Re: 'Padding Oracle' Crypto Attack Affects Millions of ASP.NET Apps

2010-10-02 Thread Richard Outerbridge
On 2010-10-01 (274), at 12:29, Brad Hill wrote: Kevin W. Wall wrote: isn't the pre-shared key version of W3C's XML Encrypt also going to be vulnerable to a padding oracle attack. Any implementation that returns distinguishable error conditions for invalid padding is vulnerable, XML

Re: 'Padding Oracle' Crypto Attack Affects Millions of ASP.NET Apps

2010-10-02 Thread Jerry Leichter
On Oct 1, 2010, at 11:34 PM, Richard Outerbridge wrote: Any implementation that returns distinguishable error conditions for invalid padding is vulnerable... Oh come on. This is really just a sophisticated variant of the old never say which was wrong - login ID or password - attack. In

Re: 2048 bits, damn the electrons! [...@openssl.org: [openssl.org #2354] [PATCH] Increase Default RSA Key Size to 2048-bits]

2010-10-02 Thread James A. Donald
On 2010-10-01 3:23 PM, Chris Palmer wrote: In my quantitative, non-hand-waving, repeated experience with many clients in many business sectors using a wide array of web application technology stacks, almost all web apps suffer a network and disk I/O bloat factor of 5, 10, 20, ... Which does