pgpfan:ocfb
Differences
This shows you the differences between two versions of the page.
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| pgpfan:ocfb [2022/05/20 23:41] – created b.walzer | pgpfan:ocfb [2022/11/29 18:42] – Ref to something gone. b.walzer | ||
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| Line 11: | Line 11: | ||
| The problem here is that the unique value is required to decrypt the message. So it has to be passed along with the message and can't be encrypted. So an attacker knows what it is and can change it to whatever they want. This allows them to, say, quietly chop off the start of the message without penalty. | The problem here is that the unique value is required to decrypt the message. So it has to be passed along with the message and can't be encrypted. So an attacker knows what it is and can change it to whatever they want. This allows them to, say, quietly chop off the start of the message without penalty. | ||
| - | This is (again roughly) how OpenPGP starts up cipher feedback: | + | This is (roughly) how OpenPGP starts up cipher feedback: |
| {{ocfb.svg}} | {{ocfb.svg}} | ||
pgpfan/ocfb.txt · Last modified: 2022/12/27 22:56 by b.walzer