Score:0

what will be the impact of a 2-bit error in a ciphertext block for decryption if AES is used in ECB, CBC and CTR mode?

us flag

So I was reading about 1-bit error propagation for AES mode and how it propagates in various modes. I was wondering how error would propagate in ECB, CBC and CTR modes if it was a 2-bit or a 3-bit error on the ciphertext block when the receiver decrypts the ciphertext?

poncho avatar
my flag
Can't a two bit error be treated as a pair of independent one-bit errors? Couldn't you work it out yourself based on that?
Maarten Bodewes avatar
in flag
I think basically either a block is fully affected or a single bit is affected when it comes to single bit errors. I'll leave the realization what then happens with two-bit errors in the blocks affected by single bit errors.
mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.