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This draft is a work item of the S/MIME Mail Security Working Group of the IETF.

        Title           : Compressed Data Content Type for S/MIME
        Author(s)       : P. Gutmann
        Filename        : draft-ietf-smime-compression-02.txt
        Pages           : 4
        Date            : 26-Oct-00
        
The Cryptographic Message Syntax data format doesn't currently
contain any provisions for compressing data before processing it.
Compressing data before transmission provides a number of advantages
including the elimination of data redundancy which could help an
attacker, speeding up processing by reducing the amount of data to be
processed by later steps such as signing or encryption, and reducing
overall message size. Although there have been proposals for adding
compression at other levels (for example at the MIME or SSL level)
these don't address the problem of compression of CMS content unless
the compression is supplied by an external means (for example by
intermixing MIME and CMS).  This document defines a format for using
compressed data as a CMS content type.

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