* END_CASE */
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