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Sep
22
comment Random vs. Fixed Paddings
Yes, all of that is true, but it doesn't really answer the question. There may have been non-security-related reasons for the prevalence of PKCS#7. Or is PKCS#7 indeed somehow better than its alternatives?
Sep
22
comment Random vs. Fixed Paddings
@CodesInChaos I'm asking about symmetric block ciphers only.
Jun
20
comment Why must IV/key-pairs not be reused in CTR mode?
For anyone else landing here later on, this link (from this question ) probably explains it best. Thanks for the hint about the "two-time pad" PaĆ­lo Ebermann and poncho!
Feb
26
comment Why was ISO10126 Padding Withdrawn?
Thank you for your reply. What do you mean by 'The rationale .. is dubious at best'? Does it have any drawbacks compared to PKCS5?