From 30e9097985656920f01a72efc1088caa2b8d41b3 Mon Sep 17 00:00:00 2001 From: bertagaz Date: Tue, 14 Jun 2011 15:26:19 +0200 Subject: Imported Upstream version 0.5.29 --- embeddedcryptopp/hex.cpp | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 embeddedcryptopp/hex.cpp (limited to 'embeddedcryptopp/hex.cpp') diff --git a/embeddedcryptopp/hex.cpp b/embeddedcryptopp/hex.cpp new file mode 100644 index 0000000..b6484a5 --- /dev/null +++ b/embeddedcryptopp/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 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