1 files changed, 68 insertions, 0 deletions
diff --git a/src/lib/pk_pad/emsa3/emsa3.h b/src/lib/pk_pad/emsa3/emsa3.h
new file mode 100644
index 000000000..9fbda67ee
--- /dev/null
+++ b/src/lib/pk_pad/emsa3/emsa3.h
@@ -0,0 +1,68 @@
+/*
+* EMSA3 and EMSA3_Raw
+* (C) 1999-2008 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_EMSA3_H__
+#define BOTAN_EMSA3_H__
+
+#include <botan/emsa.h>
+#include <botan/hash.h>
+
+namespace Botan {
+
+/**
+* EMSA3 from IEEE 1363
+* aka PKCS #1 v1.5 signature padding
+* aka PKCS #1 block type 1
+*/
+class BOTAN_DLL EMSA3 : public EMSA
+   {
+   public:
+      /**
+      * @param hash the hash object to use
+      */
+      EMSA3(HashFunction* hash);
+      ~EMSA3();
+
+      void update(const byte[], size_t);
+
+      secure_vector<byte> raw_data();
+
+      secure_vector<byte> encoding_of(const secure_vector<byte>&, size_t,
+                                     RandomNumberGenerator& rng);
+
+      bool verify(const secure_vector<byte>&, const secure_vector<byte>&,
+                  size_t);
+   private:
+      HashFunction* hash;
+      std::vector<byte> hash_id;
+   };
+
+/**
+* EMSA3_Raw which is EMSA3 without a hash or digest id (which
+* according to QCA docs is "identical to PKCS#11's CKM_RSA_PKCS
+* mechanism", something I have not confirmed)
+*/
+class BOTAN_DLL EMSA3_Raw : public EMSA
+   {
+   public:
+      void update(const byte[], size_t);
+
+      secure_vector<byte> raw_data();
+
+      secure_vector<byte> encoding_of(const secure_vector<byte>&, size_t,
+                                     RandomNumberGenerator& rng);
+
+      bool verify(const secure_vector<byte>&, const secure_vector<byte>&,
+                  size_t);
+
+   private:
+      secure_vector<byte> message;
+   };
+
+}
+
+#endif