3DES
Encryption software and encryption software toolkits to encrypt files or data easily. triple des cryptography for strong encryption/decryption (3des strength)
http://www.des-rsa-encryption-software-cryptography-group.com/
FreeS/WAN
FreeS/WAN
http://www.freeswan.org/
GnuPG
Gnupg.org - gnu privacy guard home page
http://gnupg.org/
Network Associates PGP
Network Associates PGP
http://www.pgp.com/
RSA Encryption
RSA Encryption
http://www.encryption.com/