Timeline for Cipher Feedback Mode - sizes of the blocks and shift registers
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
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| Jul 11, 2018 at 17:15 | comment | added | poncho | @stofuser91: for CFB-128, a single ciphertext block is 128 bits; we use two ciphertext blocks to encrypt a 256 bit plaintext | |
| Jul 11, 2018 at 16:32 | comment | added | stofuser91 | Thanks for the answer. I was not precise enough with my question... Can you also tell me, what size each single ciphertext block has after XOR with the plaintext? Espscially the first one when the IV is 128bits and the key 128bits and the plaintext 256bits ? I guess it also has the size of the plaintext? | |
| Jul 11, 2018 at 15:27 | history | answered | poncho | CC BY-SA 4.0 |