286 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Plaintext
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			286 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Plaintext
		
	
	
		
			Executable File
		
	
	
	
	
/* BEGIN_HEADER */
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#include "mbedtls/chachapoly.h"
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES
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 * depends_on:MBEDTLS_CHACHAPOLY_C
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 * END_DEPENDENCIES
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 */
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/* BEGIN_CASE */
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void mbedtls_chachapoly_enc( data_t *key_str, data_t *nonce_str, data_t *aad_str, data_t *input_str, data_t *output_str, data_t *mac_str )
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{
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    unsigned char output[265];
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    unsigned char mac[16]; /* size set by the standard */
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    mbedtls_chachapoly_context ctx;
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    TEST_ASSERT( key_str->len   == 32 );
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    TEST_ASSERT( nonce_str->len == 12 );
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    TEST_ASSERT( mac_str->len   == 16 );
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    mbedtls_chachapoly_init( &ctx );
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    TEST_ASSERT( mbedtls_chachapoly_setkey( &ctx, key_str->x ) == 0 );
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    TEST_ASSERT( mbedtls_chachapoly_encrypt_and_tag( &ctx,
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                                      input_str->len, nonce_str->x,
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                                      aad_str->x, aad_str->len,
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                                      input_str->x, output, mac ) == 0 );
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    TEST_ASSERT( memcmp( output_str->x, output, output_str->len ) == 0 );
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    TEST_ASSERT( memcmp( mac_str->x, mac, 16U ) == 0 );
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exit:
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    mbedtls_chachapoly_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void mbedtls_chachapoly_dec( data_t *key_str, data_t *nonce_str, data_t *aad_str, data_t *input_str, data_t *output_str, data_t *mac_str, int ret_exp )
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{
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    unsigned char output[265];
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    int ret;
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    mbedtls_chachapoly_context ctx;
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    TEST_ASSERT( key_str->len   == 32 );
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    TEST_ASSERT( nonce_str->len == 12 );
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    TEST_ASSERT( mac_str->len   == 16 );
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    mbedtls_chachapoly_init( &ctx );
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    TEST_ASSERT( mbedtls_chachapoly_setkey( &ctx, key_str->x ) == 0 );
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    ret = mbedtls_chachapoly_auth_decrypt( &ctx,
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                                           input_str->len, nonce_str->x,
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                                           aad_str->x, aad_str->len,
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                                           mac_str->x, input_str->x, output );
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    TEST_ASSERT( ret == ret_exp );
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    if( ret_exp == 0 )
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    {
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        TEST_ASSERT( memcmp( output_str->x, output, output_str->len ) == 0 );
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    }
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exit:
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    mbedtls_chachapoly_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_CHECK_PARAMS:!MBEDTLS_PARAM_FAILED_ALT */
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void chachapoly_bad_params()
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{
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    unsigned char key[32];
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    unsigned char nonce[12];
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    unsigned char aad[1];
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    unsigned char input[1];
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    unsigned char output[1];
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    unsigned char mac[16];
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    size_t input_len = sizeof( input );
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    size_t aad_len = sizeof( aad );
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    mbedtls_chachapoly_context ctx;
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    memset( key,    0x00, sizeof( key ) );
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    memset( nonce,  0x00, sizeof( nonce ) );
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    memset( aad,    0x00, sizeof( aad ) );
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    memset( input,  0x00, sizeof( input ) );
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    memset( output, 0x00, sizeof( output ) );
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    memset( mac,    0x00, sizeof( mac ) );
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    TEST_INVALID_PARAM( mbedtls_chachapoly_init( NULL ) );
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    TEST_VALID_PARAM( mbedtls_chachapoly_free( NULL ) );
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    /* setkey */
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_setkey( NULL, key ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_setkey( &ctx, NULL ) );
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    /* encrypt_and_tag */
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_encrypt_and_tag( NULL,
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                                      0, nonce,
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                                      aad, 0,
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                                      input, output, mac ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_encrypt_and_tag( &ctx,
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                                      0, NULL,
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                                      aad, 0,
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                                      input, output, mac ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_encrypt_and_tag( &ctx,
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                                      0, nonce,
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                                      NULL, aad_len,
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                                      input, output, mac ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_encrypt_and_tag( &ctx,
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                                      input_len, nonce,
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                                      aad, 0,
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                                      NULL, output, mac ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_encrypt_and_tag( &ctx,
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                                      input_len, nonce,
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                                      aad, 0,
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                                      input, NULL, mac ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_encrypt_and_tag( &ctx,
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                                      0, nonce,
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                                      aad, 0,
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                                      input, output, NULL ) );
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    /* auth_decrypt */
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_auth_decrypt( NULL,
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                                           0, nonce,
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                                           aad, 0,
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                                           mac, input, output ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_auth_decrypt( &ctx,
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                                           0, NULL,
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                                           aad, 0,
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                                           mac, input, output ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_auth_decrypt( &ctx,
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                                           0, nonce,
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                                           NULL, aad_len,
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                                           mac, input, output ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_auth_decrypt( &ctx,
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                                           0, nonce,
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                                           aad, 0,
