Re: how long should a password be?

2008-05-22 Thread Mark H. Wood
FWIW I usually use a gadget called 'apg' to generate random passwords. It has a mode in which it will only produce strings that are pronounceable (sometimes just barely so), which I find a great aid to memorability. For example, I can recall my home WEP key easily even though I almost never see

Re: how long should a password be?

2008-05-10 Thread Faramir
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Peter Pentchev escribió: On Tue, May 06, 2008 at 04:52:31AM -0400, Faramir wrote: [snip Sven Radde's explanations about the salt] (removed the part where I say what I understood about salt) It seems that you are missing another important point

Re: how long should a password be?

2008-05-10 Thread Bill Royds
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 10-May-08, at 04:37 , Peter Pentchev wrote: It seems that you are missing another important point about the salt - it is generated randomly each and every time something needs to be encrypted :) There is no such thing as the salt value for

Re: how long should a password be?

2008-05-06 Thread Sven Radde
Hi! Am Montag, den 05.05.2008, 22:58 -0400 schrieb Faramir: So there are only 64 bits in an 8 character password, which can be cracked quite quickly using rainbow tables for any password. That is unlikely to work because gpg uses a random 64 bit salt as well as extended hashing. I

Re: how long should a password be?

2008-05-05 Thread Noiano
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Matt Kinni wrote: Everyone says it should be as long as possible, but there comes a point where it's just impossible to remember anything longer than 20 characters. What do you think? Well IMHO you should merge together some significant (just

Re: how long should a password be?

2008-05-05 Thread Sven Radde
Hi! Matt Kinni schrieb: Everyone says it should be as long as possible (...) What do you think? You might find this interesting read: http://www.schneier.com/blog/archives/2007/01/choosing_secure.html Also keep in mind that in order to attack your password, an attacker would first have to

Re: how long should a password be?

2008-05-05 Thread Faramir
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Noiano escribió: Matt Kinni wrote: Everyone says it should be as long as possible, but there comes a point where it's just impossible to remember anything longer than 20 characters. What do you think? . - longer = 25 IMHO - nonsense

Re: how long should a password be?

2008-05-05 Thread Wolf Canis
Sven Radde wrote: Hi! Matt Kinni schrieb: Everyone says it should be as long as possible (...) What do you think? You might find this interesting read: http://www.schneier.com/blog/archives/2007/01/choosing_secure.html Interesting article, thanks for the link. :-) Also keep in mind that

Re: how long should a password be?

2008-05-05 Thread Wolf Canis
Bill Royds wrote: On 5-May-08, at 03:55 , Wolf Canis wrote: There are infinite possibilities. That's the trick. Not the length of a password is decisive but the quality. The quality of your password decides how much effort is necessary to hack it. Unfortunately that is not true. Since

Re: how long should a password be?

2008-05-05 Thread Bill Royds
On 5-May-08, at 03:55 , Wolf Canis wrote: There are infinite possibilities. That's the trick. Not the length of a password is decisive but the quality. The quality of your password decides how much effort is necessary to hack it. Unfortunately that is not true. Since most systems use a

re: how long should a password be?

2008-05-05 Thread vedaal
Robert J. Hansen rjh at sixdemonbag.org wrote on Mon May 5 10:36:16 CEST 2008 : Everyone says it should be as long as possible Not at all. At some point the passphrase becomes stronger than the symmetric encryption algorithm. Then it's time to stop. so, assuming 95 keyboard possibilities

Re: how long should a password be?

2008-05-05 Thread Werner Koch
On Mon, 5 May 2008 14:18, [EMAIL PROTECTED] said: So there are only 64 bits in an 8 character password, which can be cracked quite quickly using rainbow tables for any password. That is unlikely to work because gpg uses a random 64 bit salt as well as extended hashing. Salam-Shalom,

Re: how long should a password be?

2008-05-05 Thread David Shaw
On May 5, 2008, at 4:05 AM, Sven Radde wrote: Hi! Matt Kinni schrieb: Everyone says it should be as long as possible (...) What do you think? You might find this interesting read: http://www.schneier.com/blog/archives/2007/01/choosing_secure.html That's a good article. See this also: