1 files changed, 50 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/mac/poly1305/poly1305.h b/comm/third_party/botan/src/lib/mac/poly1305/poly1305.h
new file mode 100644
index 0000000000..fdd01ecd1a
--- /dev/null
+++ b/comm/third_party/botan/src/lib/mac/poly1305/poly1305.h
@@ -0,0 +1,50 @@
+/*
+* Poly1305
+* (C) 2014 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_MAC_POLY1305_H_
+#define BOTAN_MAC_POLY1305_H_
+
+#include <botan/mac.h>
+#include <memory>
+
+BOTAN_FUTURE_INTERNAL_HEADER(poly1305.h)
+
+namespace Botan {
+
+/**
+* DJB's Poly1305
+* Important note: each key can only be used once
+*/
+class BOTAN_PUBLIC_API(2,0) Poly1305 final : public MessageAuthenticationCode
+   {
+   public:
+      std::string name() const override { return "Poly1305"; }
+
+      MessageAuthenticationCode* clone() const override { return new Poly1305; }
+
+      void clear() override;
+
+      size_t output_length() const override { return 16; }
+
+      Key_Length_Specification key_spec() const override
+         {
+         return Key_Length_Specification(32);
+         }
+
+   private:
+      void add_data(const uint8_t[], size_t) override;
+      void final_result(uint8_t[]) override;
+      void key_schedule(const uint8_t[], size_t) override;
+
+      secure_vector<uint64_t> m_poly;
+      secure_vector<uint8_t> m_buf;
+      size_t m_buf_pos = 0;
+   };
+
+}
+
+#endif