1 files changed, 97 insertions, 0 deletions
diff --git a/include/emsa.h b/include/emsa.h
new file mode 100644
index 000000000..2abd72c28
--- /dev/null
+++ b/include/emsa.h
@@ -0,0 +1,97 @@
+/*************************************************
+* EMSA Header File                               *
+* (C) 1999-2006 The Botan Project                *
+*************************************************/
+
+#ifndef BOTAN_EMSA_H__
+#define BOTAN_EMSA_H__
+
+#include <botan/pk_util.h>
+
+namespace Botan {
+
+/*************************************************
+* EMSA1                                          *
+*************************************************/
+class EMSA1 : public EMSA
+   {
+   public:
+      EMSA1(const std::string&);
+      ~EMSA1() { delete hash; }
+   private:
+      void update(const byte[], u32bit);
+      SecureVector<byte> encoding_of(const MemoryRegion<byte>&, u32bit);
+      SecureVector<byte> raw_data();
+      bool verify(const MemoryRegion<byte>&, const MemoryRegion<byte>&,
+                  u32bit) throw();
+      HashFunction* hash;
+   };
+
+/*************************************************
+* EMSA2                                          *
+*************************************************/
+class EMSA2 : public EMSA
+   {
+   public:
+      EMSA2(const std::string&);
+      ~EMSA2() { delete hash; }
+   private:
+      void update(const byte[], u32bit);
+      SecureVector<byte> encoding_of(const MemoryRegion<byte>&, u32bit);
+      SecureVector<byte> raw_data();
+      SecureVector<byte> empty_hash;
+      HashFunction* hash;
+      byte hash_id;
+   };
+
+/*************************************************
+* EMSA3                                          *
+*************************************************/
+class EMSA3 : public EMSA
+   {
+   public:
+      EMSA3(const std::string&);
+      ~EMSA3() { delete hash; }
+   private:
+      void update(const byte[], u32bit);
+      SecureVector<byte> encoding_of(const MemoryRegion<byte>&, u32bit);
+      SecureVector<byte> raw_data();
+      HashFunction* hash;
+      SecureVector<byte> hash_id;
+   };
+
+/*************************************************
+* EMSA4                                          *
+*************************************************/
+class EMSA4 : public EMSA
+   {
+   public:
+      EMSA4(const std::string&, const std::string&);
+      EMSA4(const std::string&, const std::string&, u32bit);
+      ~EMSA4() { delete hash; delete mgf; }
+   private:
+      void update(const byte[], u32bit);
+      SecureVector<byte> encoding_of(const MemoryRegion<byte>&, u32bit);
+      SecureVector<byte> raw_data();
+      bool verify(const MemoryRegion<byte>&, const MemoryRegion<byte>&,
+                  u32bit) throw();
+      const u32bit SALT_SIZE;
+      HashFunction* hash;
+      const MGF* mgf;
+   };
+
+/*************************************************
+* EMSA-Raw                                       *
+*************************************************/
+class EMSA_Raw : public EMSA
+   {
+   private:
+      void update(const byte[], u32bit);
+      SecureVector<byte> encoding_of(const MemoryRegion<byte>&, u32bit);
+      SecureVector<byte> raw_data();
+      SecureVector<byte> message;
+   };
+
+}
+
+#endif