Question

Transmission errors are propagated in the following modes, except __________.

Answer 1

Answer:

ectronic code book are propagated

Answer 2

In OFB Transmission errors do not propagate:

Explanation:

• In OFB Transmission "errors do not propagate"; rather the "current ciphertext" is affected, because keys are usually generated “locally”
• Output Feedback (OFB) in cryptography is a block chipher method of operation. This has similarities to the feedback mode of Ciphertext, allowing for encryption of varying block sizes, however has the main difference is, that the encryption block  function output is feedback (rather than the "ciphertext") .

To know more

Block cipher design principles and modes of operation - Brainly.in

https://brainly.in/question/2991514