Sorry, forgot to mention that the advice below assumes you're using a different salt (see http://en.wikipedia.org/wiki/Key_derivation_function if you don't know what that means) for each message. If you're planning to use the same salt, you should generate random IVs instead.
See http://www.cryptopp.com/wiki/RandomNumberGenerator for how to generate random byte arrays. ----- Original Message ----- From: "Wei Dai" <[EMAIL PROTECTED]> To: "Rash" <[EMAIL PROTECTED]>; "Crypto++ Users" <[EMAIL PROTECTED]> Sent: Tuesday, February 20, 2007 2:56 AM Subject: Re: Encryption and Decryption of text files > > You can use PKCS12_PBKDF::DeriveKey to do this. Call it twice with > different > "purpose" parameters to generate the key and IV. > > ----- Original Message ----- > From: "Rash" <[EMAIL PROTECTED]> > To: "Crypto++ Users" <[EMAIL PROTECTED]> > Sent: Monday, February 19, 2007 5:28 PM > Subject: Re: Encryption and Decryption of text files > > >> >> Hi guys, >> I dont understand why is this forum used if there is nobody to reply >> our queries. >> >> I'm seriously getting mad to find a solution to this simple question. >> But I dont know there is nobody to help...Is there other links which >> can help me to solve my queries. >> >> I have a password "somepassword" >> I want to calculate key and IV value based on length of password. This >> key and IV value will be passed to AES_CTR_Encrypt function defined in >> the library. >> >> Please help guys.... >> Someone please..... >> >> Waiting eagerly >> >> >> > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the "Crypto++ Users" Google Group. To unsubscribe, send an email to [EMAIL PROTECTED] More information about Crypto++ and this group is available at http://www.cryptopp.com. -~----------~----~----~----~------~----~------~--~---
