Voltage IBE

[Morten Gulbrandsen]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Harry Rickards wrote:
> Hi everyone,
> 
> I appreciate that this may not be the right list, but does anyone know
> of a way to decrypt Voltage IBE encrypted messages without having to
> use the web interface at the third party server? The ciphertext seems
> to be contained in the actual message, as in the following example:


This is identity based encryption,

I've heard about it.

http://www.voltage.com/technology/ibe.htm



Identity-Based Encryption (IBE) takes a completely new approach to the
problem of encryption. IBE can use any arbitrary string as a public key,
enabling data to be protected without the need for certificates.
Protection is provided by a key server that controls the mapping of
identities to decryption keys.

It looks similar to vanish, which is time stamped and duration
dependent. Also no encryption, only to a time frame.

I only know and understand S/MIME and OpenPGP.

IBE Identity based encryption is supposed to be easier than OpenPGP. If
I remember correctly.


   Identity-based encryption (IBE) is a public-key encryption technology
   that allows a public key to be calculated from an identity, and the
   corresponding private key to be calculated from the public key.

http://www.rfc-editor.org/rfc/rfc5091.txt

Looks insecure to me.


Sincerely yours,

藻留天   具留部覧度船
Morten Gulbrandsen
_____________________________________________________________________
Java programmer, C++ programmer
CAcert Assurer, GSWoT introducer,
Gossamer Spider Web of Trust http://www.gswot.org
Please consider the environment before printing this e-mail!

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (SunOS)
Comment: For keyID and its URL see the OpenPGP message header

iEYEAREIAAYFAkuBxfQACgkQ9ymv2YGAKVQ56wCgv6TJu0S1dh3Ss/9dVCmeiYnX
7ikAnRpZgDTtkyjszHR9k01uDbF5VXLz
=mxWG
-----END PGP SIGNATURE-----