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Jun
23
awarded  Constituent
Jun
22
awarded  Caucus
Sep
24
awarded  Autobiographer
Aug
22
awarded  Yearling
Jul
3
awarded  Popular Question
Nov
10
awarded  Fanatic
Sep
27
awarded  Custodian
Sep
27
reviewed Excellent Will our app be FIPS 140-2 compliant if we use our own AES algorithm implementation?
Sep
1
awarded  Enthusiast
Aug
28
awarded  Critic
Aug
27
awarded  Custodian
Aug
27
reviewed Edit Why no swapping block in the last round of DES?
Aug
27
revised Why no swapping block in the last round of DES?
Added the link to the document, did some typo corrections and some reformatting.
Aug
27
answered Why no swapping block in the last round of DES?
Aug
25
awarded  Citizen Patrol
Aug
18
awarded  Suffrage
Aug
17
accepted AES key expansion: 256bit key
Aug
14
comment Why does DES use exactly 16 rounds?
yes, but with 16 rounds you have to use brute force, since other type of attacks aren't faster than brute force at 16 rounds, while they are faster with less rounds. Regarding the "possibility to break 16 rounds", see wikipedia - DES Challenges; in 1992 it took 22 hours and 15 minutes to break DES.
Aug
13
answered Why does DES use exactly 16 rounds?
Aug
9
revised why DES encryption uses different modes like ECB,OFB?
added 27 characters in body