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Path: ...!weretis.net!feeder9.news.weretis.net!news.quux.org!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Richard Heathfield <rjh@cpax.org.uk> Newsgroups: sci.crypt Subject: Re: Generate random passwords with your mouse ... :-) Date: Thu, 6 Mar 2025 13:53:40 +0000 Organization: Fix this later Lines: 48 Message-ID: <vqc9d5$30gab$1@dont-email.me> References: <vqaaim$1q8rg$1@paganini.bofh.team> <vqafqv$2jg8b$2@dont-email.me> <vqbnmd$21e9n$1@paganini.bofh.team> <vqbpl5$2tqjk$1@dont-email.me> <vqc784$2281i$1@paganini.bofh.team> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Thu, 06 Mar 2025 14:53:42 +0100 (CET) Injection-Info: dont-email.me; posting-host="a12ade0f7e5b6fab51cfc5e27fedd0be"; logging-data="3162443"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18A/4jGoWI5Zb4s/XkR4N0KvvjwDqooYaXxMzXwHmY5zQ==" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:E/RtkndLJpOEfVAgvuwPLHGwEyQ= Content-Language: en-GB In-Reply-To: <vqc784$2281i$1@paganini.bofh.team> Bytes: 2635 On 06/03/2025 13:16, Stefan Claas wrote: > You may check out the additional Linux code. Well, okay, I did. I asked for 1 character, which took me maybe 2 or 3 seconds (should be command line args, by the way), and then I got a character back pretty much immediately, as one would expect. Then I ran it again, this time asking for 2 characters. For over 3 minutes I jiggled the mouse like crazy, to no avail. In the end I hit ^C. Here's my output. Note the position of the interrupt at the end of the "Progress" line. rjh@hero:~/alldata/dev/crypto/stefanclaas/entropy/mouse$ time ../scmouse Enter desired number of hex bytes (default is 16, max 256): 2 Generate character-based password instead of hex? (1=yes, 0=no): 1 Using 2 bytes for entropy collection Please move your mouse to collect entropy... Take your time, each mouse movement is being recorded. Progress: 50% [##########----------]^C Entropy collection completed! Random Password: Za SHA256: ccb4d4846d431717f5bad8aabbad7d2b7e07f1611f506964c5c0c1af8f9a07dd real 3m3.799s user 0m0.834s sys 0m2.252s At 90+ seconds per byte, I can get entropy faster from my 20d16 --- 80 bits per chuck, at as fast a speed as I can type them in. Why is it so slow? -- Richard Heathfield Email: rjh at cpax dot org dot uk "Usenet is a strange place" - dmr 29 July 1999 Sig line 4 vacant - apply within