Crypto Libraries

I've been posting about OpenSSL earlier since I'm currently using it both for CMS stuff and TLS. And it works reasonable well.

I've started to look into other open/free alternatives as well though. Here is a list of the ones I've found so far:

1. OpenSSL, homepage
2. GnuTLS, homepage
3. Network Security Services (Mozilla), homepage
4. S/Mime Freeware Library (SFL), (DigitalNet, BAE Systems, for US gov), using Crypto++

I've also found a commercial product that Peter Gutmann is involved in:
CryptLib