restructure the project

1 files changed, 0 insertions, 683 deletions

diff --git a/src/box.c b/src/box.c
deleted file mode 100644
index c7e1e90..0000000
--- a/src/box.c
+++ /dev/null
@@ -1,683 +0,0 @@
-/*
- * Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
- * This file is part of the "AES tools" project.
- * For details, see https://github.com/egor-tensin/aes-tools.
- * Distributed under the MIT License.
- */
-
-#include <aes/all.h>
-
-#include <stdlib.h>
-#include <string.h>
-
-static const AES_BoxAlgorithmInterface* aes_box_algorithms[] =
-{
-    &aes_box_algorithm_aes128,
-    &aes_box_algorithm_aes192,
-    &aes_box_algorithm_aes256,
-};
-
-AES_StatusCode aes_box_init(
-    AES_Box* box,
-    AES_Algorithm algorithm,
-    const AES_BoxKey* box_key,
-    AES_Mode mode,
-    const AES_BoxBlock* iv,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    box->algorithm = aes_box_algorithms[algorithm];
-
-    if (aes_is_error(status = box->algorithm->calc_round_keys(
-            box_key,
-            &box->encryption_keys,
-            &box->decryption_keys,
-            err_details)))
-        return status;
-
-    box->mode = mode;
-    if (iv != NULL)
-        box->iv = *iv;
-
-    return status;
-}
-
-static AES_StatusCode aes_box_encrypt_block_ecb(
-    AES_Box* box,
-    const AES_BoxBlock* input,
-    AES_BoxBlock* output,
-    AES_ErrorDetails* err_details)
-{
-    return box->algorithm->encrypt_block(
-        input, &box->encryption_keys, output, err_details);
-}
-
-static AES_StatusCode aes_box_encrypt_block_cbc(
-    AES_Box* box,
-    const AES_BoxBlock* input,
-    AES_BoxBlock* output,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-    AES_BoxBlock xored_input = *input;
-
-    if (aes_is_error(status = box->algorithm->xor_block(
-            &xored_input, &box->iv, err_details)))
-        return status;
-
-    if (aes_is_error(status = box->algorithm->encrypt_block(
-            &xored_input, &box->encryption_keys, output, err_details)))
-        return status;
-
-    box->iv = *output;
-    return status;
-}
-
-static AES_StatusCode aes_box_encrypt_block_cfb(
-    AES_Box* box,
-    const AES_BoxBlock* input,
-    AES_BoxBlock* output,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    if (aes_is_error(status = box->algorithm->encrypt_block(
-            &box->iv, &box->encryption_keys, output, err_details)))
-        return status;
-
-    if (aes_is_error(status = box->algorithm->xor_block(
-            output, input, err_details)))
-        return status;
-
-    box->iv = *output;
-    return status;
-}
-
-static AES_StatusCode aes_box_encrypt_block_ofb(
-    AES_Box* box,
-    const AES_BoxBlock* input,
-    AES_BoxBlock* output,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    if (aes_is_error(status = box->algorithm->encrypt_block(
-            &box->iv, &box->encryption_keys, &box->iv, err_details)))
-        return status;
-
-    *output = box->iv;
-
-    if (aes_is_error(status = box->algorithm->xor_block(
-            output, input, err_details)))
-        return status;
-
-    return status;
-}
-
-static AES_StatusCode aes_box_encrypt_block_ctr(
-    AES_Box* box,
-    const AES_BoxBlock* input,
-    AES_BoxBlock* output,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    if (aes_is_error(status = box->algorithm->encrypt_block(
-            &box->iv, &box->encryption_keys, output, err_details)))
-        return status;
-
-    if (aes_is_error(status = box->algorithm->xor_block(
-            output, input, err_details)))
-        return status;
-
