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How can I use Early-Data Header?

 
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o6asan



Joined: 27 Aug 2015
Posts: 44
Location: Japan, Fukuoka

PostPosted: Wed 24 Oct '18 4:34    Post subject: How can I use Early-Data Header? Reply with quote

Hi, I enabled TLSv1.3 on my server. Thanks for 2.4.37 release.

By the way, I added 'RequestHeader append Early-Data = "1"' to my ssl.conf and got 'AH00526: Syntax error' and 'Unknown parameter: 1'.

How can I use Early-Data Header or haven't Apache support "early-data" yet? I've not found about this information on Apache HTTP Server Documentation yet.
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6478
Location: Germany, Next to Hamburg

PostPosted: Wed 24 Oct '18 17:24    Post subject: Reply with quote

Don't use the equal sign

just

Code:

RequestHeader append Early-Data "1"
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o6asan



Joined: 27 Aug 2015
Posts: 44
Location: Japan, Fukuoka

PostPosted: Thu 25 Oct '18 4:40    Post subject: Reply with quote

Thank you, James.

The errors have gone.

But I have another question.
Before and after adding RequestHeader append Early-Data "1", I have the same message 'Early data was not sent' by 'openssl s_client ~'.

Do I need some other settings?
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6478
Location: Germany, Next to Hamburg

PostPosted: Thu 25 Oct '18 10:51    Post subject: Reply with quote

RequestHeader is what it says it is. It adds it to the client.

I think you want to use

Code:
Header append Early-Data "1"
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o6asan



Joined: 27 Aug 2015
Posts: 44
Location: Japan, Fukuoka

PostPosted: Thu 25 Oct '18 15:19    Post subject: Reply with quote

Oh, mistake.
Yes, not RequestHeader but Header. But I still have the same message.

I think Session Resumption does not work well. Do I need some settings about this?
Quote:
SSLSessionTickets on
SSLSessionCache "shmcb:${SRVROOT}/logs/ssl_scache(512000)"
SSLSessionCacheTimeout 300
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6478
Location: Germany, Next to Hamburg

PostPosted: Tue 06 Nov '18 12:38    Post subject: Reply with quote

I haven looked into the code of mod_ssl, but I'm not sure is that module handles Early-Data.
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6478
Location: Germany, Next to Hamburg

PostPosted: Wed 21 Nov '18 18:37    Post subject: Reply with quote

I looked into the code an bit further and apache does not support that at the moment.
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