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Title: Is there a way to encrypt a message with one key and decrypt it with another key Post by: Elwar on April 09, 2013, 04:45:01 AM Is it possible to have two paired keys such that I encrypt a message with one key, then later decrypt that same message with a different key?
I basically am looking to encrypt a message on a server, the server then releases the encrypted message. Then later, the key to decrypt the message will be released. But I am just trying to play it safe as far as storing or transferring the key used to encrypt the message in the first place. I would rather just immediately discard it once the message is created and hold the second key in cold storage until it is time to release it. Any thoughts? Title: Re: Is there a way to encrypt a message with one key and decrypt it with another key Post by: Chet on April 09, 2013, 04:47:08 AM pgp
Title: Re: Is there a way to encrypt a message with one key and decrypt it with another key Post by: Elwar on April 09, 2013, 05:07:58 AM Title: Re: Is there a way to encrypt a message with one key and decrypt it with another key Post by: crypTrade on April 09, 2013, 05:09:54 AM That's basically the whole point of public key crypto.
Title: Re: Is there a way to encrypt a message with one key and decrypt it with another key Post by: Etlase2 on April 09, 2013, 08:05:35 AM Not really the whole point, especially considering it's not the part that bitcoin uses-- non-repudiation (http://en.wikipedia.org/wiki/Non-repudiation)
Title: Re: Is there a way to encrypt a message with one key and decrypt it with another key Post by: crypTrade on April 09, 2013, 08:12:12 AM Not really the whole point, especially considering it's not the part that bitcoin uses-- non-repudiation (http://en.wikipedia.org/wiki/Non-repudiation) yes. The other half is sign with one key, verify with another. |