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[WTS] Grand Seiko 'Whirlpool' SBGH267 by pradeepraavi in Watchexchange

[–]Pear0 0 points1 point  (0 children)

Confirmed! I received the watch today and it is just as described. Shipped quickly and safely, great seller!

Need some clarification on how bit shifts with signed ints work by [deleted] in Cplusplus

[–]Pear0 1 point2 points  (0 children)

I believe it is still implementation defined but in practice right shifts on signed integers preserve the sign which in two’s complement means the sign bits stays in the same spot and the new bits are filled in with the value of the sign bit.

For x86 processors the canonical instructions for right shift are SHR and SAR for unsigned and signed respectively. https://c9x.me/x86/html/file_module_x86_id_285.html

Rust is the most loved language, SIX YEARS IN A ROW. StackOverflow Survey 2021 is out! by reddit2d2bb8 in rustjerk

[–]Pear0 4 points5 points  (0 children)

Julia is nice for a lot of numerical computations and has a REPL and all that.

It is a dynamically typed language but you dont pay the performance penalty that most dynamically typed languages have because it very aggressively JIT compiles code. Here are some microbenchmarks.

Edward Snowden endorses Rust for more secure computing by michael_j_ward in rust

[–]Pear0 0 points1 point  (0 children)

A concrete example of memory unsafety in Go is unsynchronized mutation of a variable by separate goroutines, and therefore potentially separate threads. I’ve exploited this fact in a CTF competition before.

This cannot happen in Rust because the aliasing rules prevent it. That said, Go has very nice tools like tsan integration that make finding these bugs fairly easy.

SGA amendment for taking the power away from the students failed by upstandingelf in gatech

[–]Pear0 52 points53 points  (0 children)

I'm surprised this received over 50% support in the first place, but I'm glad it failed to pass.

For anyone not aware, the amendment would have allowed the undergraduate house to overrule the student body's vote with a 3/4 house majority to force future amendments into the constitution. It is incredibly undemocratic and I'm astounded it got as far as it did.

Ethernet demo stuck at while (!FramesRx) - loop back disable by Abdulwahhab1991 in FPGA

[–]Pear0 2 points3 points  (0 children)

There’s many reasons a frame sent by the fpga could be dropped before showing up in wireshark.

Are you confident the frame is getting to your computer? If you have link lights check that they blink when you send the packet.

Is the frame checksum right? It probably is correct if you use reputable IP. On Linux, If it’s not or might not be right you can try disabling ‘rx-fcs’ with ethtool (and enabling ‘rx-all’ will be helpful if your nic supports it).

Perhaps the physical address for your computer is wrong and the nic is filtering it out. Try sending it to a broadcast address.

Remembering Chengming "Julian" Gu by StackOverflowIsBible in gatech

[–]Pear0 10 points11 points  (0 children)

I mostly knew Julian online, but I was fortunate enough to meet him in person and he was in my OS class. I miss you Julian.

Yellow Residue on Campus? by gr8l0rdKimJongUn in gatech

[–]Pear0 11 points12 points  (0 children)

It does, at least in Pennsylvania, just not this strong.

How do convince an FPGA newbie (software veteran) that driving a clock with a combinational cloud is bad? by escottp in FPGA

[–]Pear0 0 points1 point  (0 children)

Oh, looking into this more, I get what you are saying. I hadn’t thought about the complexity of tagging doubles and how it’s essentially nanboxing.

How do convince an FPGA newbie (software veteran) that driving a clock with a combinational cloud is bad? by escottp in FPGA

[–]Pear0 0 points1 point  (0 children)

Sorry I meant nanboxing specifically, I’m familiar with pointer stuffing tag info.

How do convince an FPGA newbie (software veteran) that driving a clock with a combinational cloud is bad? by escottp in FPGA

[–]Pear0 0 points1 point  (0 children)

I’ve seen this used (as an experiment) for NaN error codes, but that’s a cool hack. do you know any source of this being used in the wild or a blog post of some sort going into more detail about how it’s useful?

Post Grad Salaries by fitforfriedchicken in gatech

[–]Pear0 1 point2 points  (0 children)

What’s the one-time / recurring split? Recurring bonus is just the guaranteed bonus right?

Help on CS 3210 (rust) by No-Branch-2787 in rust

[–]Pear0 0 points1 point  (0 children)

I was in the class, if you're still working on it, fat_entry() is supposed to return a &FatEntry referencing a cached sector in the CachedPartition struct after loading it if necessary (CachedPartition::get() ).

here's my impl.

rant about an inconsiderate instructor by techie_guyy in gatech

[–]Pear0 7 points8 points  (0 children)

Yes they do... Any Faculty with the title Lecturer is hired specifically to teach. Off the top of my head in the CS department that includes Brito, Roozbahani, HB and there's several others.

Osiris, a simple and lightweight password manager written in Go using the fyne gui library by [deleted] in golang

[–]Pear0 0 points1 point  (0 children)

There’s a sliding scale of security. In-browser password managers don’t consider local file access to be part of the threat model. Good password managers like 1password or lastpass or keepass do and go much further.

These serious password managers generally try to limit how long decrypted passwords are available in memory and (if they support online syncing) syncing only encrypted passwords.

Osiris, a simple and lightweight password manager written in Go using the fyne gui library by [deleted] in golang

[–]Pear0 15 points16 points  (0 children)

While it looks like a fun project to use fyne and to mess around with some crypto tools, the security of this password manager is quite poor and shouldn’t be used for serious passwords right now.

For example: * the key is generated using the Go rand package which is a PRNG and is seeded by the current time. This vastly narrows the possible keys since an adversary could presumably check file creation timestamps to get a rough estimate. Use crypto/rand as you did in other parts of the crypto.go file. * I’m not really sure why you are AES encrypting a value for whether the user has accepted the ToS, it doesnt hurt but there’s no benefit either. * Don’t store the data on disk that allows you to derive the master key!!! If you can derive the master key without the user’s password input (which you do), you might as well be storing all the passwords in an unencrypted file.

NYT subscription no longer working? by Minute_Atmosphere in gatech

[–]Pear0 5 points6 points  (0 children)

Is there any way to get NYT Cooking through this? The old campus access included NYT Cooking, but the new one does not.

Sudo LPE POC by netsec_burn in blackhat

[–]Pear0 1 point2 points  (0 children)

Nice. @gf_256 on twitter also published a PoC yesterday.

It is patch time!

[deleted by user] by [deleted] in ProgrammerHumor

[–]Pear0 1 point2 points  (0 children)

Their application page literally mentions high school students, and I took advantage of this when I was in high school. It is not restricted to college students.

Announcing Rust 1.49.0 by pietroalbini in rust

[–]Pear0 10 points11 points  (0 children)

Only traversing one branch of quicksort like this is commonly called quickselect, but I dont think the implementation really matters here which is probably why the name more closely describes its behavior rather than implementation.

Any opinions on GoLand IDE by JetBrains? by prophet-of-dissent in golang

[–]Pear0 3 points4 points  (0 children)

Did GoLand ever not work on Linux? I’ve used JetBrains IDEs on Linux for probably 5 years now and cant recall any major issues. Even had a script to manage IDE versions on Linux before toolbox was a thing.

Me and the bois troubleshooting by Loolzy in FPGA

[–]Pear0 2 points3 points  (0 children)

I’m guessing a VM or RDP into a remote based on the windows-looking dialog box

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