-    if (aes_is_error(status = box->algorithm->inc_block(
-            &box->iv, err_details)))
-        return status;
-
-    return status;
-}
-
-typedef AES_StatusCode (*AES_BoxEncryptBlockInMode)(
-    AES_Box*,
-    const AES_BoxBlock*,
-    AES_BoxBlock*,
-    AES_ErrorDetails*);
-
-static AES_BoxEncryptBlockInMode aes_box_encrypt_block_in_mode[] =
-{
-    &aes_box_encrypt_block_ecb,
-    &aes_box_encrypt_block_cbc,
-    &aes_box_encrypt_block_cfb,
-    &aes_box_encrypt_block_ofb,
-    &aes_box_encrypt_block_ctr,
-};
-
-AES_StatusCode aes_box_encrypt_block(
-    AES_Box* box,
-    const AES_BoxBlock* input,
-    AES_BoxBlock* output,
-    AES_ErrorDetails* err_details)
-{
-    return aes_box_encrypt_block_in_mode[box->mode](
-        box, input, output, err_details);
-}
-
-static AES_StatusCode aes_box_decrypt_block_ecb(
-    AES_Box* box,
-    const AES_BoxBlock* input,
-    AES_BoxBlock* output,
-    AES_ErrorDetails* err_details)
-{
-    return box->algorithm->decrypt_block(
-        input, &box->decryption_keys, output, err_details);
-}
-
-static AES_StatusCode aes_box_decrypt_block_cbc(
-    AES_Box* box,
-    const AES_BoxBlock* input,
-    AES_BoxBlock* output,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    if (aes_is_error(status = box->algorithm->decrypt_block(
-            input, &box->decryption_keys, output, err_details)))
-        return status;
-
-    if (aes_is_error(status = box->algorithm->xor_block(
-            output, &box->iv, err_details)))
-        return status;
-
-    box->iv = *input;
-    return status;
-}
-
-static AES_StatusCode aes_box_decrypt_block_cfb(
-    AES_Box* box,
-    const AES_BoxBlock* input,
-    AES_BoxBlock* output,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    if (aes_is_error(status = box->algorithm->encrypt_block(
-            &box->iv, &box->encryption_keys, output, err_details)))
-        return status;
-
-    if (aes_is_error(status = box->algorithm->xor_block(
-            output, input, err_details)))
-        return status;
-
-    box->iv = *input;
-    return status;
-}
-
-typedef AES_BoxEncryptBlockInMode AES_BoxDecryptBlockInMode;
-
-static AES_BoxDecryptBlockInMode aes_box_decrypt_block_in_mode[] =
-{
-    &aes_box_decrypt_block_ecb,
-    &aes_box_decrypt_block_cbc,
-    &aes_box_decrypt_block_cfb,
-    &aes_box_encrypt_block_ofb,
-    &aes_box_encrypt_block_ctr,
-};
-
-AES_StatusCode aes_box_decrypt_block(
-    AES_Box* box,
-    const AES_BoxBlock* input,
-    AES_BoxBlock* output,
-    AES_ErrorDetails* err_details)
-{
-    return aes_box_decrypt_block_in_mode[box->mode](
-        box, input, output, err_details);
-}
-
-static AES_StatusCode aes_box_get_encrypted_buffer_size(
-    AES_Box* box,
-    size_t src_size,
-    size_t* dest_size,
-    size_t* padding_size,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    switch (box->mode)
-    {
-        case AES_ECB:
-        case AES_CBC:
-        {
-            size_t block_size;
-
-            if (aes_is_error(status = box->algorithm->get_block_size(
-                    &block_size, err_details)))
-                return status;
-
-            *padding_size = block_size - src_size % block_size;
-            *dest_size = src_size + *padding_size;
-            return status;
-        }
-
-        case AES_CFB:
-        case AES_OFB:
-        case AES_CTR:
-            *dest_size = src_size;
-            *padding_size = 0;
-            return status;
-
-        default:
-            return aes_error_not_implemented(
-                err_details, "unsupported mode of operation");
-    }
-}
-
