81 lines
2.1 KiB
Rust
81 lines
2.1 KiB
Rust
use std::{convert::TryFrom, marker::PhantomData};
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use crate::{Binding, Error, PublicKey, Randomizer, SigType, Signature, SpendAuth};
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/// A refinement type indicating that the inner `[u8; 32]` represents an
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/// encoding of a RedJubJub secret key.
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#[derive(Copy, Clone, PartialEq, Eq, Debug)]
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pub struct SecretKeyBytes<T: SigType> {
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bytes: [u8; 32],
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_marker: PhantomData<T>,
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}
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impl<T: SigType> From<[u8; 32]> for SecretKeyBytes<T> {
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fn from(bytes: [u8; 32]) -> SecretKeyBytes<T> {
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SecretKeyBytes {
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bytes,
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_marker: PhantomData,
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}
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}
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}
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impl<T: SigType> From<SecretKeyBytes<T>> for [u8; 32] {
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fn from(refined: SecretKeyBytes<T>) -> [u8; 32] {
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refined.bytes
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}
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}
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/// A RedJubJub secret key.
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// XXX PartialEq, Eq?
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#[derive(Copy, Clone, Debug)]
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pub struct SecretKey<T: SigType> {
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// fields
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_marker: PhantomData<T>,
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}
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impl<T: SigType> From<SecretKey<T>> for SecretKeyBytes<T> {
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fn from(pk: SecretKey<T>) -> SecretKeyBytes<T> {
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unimplemented!();
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}
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}
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// XXX could this be a From impl?
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impl<T: SigType> TryFrom<SecretKeyBytes<T>> for SecretKey<T> {
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type Error = Error;
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fn try_from(bytes: SecretKeyBytes<T>) -> Result<Self, Self::Error> {
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unimplemented!();
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}
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}
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impl<'a, T: SigType> From<&'a SecretKey<T>> for PublicKey<T> {
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fn from(sk: &'a SecretKey<T>) -> PublicKey<T> {
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unimplemented!();
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}
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}
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impl<T: SigType> SecretKey<T> {
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/// Randomize this public key with the given `randomizer`.
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pub fn randomize(&self, randomizer: Randomizer) -> PublicKey<T> {
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unimplemented!();
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}
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}
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impl SecretKey<Binding> {
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/// Create a Zcash `BindingSig` on `msg` using this `SecretKey`.
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// Similar to signature::Signer but without boxed errors.
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pub fn sign(&self, msg: &[u8]) -> Signature<Binding> {
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// could use sign_inner
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unimplemented!();
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}
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}
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impl SecretKey<SpendAuth> {
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/// Create a Zcash `SpendAuthSig` on `msg` using this `SecretKey`.
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// Similar to signature::Signer but without boxed errors.
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pub fn sign(&self, msg: &[u8]) -> Signature<SpendAuth> {
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// could use sign_inner
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unimplemented!();
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}
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}
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