Add a new interface CryptoBox which provides basic password-based encryption

in a reasonable way. Low on features, which is rather intentional. There
is a version code included in the format so further extensions are possible, if
warranted.

Inspired by the n-th mailing list request for such a class. Realized it was
probably better that I design such code than random people who just want
'something that works'.

1 files changed, 42 insertions, 0 deletions

diff --git a/src/cryptobox/cryptobox.h b/src/cryptobox/cryptobox.h
new file mode 100644
index 000000000..a30cb244a
--- /dev/null
+++ b/src/cryptobox/cryptobox.h
@@ -0,0 +1,42 @@
+/*
+* Cryptobox Message Routines
+* (C) 2009 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_CRYPTOBOX_H__
+#define BOTAN_CRYPTOBOX_H__
+
+#include <string>
+#include <botan/rng.h>
+
+namespace Botan {
+
+namespace CryptoBox {
+
+/**
+* Encrypt a message
+* @param input the input data
+* @param input_len the length of input in bytes
+* @param passphrase the passphrase used to encrypt the message
+* @param rng a ref to a random number generator, such as AutoSeeded_RNG
+*/
+BOTAN_DLL std::string encrypt(const byte input[], u32bit input_len,
+                              const std::string& passphrase,
+                              RandomNumberGenerator& rng);
+
+/**
+* Decrypt a message encrypted with CryptoBox::encrypt
+* @param input the input data
+* @param input_len the length of input in bytes
+* @param passphrase the passphrase used to encrypt the message
+*/
+BOTAN_DLL std::string decrypt(const byte input[], u32bit input_len,
+                              const std::string& passphrase);
+
+}
+
+}
+
+#endif