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Thread: Using an "N out of M keys" system




Using an "N out of M keys" system
user name
2006-09-15 10:42:22

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I've heard it mentioned before that some versions of PGP (probably the
8.x and 9.x families) have a system where a message can be decrypted by
any n out of m keys used in conjunction. Is this true, and how is it
implemented? One rather cumbersome method that I can think of is
(working backwards):

- - Any of the M keys can decrypt the first of N layers
- - Any other key can decrypt the next layer
- - ...
- - Any key not used yet can decrypt the next layer
- - ...

Is this anywhere even close, or does it (or would it) use a completely
different system?

- --
Alphax
Death to all fanatics!
Down with categorical imperative!
OpenPGP key: http://tinyurl.com/lvq4g
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