Re: [cryptography] OAEP for RSA signatures?

2013-01-27 Thread ianG
On 27/01/13 04:53 AM, Peter Gutmann wrote: ianG i...@iang.org writes: Could OAEP be considered reasonable for signatures? You need to define appropriate. For example if you mean interoperable then OAEP isn't even appropriate for encryption, let alone signatures. Oh, interoperable is not

Re: [cryptography] OAEP for RSA signatures?

2013-01-27 Thread Thierry Moreau
James Muir wrote: PSS is similar to OAEP, but is for signatures. If you have OAEP implemented, then it wouldn't take you long to do PSS, which is described in the PKCS-1v2.1 document. This is the answer I suspected in reading the original post question. Hacking OAEP into a signature scheme

Re: [cryptography] OAEP for RSA signatures?

2013-01-27 Thread James Muir
On 13-01-26 08:53 PM, Peter Gutmann wrote: ianG i...@iang.org writes: Could OAEP be considered reasonable for signatures? You need to define appropriate. For example if you mean interoperable then OAEP isn't even appropriate for encryption, let alone signatures. If you're worried about

Re: [cryptography] OAEP for RSA signatures?

2013-01-27 Thread Peter Gutmann
Ryan Sleevi ryan+cryptogra...@sleevi.com writes: Did you just suggest that the timing channels in PKCS#1 v1.5 are easier to get right than the timing channels of OAEP? Yup. The same PKCS#1 v1.5 encryption that's confounding people a decade [1] after the original attacks [2]? You're confusing

Re: [cryptography] openssl on git

2013-01-27 Thread dan
offtopic to list purpose, but perhaps timely to this thread http://www.webmonkey.com/2013/01/users-scramble-as-github-search-exposes-passwords-security-details/ --dan ___ cryptography mailing list cryptography@randombit.net

Re: [cryptography] openssl on git

2013-01-27 Thread Patrick Mylund Nielsen
I don't understand how you can accidentally check in ~/.ssh to your repository, or at least not notice afterwards. Hopefully the OpenSSL authors won't do that! On Sun, Jan 27, 2013 at 9:29 PM, d...@geer.org wrote: offtopic to list purpose, but perhaps timely to this thread

Re: [cryptography] openssl on git

2013-01-27 Thread Eitan Adler
On 27 January 2013 21:34, Patrick Mylund Nielsen cryptogra...@patrickmylund.com wrote: I don't understand how you can accidentally check in ~/.ssh to your repository, or at least not notice afterwards. Hopefully the OpenSSL authors won't do that! If you keep ~ in a git repo it is surprisingly