[Cryptography] End-to-End, One-to-Many, Encryption Question

[Tony Arcieri]

On Wed, Jun 11, 2014 at 5:49 PM, Kent Borg <kentborg at borg.org> wrote:

> Is there a way to encrypt once with key A, super-encrypt with key B1 (not
> knowing any other keys), and finally decrypt with key C1 (not knowing any
> other keys)?  Or, super-encrypt with key B2, then decrypt with key C2?


Sounds like you want proxy re-encryption:

https://en.wikipedia.org/wiki/Proxy_re-encryption

-- 
Tony Arcieri
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