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-rw-r--r--CryptoPP/base32.cpp39
1 files changed, 39 insertions, 0 deletions
diff --git a/CryptoPP/base32.cpp b/CryptoPP/base32.cpp
new file mode 100644
index 000000000..0568f0729
--- /dev/null
+++ b/CryptoPP/base32.cpp
@@ -0,0 +1,39 @@
+// base32.cpp - written and placed in the public domain by Frank Palazzolo, based on hex.cpp by Wei Dai
+
+#include "pch.h"
+#include "base32.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+static const byte s_vecUpper[] = "ABCDEFGHIJKMNPQRSTUVWXYZ23456789";
+static const byte s_vecLower[] = "abcdefghijkmnpqrstuvwxyz23456789";
+
+void Base32Encoder::IsolatedInitialize(const NameValuePairs &parameters)
+{
+ 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(), 5, true)));
+}
+
+void Base32Decoder::IsolatedInitialize(const NameValuePairs &parameters)
+{
+ BaseN_Decoder::Initialize(CombinedNameValuePairs(
+ parameters,
+ MakeParameters(Name::DecodingLookupArray(), GetDefaultDecodingLookupArray(), false)(Name::Log2Base(), 5, true)));
+}
+
+const int *Base32Decoder::GetDefaultDecodingLookupArray()
+{
+ static volatile bool s_initialized = false;
+ static int s_array[256];
+
+ if (!s_initialized)
+ {
+ InitializeDecodingLookupArray(s_array, s_vecUpper, 32, true);
+ s_initialized = true;
+ }
+ return s_array;
+}
+
+NAMESPACE_END