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Re: compression before encryption
I believe the point is that "it is believed not to have [a negative]
effect on the underlying security functionality...."
-derek
Jerome Etienne <jerome@psti.com> writes:
>
> apparently the ippcp list is closed, so i try here...
>
> quote from IP Payload Compression Protocol (IPComp) (RFC 2393)
>
> "5. Security Considerations
>
> When IPComp is used in the context of IPSec, it is believed not to
> have an effect on the underlying security functionality provided by
> the IPSec protocol; i.e., the use of compression is not known to
> degrade or alter the nature of the underlying security architecture
> or the encryption technologies used to implement it.
> "
>
> but in fact the compression increases the encryption scheme, because
> it reduces the redondancy of the plain text which is so usefull for
> cryptanalysis.
> did i miss something ?
>
--
Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory
Member, MIT Student Information Processing Board (SIPB)
URL: http://web.mit.edu/warlord/ PP-ASEL-IA N1NWH
warlord@MIT.EDU PGP key available
References: