Re: Convert arc4 from a cipher into a block cipher

2010-04-05 Thread Pavel Roskin 
On Sat, 2010-04-03 at 09:49 +0200, Sebastian Andrzej Siewior wrote:
 This patch series converts arc4 into a block cipher and converts all its
 users (except those in staging) to use it. The first two patches ensure
 that two implementations can coexist, the following patches convert each
 user so we remain bisectable.
 - lib80211_crypt_tkip was tested with ipw2200
 - mac80211 was tested with zd1211rw

Are you trying to speed up arc4?  Or you want to simplify the code?  Or
maybe you are trying to make arc4 unsuitable for anything other than WEP
and TKIP?  The later should be fine, actually, considering the known
security issues.

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Regards,
Pavel Roskin
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Re: Convert arc4 from a cipher into a block cipher

2010-04-05 Thread Herbert Xu 
On Mon, Apr 05, 2010 at 04:33:45PM -0400, Pavel Roskin wrote:

 Are you trying to speed up arc4?  Or you want to simplify the code?  Or
 maybe you are trying to make arc4 unsuitable for anything other than WEP
 and TKIP?  The later should be fine, actually, considering the known
 security issues.

No the point is to make arc4 compliant with the crypto API by
being reentrant.

Functionality-wise there is no difference.

Cheers,
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Convert arc4 from a cipher into a block cipher

2010-04-03 Thread Sebastian Andrzej Siewior 
This patch series converts arc4 into a block cipher and converts all its
users (except those in staging) to use it. The first two patches ensure
that two implementations can coexist, the following patches convert each
user so we remain bisectable.
- lib80211_crypt_tkip was tested with ipw2200
- mac80211 was tested with zd1211rw

Sebastian

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