-static AES_StatusCode aes_box_encrypt_buffer_block(
-    AES_Box* box,
-    const void* src,
-    void* dest,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    AES_BoxBlock plaintext;
-
-    if (aes_is_error(status = box->algorithm->load_block(
-            &plaintext, src, err_details)))
-        return status;
-
-    AES_BoxBlock ciphertext;
-
-    if (aes_is_error(status = aes_box_encrypt_block(
-            box, &plaintext, &ciphertext, err_details)))
-        return status;
-
-    if (aes_is_error(status = box->algorithm->store_block(
-            dest, &ciphertext, err_details)))
-        return status;
-
-    return status;
-}
-
-static AES_StatusCode aes_box_encrypt_buffer_partial_block_with_padding(
-    AES_Box* box,
-    const void* src,
-    size_t src_size,
-    void* dest,
-    size_t padding_size,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    size_t block_size;
-
-    if (aes_is_error(status = box->algorithm->get_block_size(
-            &block_size, err_details)))
-        return status;
-
-    void* plaintext_buf = malloc(block_size);
-
-    if (plaintext_buf == NULL)
-        return status = aes_error_memory_allocation(err_details);
-
-    memcpy(plaintext_buf, src, src_size);
-
-    if (aes_is_error(status = aes_fill_with_padding(
-            AES_PADDING_PKCS7,
-            (char*) plaintext_buf + src_size,
-            padding_size,
-            err_details)))
-        goto FREE_PLAINTEXT_BUF;
-
-    if (aes_is_error(status = aes_box_encrypt_buffer_block(
-            box, plaintext_buf, dest, err_details)))
-        goto FREE_PLAINTEXT_BUF;
-
-FREE_PLAINTEXT_BUF:
-    free(plaintext_buf);
-
-    return status;
-}
-
-static AES_StatusCode aes_box_encrypt_buffer_partial_block(
-    AES_Box* box,
-    const void* src,
-    size_t src_size,
-    void* dest,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    if (src_size == 0)
-        return status;
-
-    size_t block_size;
-
-    if (aes_is_error(status = box->algorithm->get_block_size(
-            &block_size, err_details)))
-        return status;
-
-    void* plaintext_buf = malloc(block_size);
-
-    if (plaintext_buf == NULL)
-        return status = aes_error_memory_allocation(err_details);
-
-    memset(plaintext_buf, 0x00, block_size);
-    memcpy(plaintext_buf, src, src_size);
-
-    void* ciphertext_buf = malloc(block_size);
-
-    if (ciphertext_buf == NULL)
-    {
-        status = aes_error_memory_allocation(err_details);
-        goto FREE_PLAINTEXT_BUF;
-    }
-
-    if (aes_is_error(status = aes_box_encrypt_buffer_block(
-            box, plaintext_buf, ciphertext_buf, err_details)))
-        goto FREE_CIPHERTEXT_BUF;
-
-    memcpy(dest, ciphertext_buf, src_size);
-
-FREE_CIPHERTEXT_BUF:
-    free(ciphertext_buf);
-
-FREE_PLAINTEXT_BUF:
-    free(plaintext_buf);
-
-    return status;
-}
-
-AES_StatusCode aes_box_encrypt_buffer(
-    AES_Box* box,
-    const void* src,
-    size_t src_size,
-    void* dest,
-    size_t* dest_size,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    if (box == NULL)
-        return aes_error_null_argument(err_details, "box");
-    if (dest_size == NULL)
-        return aes_error_null_argument(err_details, "dest_size");
-
-    size_t padding_size = 0;
-
-    if (aes_is_error(status = aes_box_get_encrypted_buffer_size(
-            box, src_size, dest_size, &padding_size, err_details)))
-        return status;
-
-    if (dest == NULL)
-        return AES_SUCCESS;
-    if (src == NULL && src_size != 0)
-        return aes_error_null_argument(err_details, "src");
-
