curve25519_dalek crate = runtime error

[brandonros]

use ed25519_compact::ge_scalarmult_base;
use curve25519_dalek::{constants, Scalar};

// fails
fn derrive_public_key(hashed_private_key_bytes: [u8; 64]) -> [u8; 32] {
    let mut input = [0u8; 32];
    input.copy_from_slice(&hashed_private_key_bytes[0..32]);
    let scalar = Scalar::from_bytes_mod_order(input);
    let point = constants::ED25519_BASEPOINT_TABLE * &scalar;
    let compressed_point = point.compress();
    let public_key_bytes = compressed_point.to_bytes();
    public_key_bytes
}

// works
fn derrive_public_key_compact(hashed_private_key_bytes: [u8; 64]) -> [u8; 32] {
    let mut input = [0u8; 32];
    input.copy_from_slice(&hashed_private_key_bytes[0..32]);
    let public_key_bytes = ge_scalarmult_base(&input).to_bytes();
    public_key_bytes
}

[package]
name = "ed25519_vanity_kernel"
version = "0.1.0"
edition = "2024"

[lib]
crate-type = ["cdylib", "rlib"]

[dependencies]
cuda_std = { git = "https://github.com/Rust-GPU/Rust-CUDA.git" }
ed25519-compact = { git = "https://github.com/brandonros/rust-ed25519-compact.git", rev = "7605359ed8508d4cef3b958157ad41108261f8d1", default-features = false, features = ["cuda"] }
sha2 = { version = "0.10.8", default-features = false }
curve25519-dalek = { version = "4.1.3", default-features = false, features = ["alloc", "precomputed-tables"] }
bs58 = { version = "0.5.1", default-features = false }
rand_core = { version = "0.9.3" }
rand_xorshift = { version = "0.4.0", default-features = false }

[build-dependencies]
cuda_builder = { git = "https://github.com/Rust-GPU/Rust-CUDA.git" }

Not sure if this is helpful. Great crate + ecosystem, hope I'm helping trying to "real world use it". Please let me know how I can debug more to provide more meaningful report.

https://github.com/brandonros/ed25519-vanity-rs/tree/no-compact if needed for "full working example"

cc @jorge-ortega let me know if you want to work together on this if you have the cycles

[brandonros]

similar to #207 and #203

[brandonros]

illegal-address.ptx.zip

$ cargo run --release -- aa 256 256
    Finished `release` profile [optimized] target(s) in 0.03s
     Running `target/release/ed25519_vanity aa 256 256`
Found 1 CUDA devices
Starting device 0
[0] Loading module...
[0] Starting search loop...

thread 'main' panicked at src/main.rs:123:32:
called `Result::unwrap()` on an `Err` value: IllegalAddress
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[LegNeato]

I don't have a ton of time right now to help you debug, but I wanted to pop in and say thank you for the great bug reports and pointers to the repo. Makes it a lot easier when one of us has time! 🍻