X-Recipient: archive-cygwin AT delorie DOT com DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 63BF3385E456 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com; s=default; t=1703122396; bh=c8ADCW37Qh1qpMk/aIOd0EzHev16u1YdauAgRcHeo28=; h=Date:Subject:To:Cc:References:In-Reply-To:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=bvvUxy29svu5CquYxrmPIP7hpZDpAS/9qXvyJvkb/007LyONwny73xumgY2UO/yVb PyBNDzlRli4kmDyyd6mbjSTv3imYWmA6eLQGbgho2zx3aCqRwpt4VxIk7k/q4nPZVi Budbq6RqCoXySnpD+yJ3yuBmrZC6fP75OShFPahk= X-Original-To: cygwin AT cygwin DOT com Delivered-To: cygwin AT cygwin DOT com DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 41E7F3858CD1 ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 41E7F3858CD1 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1703122382; cv=none; b=FmQBnnsqzZoqi+qrNhz2EP9wggREyqM/h18KDbX0v05k+0wVBYd1BTVD46nf96sGFwyB43ZOBB9J5XPbuPdvuUsaPviBrB3qkuypWQezVlG4BR9P1vBYu7wzh7BkIhPSeXgHtpSTBkPSOukY5LU9cfYIhYNGCBJ0VHtDYuqe6Lw= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1703122382; c=relaxed/simple; bh=mnc2fxrJpha5d/vdC+Ucxrpk3v+XaKgwWdxRFUkBuEA=; h=Message-ID:Date:MIME-Version:Subject:To:From; b=RPyJ/imI0kGKSFeRYcKDNygPtvCrtCskJioqdekVThVnvLQ5PmbYaYyexKkgEof0uuAiTqAErQWXB7KjhNyKh7fuTaibnIFRJIONtX6h16/XizmqQg4hA4XvRgux39tXGMQNBDmypLRp6zO4phiU88wSuSvBiqkiH7bR0Z/YplY= ARC-Authentication-Results: i=1; server2.sourceware.org X-ASG-Debug-ID: 1703122380-24039d253a2300a0001-w5GHUG X-Barracuda-Envelope-From: moss AT cs DOT umass DOT edu X-Barracuda-RBL-Trusted-Forwarder: 128.119.240.136 Message-ID: X-Barracuda-RBL-Trusted-Forwarder: 172.26.65.13 Date: Wed, 20 Dec 2023 20:32:55 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: /dev/u?random implementation Content-Language: en-US X-ASG-Orig-Subj: Re: /dev/u?random implementation To: jhg AT acm DOT org, cygwin AT cygwin DOT com Cc: Jim Garrison References: In-Reply-To: X-Barracuda-Connect: mailsrv.cs.umass.edu[128.119.240.136] X-Barracuda-Start-Time: 1703122380 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://barramail.cs.umass.edu:443/cgi-mod/mark.cgi X-Barracuda-BRTS-Status: 1 X-Virus-Scanned: by bsmtpd at cs.umass.edu X-Barracuda-Scan-Msg-Size: 394 X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=5.7 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.118342 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, NICE_REPLY_A, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: cygwin AT cygwin DOT com X-Mailman-Version: 2.1.30 List-Id: General Cygwin discussions and problem reports List-Archive: List-Post: List-Help: List-Subscribe: , From: Eliot Moss via Cygwin Reply-To: Eliot Moss Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "Cygwin" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id 3BL1XHTv017603 On 12/20/2023 7:32 PM, Jim Garrison via Cygwin wrote: > I dug around in the Cygwin doc looking for details on how /dev/random > and /dev/urandom are implemented, but came up empty.  Is this > documented anywhere? Writing a simple program and then watching where reading /dev/random goes using gdb suggests its implemented using the dev_random C++ library supplied by Windows. EM -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple