Add back from Ajisai 0.5.0 the implementations of the SSLv3 MAC and PRF

and the TLS v1.0 PRF. These were removed from Botan in v1.4.5.

Initially I had felt that since these protocols were specific to SSL/TLS they
should be placed in Ajisai (an SSL/TLS library based on Botan). However upon
further reflection I have realized it is quite possible that other alternate
implementations of SSL/TLS based on Botan would be quite desirable, and so
to make that (a very slightly bit) easier I am adding back the SSL/TLS
functions to Botan, so other SSL/TLS libs can use them directly.

2 files changed, 63 insertions, 5 deletions

diff --git a/include/kdf.h b/include/kdf.h
index 57f1dc047..ad7a11dbe 100644
--- a/include/kdf.h
+++ b/include/kdf.h
@@ -16,11 +16,11 @@ namespace Botan {
 class BOTAN_DLL KDF1 : public KDF
    {
    public:
-      KDF1(const std::string&);
-   private:
       SecureVector<byte> derive(u32bit, const byte[], u32bit,
                                 const byte[], u32bit) const;
 
+      KDF1(const std::string&);
+   private:
       const std::string hash_name;
    };
 
@@ -30,11 +30,11 @@ class BOTAN_DLL KDF1 : public KDF
 class BOTAN_DLL KDF2 : public KDF
    {
    public:
+      SecureVector<byte> derive(u32bit, const byte[], u32bit,
+                                const byte[], u32bit) const;
 
       KDF2(const std::string&);
    private:
-      SecureVector<byte> derive(u32bit, const byte[], u32bit,
-                                const byte[], u32bit) const;
       const std::string hash_name;
    };
 
@@ -44,12 +44,36 @@ class BOTAN_DLL KDF2 : public KDF
 class BOTAN_DLL X942_PRF : public KDF
    {
    public:
+      SecureVector<byte> derive(u32bit, const byte[], u32bit,
+                                const byte[], u32bit) const;
+
       X942_PRF(const std::string&);
    private:
+      std::string key_wrap_oid;
+   };
+
+/*************************************************
+* SSL3 PRF                                       *
+*************************************************/
+class BOTAN_DLL SSL3_PRF : public KDF
+   {
+   public:
       SecureVector<byte> derive(u32bit, const byte[], u32bit,
                                 const byte[], u32bit) const;
+   };
 
-      std::string key_wrap_oid;
+/*************************************************
+* TLS PRF                                        *
+*************************************************/
+class BOTAN_DLL TLS_PRF : public KDF
+   {
+   public:
+      SecureVector<byte> derive(u32bit, const byte[], u32bit,
+                                const byte[], u32bit) const;
+   private:
+      SecureVector<byte> P_hash(const std::string&, u32bit,
+                                const byte[], u32bit,
+                                const byte[], u32bit) const;
    };
 
 }
diff --git a/include/ssl3_mac.h b/include/ssl3_mac.h
new file mode 100644
index 000000000..8ab08c97d
--- /dev/null
+++ b/include/ssl3_mac.h
@@ -0,0 +1,34 @@
+/*************************************************
+* SSL3-MAC Header File                           *
+* (C) 1999-2004 Jack Lloyd                       *
+*************************************************/
+
+#ifndef BOTAN_SSL3_MAC_H__
+#define BOTAN_SSL3_MAC_H__
+
+#include <botan/base.h>
+
+namespace Botan {
+
+/*************************************************
+* SSL3-MAC                                       *
+*************************************************/
+class SSL3_MAC : public MessageAuthenticationCode
+   {
+   public:
+      void clear() throw();
+      std::string name() const;
+      MessageAuthenticationCode* clone() const;
+      SSL3_MAC(const std::string&);
+      ~SSL3_MAC() { delete hash; }
+   private:
+      void add_data(const byte[], u32bit);
+      void final_result(byte[]);
+      void key(const byte[], u32bit);
+      HashFunction* hash;
+      SecureVector<byte> i_key, o_key;
+   };
+
+}
+
+#endif