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authorAlexander Harkness <bearbin@gmail.com>2013-11-24 15:21:13 +0100
committerAlexander Harkness <bearbin@gmail.com>2013-11-24 15:21:13 +0100
commit3438e5d3ddf8444f0e31009ffbe8237ef3752c22 (patch)
tree7c2f76d5e9281c130e60fb932c4dda89a49863b6 /CryptoPP/basecode.cpp
parentMoved source to src (diff)
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Diffstat (limited to 'CryptoPP/basecode.cpp')
-rw-r--r--CryptoPP/basecode.cpp238
1 files changed, 0 insertions, 238 deletions
diff --git a/CryptoPP/basecode.cpp b/CryptoPP/basecode.cpp
deleted file mode 100644
index 0c98b2271..000000000
--- a/CryptoPP/basecode.cpp
+++ /dev/null
@@ -1,238 +0,0 @@
-// basecode.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-
-#ifndef CRYPTOPP_IMPORTS
-
-#include "basecode.h"
-#include "fltrimpl.h"
-#include <ctype.h>
-
-NAMESPACE_BEGIN(CryptoPP)
-
-void BaseN_Encoder::IsolatedInitialize(const NameValuePairs &parameters)
-{
- parameters.GetRequiredParameter("BaseN_Encoder", Name::EncodingLookupArray(), m_alphabet);
-
- parameters.GetRequiredIntParameter("BaseN_Encoder", Name::Log2Base(), m_bitsPerChar);
- if (m_bitsPerChar <= 0 || m_bitsPerChar >= 8)
- throw InvalidArgument("BaseN_Encoder: Log2Base must be between 1 and 7 inclusive");
-
- byte padding;
- bool pad;
- if (parameters.GetValue(Name::PaddingByte(), padding))
- pad = parameters.GetValueWithDefault(Name::Pad(), true);
- else
- pad = false;
- m_padding = pad ? padding : -1;
-
- m_bytePos = m_bitPos = 0;
-
- int i = 8;
- while (i%m_bitsPerChar != 0)
- i += 8;
- m_outputBlockSize = i/m_bitsPerChar;
-
- m_outBuf.New(m_outputBlockSize);
-}
-
-size_t BaseN_Encoder::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
-{
- FILTER_BEGIN;
- while (m_inputPosition < length)
- {
- if (m_bytePos == 0)
- memset(m_outBuf, 0, m_outputBlockSize);
-
- {
- unsigned int b = begin[m_inputPosition++], bitsLeftInSource = 8;
- while (true)
- {
- assert(m_bitPos < m_bitsPerChar);
- unsigned int bitsLeftInTarget = m_bitsPerChar-m_bitPos;
- m_outBuf[m_bytePos] |= b >> (8-bitsLeftInTarget);
- if (bitsLeftInSource >= bitsLeftInTarget)
- {
- m_bitPos = 0;
- ++m_bytePos;
- bitsLeftInSource -= bitsLeftInTarget;
- if (bitsLeftInSource == 0)
- break;
- b <<= bitsLeftInTarget;
- b &= 0xff;
- }
- else
- {
- m_bitPos += bitsLeftInSource;
- break;
- }
- }
- }
-
- assert(m_bytePos <= m_outputBlockSize);
- if (m_bytePos == m_outputBlockSize)
- {
- int i;
- for (i=0; i<m_bytePos; i++)
- {
- assert(m_outBuf[i] < (1 << m_bitsPerChar));
- m_outBuf[i] = m_alphabet[m_outBuf[i]];
- }
- FILTER_OUTPUT(1, m_outBuf, m_outputBlockSize, 0);
-
- m_bytePos = m_bitPos = 0;
- }
- }
- if (messageEnd)
- {
- if (m_bitPos > 0)
- ++m_bytePos;
-
- int i;
- for (i=0; i<m_bytePos; i++)
- m_outBuf[i] = m_alphabet[m_outBuf[i]];
-
- if (m_padding != -1 && m_bytePos > 0)
- {
- memset(m_outBuf+m_bytePos, m_padding, m_outputBlockSize-m_bytePos);
- m_bytePos = m_outputBlockSize;
- }
- FILTER_OUTPUT(2, m_outBuf, m_bytePos, messageEnd);
- m_bytePos = m_bitPos = 0;
- }
- FILTER_END_NO_MESSAGE_END;
-}
-
-void BaseN_Decoder::IsolatedInitialize(const NameValuePairs &parameters)
