@jatescher

Founder at Bitski. Previously built @WillCall. @Jatescher@mastodon.social

 San Francisco, CA
juliantescher.com
Joined February 2009
  • Tweets2.9K
  • Following2.1K
  • Followers3.3K
85Media
new little song: "The Re-Org Rag (I'm My Own VP)"
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NIST PQC Algorithms to be Standardized: Public-Key Encryption/KEMs - CRYSTALS-KYBER Digital Signatures - CRYSTALS-Dilithium - Falcon - SPHINCS+ groups.google.com/a/list.nis…
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Julian Tescher retweeted
nikhil
@jhanikhil1 Jul 2021
in cursed news: today I wrote some Kubernetes YAML that is *also* valid AT&T syntax x86_64 assembly (both print hello world)
kubeajsd: .data msg: .asciz "Hello, world!\n" meme: .text .global _main _main: mov $0x02000004, %rax kubeaa: mov $1, %rdi /* apiVersion: apps/v1 kind: Deployment metadata: kube2: aa */ name: nop spec: kube5: mov msg@GOTPCREL(%rip), %rsi /* replicas: 1 selector: matchLabels: app: Nop kube6: aa */ template: metadata: labels: app: Nop kube3: mov $13, %rdx /* spec: containers: - image: gcr.io/google_containers/echoserver:1.0 imagePullPolicy: Always name: echoserver ports: - containerPort: 8080 kube4: aa */ kube9: syscall mov $0x02000001, %rax xor $0, %rdi syscall

ALT kubeajsd: .data msg: .asciz "Hello, world!\n" meme: .text .global _main _main: mov $0x02000004, %rax kubeaa: mov $1, %rdi /* apiVersion: apps/v1 kind: Deployment metadata: kube2: aa */ name: nop spec: kube5: mov msg@GOTPCREL(%rip), %rsi /* replicas: 1 selector: matchLabels: app: Nop kube6: aa */ template: metadata: labels: app: Nop kube3: mov $13, %rdx /* spec: containers: - image: gcr.io/google_containers/echoserver:1.0 imagePullPolicy: Always name: echoserver ports: - containerPort: 8080 kube4: aa */ kube9: syscall mov $0x02000001, %rax xor $0, %rdi syscall

$ kubectl apply -f cursed.yaml.s --validate=false deployment.apps/nop created $ as -target x86_64-apple-macos10.12 cursed.yaml.s -o hello_world.o $ ld -macosx_version_min 10.12 hello_world.o -o hello_world -lSystem -L /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib $ ./hello_world Hello, world!

ALT $ kubectl apply -f cursed.yaml.s --validate=false deployment.apps/nop created $ as -target x86_64-apple-macos10.12 cursed.yaml.s -o hello_world.o $ ld -macosx_version_min 10.12 hello_world.o -o hello_world -lSystem -L /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib $ ./hello_world Hello, world!

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What's a handy reverse engineering trick that you think more people should know about?
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Tired: Google Maps Wired: telnet mapscii.me
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Layer 1: Physical Layer 2: Data Link Layer 3: Network Layer 4: Transport Layer 5: Session Layer 6: Presentation Layer 7: Application Layer 8: Politics Layer 9: Demons Layer 10: Subliminal space Layer 11: The Realms of Setekh Layer 12: Sleep paralysis Layer 13: Printers
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Ethan Mollick
@emollick16 Mar 2021
Scientists have also successfully built logic gates by using swarms of soldier crabs. It takes about 80 🦀 to operate a logic gate, and there are 8 logic gates in a byte, so 640,000 crabs can be used to store a single tweet. Which seems kind of horrifying. 🦀🦀🦀🦀🦀🦀🦀🦀
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🎀@fractalmagica2 Feb 2021
using bubble sort is a compiler error
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Caleb Watney
@calebwatney5 Jan 2021
RIP stock photography openai.com/blog/dall-e/
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For the new followers today, here’s a, “I just discovered crows are awesome,” starter pack: 1) Crows can live a long time (14-17y), and are generally territorial. That means the crows you interact with outside your home/work may be the same individuals for over a decade.
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Marina Amaral
@marinamaral28 Dec 2020
[Thread] In 1482, Da Vinci wrote out a letter and a list of his capabilities and sent it off to the Duke of Milan, hoping to get employment. "... I have methods for destroying every fortress (...) Also I can execute sculpture in marble, bronze and clay." See the next tweets.
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MIT CSAIL
@MIT_CSAIL17 Oct 2020
Programming languages ranked by how much electricity they use: bit.ly/ProgEnergy (v/@DavidCasselTNS @thenewstack)
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Brad Frost
@brad_frost29 Sep 2020
npm install WARN WARN WARN install obtuse warning done install ERROR but don't worry about it install thank you! plea for donation warning in Elvish maintainer looking for job ;) gobbledygook marriage proposal added 2540950582 packages found 1029402984 vulnerabilities
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At 12:26pm on Sunday, we'll hit unix timestamp 1600000000. I am unreasonably excited. epochconverter.com/countdown

Unix Timestamp Countdown - Epoch Converter

Countdown to a specific Unix timestamp. This page provides a live countdown to any Unix timestamp you choose, showing the remaining time in seconds until that timestamp is reached. You can enter any...

epochconverter.com
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XKCD Comic
@xkcdComic17 Aug 2020
Dependency xkcd.com/2347/ m.xkcd.com/2347/
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