1)   Tunnelier 4.14
Free SSH client for Windows with graphical SFTP; VT100, xterm; dynamic and manual TCP/IP tunneling; auto-reconnect; scriptable console-mode SFTP; single-click Remote Desktop forwarding; FTP-to-SFTP bridge; Kerberos; public keys. Free individual use.
free, ssh, sftp, ssh2, dynamic, tunneling, port forwarding, proxy, SOCKS, xterm,

 2)   iGo Incognito 1.2
iGo Incognito - Secure communications using a public key infrastructure and the Advanced Encryption Standard (AES). Supports rich voice/text messages, offline and online messages, private chats, open forums, file transfer and more...
Security, Instant, Message, Chat, Forum, Discussion, Encryption, Privacy, Public Key, AES,

 3)   SignetSure 1.0
SignetSure is Win32 security tool for protecting files from hacker alteration. Create digital signatures for your files from Win32 app. Then authenticate your files with single API call. Uses RSA public key cryptography. C/C++ or Visual Basic.
SignetSure, signature, digital signature, PKI, RSA, public key, digital certificate, security, cryptography, encryption,

 4)   CHAOS Chameleon 3.8
CHAOS Chameleon has comprehensive privacy tools including file/folder compression, file/folder shredder.
security, public key, stream cipher, chaos, protect, shredder, e-mail, safety, GOST, Blowfish,

 5)   Puffer 4.02
Data file and e-mail encryption utility for Win 95 to XP. Uses 2048-bit Diffie-Hellman public key encryption with 256-bit AES algorithm for symmetric encryption.
puffer, archive, compression, encryption, security, email, wipe, public key, AES, stego,

 6)   Hiding CHAOS 5.6
Stego product for Windows with a CHAOS interface and a very large hiding capacity (~100% of carrier file).
security, public key, PGP, self extractor, chaos, protect, shredder, e-mail, safety, GOST,

 7)   Home CHAOS 3.5
Encrypt text files, programs and entire folders giving additional security to your information.
security, public key, stream cipher, chaos, protect, shredder, e-mail, safety, GOST, Blowfish,

 8)   Safe Express Home 5.5
Safe Express is a public key email encryption client that automatically encrypts all your messages. Safe Express is an anti-spam email client that automatically classifies incoming emails as spam or non-spam.
security, public key, email, e-mail, mail, protect, spam, encrypt, client, safe,

 9)   CHAOS Public Key 4.23
It is compact, reliable and simple program for sending protected messages to friends, colleagues and bankers.
security, public key, PGP, self extractor, chaos, protect, shredder, e-mail, safety, GOST,

 10)   Public Key File and Email Encryption freeware 4.0.1.12
DeltaCrypt OneClick Personal: Public Key File, Email Encryption featuring 1024-bit RSA protection, digital signatures, unalterable public keys to keep files of any format and email communications secured. Ideal laptop protection. Personal use only.
encryption software, application services, PKI, public key,

 11)   CHAOS' Doors 3.7
Comprehensive privacy tools including file/folder encryption, e-mail encryption, file/folder shredder.
security, public key, stream cipher, chaos, protect, shredder, e-mail, safety, GOST, Blowfish,

 12)   AutoKrypt 6.22
Encryption software designed for automation. Automatically encrypt and decrypt files and folders. Encryption methods include password based, secret key, public and private key, OpenPGP password, OpenPGP public and private key.
encrypt, decrypt, pgp, openpgp, automate, schedule, password, private key, public key, openpgp private key,

 13)   Safe Express Free 3.4
Safe Express is a public key email encryption client that automatically encrypts all your messages. Safe Express is an anti-spam email client that automatically classifies incoming emails as spam or non-spam.
security, public key, email, e-mail, mail, protect, spam, encrypt, client, safe,

 14)   Email CHAOS 4.52
It is compact, reliable and simple program for sending protected messages to friends, colleagues and bankers.
security, public key, PGP, self extractor, chaos, protect, shredder, e-mail, safety, GOST,

 15)   SPAM Shredder 3.1
SPAM Shredder is an anti-spam email client that automatically classifies incoming emails as spam or non-spam.
security, public key, spam, email, e-mail, mail, protect, spam, encrypt, client,