051027cb6d
git-subtree-dir: sapling-crypto git-subtree-mainline:9f748554d0git-subtree-split:21084bde20
12 lines
342 B
Rust
12 lines
342 B
Rust
use blake2_rfc::blake2b::Blake2b;
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use jubjub::{JubjubEngine, ToUniform};
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pub fn hash_to_scalar<E: JubjubEngine>(persona: &[u8], a: &[u8], b: &[u8]) -> E::Fs {
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let mut hasher = Blake2b::with_params(64, &[], &[], persona);
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hasher.update(a);
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hasher.update(b);
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let ret = hasher.finalize();
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E::Fs::to_uniform(ret.as_ref())
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}
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