diff options
| author | lloyd <[email protected]> | 2010-03-04 22:09:07 +0000 |
|---|---|---|
| committer | lloyd <[email protected]> | 2010-03-04 22:09:07 +0000 |
| commit | 664e00a6d51cf7d6f3fefbbb3500a113d21288ab (patch) | |
| tree | 32db25ebf468a2c75ec4578d83f8c41e0197bfaf /doc/log.txt | |
| parent | f5cfe2857acb30ece3f01fbc98a83e8b82e4907a (diff) | |
This checkin represents a pretty major change in how PK operations are
performed. Up until now, each key object (eg DSA_PublicKey or
ECDH_PrivateKey) had two jobs: contain the key material, and know how
to perform any operations on that key. However because of a desire to
support alternative implementations (GNU MP, hardware, whatever),
there was a notion of operations, with the key objects containing an
op that they got via engine rather than actually implementing the
underlying algorithms directly.
Now, represent the operation as an abstract interface (typically
mapping a byte string to a byte string), and pass a plain Public_Key&
or Private_Key& to the engine. The engine does any checks it wants (eg
based on name, typeid, key sizes, etc), and either returns nothing
(I'll pass) or a pointer to a new operation that represents signatures
or encryption or what-have-you using that key.
This means that plain key objects no longer contain operations. This
is a major break with the traditional interface. On the other hand,
using these 'bare' operations without padding, KDFs, etc is 99% of the
time a bad idea anyway (and if you really need them, there are options
so you get the bare op but via the pubkey.h interfaces).
Currently this change is only implemented for DH and ECDH (ie, key
agreement algorithms). Additionally the optional engines (gnump and
openssl) have not been updated. I'll probably wait to touch those
until after I can change them all in one go for all algos.
Diffstat (limited to 'doc/log.txt')
| -rw-r--r-- | doc/log.txt | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/doc/log.txt b/doc/log.txt index e515980da..b2ce2d6a2 100644 --- a/doc/log.txt +++ b/doc/log.txt @@ -11,6 +11,7 @@ - Add a block cipher cascade construction - Add support for password hashing for authentication (passhash9.h) - Add support for Win32 high resolution system timers + - Major refactoring and API changes in the public key code - Changed S2K interface: derive_key now takes salt, iteration count - Remove dependency on TR1 for ECC and CVC code - Renamed ECKAEG to its more usual name, ECDH |