Modify the S2K interface. Instead of being stateful in terms of the salt

and iteration count, force it to be passed to each call to derive_key.
So remove current_salt, set_iterations, new_random_salt, and change_salt
functions from S2K interface.

Update examples and test application to match.

While I was in there, change the passhash example to use 64 bit salts
and 128 bit PBKDF2 outputs.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/s2k/pbkdf2/pbkdf2.cpp b/src/s2k/pbkdf2/pbkdf2.cpp
index 6f790c06b..e7aebbfe2 100644
--- a/src/s2k/pbkdf2/pbkdf2.cpp
+++ b/src/s2k/pbkdf2/pbkdf2.cpp
@@ -14,10 +14,10 @@ namespace Botan {
 /*
 * Return a PKCS#5 PBKDF2 derived key
 */
-OctetString PKCS5_PBKDF2::derive(u32bit key_len,
-                                 const std::string& passphrase,
-                                 const byte salt[], u32bit salt_size,
-                                 u32bit iterations) const
+OctetString PKCS5_PBKDF2::derive_key(u32bit key_len,
+                                     const std::string& passphrase,
+                                     const byte salt[], u32bit salt_size,
+                                     u32bit iterations) const
    {
    if(iterations == 0)
       throw Invalid_Argument("PKCS#5 PBKDF2: Invalid iteration count");