Timeline for How much can you compress information?
Current License: CC BY-SA 4.0
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| Mar 3 at 7:33 | comment | added | Peter Cordes | That's why you should always compress before encrypting, rather than the other way around. - if you're going to compress at all, of course. Reasons not to include the fact that the length of a message is often not secret, and in some cases the compressed length can reveal information about the message. Some attacks on SSL / HTTPS have been possible because of compression; see Is there an existing cryptography algorithm / method that both encrypts AND compresses text? for links to details on CRIME and BREACH attacks. | |
| Mar 2 at 23:48 | comment | added | JBH | +1 because this answer is the best explanation I've ever read concerning the basic problem with data compression. | |
| Mar 2 at 22:00 | history | answered | Logan R. Kearsley | CC BY-SA 4.0 |