Allow OCSP server to handle multiple requests.

Document new OCSP options.

Initial OCSP server support, using index.txt format.

This can process internal requests or behave like a
mini responder.

Todo: documentation, update usage info.

Submitted by Jeffrey Altman <jaltman@columbia.edu>

decompression.  It can be set up to link at link time or to load the
zlib library at run-time.

certificate so need to match its subject with the certificate IDs in the
response.

Note that since some private kssl functions were exported, the
simplest way to rebuild the number table was to toss everything that
was new since OpenSSL 0.9.6b.  This is safe, since those functions
have not yet been exported in an OpenSSL release.  Beware, people who
trust intermediary snapshots!

them to one that won't get exported.

His comments are:

 . adds use of replay cache to protect against replay attacks

 . adds functions kssl_tgt_is_available() and
   kssl_keytab_is_available() which are used within s3_lib.c
   and ssl_lib.c to determine at runtime whether or not
   KRB5 ciphers can be supported during the current session.

things), especially as the RSA keys are fixed. However, DSA only fixes the
DSA parameters and then generates the public and private components on the
fly each time - this commit hard-codes some sampled key values so that this
is no longer the case.

Jeffrey Altman <jaltman@columbia.edu>

(Really, the time that's being parsed is a GeneralizedTime, so if
ASN1_GENERALIZEDTIME_get() ever gets implemented, it should be used
instead)

His comments are:

 . Fixed all of the Windows dynamic loading functions, prototypes, etc.

 . Corrected all of the unsigned/signed comparison warnings

 . Replaced the references to krb5_cksumarray[] for two reasons.
   First, it was an internal variable that should not have been
   referenced outside the library; nor could it have been with
   a shared library with restricted exports.  Second, the
   variable is no longer used in current Kerberos implementations.
   I replaced the code with equivalent functionality using functions
   that are exported from the library.

exported header files.

the term "simultaneous multiplication" (which -- acording to the
paper, at least -- applies only to certain methods which we don't use
here)

things will work much more smoothly.

SSL according to RFC 2712.  His comment is:

This is a patch to openssl-SNAP-20010702 to support Kerberized SSL
authentication.  I'm expecting to have the full kssl-0.5 kit up on
sourceforge by the end of the week.  The full kit includes patches
for mod-ssl, apache, and a few text clients.  The sourceforge URL
is http://sourceforge.net/projects/kssl/ .

Thanks to a note from Simon Wilkinson I've replaced my KRB5 AP_REQ
message with a real KerberosWrapper struct.  I think this is fully
RFC 2712 compliant now, including support for the optional
authenticator field.  I also added openssl-style ASN.1 macros for
a few Kerberos structs; see crypto/krb5/ if you're interested.

for encrypt?).

Worth around 5% for encrypt. Slows down decrypt slightly, but I expect to
regain that later.