40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
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// base32.cpp - written and placed in the public domain by Frank Palazzolo, based on hex.cpp by Wei Dai
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#include "pch.h"
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#include "base32.h"
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NAMESPACE_BEGIN(CryptoPP)
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static const byte s_vecUpper[] = "ABCDEFGHIJKMNPQRSTUVWXYZ23456789";
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static const byte s_vecLower[] = "abcdefghijkmnpqrstuvwxyz23456789";
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void Base32Encoder::IsolatedInitialize(const NameValuePairs ¶meters)
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{
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bool uppercase = parameters.GetValueWithDefault(Name::Uppercase(), true);
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m_filter->Initialize(CombinedNameValuePairs(
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parameters,
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MakeParameters(Name::EncodingLookupArray(), uppercase ? &s_vecUpper[0] : &s_vecLower[0], false)(Name::Log2Base(), 5, true)));
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}
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void Base32Decoder::IsolatedInitialize(const NameValuePairs ¶meters)
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{
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BaseN_Decoder::Initialize(CombinedNameValuePairs(
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parameters,
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MakeParameters(Name::DecodingLookupArray(), GetDefaultDecodingLookupArray(), false)(Name::Log2Base(), 5, true)));
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}
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const int *Base32Decoder::GetDefaultDecodingLookupArray()
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{
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static volatile bool s_initialized = false;
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static int s_array[256];
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if (!s_initialized)
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{
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InitializeDecodingLookupArray(s_array, s_vecUpper, 32, true);
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s_initialized = true;
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}
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return s_array;
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}
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NAMESPACE_END
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