What I was trying to get across in my post is that there is no easy answer currently. cryptlib may be best if you are ok with the license. Keyczar is a good start, but it needs more time to be fully-baked. GPGME is a bit clunky and C-only. I have no clear recommendation, and that sucks.
Hopefully people will rally around these. Cryptographers to review these libraries and NaCl. Developers to add the HLL bindings. Note that NaCl has a high-level API, so the HLL binding may just be SWIG + wrapper to convert length-counted byte buffers into the appropriate sequence type.
Hopefully people will rally around these. Cryptographers to review these libraries and NaCl. Developers to add the HLL bindings. Note that NaCl has a high-level API, so the HLL binding may just be SWIG + wrapper to convert length-counted byte buffers into the appropriate sequence type.