Question regarding TLS

2009-08-21 Thread Erik Norgaard
Hi: This may not be the right list to ask, if so please redirect me, thanks. I have been asked to study the possibility of using for authentication without encryption, ie using TLS_RSA_WITH_NULL_SHA. Reading the RFC5246, it appears that the server authentication is only possible through key

Re: RSA key length and size

2005-02-01 Thread Erik Norgaard
Charles B Cranston wrote: Doing it the hard way requires roughly 1.5 times key length number of modular multiplies (assuming about half the bits are ones and half zeroes) so if the shortcutted public key operation takes 17 units of time the non-shortcutted private key operation takes about 1500 (as

Re: RSA key length and size

2005-02-01 Thread Erik Norgaard
Charles B Cranston wrote: Doing it the hard way requires roughly 1.5 times key length number of modular multiplies (assuming about half the bits are ones and half zeroes) so if the shortcutted public key operation takes 17 units of time the non-shortcutted private key operation takes about 1500 (as

Re: RSA key length and size

2005-02-01 Thread Erik Norgaard
Charles B Cranston wrote: You should factor in the RSA speedups in your space estimates. Typically a public exponent of 2^16+1 is used so you need not pass this separately for a public key. However, the speedup for the private key operation involves all those other fields in a private key, which e

RSA key length and size

2005-02-01 Thread Erik Norgaard
Hi, Sorry, I haven't written to the list before, if you know of sources of information that will answer my question, please just give me a link. I am programming a JavaCard v2.1, to provide encryption and decryption using either stored private/public keys or keys passed to the input data buffer