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                                           NULL, input, output ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_auth_decrypt( &ctx,
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                                           input_len, nonce,
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                                           aad, 0,
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                                           mac, NULL, output ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_auth_decrypt( &ctx,
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                                           input_len, nonce,
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                                           aad, 0,
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                                           mac, input, NULL ) );
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    /* starts */
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_starts( NULL, nonce,
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                                               MBEDTLS_CHACHAPOLY_ENCRYPT ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_starts( &ctx, NULL,
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                                               MBEDTLS_CHACHAPOLY_ENCRYPT ) );
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    /* update_aad */
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_update_aad( NULL, aad,
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                                                           aad_len ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_update_aad( &ctx, NULL,
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                                                           aad_len ) );
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    /* update */
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_update( NULL, input_len,
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                                                       input, output ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_update( &ctx, input_len,
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                                                       NULL, output ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_update( &ctx, input_len,
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                                                       input, NULL ) );
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    /* finish */
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_finish( NULL, mac ) );
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    TEST_INVALID_PARAM_RET( MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA,
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                            mbedtls_chachapoly_finish( &ctx, NULL ) );
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exit:
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    return;
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}
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/* END_CASE */
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/* BEGIN_CASE */
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void chachapoly_state()
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{
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    unsigned char key[32];
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    unsigned char nonce[12];
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    unsigned char aad[1];
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    unsigned char input[1];
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    unsigned char output[1];
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    unsigned char mac[16];
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    size_t input_len = sizeof( input );
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    size_t aad_len = sizeof( aad );
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    mbedtls_chachapoly_context ctx;
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    memset( key,    0x00, sizeof( key ) );
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    memset( nonce,  0x00, sizeof( nonce ) );
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    memset( aad,    0x00, sizeof( aad ) );
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    memset( input,  0x00, sizeof( input ) );
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    memset( output, 0x00, sizeof( output ) );
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    memset( mac,    0x00, sizeof( mac ) );
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    /* Initial state: finish, update, update_aad forbidden */
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    mbedtls_chachapoly_init( &ctx );
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    TEST_ASSERT( mbedtls_chachapoly_finish( &ctx, mac )
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                 == MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
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    TEST_ASSERT( mbedtls_chachapoly_update( &ctx, input_len, input, output )
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                 == MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
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    TEST_ASSERT( mbedtls_chachapoly_update_aad( &ctx, aad, aad_len )
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                 == MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
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    /* Still initial state: finish, update, update_aad forbidden */
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    TEST_ASSERT( mbedtls_chachapoly_setkey( &ctx, key )
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                 == 0 );
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    TEST_ASSERT( mbedtls_chachapoly_finish( &ctx, mac )
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                 == MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
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    TEST_ASSERT( mbedtls_chachapoly_update( &ctx, input_len, input, output )
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                 == MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
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    TEST_ASSERT( mbedtls_chachapoly_update_aad( &ctx, aad, aad_len )
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                 == MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
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    /* Starts -> finish OK */
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    TEST_ASSERT( mbedtls_chachapoly_starts( &ctx, nonce, MBEDTLS_CHACHAPOLY_ENCRYPT )
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                 == 0 );
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    TEST_ASSERT( mbedtls_chachapoly_finish( &ctx, mac )
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                 == 0 );
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    /* After finish: update, update_aad forbidden */
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    TEST_ASSERT( mbedtls_chachapoly_update( &ctx, input_len, input, output )
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                 == MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
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    TEST_ASSERT( mbedtls_chachapoly_update_aad( &ctx, aad, aad_len )
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                 == MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
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    /* Starts -> update* OK */
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    TEST_ASSERT( mbedtls_chachapoly_starts( &ctx, nonce, MBEDTLS_CHACHAPOLY_ENCRYPT )
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                 == 0 );
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    TEST_ASSERT( mbedtls_chachapoly_update( &ctx, input_len, input, output )
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                 == 0 );
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    TEST_ASSERT( mbedtls_chachapoly_update( &ctx, input_len, input, output )
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                 == 0 );
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    /* After update: update_aad forbidden */
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    TEST_ASSERT( mbedtls_chachapoly_update_aad( &ctx, aad, aad_len )
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                 == MBEDTLS_ERR_CHACHAPOLY_BAD_STATE );
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    /* Starts -> update_aad* -> finish OK */
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    TEST_ASSERT( mbedtls_chachapoly_starts( &ctx, nonce, MBEDTLS_CHACHAPOLY_ENCRYPT )
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                 == 0 );
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    TEST_ASSERT( mbedtls_chachapoly_update_aad( &ctx, aad, aad_len )
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                 == 0 );
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    TEST_ASSERT( mbedtls_chachapoly_update_aad( &ctx, aad, aad_len )
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                 == 0 );
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    TEST_ASSERT( mbedtls_chachapoly_finish( &ctx, mac )
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                 == 0 );
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exit:
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    mbedtls_chachapoly_free( &ctx );
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}
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/* END_CASE */
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/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
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void chachapoly_selftest()
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{
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    TEST_ASSERT( mbedtls_chachapoly_self_test( 1 ) == 0 );
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}
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/* END_CASE */
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