I am almost sure its after...
First you encrypt and then compress.

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Adayadil Thomas
Sent: Tuesday, September 26, 2006 7:46 PM
To: openssl-dev@openssl.org
Subject: SSL / zlib compression

Greetings.

I have an SSL session in which the client and server has negotiated for
cipherSuite         SSL_RSA_WITH_RC4_128_MD5
compressionMethod                zlib-compression

Now, is the zlib-compression applied before encryption or after ?

data -> zlib-compression -> encryption ======> decrypt ->
zlib->inflate-> data

or

data -> encryption -> zlib-compression ======> zlib->inflate-> decrypt
-> data


Thanks
Ashley Thomas
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______________________________________________________________________
OpenSSL Project                                 http://www.openssl.org
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