#nakeddiefriday - Mamot - Le Mastodon de La Quadrature du Net

Recent searches

Search options

Only available when logged in.

1 post1 participant0 posts today

DJ🌞:donor:<p>Let's get the <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> party started on this very much not-sunny day.</p><p>What I have for you today is an obscure microcontroller I took off a touch pad PCB. Top markings did not reveal anything, but the die is identified as S4L85K4X03 with no manufacturer logo. We collectively believe this to be parented at Samsung. </p><p>SiPron page: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:samsung:s4l85k4x03" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:samsung:s4l85k4x03</span></a></p>

DJ🌞:donor:<p>Welcome to the new edition of <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> everyone. The guest today is the famous ESP8266EX by Espressif, a SoC loved by many in the electronics world.</p><p>Unfortunately, the digital section is fully covered by two topmost metal layers carrying power. We do have a glorious analog/RF section though.</p><p>SiPron page: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:espressif:esp8266ex" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:espressif:esp8266ex</span></a></p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a> <a href="https://infosec.exchange/tags/microscopy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microscopy</span></a></p>

DJ🌞:donor:<p>Alright, let's get the <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> going.</p><p>Today's exhibit is AR9281 by Atheros, a very classic Wi-Fi chip found in many devices. Comes in very pink hues. A short thread with highlights follows.</p><p>SiPron page: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:atheros:ar9281-al1e" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:atheros:ar9281-al1e</span></a></p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a> <a href="https://infosec.exchange/tags/microscopy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microscopy</span></a></p>

DJ🌞:donor:<p>Hello and welcome to this week's installment of <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> !</p><p>The guest of today is the TIBPAL16R4 by TI, a programmable array logic chip made with bipolar logic. The die has 2 metal layers, its maskwork produced in 1985. A short thread follows.</p><p>More info and hi-res pano at: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:ti:tibpal16r4" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:ti:tibpal16r4</span></a></p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a> <a href="https://infosec.exchange/tags/microscopy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microscopy</span></a> <a href="https://infosec.exchange/tags/icreverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>icreverseengineering</span></a></p>

DJ🌞:donor:<p>Hey hey, you thought there be no <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> today? Here we go!</p><p>Today's entry is an Infineon/Siemens SAB-C167CR-LM, a microcontroller based on the C166 core. The die is in pleasant-looking pastel colours. :-) The die has pin 1 in top left corner. I'll do a short thread.</p><p>Many thanks to <span class="h-card" translate="no"><a href="https://troet.cafe/@debauer" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>debauer</span></a></span> for supplying the samples!</p><p>SiPron page with more info and full-res map: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:infineon:sab-c167cr-lm" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:infineon:sab-c167cr-lm</span></a></p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/silicon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>silicon</span></a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a> <a href="https://infosec.exchange/tags/microscopy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microscopy</span></a></p>

DJ🌞:donor:<p>OK folks, we're doing it! Welcome to the <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> and I got something a bit different for you today.</p><p><span class="h-card" translate="no"><a href="https://mstdn.social/@adistuder" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>adistuder</span></a></span> kindly supplied my little lab with a couple samples of genuine and fake parts, and today we'll see what's inside. Read along. 🧵</p>

DJ🌞:donor:<p>Hello again, and welcome to the <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> show.</p><p>Today's guest is an older sibling of the previous entry, again a 80C51 derivative, the 83C592 (mask ROM) packaged as 80C592 (ROMless) by Philips. A short thread with some highlights follows.</p><p>SiPron page: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:philips:p80c592" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:philips:p80c592</span></a></p><p>Many thanks to debauer for donating the samples!</p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a> <a href="https://infosec.exchange/tags/microscopy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microscopy</span></a></p>

DJ🌞:donor:<p>Hello again, and welcome to the <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> show.</p><p>Today's guest is a derivative of the ubiquitous 80C51 chip, a 83C552 (mask ROM) packaged as 80C552 (ROMless) by NXP. A short thread.</p><p>SiPron page: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:nxp:p80c552eba" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:nxp:p80c552eba</span></a></p><p>Many thanks to debauer for donating the samples!</p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a> <a href="https://infosec.exchange/tags/microscopy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microscopy</span></a></p>

DJ🌞:donor:<p>Happy <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> folks!</p><p>Today's specimen is p/n SC13890P23A by Motorola/Freescale. This came from an embedded cellular modem I tore out of [redacted]. The die is marked ATLAS-UL.</p><p>It is the most colourful die I have ever imaged. :rainbow_puke:</p><p>SiPron page: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:motorola:sc13890p23a" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:motorola:sc13890p23a</span></a></p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a> <a href="https://infosec.exchange/tags/microscopy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microscopy</span></a></p>

DJ🌞:donor:<p>Happy <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> to those who celebrates.</p><p>Today's specimen is p/n XPM850DEZT50BU by Motorola. Appearing to be a comms processor, this one came from some Very Old ethernet gear.</p><p>While there are several sea-of-gates on the die, a couple highly-organized data pipelines can be seen. One of them must belong to the MPC8xx PowerPC core.</p><p>Hi-res pano at: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:motorola:xpc850dezt50bu" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:motorola:xpc850dezt50bu</span></a></p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a> <a href="https://infosec.exchange/tags/microscopy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microscopy</span></a></p>

DJ🌞:donor:<p>So folks, how do you feel about <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> ? Will appreciate some feedback</p>

DJ🌞:donor:<p>Today's <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> entry is a TK14583 by Toko America, a FM IC for "high speed" comms coming from [redacted]. A short 🧵 </p><p>Full-res map etc: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:toko-america:tk14583" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:toko-america:tk14583</span></a></p>

DJ🌞:donor:<p>I pretty much missed the <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> but here is something to compensate for that.</p><p>This is one of Denso-branded MCUs, for which no documentation is publicly available. If anyone can recognize the CPU core used here, or can provide any other info, that'd be much appreciated. The chip was marked as MT0990, though that might not help in any way. Another chip marked MT6750 had the same die, probably only differing in the mask ROM set.</p><p>Hi-res: <a href="https://siliconpr0n.org/map/denso/mt0990/infosecdj_mz_nikpa20x/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/map/denso/mt09</span><span class="invisible">90/infosecdj_mz_nikpa20x/</span></a></p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a> <a href="https://infosec.exchange/tags/microscopy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microscopy</span></a> <a href="https://infosec.exchange/tags/wtf" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>wtf</span></a></p>

DJ🌞:donor:<p>Hey hey, it's <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> today!</p><p>And our guest is an obscure chip from a "mini arcade cabinet" toy. 🧵 </p><p>Full res panorama at: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:vrt:vh3029-004" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/archive/doku.p</span><span class="invisible">hp?id=infosecdj:vrt:vh3029-004</span></a></p>

DJ🌞:donor:<p>A quick <a href="https://infosec.exchange/tags/nakeddiefriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>nakeddiefriday</span></a> entry -- a "secure Flash" 77Q32JWSS part by Winbond.</p><p>Can tell where the main Flash array is, 8 large segments + several smaller ones. But the more fascinating part is, logic is taking more space than memory. I suppose this corroborates Winbond telling me it is all hardwired. Would love to polish this down though to peek under all the layers...</p><p>Full res: <a href="https://siliconpr0n.org/map/winbond/77q32jwss/infosecdj_mz_nikpa40x/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">siliconpr0n.org/map/winbond/77</span><span class="invisible">q32jwss/infosecdj_mz_nikpa40x/</span></a></p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://infosec.exchange/tags/microscopy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>microscopy</span></a> <a href="https://infosec.exchange/tags/reverseengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>reverseengineering</span></a></p>

Drag & drop to upload