Re: how to tell if decryption was successfull?

2005-02-02 Thread Steven M. Bellovin
In message [EMAIL PROTECTED], Andreas writes: [newbie here] I was wondering how can one tell if some data was successfully decrypted. Isn't there an assumption going on about what the cleartext data should be? Text? Image? ZIP file? Ziped jpeg? Another cyphertext? rot-13? There are a lot of

Re: how to tell if decryption was successfull?

2005-02-02 Thread Matt Crawford
On Feb 1, 2005, at 13:29, Andreas wrote: I was wondering how can one tell if some data was successfully decrypted. Isn't there an assumption going on about what the cleartext data should be? Text? Image? ZIP file? Ziped jpeg? Another cyphertext? rot-13? Embedded checksums or hash codes added