1994-07-03 - Re: Password Difficulties

Header Data

From: joshua geller <joshua@cae.retix.com>
To: smb@research.att.com
Message Hash: 0ce273cd389f2dcd165d357db724f581684900cf13e53366a55c4465e29d6e03
Message ID: <199407030643.XAA04448@sleepy.retix.com>
Reply To: <9407030005.AA11165@toad.com>
UTC Datetime: 1994-07-03 06:43:44 UTC
Raw Date: Sat, 2 Jul 94 23:43:44 PDT

Raw message

From: joshua geller <joshua@cae.retix.com>
Date: Sat, 2 Jul 94 23:43:44 PDT
To: smb@research.att.com
Subject: Re: Password Difficulties
In-Reply-To: <9407030005.AA11165@toad.com>
Message-ID: <199407030643.XAA04448@sleepy.retix.com>
MIME-Version: 1.0
Content-Type: text/plain

steve bellovin writes:
>bruce schneier writes:

>	    Figure that each English character has 1.8 bits of entropy.
>	    (This is a conservative number, because it doesn't take into
>	    account case, spacing, or punctuation.)  If I want a
>	    passphrase that will map into a 64-bit keyspace, I need at
>	    least a 35-chararcter phrase.

>   Don't forget the difficulty of typing such a long phrase, with
>   echoing turned off.

but it's not that difficult. at least, I don't have any difficulty with 
it. perhaps I really am superhuman, but somehow I doubt it.