Become a sponsor to Ori
👋 Hey, I'm Ori
I build open source tools for Bitcoin cryptography — puzzle solvers, signature analyzers, and security research utilities.
🔧 What I'm working on
boha — Comprehensive database of crypto puzzles, bounties and challenges with Rust/TypeScript libraries
vgen — GPU-accelerated Bitcoin vanity address generator
vusi — ECDSA signature vulnerability analysis (weak nonces, reused k-values)
kangaroo — Pollard's Kangaroo solver for discrete log problems
🎯 Why sponsorship matters
These tools help security researchers find vulnerabilities before bad actors do. Your support means:
⏰ More time for open source instead of client work
🔬 Deeper research into ECDSA edge cases and GPU optimization
📚 Better documentation and tutorials for the community
💡 How I'll use the funds
100% goes back into the work — server costs for testing, research time, and keeping these tools maintained and free for everyone.
Currently exploring: Pollard's Kangaroo on GPU, weak key detection patterns, and the beautiful math at the edges of elliptic curves.
Reaching 10 sponsors means there's a real community around these tools. It's validation that this work matters — and motivation to keep shipping.
Featured work
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oritwoen/boha
Crypto bounties, puzzles and challenges data library
Rust 10 -
oritwoen/kangaroo
GPU-accelerated Pollard's Kangaroo ECDLP solver for secp256k1 (Vulkan/Metal/DX12)
Rust 15 -
oritwoen/vuke
Research tool for studying vulnerable cryptographic key generation (brainwallet, PRNG, milksad, LCG, xorshift)
Rust 9 -
oritwoen/vusi
ECDSA signature vulnerability analysis — nonce reuse, polynonce, biased nonces, lattice/HNP attacks
Rust 2 -
oritwoen/vgen
Cryptocurrency vanity address generator with regex pattern matching and GPU acceleration
Rust 9 -
oritwoen/shaha
Hash database builder and reverse lookup tool — SHA256, RIPEMD160, Keccak256, BLAKE3 and more
Rust 5