-{
- parameters.GetRequiredParameter("BaseN_Decoder", Name::DecodingLookupArray(), m_lookup);
-
- parameters.GetRequiredIntParameter("BaseN_Decoder", Name::Log2Base(), m_bitsPerChar);
- if (m_bitsPerChar <= 0 || m_bitsPerChar >= 8)
- throw InvalidArgument("BaseN_Decoder: Log2Base must be between 1 and 7 inclusive");
-
- m_bytePos = m_bitPos = 0;
-
- int i = m_bitsPerChar;
- while (i%8 != 0)
- i += m_bitsPerChar;
- m_outputBlockSize = i/8;
-
- m_outBuf.New(m_outputBlockSize);
-}
-
-size_t BaseN_Decoder::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
-{
- FILTER_BEGIN;
- while (m_inputPosition < length)
- {
- unsigned int value;
- value = m_lookup[begin[m_inputPosition++]];
- if (value >= 256)
- continue;
-
- if (m_bytePos == 0 && m_bitPos == 0)
- memset(m_outBuf, 0, m_outputBlockSize);
-
- {
- int newBitPos = m_bitPos + m_bitsPerChar;
- if (newBitPos <= 8)
- m_outBuf[m_bytePos] |= value << (8-newBitPos);
- else
- {
- m_outBuf[m_bytePos] |= value >> (newBitPos-8);
- m_outBuf[m_bytePos+1] |= value << (16-newBitPos);
- }
-
- m_bitPos = newBitPos;
- while (m_bitPos >= 8)
- {
- m_bitPos -= 8;
- ++m_bytePos;
- }
- }
-
- if (m_bytePos == m_outputBlockSize)
- {
- FILTER_OUTPUT(1, m_outBuf, m_outputBlockSize, 0);
- m_bytePos = m_bitPos = 0;
- }
- }
- if (messageEnd)
- {
- FILTER_OUTPUT(2, m_outBuf, m_bytePos, messageEnd);
- m_bytePos = m_bitPos = 0;
- }
- FILTER_END_NO_MESSAGE_END;
-}
-
-void BaseN_Decoder::InitializeDecodingLookupArray(int *lookup, const byte *alphabet, unsigned int base, bool caseInsensitive)
-{
- std::fill(lookup, lookup+256, -1);
-
- for (unsigned int i=0; i<base; i++)
- {
- if (caseInsensitive && isalpha(alphabet[i]))
- {
- assert(lookup[toupper(alphabet[i])] == -1);
- lookup[toupper(alphabet[i])] = i;
- assert(lookup[tolower(alphabet[i])] == -1);
- lookup[tolower(alphabet[i])] = i;
- }
- else
- {
- assert(lookup[alphabet[i]] == -1);
- lookup[alphabet[i]] = i;
- }
- }
-}
-
-void Grouper::IsolatedInitialize(const NameValuePairs &parameters)
-{
- m_groupSize = parameters.GetIntValueWithDefault(Name::GroupSize(), 0);
- ConstByteArrayParameter separator, terminator;
- if (m_groupSize)
- parameters.GetRequiredParameter("Grouper", Name::Separator(), separator);
- else
- parameters.GetValue(Name::Separator(), separator);
- parameters.GetValue(Name::Terminator(), terminator);
-
- m_separator.Assign(separator.begin(), separator.size());
- m_terminator.Assign(terminator.begin(), terminator.size());
- m_counter = 0;
-}
-
-size_t Grouper::Put2(const byte *begin, size_t length, int messageEnd, bool blocking)
-{
- FILTER_BEGIN;
- if (m_groupSize)
- {
- while (m_inputPosition < length)
- {
- if (m_counter == m_groupSize)
- {
- FILTER_OUTPUT(1, m_separator, m_separator.size(), 0);
- m_counter = 0;
- }
-
- size_t len;
- FILTER_OUTPUT2(2, len = STDMIN(length-m_inputPosition, m_groupSize-m_counter),
- begin+m_inputPosition, len, 0);
- m_inputPosition += len;
- m_counter += len;
- }
- }
- else
- FILTER_OUTPUT(3, begin, length, 0);
-
- if (messageEnd)
- {
- FILTER_OUTPUT(4, m_terminator, m_terminator.size(), messageEnd);
- m_counter = 0;
- }
- FILTER_END_NO_MESSAGE_END
-}
-
-NAMESPACE_END
-
-#endif