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Author Topic: Is there a way to encrypt a message with one key and decrypt it with another key  (Read 603 times)
Elwar
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April 09, 2013, 04:45:01 AM
 #1

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?

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April 09, 2013, 04:47:08 AM
 #2

pgp
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April 09, 2013, 05:07:58 AM
 #3

pgp

Got it, thanks.

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crypTrade
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April 09, 2013, 05:09:54 AM
 #4

That's basically the whole point of public key crypto.
Etlase2
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April 09, 2013, 08:05:35 AM
 #5

Not really the whole point, especially considering it's not the part that bitcoin uses-- non-repudiation

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April 09, 2013, 08:12:12 AM
 #6

Not really the whole point, especially considering it's not the part that bitcoin uses-- non-repudiation
yes. The other half is sign with one key, verify with another.
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