Re: What is this kind of crypto called?

I've always heard it referred to as shared keys. The corporate
versions of PGP have that capability.

Anthony

On 4/4/06, Craig Brooksby <rcbrxb@gmail.com> wrote:
> I once read of a python library for creating a certain type of
> cryptography. I've forgotten the keyword for this kind of crypto and
> so I can't find it!
>
> What I'm talking about: You encrypt a file, and generate three keys,
> and give a key to each of three people. No single key can open the
> file. It requires *any two* of the three keys to open it.
>
> What's the term for this? Not "federated?" Is "escrow" in there
> somewhere? Can one of you crypto-spook types help me name what I'm
> looking for?
>
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