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-rw-r--r--CryptoPP/base64.cpp42
1 files changed, 42 insertions, 0 deletions
diff --git a/CryptoPP/base64.cpp b/CryptoPP/base64.cpp
new file mode 100644
index 000000000..7571f2b8c
--- /dev/null
+++ b/CryptoPP/base64.cpp
@@ -0,0 +1,42 @@
+// base64.cpp - written and placed in the public domain by Wei Dai
+
+#include "pch.h"
+#include "base64.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+static const byte s_vec[] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+static const byte s_padding = '=';
+
+void Base64Encoder::IsolatedInitialize(const NameValuePairs &parameters)
+{
+ bool insertLineBreaks = parameters.GetValueWithDefault(Name::InsertLineBreaks(), true);
+ int maxLineLength = parameters.GetIntValueWithDefault(Name::MaxLineLength(), 72);
+
+ const char *lineBreak = insertLineBreaks ? "\n" : "";
+
+ m_filter->Initialize(CombinedNameValuePairs(
+ parameters,
+ MakeParameters(Name::EncodingLookupArray(), &s_vec[0], false)
+ (Name::PaddingByte(), s_padding)
+ (Name::GroupSize(), insertLineBreaks ? maxLineLength : 0)
+ (Name::Separator(), ConstByteArrayParameter(lineBreak))
+ (Name::Terminator(), ConstByteArrayParameter(lineBreak))
+ (Name::Log2Base(), 6, true)));
+}
+
+const int *Base64Decoder::GetDecodingLookupArray()
+{
+ static volatile bool s_initialized = false;
+ static int s_array[256];
+
+ if (!s_initialized)
+ {
+ InitializeDecodingLookupArray(s_array, s_vec, 64, false);
+ s_initialized = true;
+ }
+ return s_array;
+}
+
+NAMESPACE_END