2
votes
1answer
173 views

Localhost WebSocket defense

If a malicious application has found its way onto a computer running a localhost only WebSocket server, would it help if the communications used SSL? If so, how could SSL fail if a malicious app ...
0
votes
1answer
837 views

Why Qualys SSL Server Test is giving me 80 and not 100 in Key Exchange?

My openssl ciphers -v 'CIPHER' output is the following: ECDHE-ECDSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH Au=ECDSA Enc=AESGCM(256) Mac=AEAD ECDHE-RSA-AES256-GCM-SHA384 TLSv1.2 Kx=ECDH Au=RSA ...
3
votes
2answers
248 views

Is it true, that using symetric encryption, if attacker knows encrypted text, original message, and algorithm means he can calculate the secret?

I am a newbie in the security field, so sorry for the naive question. In my understanding, using symetric encryption, if attacker knows encrypted text, original message, and algorithm means he can ...
3
votes
1answer
252 views

Can TLS Compression be enabled on 3rd party CDN sites that have no authentication?

In this answer, @Thomas Pornin talks about remediating the CRIME attack and says: (It is a shame to have to remove SSL compression, because it is very useful to lower bandwidth requirements, ...
192
votes
3answers
43k views

CRIME - How to beat the BEAST successor?

With the advent of CRIME, BEAST's successor, what possible protection is available for an individual and/or system owner in order to protect themselves and their users against this new attack on TLS?
16
votes
1answer
3k views

Guidance for implementors of HTTPS-only sites (Server side)

The recent trend in HTTPS attacks is to attack the HTTP protocol. What should I do to increase my site's security if the only protocol I want is HTTPS? Some easy to implement ideas are Implement ...
15
votes
4answers
4k views

Options when defending against SSLstrip?

I'm wondering, does anyone have any suggestions to defend against SSLstrip particularly?