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21 lines
568 B
Rust
21 lines
568 B
Rust
use ciphersuite::{Ciphersuite, Secp256k1};
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use bitcoin_serai::bitcoin::key::{Parity, XOnlyPublicKey};
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pub(crate) mod output;
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pub(crate) mod transaction;
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pub(crate) mod block;
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pub(crate) fn x_coord_to_even_point(key: &[u8]) -> Option<<Secp256k1 as Ciphersuite>::G> {
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if key.len() != 32 {
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None?
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};
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// Read the x-only public key
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let key = XOnlyPublicKey::from_slice(key).ok()?;
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// Convert to a full public key
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let key = key.public_key(Parity::Even);
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// Convert to k256 (from libsecp256k1)
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Secp256k1::read_G(&mut key.serialize().as_slice()).ok()
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}
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