Zfone and ZRTP :: encryption for voip protocols

Ed Gerck edgerck at nma.com
Wed Mar 15 17:52:15 EST 2006


cybergio wrote:
> 
> Zfone :: http://www.philzimmermann.com/EN/zfone/index.html

"...it achieves security without reliance on a PKI, key certification,
trust models, certificate authorities, or key management..."

Good. But, uf course, there's a trust model and you need to rely on it.

"...allows the detection of man-in-the-middle (MiTM) attacks by
displaying a short authentication string for the users to read and
compare over the phone."

Depends on the trust model. May not work.

Cheers,
Ed Gerck

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