Atalla card, you should be able to compile with the "hw-atalla" switch
with "./config" or "perl Configure", and then you can use the command-
line switch "-engine atalla" inside speed, s_cient and s_server (after
checking out note (1)).
Notes:
(1) I've turned on native name translation when loading the shared-
library, but this means that the Unix shared library needs to be
libatasi.so rather than atasi.so. I got around this in my testing
by creating a symbollic link from /usr/lib/libatasi.so to the real
library, but something better will be needed. It also assumes in
win32 that the DLL will be called atasi.dll - but as I don't have
a win32/atalla environment to try I have no idea yet if this is
the case.
(2) Currently DSA verifies are not accelerated because I haven't yet
got a mod_exp-based variant of BN_mod_exp2_mont() that yields
correct results.
(3) Currently the "init()" doesn't fail if the shared library can
load successfully but the card is not operational. In this case,
the ENGINE_init() call will succeed, but all RSA, DSA, DH, and
the two BN_*** operations will fail until the ENGINE is switched
back to something that does work. I expect to correct this next.
(4) Although the API for the Atalla card just has the one crypto
function suggesting an RSA private key operation - this is in
fact just a straight mod_exp function that ignores all the RSA
key parameters except the (private) exponent and modulus. This is
why the only accelerator work is taking place inside the mod_exp
function and there's no optimisation of RSA private key operations
based on CRT etc.
patches that Geoff had in a patch file in his play directory.
NOTE for openssl-cvs: THIS IS A CVS BRANCH (BRANCH_engine). IT IS
NOT FOR THE FAINTHEARTED TO PLAY WITH. The code works as it is, but
it's not at all sure it ends up in the OpenSSL distributio in this
form, so do not get dependent on it!
Those rsyncing the repository are considered warned!
