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Extract compute pubkey from compute script pubkey #46

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Extract compute pubkey from compute script pubkey #46

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26 changes: 21 additions & 5 deletions silentpayments/src/receive/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -213,6 +213,26 @@
derivation_order: u32,
maybe_label_point: Option<&PublicKey>,
) -> ScriptBuf {
let p_k = get_silentpayment_pubkey(
spend_pk,
ecdh_shared_secret,
derivation_order,
maybe_label_point,
);

let (x_only_key, _) = p_k.x_only_public_key();

let assumed_tweaked_pk = TweakedPublicKey::dangerous_assume_tweaked(x_only_key);

ScriptBuf::new_p2tr_tweaked(assumed_tweaked_pk)

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 replace get_silentpayment_script_pubkey -> ScriptBuf with Default::default()
}

pub fn get_silentpayment_pubkey(
spend_pk: &PublicKey,
ecdh_shared_secret: &PublicKey,
derivation_order: u32,
maybe_label_point: Option<&PublicKey>,
) -> PublicKey {
let secp = Secp256k1::new();

let t_k = get_shared_secret(*ecdh_shared_secret, derivation_order);
Expand All @@ -231,11 +251,7 @@
P_k
};

let (x_only_key, _) = P_k.x_only_public_key();

let assumed_tweaked_pk = TweakedPublicKey::dangerous_assume_tweaked(x_only_key);

ScriptBuf::new_p2tr_tweaked(assumed_tweaked_pk)
P_k
}

pub fn compute_tweak_data(
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