NIST SP800-108 & 56c

1 files changed, 81 insertions, 0 deletions

diff --git a/src/lib/kdf/sp800_108/sp800_108.h b/src/lib/kdf/sp800_108/sp800_108.h
new file mode 100644
index 000000000..0acdfacf9
--- /dev/null
+++ b/src/lib/kdf/sp800_108/sp800_108.h
@@ -0,0 +1,81 @@
+/*
+* KDFs defined in NIST SP 800-108
+* (C) 2016 Kai Michaelis
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_SP800_108_H__
+#define BOTAN_SP800_108_H__
+
+#include <botan/kdf.h>
+#include <botan/mac.h>
+
+namespace Botan {
+
+/**
+ * NIST SP 800-108 KDF in Counter Mode (5.1)
+ */
+class BOTAN_DLL SP800_108_Counter : public KDF
+   {
+   public:
+      std::string name() const override { return "SP800-108-Counter(" + m_prf->name() + ")"; }
+
+      KDF* clone() const override { return new SP800_108_Counter(m_prf->clone()); }
+
+      size_t kdf(byte key[], size_t key_len,
+                 const byte secret[], size_t secret_len,
+                 const byte salt[], size_t salt_len) const override;
+
+      SP800_108_Counter(MessageAuthenticationCode* mac) : m_prf(mac) {}
+
+      static SP800_108_Counter* make(const Spec& spec);
+   private:
+      std::unique_ptr<MessageAuthenticationCode> m_prf;
+   };
+
+/**
+ * NIST SP 800-108 KDF in Feedback Mode (5.2)
+ */
+class BOTAN_DLL SP800_108_Feedback : public KDF
+   {
+   public:
+      std::string name() const override { return "SP800-108-Feedback(" + m_prf->name() + ")"; }
+
+      KDF* clone() const override { return new SP800_108_Feedback(m_prf->clone()); }
+
+      size_t kdf(byte key[], size_t key_len,
+                 const byte secret[], size_t secret_len,
+                 const byte salt[], size_t salt_len) const override;
+
+      SP800_108_Feedback(MessageAuthenticationCode* mac) : m_prf(mac) {}
+
+      static SP800_108_Feedback* make(const Spec& spec);
+   private:
+      std::unique_ptr<MessageAuthenticationCode> m_prf;
+   };
+
+/**
+ * NIST SP 800-108 KDF in Double Pipeline Mode (5.3)
+ */
+class BOTAN_DLL SP800_108_Pipeline : public KDF
+   {
+   public:
+      std::string name() const override { return "SP800-108-Pipeline(" + m_prf->name() + ")"; }
+
+      KDF* clone() const override { return new SP800_108_Pipeline(m_prf->clone()); }
+
+      size_t kdf(byte key[], size_t key_len,
+                 const byte secret[], size_t secret_len,
+                 const byte salt[], size_t salt_len) const override;
+
+      SP800_108_Pipeline(MessageAuthenticationCode* mac) : m_prf(mac) {}
+
+      static SP800_108_Pipeline* make(const Spec& spec);
+   private:
+      std::unique_ptr<MessageAuthenticationCode> m_prf;
+   };
+
+}
+
+#endif