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[198.27.14.65]) by smtp.gmail.com with ESMTPSA id a15sm5223243ilb.11.2021.01.29.17.50.50 for (version=TLS1 cipher=ECDHE-ECDSA-AES128-SHA bits=128/128); Fri, 29 Jan 2021 17:50:51 -0800 (PST) Message-ID: <6014BB72.204@gmail.com> Date: Fri, 29 Jan 2021 20:50:42 -0500 From: Nemo Nusquam User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.5; en-GB; rv:1.9.2.23) Gecko/20110920 Thunderbird/3.1.15 MIME-Version: 1.0 To: tuhs@minnie.tuhs.org References: <20210124183653.GD21030@mcvoy.com> <202101242045.10OKjDvA964774@darkstar.fourwinds.com> <20210124211100.GI21030@mcvoy.com> <202101242114.10OLEYGk966708@darkstar.fourwinds.com> <20210124212525.GJ21030@mcvoy.com> <202101242333.10ONXjcI974038@darkstar.fourwinds.com> <202101250021.10P0L3Z2976588@darkstar.fourwinds.com> <6557f782-ecb1-6476-1eda-e23f30f9bbea@bitsavers.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [TUHS] tangential unix question: whatever happened to NeWS? X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On 29/01/2021 17:02, Dave Horsfall wrote: > On Mon, 25 Jan 2021, John Cowan wrote: > >> I've been messing around with X.680, aka ASN/1. Its reputation for >> horrible evilness, I find, primarily comes from the Packed Encoding >> Rules and the interface with statically typed languages, both of >> which require dealing with the schema language programmatically. But >> if you want to drive it from a dynamically typed language, it's dirt >> simple: to write, see what data type you have, output a type and >> length and value (or type and value and terminator), and there you are. > > I was never quite sure what to make of ASN.1 and BER; it seemed to > solve the problem of OpenLDAP applications talking to each other (and > I got quite good at reading wire traces), but it somehow seemed wrong > when every box was running FreeBSD on Intel/AMD. > > -- Dave BER does not work for digital signatures (because encodings are not unique), hence DER. N.