1 files changed, 102 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/hash/sha2_64/sha2_64.h b/comm/third_party/botan/src/lib/hash/sha2_64/sha2_64.h
new file mode 100644
index 0000000000..dc5f0dd183
--- /dev/null
+++ b/comm/third_party/botan/src/lib/hash/sha2_64/sha2_64.h
@@ -0,0 +1,102 @@
+/*
+* SHA-{384,512}
+* (C) 1999-2010,2015 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_SHA_64BIT_H_
+#define BOTAN_SHA_64BIT_H_
+
+#include <botan/mdx_hash.h>
+
+BOTAN_FUTURE_INTERNAL_HEADER(sha2_64.h)
+
+namespace Botan {
+
+/**
+* SHA-384
+*/
+class BOTAN_PUBLIC_API(2,0) SHA_384 final : public MDx_HashFunction
+   {
+   public:
+      std::string name() const override { return "SHA-384"; }
+      size_t output_length() const override { return 48; }
+      HashFunction* clone() const override { return new SHA_384; }
+      std::unique_ptr<HashFunction> copy_state() const override;
+      std::string provider() const override;
+
+      void clear() override;
+
+      SHA_384() : MDx_HashFunction(128, true, true, 16), m_digest(8)
+         { clear(); }
+   private:
+      void compress_n(const uint8_t[], size_t blocks) override;
+      void copy_out(uint8_t[]) override;
+
+      secure_vector<uint64_t> m_digest;
+   };
+
+/**
+* SHA-512
+*/
+class BOTAN_PUBLIC_API(2,0) SHA_512 final : public MDx_HashFunction
+   {
+   public:
+      std::string name() const override { return "SHA-512"; }
+      size_t output_length() const override { return 64; }
+      HashFunction* clone() const override { return new SHA_512; }
+      std::unique_ptr<HashFunction> copy_state() const override;
+      std::string provider() const override;
+
+      void clear() override;
+
+      /*
+      * Perform a SHA-512 compression. For internal use
+      */
+      static void compress_digest(secure_vector<uint64_t>& digest,
+                                  const uint8_t input[],
+                                  size_t blocks);
+
+      SHA_512() : MDx_HashFunction(128, true, true, 16), m_digest(8)
+         { clear(); }
+   private:
+      void compress_n(const uint8_t[], size_t blocks) override;
+      void copy_out(uint8_t[]) override;
+
+      static const uint64_t K[80];
+
+#if defined(BOTAN_HAS_SHA2_64_BMI2)
+      static void compress_digest_bmi2(secure_vector<uint64_t>& digest,
+                                       const uint8_t input[],
+                                       size_t blocks);
+#endif
+
+      secure_vector<uint64_t> m_digest;
+   };
+
+/**
+* SHA-512/256
+*/
+class BOTAN_PUBLIC_API(2,0) SHA_512_256 final : public MDx_HashFunction
+   {
+   public:
+      std::string name() const override { return "SHA-512-256"; }
+      size_t output_length() const override { return 32; }
+      HashFunction* clone() const override { return new SHA_512_256; }
+      std::unique_ptr<HashFunction> copy_state() const override;
+      std::string provider() const override;
+
+      void clear() override;
+
+      SHA_512_256() : MDx_HashFunction(128, true, true, 16), m_digest(8) { clear(); }
+   private:
+      void compress_n(const uint8_t[], size_t blocks) override;
+      void copy_out(uint8_t[]) override;
+
+      secure_vector<uint64_t> m_digest;
+   };
+
+}
+
+#endif