1 files changed, 43 insertions, 0 deletions
diff --git a/comm/third_party/botan/src/lib/kdf/kdf2/kdf2.h b/comm/third_party/botan/src/lib/kdf/kdf2/kdf2.h
new file mode 100644
index 0000000000..43abbf087e
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+++ b/comm/third_party/botan/src/lib/kdf/kdf2/kdf2.h
@@ -0,0 +1,43 @@
+/*
+* KDF2
+* (C) 1999-2007 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_KDF2_H_
+#define BOTAN_KDF2_H_
+
+#include <botan/kdf.h>
+#include <botan/hash.h>
+
+BOTAN_FUTURE_INTERNAL_HEADER(kdf2.h)
+
+namespace Botan {
+
+/**
+* KDF2, from IEEE 1363
+*/
+class BOTAN_PUBLIC_API(2,0) KDF2 final : public KDF
+   {
+   public:
+      std::string name() const override { return "KDF2(" + m_hash->name() + ")"; }
+
+      KDF* clone() const override { return new KDF2(m_hash->clone()); }
+
+      size_t kdf(uint8_t key[], size_t key_len,
+                 const uint8_t secret[], size_t secret_len,
+                 const uint8_t salt[], size_t salt_len,
+                 const uint8_t label[], size_t label_len) const override;
+
+      /**
+      * @param h hash function to use
+      */
+      explicit KDF2(HashFunction* h) : m_hash(h) {}
+   private:
+      std::unique_ptr<HashFunction> m_hash;
+   };
+
+}
+
+#endif