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-rw-r--r--src/libs/3rdparty/botan/src/lib/modes/mode_pad/mode_pad.cpp203
1 files changed, 0 insertions, 203 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/modes/mode_pad/mode_pad.cpp b/src/libs/3rdparty/botan/src/lib/modes/mode_pad/mode_pad.cpp
deleted file mode 100644
index e65114c880..0000000000
--- a/src/libs/3rdparty/botan/src/lib/modes/mode_pad/mode_pad.cpp
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
-* CBC Padding Methods
-* (C) 1999-2007,2013,2018 Jack Lloyd
-* (C) 2016 René Korthaus, Rohde & Schwarz Cybersecurity
-*
-* Botan is released under the Simplified BSD License (see license.txt)
-*/
-
-#include <botan/mode_pad.h>
-#include <botan/exceptn.h>
-#include <botan/internal/ct_utils.h>
-
-namespace Botan {
-
-/**
-* Get a block cipher padding method by name
-*/
-BlockCipherModePaddingMethod* get_bc_pad(const std::string& algo_spec)
- {
- if(algo_spec == "NoPadding")
- return new Null_Padding;
-
- if(algo_spec == "PKCS7")
- return new PKCS7_Padding;
-
- if(algo_spec == "OneAndZeros")
- return new OneAndZeros_Padding;
-
- if(algo_spec == "X9.23")
- return new ANSI_X923_Padding;
-
- if(algo_spec == "ESP")
- return new ESP_Padding;
-
- return nullptr;
- }
-
-/*
-* Pad with PKCS #7 Method
-*/
-void PKCS7_Padding::add_padding(secure_vector<uint8_t>& buffer,
- size_t last_byte_pos,
- size_t block_size) const
- {
- const uint8_t pad_value = static_cast<uint8_t>(block_size - last_byte_pos);
-
- for(size_t i = 0; i != pad_value; ++i)
- buffer.push_back(pad_value);
- }
-
-/*
-* Unpad with PKCS #7 Method
-*/
-size_t PKCS7_Padding::unpad(const uint8_t input[], size_t input_length) const
- {
- if(input_length <= 2)
- return input_length;
-
- CT::poison(input, input_length);
- size_t bad_input = 0;
- const uint8_t last_byte = input[input_length-1];
-
- bad_input |= CT::expand_mask<size_t>(last_byte > input_length);
-
- const size_t pad_pos = input_length - last_byte;
-
- for(size_t i = 0; i != input_length - 1; ++i)
- {
- const uint8_t in_range = CT::expand_mask<uint8_t>(i >= pad_pos);
- bad_input |= in_range & (~CT::is_equal(input[i], last_byte));
- }
-
- CT::unpoison(input, input_length);
- return CT::conditional_return(bad_input, input_length, pad_pos);
- }
-
-/*
-* Pad with ANSI X9.23 Method
-*/
-void ANSI_X923_Padding::add_padding(secure_vector<uint8_t>& buffer,
- size_t last_byte_pos,
- size_t block_size) const
- {
- const uint8_t pad_value = static_cast<uint8_t>(block_size - last_byte_pos);
-
- for(size_t i = last_byte_pos; i < block_size-1; ++i)
- {
- buffer.push_back(0);
- }
- buffer.push_back(pad_value);
- }
-
-/*
-* Unpad with ANSI X9.23 Method
-*/
-size_t ANSI_X923_Padding::unpad(const uint8_t input[], size_t input_length) const
- {
- if(input_length <= 2)
- return input_length;
-
- CT::poison(input, input_length);
- const size_t last_byte = input[input_length-1];
-
- uint8_t bad_input = 0;
- bad_input |= CT::expand_mask<uint8_t>(last_byte > input_length);
-
- const size_t pad_pos = input_length - last_byte;
-
- for(size_t i = 0; i != input_length - 1; ++i)
- {
- const uint8_t in_range = CT::expand_mask<uint8_t>(i >= pad_pos);
- bad_input |= CT::expand_mask(input[i]) & in_range;
- }
-
- CT::unpoison(input, input_length);
- return CT::conditional_return(bad_input, input_length, pad_pos);
- }
-
-/*
-* Pad with One and Zeros Method
-*/
-void OneAndZeros_Padding::add_padding(secure_vector<uint8_t>& buffer,
- size_t last_byte_pos,
- size_t block_size) const
- {
- buffer.push_back(0x80);
-
- for(size_t i = last_byte_pos + 1; i % block_size; ++i)
- buffer.push_back(0x00);
- }
-
-/*
-* Unpad with One and Zeros Method
-*/
-size_t OneAndZeros_Padding::unpad(const uint8_t input[], size_t input_length) const
- {
- if(input_length <= 2)
- return input_length;
-
- CT::poison(input, input_length);
-
- uint8_t bad_input = 0;
- uint8_t seen_one = 0;
- size_t pad_pos = input_length - 1;
- size_t i = input_length;
-
- while(i)
- {
- seen_one |= CT::is_equal<uint8_t>(input[i-1], 0x80);
- pad_pos -= CT::select<uint8_t>(~seen_one, 1, 0);
- bad_input |= ~CT::is_zero<uint8_t>(input[i-1]) & ~seen_one;
- i--;
- }
- bad_input |= ~seen_one;
-
- CT::unpoison(input, input_length);
- return CT::conditional_return(bad_input, input_length, pad_pos);
- }
-
-/*
-* Pad with ESP Padding Method
-*/
-void ESP_Padding::add_padding(secure_vector<uint8_t>& buffer,
- size_t last_byte_pos,
- size_t block_size) const
- {
- uint8_t pad_value = 0x01;
-
- for(size_t i = last_byte_pos; i < block_size; ++i)
- {
- buffer.push_back(pad_value++);
- }
- }
-
-/*
-* Unpad with ESP Padding Method
-*/
-size_t ESP_Padding::unpad(const uint8_t input[], size_t input_length) const
- {
- if(input_length <= 2)
- return input_length;
-
- CT::poison(input, input_length);
-
- const size_t last_byte = input[input_length-1];
- uint8_t bad_input = 0;
- bad_input |= CT::is_zero(last_byte) | CT::expand_mask<uint8_t>(last_byte > input_length);
-
- const size_t pad_pos = input_length - last_byte;
- size_t i = input_length - 1;
- while(i)
- {
- const uint8_t in_range = CT::expand_mask<uint8_t>(i > pad_pos);
- bad_input |= (~CT::is_equal<uint8_t>(input[i-1], input[i]-1)) & in_range;
- --i;
- }
-
- CT::unpoison(input, input_length);
- return CT::conditional_return(bad_input, input_length, pad_pos);
- }
-
-
-}