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Is it possible to encrypt a message using PGP so that multiple recipients (each with their own public private keypair) can decrypt it? I'd like to email one message which can be decrypted by each person with their own keys.
ztnewman
Posted 2013-02-19T22:37:49.587
Reputation: 233
2Is there any technical limit on the number of recpients? Like a whole company of 100 people? – Alex – 2016-02-26T20:49:54.373
So the symmetric key is encrypted for each recipient with their public key. Does each receive a different ciphertext or the same ciphertext with a header length proportional to the number of recipients? – doughgle – 2019-11-19T11:53:54.423
There's one copy of ciphertext and multiple copies of the same symmetric key. – user1686 – 2019-11-19T12:02:53.297
20Just to add, what PGP does is generate a key for a symmetric cipher, and cipher that for each recipient with their public key. So the message for many recipients isn't much larger than that for 1. – vonbrand – 2013-02-19T23:03:25.857