1 files changed, 115 insertions, 0 deletions
diff --git a/botan/src/pubkey/pk_filts.cpp b/botan/src/pubkey/pk_filts.cpp
new file mode 100644
index 0000000..18da9c1
--- /dev/null
+++ b/botan/src/pubkey/pk_filts.cpp
@@ -0,0 +1,115 @@
+/*
+* PK Filters
+* (C) 1999-2009 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <botan/pk_filts.h>
+
+namespace Botan {
+
+/*
+* Append to the buffer
+*/
+void PK_Encryptor_Filter::write(const byte input[], u32bit length)
+   {
+   buffer.append(input, length);
+   }
+
+/*
+* Encrypt the message
+*/
+void PK_Encryptor_Filter::end_msg()
+   {
+   send(cipher->encrypt(buffer, buffer.size(), rng));
+   buffer.destroy();
+   }
+
+/*
+* Append to the buffer
+*/
+void PK_Decryptor_Filter::write(const byte input[], u32bit length)
+   {
+   buffer.append(input, length);
+   }
+
+/*
+* Decrypt the message
+*/
+void PK_Decryptor_Filter::end_msg()
+   {
+   send(cipher->decrypt(buffer, buffer.size()));
+   buffer.destroy();
+   }
+
+/*
+* Add more data
+*/
+void PK_Signer_Filter::write(const byte input[], u32bit length)
+   {
+   signer->update(input, length);
+   }
+
+/*
+* Sign the message
+*/
+void PK_Signer_Filter::end_msg()
+   {
+   send(signer->signature(rng));
+   }
+
+/*
+* Add more data
+*/
+void PK_Verifier_Filter::write(const byte input[], u32bit length)
+   {
+   verifier->update(input, length);
+   }
+
+/*
+* Verify the message
+*/
+void PK_Verifier_Filter::end_msg()
+   {
+   if(signature.is_empty())
+      throw Exception("PK_Verifier_Filter: No signature to check against");
+   bool is_valid = verifier->check_signature(signature, signature.size());
+   send((is_valid ? 1 : 0));
+   }
+
+/*
+* Set the signature to check
+*/
+void PK_Verifier_Filter::set_signature(const byte sig[], u32bit length)
+   {
+   signature.set(sig, length);
+   }
+
+/*
+* Set the signature to check
+*/
+void PK_Verifier_Filter::set_signature(const MemoryRegion<byte>& sig)
+   {
+   signature = sig;
+   }
+
+/*
+* PK_Verifier_Filter Constructor
+*/
+PK_Verifier_Filter::PK_Verifier_Filter(PK_Verifier* v, const byte sig[],
+                                       u32bit length) :
+   verifier(v), signature(sig, length)
+   {
+   }
+
+/*
+* PK_Verifier_Filter Constructor
+*/
+PK_Verifier_Filter::PK_Verifier_Filter(PK_Verifier* v,
+                                       const MemoryRegion<byte>& sig) :
+   verifier(v), signature(sig)
+   {
+   }
+
+}