From 490d36e65ac24e34e3021c2a0947384aee138c88 Mon Sep 17 00:00:00 2001 From: Malf Furious Date: Wed, 13 Apr 2016 21:05:14 -0400 Subject: Root commit for new Compass repository This is the Alpha version of ComPASS, originally developed sometime in 2014. --- cryptopp562/hex.cpp | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 cryptopp562/hex.cpp (limited to 'cryptopp562/hex.cpp') diff --git a/cryptopp562/hex.cpp b/cryptopp562/hex.cpp new file mode 100644 index 0000000..5731df5 --- /dev/null +++ b/cryptopp562/hex.cpp @@ -0,0 +1,44 @@ +// hex.cpp - written and placed in the public domain by Wei Dai + +#include "pch.h" + +#ifndef CRYPTOPP_IMPORTS + +#include "hex.h" + +NAMESPACE_BEGIN(CryptoPP) + +static const byte s_vecUpper[] = "0123456789ABCDEF"; +static const byte s_vecLower[] = "0123456789abcdef"; + +void HexEncoder::IsolatedInitialize(const NameValuePairs ¶meters) +{ + bool uppercase = parameters.GetValueWithDefault(Name::Uppercase(), true); + m_filter->Initialize(CombinedNameValuePairs( + parameters, + MakeParameters(Name::EncodingLookupArray(), uppercase ? &s_vecUpper[0] : &s_vecLower[0], false)(Name::Log2Base(), 4, true))); +} + +void HexDecoder::IsolatedInitialize(const NameValuePairs ¶meters) +{ + BaseN_Decoder::IsolatedInitialize(CombinedNameValuePairs( + parameters, + MakeParameters(Name::DecodingLookupArray(), GetDefaultDecodingLookupArray(), false)(Name::Log2Base(), 4, true))); +} + +const int *HexDecoder::GetDefaultDecodingLookupArray() +{ + static volatile bool s_initialized = false; + static int s_array[256]; + + if (!s_initialized) + { + InitializeDecodingLookupArray(s_array, s_vecUpper, 16, true); + s_initialized = true; + } + return s_array; +} + +NAMESPACE_END + +#endif -- cgit v1.2.3