Re: Encryption using password-derived keys

2005-12-02 Thread Alexander Klimov
On Tue, 29 Nov 2005, Jack Lloyd wrote: The basic scenario I'm looking at is encrypting some data using a password-derived key (using PBKDF2 with sane salt sizes and iteration counts). [...] My inclination is to use the PBKDF2 output as a key encryption key, rather than using it to directly

Re: Encryption using password-derived keys

2005-12-02 Thread John Kelsey
From: Jack Lloyd [EMAIL PROTECTED] Sent: Nov 29, 2005 11:08 AM To: cryptography@metzdowd.com Subject: Encryption using password-derived keys The basic scenario I'm looking at is encrypting some data using a password-derived key (using PBKDF2 with sane salt sizes and iteration counts). I am not

RE: Encryption using password-derived keys

2005-12-02 Thread Anton Stiglic
It can be useful to derive a key encryption key from the password, and not use the key derived from the password to directly encrypt data you want to protect, when the resulting ciphertext can be found in different places where your encrypted key won't necessarly also be found. For example, to