RE: question about max length string to encrypt with rsa 2048

2010-07-11 Thread David Schwartz
Chuck Pareto wrote: > My group is using RSA with a key thats 2048 in size. > We want to encrypt strings that are longer then this > key size gives. > If we switch to a key that is 4096 what is the max > string length we can encrypt? is it double? No, no! You are doing this all wrong! RSA is an

Re: question about max length string to encrypt with rsa 2048

2010-07-10 Thread Jeffrey Walton
> "Handbook of Applied Cryptography" ("HAC") > ... but the principles stated in those books are > still valid and worth knowing. Section 9.6 of the HAC is no longer applicable, and should be considered wrong (worth mentioning since its not a typo or other errata, and it applies to the entire sec

Re: question about max length string to encrypt with rsa 2048

2010-07-09 Thread Jakob Bohm
On 09-07-2010 03:31, Chuck Pareto wrote: My group is using RSA with a key thats 2048 in size. We want to encrypt strings that are longer then this key size gives. If we switch to a key that is 4096 what is the max string length we can encrypt? is it double? You normally don't encrypt data direc