Simp: Instant Messengers, Instant Security

Instant messaging services

	Simp 1.1	SimpLite 2.0	SimpPro 2.0
Windows Messenger 4.x
MSN Messenger 5.x
MSN Messenger 6.x
AIM
ICQ
Yahoo!
Simultaneous use of the previous IM services

Key features

	Simp 1.1	SimpLite 2.0	SimpPro 2.0
Configuration wizard
Multiple private keys		(up to 2)
Multiple public keys per contact
Custom names for your MSN contacts
Automatic check for updates
Encrypted file transfers for MSN
Encrypted avatars, emoticons and games for MSN 6.x
Easier administration using RIS/GPO
Information on keys usage
Trust level on keys

Licence and technical support

	Simp 1.1	SimpLite 2.0	SimpPro 2.0
Personal use
Business use
Online help
Limited technical support by e-mail
Prioritary technical support by e-mail

Symmetric ciphers for encrypting messages

	Simp 1.1	SimpLite 2.0	SimpPro 2.0
Twofish 128
AES 128
3-DES 128
CAST 128

Asymmetric ciphers for signing and exchanging keys

	Simp 1.1	SimpLite 2.0	SimpPro 2.0
RSA 2048
RSA 4096
ElGamal/DSA 2048/1024
Elliptic Curve over GF(p) 571

Keys agreements

	Simp 1.1	SimpLite 2.0	SimpPro 2.0
Diffie-Hellman