From 9db10386430479067795bec66bb26343ff176ded Mon Sep 17 00:00:00 2001 From: Adam Harrison Date: Thu, 6 Jul 2023 06:37:41 -0400 Subject: Removed old mbedtls, replacing with submodule. --- lib/mbedtls-2.27.0/library/chachapoly.c | 538 -------------------------------- 1 file changed, 538 deletions(-) delete mode 100644 lib/mbedtls-2.27.0/library/chachapoly.c (limited to 'lib/mbedtls-2.27.0/library/chachapoly.c') diff --git a/lib/mbedtls-2.27.0/library/chachapoly.c b/lib/mbedtls-2.27.0/library/chachapoly.c deleted file mode 100644 index 77d5477..0000000 --- a/lib/mbedtls-2.27.0/library/chachapoly.c +++ /dev/null @@ -1,538 +0,0 @@ -/** - * \file chachapoly.c - * - * \brief ChaCha20-Poly1305 AEAD construction based on RFC 7539. - * - * 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. - */ -#include "common.h" - -#if defined(MBEDTLS_CHACHAPOLY_C) - -#include "mbedtls/chachapoly.h" -#include "mbedtls/platform_util.h" -#include "mbedtls/error.h" - -#include - -#if defined(MBEDTLS_SELF_TEST) -#if defined(MBEDTLS_PLATFORM_C) -#include "mbedtls/platform.h" -#else -#include -#define mbedtls_printf printf -#endif /* MBEDTLS_PLATFORM_C */ -#endif /* MBEDTLS_SELF_TEST */ - -#if !defined(MBEDTLS_CHACHAPOLY_ALT) - -/* Parameter validation macros */ -#define CHACHAPOLY_VALIDATE_RET( cond ) \ - MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA ) -#define CHACHAPOLY_VALIDATE( cond ) \ - MBEDTLS_INTERNAL_VALIDATE( cond ) - -#define CHACHAPOLY_STATE_INIT ( 0 ) -#define CHACHAPOLY_STATE_AAD ( 1 ) -#define CHACHAPOLY_STATE_CIPHERTEXT ( 2 ) /* Encrypting or decrypting */ -#define CHACHAPOLY_STATE_FINISHED ( 3 ) - -/** - * \brief Adds nul bytes to pad the AAD for Poly1305. - * - * \param ctx The ChaCha20-Poly1305 context. - */ -static int chachapoly_pad_aad( mbedtls_chachapoly_context *ctx ) -{ - uint32_t partial_block_len = (uint32_t) ( ctx->aad_len % 16U ); - unsigned char zeroes[15]; - - if( partial_block_len == 0U ) - return( 0 ); - - memset( zeroes, 0, sizeof( zeroes ) ); - - return( mbedtls_poly1305_update( &ctx->poly1305_ctx, - zeroes, - 16U - partial_block_len ) ); -} - -/** - * \brief Adds nul bytes to pad the ciphertext for Poly1305. - * - * \param ctx The ChaCha20-Poly1305 context. - */ -static int chachapoly_pad_ciphertext( mbedtls_chachapoly_context *ctx ) -{ - uint32_t partial_block_len = (uint32_t) ( ctx->ciphertext_len % 16U ); - unsigned char zeroes[15]; - - if( partial_block_len == 0U ) - return( 0 ); - - memset( zeroes, 0, sizeof( zeroes ) ); - return( mbedtls_poly1305_update( &ctx->poly1305_ctx, - zeroes, - 16U - partial_block_len ) ); -} - -void mbedtls_chachapoly_init( mbedtls_chachapoly_context *ctx ) -{ - CHACHAPOLY_VALIDATE( ctx != NULL ); - - mbedtls_chacha20_init( &ctx->chacha20_ctx ); - mbedtls_poly1305_init( &ctx->poly1305_ctx ); - ctx->aad_len = 0U; - ctx->ciphertext_len = 0U; - ctx->state = CHACHAPOLY_STATE_INIT; - ctx->mode = MBEDTLS_CHACHAPOLY_ENCRYPT; -} - -void mbedtls_chachapoly_free( mbedtls_chachapoly_context *ctx ) -{ - if( ctx == NULL ) - return; - - mbedtls_chacha20_free( &ctx->chacha20_ctx ); - mbedtls_poly1305_free( &ctx->poly1305_ctx ); - ctx->aad_len = 0U; - ctx->ciphertext_len = 0U; - ctx->state = CHACHAPOLY_STATE_INIT; - ctx->mode = MBEDTLS_CHACHAPOLY_ENCRYPT; -} - -int mbedtls_chachapoly_setkey( mbedtls_chachapoly_context *ctx, - const unsigned char key[32] ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - CHACHAPOLY_VALIDATE_RET( ctx != NULL ); - CHACHAPOLY_VALIDATE_RET( key != NULL ); - - ret = mbedtls_chacha20_setkey( &ctx->chacha20_ctx, key ); - - return( ret ); -} - -int mbedtls_chachapoly_starts( mbedtls_chachapoly_context *ctx, - const unsigned char nonce[12], - mbedtls_chachapoly_mode_t mode ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - unsigned char poly1305_key[64]; - CHACHAPOLY_VALIDATE_RET( ctx != NULL ); - CHACHAPOLY_VALIDATE_RET( nonce != NULL ); - - /* Set counter = 0, will be update to 1 when generating Poly1305 key */ - ret = mbedtls_chacha20_starts( &ctx->chacha20_ctx, nonce, 0U ); - if( ret != 0 ) - goto cleanup; - - /* Generate the Poly1305 key by getting the ChaCha20 keystream output with - * counter = 0. This is the same as encrypting a buffer of zeroes. - * Only the first 256-bits (32 bytes) of the key is used for Poly1305. - * The other 256 bits are discarded. - */ - memset( poly1305_key, 0, sizeof( poly1305_key ) ); - ret = mbedtls_chacha20_update( &ctx->chacha20_ctx, sizeof( poly1305_key ), - poly1305_key, poly1305_key ); - if( ret != 0 ) - goto cleanup; - - ret = mbedtls_poly1305_starts( &ctx->poly1305_ctx, poly1305_key ); - - if( ret == 0 ) - { - ctx->aad_len = 0U; - ctx->ciphertext_len = 0U; - ctx->state = CHACHAPOLY_STATE_AAD; - ctx->mode = mode; - } - -cleanup: - mbedtls_platform_zeroize( poly1305_key, 64U ); - return( ret ); -} - -int mbedtls_chachapoly_update_aad( mbedtls_chachapoly_context *ctx, - const unsigned char *aad, - size_t aad_len ) -{ - CHACHAPOLY_VALIDATE_RET( ctx != NULL ); - CHACHAPOLY_VALIDATE_RET( aad_len == 0 || aad != NULL ); - - if( ctx->state != CHACHAPOLY_STATE_AAD ) - return( MBEDTLS_ERR_CHACHAPOLY_BAD_STATE ); - - ctx->aad_len += aad_len; - - return( mbedtls_poly1305_update( &ctx->poly1305_ctx, aad, aad_len ) ); -} - -int mbedtls_chachapoly_update( mbedtls_chachapoly_context *ctx, - size_t len, - const unsigned char *input, - unsigned char *output ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - CHACHAPOLY_VALIDATE_RET( ctx != NULL ); - CHACHAPOLY_VALIDATE_RET( len == 0 || input != NULL ); - CHACHAPOLY_VALIDATE_RET( len == 0 || output != NULL ); - - if( ( ctx->state != CHACHAPOLY_STATE_AAD ) && - ( ctx->state != CHACHAPOLY_STATE_CIPHERTEXT ) ) - { - return( MBEDTLS_ERR_CHACHAPOLY_BAD_STATE ); - } - - if( ctx->state == CHACHAPOLY_STATE_AAD ) - { - ctx->state = CHACHAPOLY_STATE_CIPHERTEXT; - - ret = chachapoly_pad_aad( ctx ); - if( ret != 0 ) - return( ret ); - } - - ctx->ciphertext_len += len; - - if( ctx->mode == MBEDTLS_CHACHAPOLY_ENCRYPT ) - { - ret = mbedtls_chacha20_update( &ctx->chacha20_ctx, len, input, output ); - if( ret != 0 ) - return( ret ); - - ret = mbedtls_poly1305_update( &ctx->poly1305_ctx, output, len ); - if( ret != 0 ) - return( ret ); - } - else /* DECRYPT */ - { - ret = mbedtls_poly1305_update( &ctx->poly1305_ctx, input, len ); - if( ret != 0 ) - return( ret ); - - ret = mbedtls_chacha20_update( &ctx->chacha20_ctx, len, input, output ); - if( ret != 0 ) - return( ret ); - } - - return( 0 ); -} - -int mbedtls_chachapoly_finish( mbedtls_chachapoly_context *ctx, - unsigned char mac[16] ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - unsigned char len_block[16]; - CHACHAPOLY_VALIDATE_RET( ctx != NULL ); - CHACHAPOLY_VALIDATE_RET( mac != NULL ); - - if( ctx->state == CHACHAPOLY_STATE_INIT ) - { - return( MBEDTLS_ERR_CHACHAPOLY_BAD_STATE ); - } - - if( ctx->state == CHACHAPOLY_STATE_AAD ) - { - ret = chachapoly_pad_aad( ctx ); - if( ret != 0 ) - return( ret ); - } - else if( ctx->state == CHACHAPOLY_STATE_CIPHERTEXT ) - { - ret = chachapoly_pad_ciphertext( ctx ); - if( ret != 0 ) - return( ret ); - } - - ctx->state = CHACHAPOLY_STATE_FINISHED; - - /* The lengths of the AAD and ciphertext are processed by - * Poly1305 as the final 128-bit block, encoded as little-endian integers. - */ - len_block[ 0] = (unsigned char)( ctx->aad_len ); - len_block[ 1] = (unsigned char)( ctx->aad_len >> 8 ); - len_block[ 2] = (unsigned char)( ctx->aad_len >> 16 ); - len_block[ 3] = (unsigned char)( ctx->aad_len >> 24 ); - len_block[ 4] = (unsigned char)( ctx->aad_len >> 32 ); - len_block[ 5] = (unsigned char)( ctx->aad_len >> 40 ); - len_block[ 6] = (unsigned char)( ctx->aad_len >> 48 ); - len_block[ 7] = (unsigned char)( ctx->aad_len >> 56 ); - len_block[ 8] = (unsigned char)( ctx->ciphertext_len ); - len_block[ 9] = (unsigned char)( ctx->ciphertext_len >> 8 ); - len_block[10] = (unsigned char)( ctx->ciphertext_len >> 16 ); - len_block[11] = (unsigned char)( ctx->ciphertext_len >> 24 ); - len_block[12] = (unsigned char)( ctx->ciphertext_len >> 32 ); - len_block[13] = (unsigned char)( ctx->ciphertext_len >> 40 ); - len_block[14] = (unsigned char)( ctx->ciphertext_len >> 48 ); - len_block[15] = (unsigned char)( ctx->ciphertext_len >> 56 ); - - ret = mbedtls_poly1305_update( &ctx->poly1305_ctx, len_block, 16U ); - if( ret != 0 ) - return( ret ); - - ret = mbedtls_poly1305_finish( &ctx->poly1305_ctx, mac ); - - return( ret ); -} - -static int chachapoly_crypt_and_tag( mbedtls_chachapoly_context *ctx, - mbedtls_chachapoly_mode_t mode, - size_t length, - const unsigned char nonce[12], - const unsigned char *aad, - size_t aad_len, - const unsigned char *input, - unsigned char *output, - unsigned char tag[16] ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - - ret = mbedtls_chachapoly_starts( ctx, nonce, mode ); - if( ret != 0 ) - goto cleanup; - - ret = mbedtls_chachapoly_update_aad( ctx, aad, aad_len ); - if( ret != 0 ) - goto cleanup; - - ret = mbedtls_chachapoly_update( ctx, length, input, output ); - if( ret != 0 ) - goto cleanup; - - ret = mbedtls_chachapoly_finish( ctx, tag ); - -cleanup: - return( ret ); -} - -int mbedtls_chachapoly_encrypt_and_tag( mbedtls_chachapoly_context *ctx, - size_t length, - const unsigned char nonce[12], - const unsigned char *aad, - size_t aad_len, - const unsigned char *input, - unsigned char *output, - unsigned char tag[16] ) -{ - CHACHAPOLY_VALIDATE_RET( ctx != NULL ); - CHACHAPOLY_VALIDATE_RET( nonce != NULL ); - CHACHAPOLY_VALIDATE_RET( tag != NULL ); - CHACHAPOLY_VALIDATE_RET( aad_len == 0 || aad != NULL ); - CHACHAPOLY_VALIDATE_RET( length == 0 || input != NULL ); - CHACHAPOLY_VALIDATE_RET( length == 0 || output != NULL ); - - return( chachapoly_crypt_and_tag( ctx, MBEDTLS_CHACHAPOLY_ENCRYPT, - length, nonce, aad, aad_len, - input, output, tag ) ); -} - -int mbedtls_chachapoly_auth_decrypt( mbedtls_chachapoly_context *ctx, - size_t length, - const unsigned char nonce[12], - const unsigned char *aad, - size_t aad_len, - const unsigned char tag[16], - const unsigned char *input, - unsigned char *output ) -{ - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - unsigned char check_tag[16]; - size_t i; - int diff; - CHACHAPOLY_VALIDATE_RET( ctx != NULL ); - CHACHAPOLY_VALIDATE_RET( nonce != NULL ); - CHACHAPOLY_VALIDATE_RET( tag != NULL ); - CHACHAPOLY_VALIDATE_RET( aad_len == 0 || aad != NULL ); - CHACHAPOLY_VALIDATE_RET( length == 0 || input != NULL ); - CHACHAPOLY_VALIDATE_RET( length == 0 || output != NULL ); - - if( ( ret = chachapoly_crypt_and_tag( ctx, - MBEDTLS_CHACHAPOLY_DECRYPT, length, nonce, - aad, aad_len, input, output, check_tag ) ) != 0 ) - { - return( ret ); - } - - /* Check tag in "constant-time" */ - for( diff = 0, i = 0; i < sizeof( check_tag ); i++ ) - diff |= tag[i] ^ check_tag[i]; - - if( diff != 0 ) - { - mbedtls_platform_zeroize( output, length ); - return( MBEDTLS_ERR_CHACHAPOLY_AUTH_FAILED ); - } - - return( 0 ); -} - -#endif /* MBEDTLS_CHACHAPOLY_ALT */ - -#if defined(MBEDTLS_SELF_TEST) - -static const unsigned char test_key[1][32] = -{ - { - 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, - 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, - 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, - 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f - } -}; - -static const unsigned char test_nonce[1][12] = -{ - { - 0x07, 0x00, 0x00, 0x00, /* 32-bit common part */ - 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47 /* 64-bit IV */ - } -}; - -static const unsigned char test_aad[1][12] = -{ - { - 0x50, 0x51, 0x52, 0x53, 0xc0, 0xc1, 0xc2, 0xc3, - 0xc4, 0xc5, 0xc6, 0xc7 - } -}; - -static const size_t test_aad_len[1] = -{ - 12U -}; - -static const unsigned char test_input[1][114] = -{ - { - 0x4c, 0x61, 0x64, 0x69, 0x65, 0x73, 0x20, 0x61, - 0x6e, 0x64, 0x20, 0x47, 0x65, 0x6e, 0x74, 0x6c, - 0x65, 0x6d, 0x65, 0x6e, 0x20, 0x6f, 0x66, 