Free Public Key Encryption Downloads

Secure Instant Messaging/Chats/Forums

iGo Incognito

Incognito Systems

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...

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Data file and e-mail encryption utility


Briggs Softworks

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.

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Lightweight classes to let you encrypt/sign


Canadian Mind Products

The Transporter acts like an electronic secure courier to deliver your data and documents in encryted form safe from prying eyes or those who would tamper with them. For more information see website

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Secure email in an incredibly small package!

Crypto Anywhere

Bytefusion Ltd.

Crypto Anywhere is secure email on the move ! Crypto Anywhere is small enough to fit on a single floppy or USB key chain drive and so easy to use your grandma will be using it.

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Digitally signing files and text with RSA


CommuniCrypt Software

Tool for quickly digitally signing or verifying text or files with Public-Key-Encryption with RSA encryption algorithm (RSAES-OAEP).Key length for signing up to 7120 bit.

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Fast instant message and chat server

DBabble Chat Server

NetWin Ltd

A powerful instant messaging and discussion / chat server. Faster and easier than email, easily customizable and does not require direct internet access. Ideal for ISP''s and small or large businesses wanting the benefits of real time communications.

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Encryption software, service with scheduler.

PrimaSoft Encryption - Service Edition

PrimaSoft PC

Encryption Software Service Edition with Scheduling (Windows): run scheduled encryption, decryption sessions as a service process. Use the latest industry standard strong encryption algorithms (AES known as Rijndael, Twofish, RSA,..).

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Send and receive encrypted e-mail

Outlook Encryption

Omniquad Ltd

Outlook Encryption allows you to seamlessly send and receive encrypted e-mail to and from other Outlook Encryption users. Features: Automatic attachment encryption; Total pass phrase privacy; Password book feature and Uses symmetric encryption.

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Library with encryption and math functions

HIME dll


Library with encryption functions (public key/secret key) and huge integer math functions. RSA public key, AES (Rijndael) secret key encryption. SHA-256 hash function. Random number generation (Blum-Blum-Shub, RSA,..). For every programming language.

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.NET Licensing System

Infralution Licensing System


Infralution Licensing System (ILS) is an affordable, 100% .NET solution for licensing components and applications using simple and secure encrypted license keys.

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