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rust-bitcoin-unsafe-fast/hashes/embedded
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Tobin C. Harding fd4586eaae
Invert dependency between io and hashes 
Currently in order to release `hashes v1.0` we need to 1.0 `io` as well.
For multiple reasons, many out of our control, the `io` crate may not
stabalise any time soon.

Instead we can invert the dependency between the two crates.

This is an ingenious idea, props to Kixunil for coming up with it.

Notes

- `io` does not currently re-export the `hashes` crate.
- This work highlights that we cannot call `hash_reader` on a siphash.
- The `Hmac::hash_reader` uses the default key which may not be obvious.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
 		2025-02-11 09:17:21 +11:00
..
scripts ci: shellcheck checks 2024-05-11 18:08:53 +00:00
src hashes: Make hex dependency optional 2024-11-14 09:36:55 +11:00
Cargo.toml Invert dependency between io and hashes 2025-02-11 09:17:21 +11:00
README.md hashes/embedded: Add script dir and README 2023-07-18 10:27:48 +10:00
memory.x Import bitcoin_hashes crate into hashes 2022-11-08 08:58:09 +11:00

README.md

Running

To run the embedded test, first prepare your environment:

sudo ./scripts/install-deps
rustup +nightly target add thumbv7m-none-eabi

Then:

source ./scripts/env.sh && cargo +nightly run --target thumbv7m-none-eabi

Output should be something like:

hash:ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad hash_check:ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad
hash:ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad hash_check:ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad

Cleanup

After sourcing scripts/env.sh and before building again using another target you'll want to unset RUSTFLAGS otherwise you'll get linker errors.

unset RUSTFLAGS