0x20, - 0x74, 0x68, 0x65, 0x20, 0x63, 0x6c, 0x61, 0x73, - 0x73, 0x20, 0x6f, 0x66, 0x20, 0x27, 0x39, 0x39, - 0x3a, 0x20, 0x49, 0x66, 0x20, 0x49, 0x20, 0x63, - 0x6f, 0x75, 0x6c, 0x64, 0x20, 0x6f, 0x66, 0x66, - 0x65, 0x72, 0x20, 0x79, 0x6f, 0x75, 0x20, 0x6f, - 0x6e, 0x6c, 0x79, 0x20, 0x6f, 0x6e, 0x65, 0x20, - 0x74, 0x69, 0x70, 0x20, 0x66, 0x6f, 0x72, 0x20, - 0x74, 0x68, 0x65, 0x20, 0x66, 0x75, 0x74, 0x75, - 0x72, 0x65, 0x2c, 0x20, 0x73, 0x75, 0x6e, 0x73, - 0x63, 0x72, 0x65, 0x65, 0x6e, 0x20, 0x77, 0x6f, - 0x75, 0x6c, 0x64, 0x20, 0x62, 0x65, 0x20, 0x69, - 0x74, 0x2e - } -}; - -static const unsigned char test_output[1][114] = -{ - { - 0xd3, 0x1a, 0x8d, 0x34, 0x64, 0x8e, 0x60, 0xdb, - 0x7b, 0x86, 0xaf, 0xbc, 0x53, 0xef, 0x7e, 0xc2, - 0xa4, 0xad, 0xed, 0x51, 0x29, 0x6e, 0x08, 0xfe, - 0xa9, 0xe2, 0xb5, 0xa7, 0x36, 0xee, 0x62, 0xd6, - 0x3d, 0xbe, 0xa4, 0x5e, 0x8c, 0xa9, 0x67, 0x12, - 0x82, 0xfa, 0xfb, 0x69, 0xda, 0x92, 0x72, 0x8b, - 0x1a, 0x71, 0xde, 0x0a, 0x9e, 0x06, 0x0b, 0x29, - 0x05, 0xd6, 0xa5, 0xb6, 0x7e, 0xcd, 0x3b, 0x36, - 0x92, 0xdd, 0xbd, 0x7f, 0x2d, 0x77, 0x8b, 0x8c, - 0x98, 0x03, 0xae, 0xe3, 0x28, 0x09, 0x1b, 0x58, - 0xfa, 0xb3, 0x24, 0xe4, 0xfa, 0xd6, 0x75, 0x94, - 0x55, 0x85, 0x80, 0x8b, 0x48, 0x31, 0xd7, 0xbc, - 0x3f, 0xf4, 0xde, 0xf0, 0x8e, 0x4b, 0x7a, 0x9d, - 0xe5, 0x76, 0xd2, 0x65, 0x86, 0xce, 0xc6, 0x4b, - 0x61, 0x16 - } -}; - -static const size_t test_input_len[1] = -{ - 114U -}; - -static const unsigned char test_mac[1][16] = -{ - { - 0x1a, 0xe1, 0x0b, 0x59, 0x4f, 0x09, 0xe2, 0x6a, - 0x7e, 0x90, 0x2e, 0xcb, 0xd0, 0x60, 0x06, 0x91 - } -}; - -/* Make sure no other definition is already present. */ -#undef ASSERT - -#define ASSERT( cond, args ) \ - do \ - { \ - if( ! ( cond ) ) \ - { \ - if( verbose != 0 ) \ - mbedtls_printf args; \ - \ - return( -1 ); \ - } \ - } \ - while( 0 ) - -int mbedtls_chachapoly_self_test( int verbose ) -{ - mbedtls_chachapoly_context ctx; - unsigned i; - int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - unsigned char output[200]; - unsigned char mac[16]; - - for( i = 0U; i < 1U; i++ ) - { - if( verbose != 0 ) - mbedtls_printf( " ChaCha20-Poly1305 test %u ", i ); - - mbedtls_chachapoly_init( &ctx ); - - ret = mbedtls_chachapoly_setkey( &ctx, test_key[i] ); - ASSERT( 0 == ret, ( "setkey() error code: %i\n", ret ) ); - - ret = mbedtls_chachapoly_encrypt_and_tag( &ctx, - test_input_len[i], - test_nonce[i], - test_aad[i], - test_aad_len[i], - test_input[i], - output, - mac ); - - ASSERT( 0 == ret, ( "crypt_and_tag() error code: %i\n", ret ) ); - - ASSERT( 0 == memcmp( output, test_output[i], test_input_len[i] ), - ( "failure (wrong output)\n" ) ); - - ASSERT( 0 == memcmp( mac, test_mac[i], 16U ), - ( "failure (wrong MAC)\n" ) ); - - mbedtls_chachapoly_free( &ctx ); - - if( verbose != 0 ) - mbedtls_printf( "passed\n" ); - } - - if( verbose != 0 ) - mbedtls_printf( "\n" ); - - return( 0 ); -} - -#endif /* MBEDTLS_SELF_TEST */ - -#endif /* MBEDTLS_CHACHAPOLY_C */ -- cgit v1.2.3