Re: [TLS] is it good using password for authentication only?
"Bingzheng Wu" <bingzheng.wbz@alibaba-inc.com> Fri, 19 June 2015 11:03 UTC
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Date: Fri, 19 Jun 2015 19:03:02 +0800
From: Bingzheng Wu <bingzheng.wbz@alibaba-inc.com>
To: "武炳正(允中)" <bingzheng.wbz@alibaba-inc.com>, tls <tls@ietf.org>
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Subject: Re: [TLS] is it good using password for authentication only?
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I am wrong again. Adding master-secret is useless. Now I think that asymmetric crypto must be used to prevent offline directory attack, which is the way PAKE works as. Sorry for disturbing. ------------------------------------------------------------------ From:武炳正(允中) <bingzheng.wbz@alibaba-inc.com> Time:2015 Jun 19 (Fri) 16:19 To:武炳正(允中) <bingzheng.wbz@alibaba-inc.com>, tls <tls@ietf.org> Subject:RE: [TLS] is it good using password for authentication only? Maybe I realize the problem. The PasswordVerify message is susceptible to offline dictionary attacks. Dose it become resistant to the attack if we add some secret generated from master-secret into the HASH? PasswordVerify = HASH(username, passward, handshake_message_hash, master-secret, label) This becomes involved with key-exchange, but it is not involved with any specific key-exchange method. It just need the key-exchange result. Bingzheng
- [TLS] is it good using password for authenticatio… Bingzheng Wu
- Re: [TLS] is it good using password for authentic… Bingzheng Wu
- Re: [TLS] is it good using password for authentic… Bingzheng Wu
- Re: [TLS] is it good using password for authentic… Manuel Pegourie-Gonnard
- Re: [TLS] is it good using password for authentic… Thijs van Dijk
- Re: [TLS] is it good using password for authentic… Mike Hamburg
- Re: [TLS] is it good using password for authentic… Manuel Pegourie-Gonnard