RE: question re practical use of secret sharing

2007-06-27 Thread Geoffrey Hird
] [mailto:[EMAIL PROTECTED] On Behalf Of Peter Gutmann Sent: Thursday, June 21, 2007 6:57 AM To: [EMAIL PROTECTED]; cryptography@metzdowd.com Subject: Re: question re practical use of secret sharing Charles Jackson [EMAIL PROTECTED] writes: Is anyone aware of a commercial product that implements

Re: question re practical use of secret sharing

2007-06-23 Thread Allen
Actually I worked on a project recently that had this scenario. Paramedic team picks up heart attack/stroke/serious accident patient. The paramedic tending the patient is using a laptop to record EKG or other electronic medical process. Even with the siren on they get in a serious accident

Re: question re practical use of secret sharing

2007-06-23 Thread James A. Donald
James A. Donald: Is anyone aware of a commercial product that implements secret sharing? If so, can I get a pointer to some product literature? Peter Gutmann It's available as part of other products (e.g. nCipher do it for keying their HSMs), but I don't know of any product that just

Re: question re practical use of secret sharing

2007-06-22 Thread D. K. Smetters
Peter Gutmann wrote: Charles Jackson [EMAIL PROTECTED] writes: Is anyone aware of a commercial product that implements secret sharing? If so, can I get a pointer to some product literature? I believe at least some versions of PGP might have supported secret sharing for key backup.

Re: question re practical use of secret sharing

2007-06-22 Thread Peter Gutmann
D. K. Smetters [EMAIL PROTECTED] writes: However, given the difficulty people have in managing keys in general, building effective systems that allow them to manage key fragments is beyond the range of most current commercial products. I think that's the perfect summary of the problem with

Re: question re practical use of secret sharing

2007-06-22 Thread Ed Gerck
Alexander Klimov wrote: So if one xors a Linux iso image and some movie, it is quite hard to claim that the result is copyright-protected. Why? A copyright-protected work is still copyright-protected, encrypted or not. It is just as with any reversible encoding of a copyright- protected work,

Re: question re practical use of secret sharing

2007-06-22 Thread Jon Callas
On Jun 13, 2007, at 4:47 AM, Charles Jackson wrote: A quick question. Is anyone aware of a commercial product that implements secret sharing? If so, can I get a pointer to some product literature? PGP. http://www.pgp.com/ I can tell you more gory details than you're probably interested

Re: question re practical use of secret sharing

2007-06-22 Thread alex
[EMAIL PROTECTED] D. K. Smetters [EMAIL PROTECTED] writes: However, given the difficulty people have in managing keys in general, building effective systems that allow them to manage key fragments is beyond the range of most current commercial products. I think that's the perfect

Re: question re practical use of secret sharing

2007-06-22 Thread Thierry Moreau
Very interesting discussion. I bring a different angle to the very topic of discussion (practical use). See below, after the quotes which I fully agree. Peter Gutmann wrote: D. K. Smetters [EMAIL PROTECTED] writes: However, given the difficulty people have in managing keys in general,

question re practical use of secret sharing

2007-06-21 Thread Charles Jackson
A quick question. Is anyone aware of a commercial product that implements secret sharing? If so, can I get a pointer to some product literature? Chuck Jackson - The Cryptography Mailing List Unsubscribe by sending

Re: question re practical use of secret sharing

2007-06-21 Thread Ali, Saqib
There is a opensource implementation available: http://point-at-infinity.org// On 6/13/07, Charles Jackson [EMAIL PROTECTED] wrote: A quick question. Is anyone aware of a commercial product that implements secret sharing? If so, can I get a pointer to some product literature? -- Saqib

Re: question re practical use of secret sharing

2007-06-21 Thread Alexander Klimov
On Fri, 22 Jun 2007, Peter Gutmann wrote: It's available as part of other products (e.g. nCipher do it for keying their HSMs), but I don't know of any product that just does... secret sharing. What would be the user interface for such an application? What would be the target audience? (I

Re: question re practical use of secret sharing

2007-06-21 Thread Trei, Peter
RSA's BSAFE 6.2.1.0 supports Bloom-Shamir secret sharing. Peter Trei Principal Engineer RSA: the Security Division of EMC. Disclaimer: I am not a spokesperson for RSA or EMC. -Original Message- Charles Jackson asks: A quick question. Is anyone aware of a commercial product that