Re: Security by asking the drunk whether he's drunk

2009-01-02 Thread Paul Hoffman
At 10:19 PM -0500 12/30/08, Jerry Leichter wrote: Robert Graham writes in Errata Security (http://erratasec.blogspot.com/2008/12/not-all-md5-certs-are-vulnerable.html) that the attack depends on being able to predict the serial number field that will be assigned to a legitimate certificate by

Re: A History of U.S. Communications Security

2009-01-02 Thread Marcus Brinkmann
Pehr Söderman wrote: Freshly declassified and a rather interesting read: A History of U.S. Communications Security (Volumes I and II, 1973) David G. Boak Lectures, National Security Agency (NSA) http://www.governmentattic.org/2docs/Hist_US_COMSEC_Boak_NSA_1973.pdf (From Bruce

Re: MD5 considered harmful today

2009-01-02 Thread Len Sassaman
On Tue, 30 Dec 2008, Hal Finney wrote: - The attack relies on cryptographic advances in the state of the art for finding MD5 collisions from inputs with different prefixes. These advances are not yet being published but will presumably appear in 2009. To insert a malicious