-    size_t block_size;
-
-    if (aes_is_error(status = box->algorithm->get_block_size(
-            &block_size, err_details)))
-        return status;
-
-    const size_t src_len = src_size / block_size;
-
-    for (size_t i = 0; i < src_len; ++i)
-    {
-        if (aes_is_error(status = aes_box_encrypt_buffer_block(
-                box, src, dest, err_details)))
-            return status;
-
-        src = (char*) src + block_size;
-        dest = (char*) dest + block_size;
-    }
-
-    if (padding_size == 0)
-        return aes_box_encrypt_buffer_partial_block(
-            box, src, src_size % block_size, dest, err_details);
-    else
-        return aes_box_encrypt_buffer_partial_block_with_padding(
-            box, src, src_size % block_size, dest, padding_size, err_details);
-}
-
-static AES_StatusCode aes_box_get_decrypted_buffer_size(
-    AES_Box* box,
-    size_t src_size,
-    size_t* dest_size,
-    size_t* max_padding_size,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    switch (box->mode)
-    {
-        case AES_ECB:
-        case AES_CBC:
-        {
-            size_t block_size;
-
-            if (aes_is_error(status = box->algorithm->get_block_size(
-                    &block_size, err_details)))
-                return status;
-
-            if (src_size == 0 || src_size % block_size != 0)
-                return aes_error_missing_padding(err_details);
-
-            *dest_size = src_size;
-            *max_padding_size = block_size;
-            return status;
-        }
-
-        case AES_CFB:
-        case AES_OFB:
-        case AES_CTR:
-            *dest_size = src_size;
-            *max_padding_size = 0;
-            return status;
-
-        default:
-            return aes_error_not_implemented(
-                err_details, "unsupported mode of operation");
-    }
-}
-
-static AES_StatusCode aes_box_decrypt_buffer_block(
-    AES_Box* box,
-    const void* src,
-    void* dest,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    AES_BoxBlock ciphertext;
-
-    if (aes_is_error(status = box->algorithm->load_block(
-            &ciphertext, src, err_details)))
-        return status;
-
-    AES_BoxBlock plaintext;
-
-    if (aes_is_error(status = aes_box_decrypt_block(
-            box, &ciphertext, &plaintext, err_details)))
-        return status;
-
-    if (aes_is_error(status = box->algorithm->store_block(
-            dest, &plaintext, err_details)))
-        return status;
-
-    return status;
-}
-
-static AES_StatusCode aes_box_decrypt_buffer_partial_block(
-    AES_Box* box,
-    const void* src,
-    size_t src_size,
-    void* dest,
-    AES_ErrorDetails* err_details)
-{
-    AES_StatusCode status = AES_SUCCESS;
-
-    if (src_size == 0)
-        return status;
-
-    size_t block_size;
-
-    if (aes_is_error(status = box->algorithm->get_block_size(
-            &block_size, err_details)))
-        return status;
-
-    void* ciphertext_buf = malloc(block_size);
-
-    if (ciphertext_buf == NULL)
-        return status = aes_error_memory_allocation(err_details);
-
-    memset(ciphertext_buf, 0x00, block_size);
-    memcpy(ciphertext_buf, src, src_size);
-
-    void* plaintext_buf = malloc(block_size);
-
-    if (plaintext_buf == NULL)
-    {
-        status = aes_error_memory_allocation(err_details);
-        goto FREE_CIPHERTEXT_BUF;
-    }
-
-    if (aes_is_error(status = aes_box_decrypt_buffer_block(
-            box, ciphertext_buf, plaintext_buf, err_details)))
-        goto FREE_PLAINTEXT_BUF;
-
-    memcpy(dest, plaintext_buf, src_size);
-
-FREE_PLAINTEXT_BUF:
