atrox

April 27th, 2006, 01:31 AM

Hi.

On the page *Recent amanda-user discussion on encryption* it is pointed out that expensive computation of asymmetric encryption isn't issue as many systems use a symmetric encryption key that is encrypted with a public key.

Well, this is about network traffic, right? As I understand, if one wishes to keep his data encrypted with a public key on backup-media (which I see as a true peace of mind, cause symmetric keys may be hijcked by trojas etc), he still has to use the computationally expensive asymmetric algorithm or maintain an encrypted symmetric key for every backup-session.

Have I misunderstood anything?

PS. Has anyone implemented the asymmetric data-encryption already? In the encryption-page it was said that it has to be tested yet.

Silver

On the page *Recent amanda-user discussion on encryption* it is pointed out that expensive computation of asymmetric encryption isn't issue as many systems use a symmetric encryption key that is encrypted with a public key.

Well, this is about network traffic, right? As I understand, if one wishes to keep his data encrypted with a public key on backup-media (which I see as a true peace of mind, cause symmetric keys may be hijcked by trojas etc), he still has to use the computationally expensive asymmetric algorithm or maintain an encrypted symmetric key for every backup-session.

Have I misunderstood anything?

PS. Has anyone implemented the asymmetric data-encryption already? In the encryption-page it was said that it has to be tested yet.

Silver