functions as calls to the MS Crypto API. Not integrated into the
Makefile yet, but should eventually allow building of an SSH-enabled
PuTTY which contains no native crypto code, so it can be used
everywhere (and anyone who can get the MS encryption pack can still
use the SSH parts).
[originally from svn r425]
variant which is patent-safe in the US and legal in France and
Russia. This is a horrible hack in some ways: it's shown up serious
deficiencies in the module boundaries. Needs further work, probably
once the SSH implementations are recombined.
[originally from svn r410]