-    free(plaintext_buf);
-
-FREE_CIPHERTEXT_BUF:
-    free(ciphertext_buf);
-
-    return status;
-}
-
-AES_StatusCode aes_box_decrypt_buffer(
-    AES_Box* box,
-    const void* src,
-    size_t src_size,
-    void* dest,
-    size_t* dest_size,
-    AES_ErrorDetails* err_details)
-{
-    if (box == NULL)
-        return aes_error_null_argument(err_details, "box");
-    if (dest_size == NULL)
-        return aes_error_null_argument(err_details, "dest_size");
-
-    AES_StatusCode status = AES_SUCCESS;
-    size_t max_padding_size = 0;
-
-    if (aes_is_error(status = aes_box_get_decrypted_buffer_size(
-            box, src_size, dest_size, &max_padding_size, err_details)))
-        return status;
-
-    if (dest == NULL)
-        return AES_SUCCESS;
-    if (src == NULL)
-        return aes_error_null_argument(err_details, "src");
-
-    size_t block_size;
-
-    if (aes_is_error(status = box->algorithm->get_block_size(
-            &block_size, err_details)))
-        return status;
-
-    const size_t src_len = src_size / block_size;
-
-    for (size_t i = 0; i < src_len; ++i)
-    {
-        if (aes_is_error(status = aes_box_decrypt_buffer_block(
-                box, src, dest, err_details)))
-            return status;
-
-        src = (char*) src + block_size;
-        dest = (char*) dest + block_size;
-    }
-
-    if (max_padding_size == 0)
-    {
-        return aes_box_decrypt_buffer_partial_block(
-            box, src, src_size % block_size, dest, err_details);
-    }
-    else
-    {
-        size_t padding_size;
-
-        if (aes_is_error(status = aes_extract_padding_size(
-                AES_PADDING_PKCS7,
-                (char*) dest - block_size,
-                block_size,
-                &padding_size,
-                err_details)))
-            return status;
-
-        *dest_size -= padding_size;
-        return status;
-    }
-}
-
-AES_StatusCode aes_box_parse_block(
-    AES_BoxBlock* dest,
-    AES_Algorithm algorithm,
-    const char* src,
-    AES_ErrorDetails* err_details)
-{
-    if (dest == NULL)
-        return aes_error_null_argument(err_details, "dest");
-    if (src == NULL)
-        return aes_error_null_argument(err_details, "src");
-
-    return aes_box_algorithms[algorithm]->parse_block(
-        dest, src, err_details);
-}
-
-AES_StatusCode aes_box_parse_key(
-    AES_BoxKey* dest,
-    AES_Algorithm algorithm,
-    const char* src,
-    AES_ErrorDetails* err_details)
-{
-    if (dest == NULL)
-        return aes_error_null_argument(err_details, "dest");
-    if (src == NULL)
-        return aes_error_null_argument(err_details, "src");
-
-    return aes_box_algorithms[algorithm]->parse_key(
-        dest, src, err_details);
-}
-
-AES_StatusCode aes_box_format_block(
-    AES_BoxBlockString* dest,
-    AES_Algorithm algorithm,
-    const AES_BoxBlock* src,
-    AES_ErrorDetails* err_details)
-{
-    if (dest == NULL)
-        return aes_error_null_argument(err_details, "dest");
-    if (src == NULL)
-        return aes_error_null_argument(err_details, "src");
-
-    return aes_box_algorithms[algorithm]->format_block(
-        dest, src, err_details);
-}
-
-AES_StatusCode aes_box_format_key(
-    AES_BoxKeyString* dest,
-    AES_Algorithm algorithm,
-    const AES_BoxKey* src,
-    AES_ErrorDetails* err_details)
-{
-    if (dest == NULL)
-        return aes_error_null_argument(err_details, "dest");
-    if (src == NULL)
-        return aes_error_null_argument(err_details, "src");
-
-    return aes_box_algorithms[algorithm]->format_key(
-        dest, src, err_details);
-}