Timeline for CBC Mode error during encryption
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 31, 2018 at 12:20 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Jan 1, 2018 at 11:43 | answer | added | fgrieu♦ | timeline score: 1 | |
| Jan 1, 2018 at 0:45 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Dec 2, 2017 at 0:03 | answer | added | Maarten Bodewes♦ | timeline score: 2 | |
| Dec 1, 2017 at 13:53 | comment | added | Alonso | i have read the wiki description, but i still don't understand, if i use a corrupted Ci* during the encryption i will get a Ci+1 instead of a Ci+1, but when i decrypt them shouldnt i get the same Pi+1? Or perhaps because of the miss calculation of Ci all the later blocks will be garbled during the decryption, because the IV lost it's meaning in the process? F.Y.I i appreciate the patience | |
| Dec 1, 2017 at 13:29 | comment | added | Ilmari Karonen | It sounds like you've probably misunderstood something very fundamental about how CBC mode works. Are you studying crypto from a textbook, or just from random online sources? Have you read the Wikipedia description? Or this thread here on crypto.SE? | |
| Dec 1, 2017 at 11:21 | comment | added | Alonso | In my opinion only C3 will decrypt uncorrectly because during the encryption all the later to C3 blocks will be encrypted using C3 so it dosent really matter if something happend to C3. During the decryption all the other blocks will give me the correct plain text | |
| Dec 1, 2017 at 10:24 | comment | added | Ilmari Karonen | OK, so which blocks do you think that's not the case for? | |
| Dec 1, 2017 at 9:53 | comment | added | Alonso | By feedback i mean that in order to encrypt Pi i have to use Ci-1. | |
| Dec 1, 2017 at 9:42 | review | Close votes | |||
| Dec 1, 2017 at 22:54 | |||||
| Dec 1, 2017 at 9:30 | comment | added | Ilmari Karonen | What exactly do you mean by "the feedback stage"? AFAIK, there is no "feedback stage" in CBC mode that some blocks would not be involved in. Well, except for the trivial fact that the last block obviously has no following block to chain it with. | |
| Dec 1, 2017 at 8:54 | review | First posts | |||
| Dec 3, 2017 at 16:39 | |||||
| Dec 1, 2017 at 8:51 | history | asked | Alonso | CC BY-SA 3.0 |