1 files changed, 127 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/codec/base32/base32.h b/comm/third_party/botan/src/lib/codec/base32/base32.h
new file mode 100644
index 0000000000..d2bcb3e6ab
--- /dev/null
+++ b/comm/third_party/botan/src/lib/codec/base32/base32.h
@@ -0,0 +1,127 @@
+/*
+* Base32 Encoding and Decoding
+* (C) 2018 Erwan Chaussy
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_BASE32_CODEC_H_
+#define BOTAN_BASE32_CODEC_H_
+
+#include <botan/secmem.h>
+#include <string>
+
+namespace Botan {
+
+/**
+* Perform base32 encoding
+* @param output an array of at least base32_encode_max_output bytes
+* @param input is some binary data
+* @param input_length length of input in bytes
+* @param input_consumed is an output parameter which says how many
+*        bytes of input were actually consumed. If less than
+*        input_length, then the range input[consumed:length]
+*        should be passed in later along with more input.
+* @param final_inputs true iff this is the last input, in which case
+         padding chars will be applied if needed
+* @return number of bytes written to output
+*/
+size_t BOTAN_PUBLIC_API(2, 7) base32_encode(char output[],
+      const uint8_t input[],
+      size_t input_length,
+      size_t& input_consumed,
+      bool final_inputs);
+
+/**
+* Perform base32 encoding
+* @param input some input
+* @param input_length length of input in bytes
+* @return base32 representation of input
+*/
+std::string BOTAN_PUBLIC_API(2, 7) base32_encode(const uint8_t input[],
+      size_t input_length);
+
+/**
+* Perform base32 encoding
+* @param input some input
+* @return base32 representation of input
+*/
+template <typename Alloc>
+std::string base32_encode(const std::vector<uint8_t, Alloc>& input)
+   {
+   return base32_encode(input.data(), input.size());
+   }
+
+/**
+* Perform base32 decoding
+* @param output an array of at least base32_decode_max_output bytes
+* @param input some base32 input
+* @param input_length length of input in bytes
+* @param input_consumed is an output parameter which says how many
+*        bytes of input were actually consumed. If less than
+*        input_length, then the range input[consumed:length]
+*        should be passed in later along with more input.
+* @param final_inputs true iff this is the last input, in which case
+         padding is allowed
+* @param ignore_ws ignore whitespace on input; if false, throw an
+                   exception if whitespace is encountered
+* @return number of bytes written to output
+*/
+size_t BOTAN_PUBLIC_API(2, 7) base32_decode(uint8_t output[],
+      const char input[],
+      size_t input_length,
+      size_t& input_consumed,
+      bool final_inputs,
+      bool ignore_ws = true);
+
+/**
+* Perform base32 decoding
+* @param output an array of at least base32_decode_max_output bytes
+* @param input some base32 input
+* @param input_length length of input in bytes
+* @param ignore_ws ignore whitespace on input; if false, throw an
+                   exception if whitespace is encountered
+* @return number of bytes written to output
+*/
+size_t BOTAN_PUBLIC_API(2, 7) base32_decode(uint8_t output[],
+      const char input[],
+      size_t input_length,
+      bool ignore_ws = true);
+
+/**
+* Perform base32 decoding
+* @param output an array of at least base32_decode_max_output bytes
+* @param input some base32 input
+* @param ignore_ws ignore whitespace on input; if false, throw an
+                   exception if whitespace is encountered
+* @return number of bytes written to output
+*/
+size_t BOTAN_PUBLIC_API(2, 7) base32_decode(uint8_t output[],
+      const std::string& input,
+      bool ignore_ws = true);
+
+/**
+* Perform base32 decoding
+* @param input some base32 input
+* @param input_length the length of input in bytes
+* @param ignore_ws ignore whitespace on input; if false, throw an
+                   exception if whitespace is encountered
+* @return decoded base32 output
+*/
+secure_vector<uint8_t> BOTAN_PUBLIC_API(2, 7) base32_decode(const char input[],
+      size_t input_length,
+      bool ignore_ws = true);
+
+/**
+* Perform base32 decoding
+* @param input some base32 input
+* @param ignore_ws ignore whitespace on input; if false, throw an
+                   exception if whitespace is encountered
+* @return decoded base32 output
+*/
+secure_vector<uint8_t> BOTAN_PUBLIC_API(2, 7) base32_decode(const std::string& input,
+      bool ignore_ws = true);
+
+} // namespace Botan
+
+#endif