Re: Kaminsky finds DNS exploit

2008-07-09 Thread John Kemp
Ben Laurie wrote: Paul Hoffman wrote: First off, big props to Dan for getting this problem fixed in a responsible manner. If there were widespread real attacks first, it would take forever to get fixes out into the field. However, we in the security circles don't need to spread the Kaminsky

Re: GSM eavesdropping

2010-08-02 Thread John Kemp
On Aug 2, 2010, at 11:08 AM, Perry E. Metzger wrote: On Mon, 2 Aug 2010 11:02:54 -0400 Bill Squier g...@old-ones.com wrote: ...In his presentation at the Black Hat Conference, German GSM expert Karsten Nohl presented a tool he calls Kraken, which he claims can crack the A5/1 encryption used

[Cryptography] NIST announcement about Dual_EC_DRBG

2013-09-12 Thread John Kemp
NIST strongly recommends that, pending the resolution of the security concerns and the re-issuance of SP 800-90A, the Dual_EC_DRBG, as specified in the January 2012 version of SP 800-90A, no longer be used. http://csrc.nist.gov/publications/nistbul/itlbul2013_09_supplemental.pdf - johnk

Re: [Cryptography] PRISM-Proofing and PRISM-Hardening

2013-09-17 Thread John Kemp
On Sep 17, 2013, at 2:43 PM, Phillip Hallam-Baker hal...@gmail.com wrote: My phrase PRISM-Proofing seems to have created some interest in the press. PRISM-Hardening might be more important, especially in the short term. The objective of PRISM-hardening is not to prevent an attack

Re: [Cryptography] PRISM-Proofing and PRISM-Hardening

2013-09-18 Thread John Kemp
On Sep 18, 2013, at 4:05 AM, ianG i...@iang.org wrote: On 17/09/13 23:52 PM, John Kemp wrote: On Sep 17, 2013, at 2:43 PM, Phillip Hallam-Baker hal...@gmail.com I am sure there are other ways to increase the work factor. I think that increasing the work factor would often result