Free rsa software for windows

Retroshare 4.09.b offers you a wonderful file sharing tool to share file and search/send MpP3 like in Limewire, Edonkey, or Retroshare as well as easy as to your friends online: Everything is encrypted, so you have a secure communication & chat environment to your friends in this Instant Messenger like Pidgin or MSN. The world novelty of CyberSpace p2p Messenger consists of the fact that a so-called Distributed Hash Table (DHT) of the Kademlia protocol is used, which is already well known from the Emule and Azureus clients.

If a user comes into the Messenger on-line, then a connection is looked up over the p2p-Protokoll, which relates its RSA-Key with that current IP address of the other user. Each user is recognized unique by his public RSA-key, the private key remains stored on the hard disk.

Enhancements :

• Better firewall handling.

This program is a modified encryption scheme based on industry standard AES for symmetric encryption. Rsyncrypto is a modified encryption scheme. It is based on industry standard AES for symmetric encryption, as well as RSA for having different keys for each file while allowing a single key to decrypt all files. It even uses an encryption mode that is based on CBC.
Rsyncrypto does, however, do one thing differently. It will modify the encryption schema from plain CBC to a slightly changed version.
This modification ensures that two almost identical files, such as the same file before an after a change, when encrypted using rsyncrypto and the same key, will produce almost identical encrypted files.
This means that both objectives can be achieved simultaneously.

cGeep is a software application made available to all for easy encryption of emails and files alike Protecting your privacy and your confidential documents is now easy and FREE with the help of cGeep (formerly pGeep).
Encrypt your files in 1 click
Integrated to Windows 2000/XP, cGeep allows you to encrypt your documents and folders in 1 click.
Encrypt your emails in 1 click
To send an encrypted email, 1 click is enough too! And it works with your usual email client (Outlook Express, Thunderbird, Mozilla, Netscape, Eudora...and even Lotus Notes)!
On top of that, cGeep ships with cGeep Companion for Outlook Office, a plug-in which offers total integration in the workflow of Outlook Office users.
In all cases, you keep using your regular email address to send and receive secure encrypted messages. cGeep integrates perfectly in your environment, without changing a thing to your work habits.
Security and compatibility with OpenPgp
cGeep uses OpenPGP which has been an Internet standard for years. This guarantees not only a strong level of security but also a complete compatibility with other software like PGP.
Automatic key directory
The free centralised web directory of cGeep users allows for automatic public key retrieval whenever you add a new correspondent - no more lousy search and secret exchange!
Easy to install and use!
To use cGeep doesnt require any special computer skills or PhD education in cryptography. The software installation is seamless and automated (Windows 2000/XP) and generates your key pair in a snap.
Main features:
- Professional, automated installation.
- Software and documentation in French and English
- Support for the OpenPGP standard for encryption and digital signatures.
- RSA encryption with asymmetrical keys of 1024 bits & symmetrical keys of 128 bits in AES format.
- PGP encryption of the files on the hard disk, with no limitation of size and/or format.
- Plug-in pour Outlook Office 2000/XP/2003/2007.
- Sending of encrypted/signed emails with no restriction as to the number of recipients.
- Encryption of attachments in any format.
- Encryption of attachments with no restriction as to number or size.
- Encryption without password entry.
- Encryption of emails without sharing a password and/or secret with the contact.
- RSA digital signature of emails and attachments.
- RSA encryption key different from the RSA signature key.
- Unlimited free access to the cGeep Central Directory.
- Automatic import of contacts from the cGeep Central Directory.
- Use of cGeep without http connection to the Central Directory.
- Export of cGeep keys in OpenPGP format.
- Keyring storage location selection. (Example: USB)
- Private key Backup tool
System requirements:
- Java 1.5 or 1.6 must be installed prior to cGeep
Note: If you want to have access to more features, you can get the Pro version by clicking the Buy now link.

Win Crypto Chat 4.4 is developed as a useful and handy software with which you can easily chat over TCPIP using an utterly paranoid level of encryption. Uses ridiculously long AES and RSA keys, all automatically generated. Nice simple interface and source included. Java and Windows versions available. You can also send files over the encrypted connection.

Enhancements: Includes unspecified updates.

SimpleAuthority lets you create keys and certificates that provide cryptographic digital identities.
Main features:
- General Purpose certificates (for secure email, VPN and/or client SSL use)
- SSL server certificates
- RSA 1024/2048/4096 key lengths, SHA-1/256/384/512 digest algorithms
- PKCS#12/DER and PEM-encoding formats
- Supports random password generation for new Identity files
- Can be used to generate self-signed certificates, or multi-CA hierarchies
- Software version checks
- Help pages