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I've got an API spec that specifies NRPAD and FPAD as possible padding schemes. I see these being used together with the Korean SEED algorithm. The SEED specification however is void of any padding mode description as is the API.

Can anybody tell where these padding schemes are defined, and how they operate?

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  • $\begingroup$ SEED is just a block cipher, and as such does not specify any padding scheme, as it can be used with anything compatible. I have a feeling NRPAD and FPAD are just generic terms for "padding n bits to the right" and "fixed padding" $\endgroup$ Nov 3, 2014 at 10:44
  • $\begingroup$ @RichieFrame Yeah, I am aware of that, it's just that I cannot find anything. There is SEED for CMS, but that seems to specify PKCS#7 compatible padding. Possibly they are required in some Korean specific scheme... $\endgroup$
    – Maarten Bodewes
    Nov 3, 2014 at 12:15
  • $\begingroup$ Reminder to myself: don't post question about algorithms/protocols that are just too obscure/useless :( $\endgroup$
    – Maarten Bodewes
    Nov 7, 2014 at 16:47

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