Struct breez_sdk_core::bitcoin::util::key::KeyPair
pub struct KeyPair(/* private fields */);
Expand description
Opaque data structure that holds a keypair consisting of a secret and a public key.
§Serde support
Implements de/serialization with the serde
and_global-context
features enabled. Serializes
the secret bytes only. We treat the byte value as a tuple of 32 u8
s for non-human-readable
formats. This representation is optimal for for some formats (e.g. bincode
) however other
formats may be less optimal (e.g. cbor
). For human-readable formats we use a hex string.
§Examples
Basic usage:
use secp256k1::{rand, KeyPair, Secp256k1};
let secp = Secp256k1::new();
let (secret_key, public_key) = secp.generate_keypair(&mut rand::thread_rng());
let key_pair = KeyPair::from_secret_key(&secp, &secret_key);
Implementations§
§impl KeyPair
impl KeyPair
pub fn display_secret(&self) -> DisplaySecret
pub fn display_secret(&self) -> DisplaySecret
Formats the explicit byte value of the secret key kept inside the type as a little-endian hexadecimal string using the provided formatter.
This is the only method that outputs the actual secret key value, and, thus, should be used with extreme precaution.
§Example
use secp256k1::ONE_KEY;
use secp256k1::KeyPair;
use secp256k1::Secp256k1;
let secp = Secp256k1::new();
let key = ONE_KEY;
let key = KeyPair::from_secret_key(&secp, &key);
// Here we explicitly display the secret value:
assert_eq!(
"0000000000000000000000000000000000000000000000000000000000000001",
format!("{}", key.display_secret())
);
// Also, we can explicitly display with `Debug`:
assert_eq!(
format!("{:?}", key.display_secret()),
format!("DisplaySecret(\"{}\")", key.display_secret())
);
§impl KeyPair
impl KeyPair
pub fn as_ptr(&self) -> *const KeyPair
pub fn as_ptr(&self) -> *const KeyPair
Obtains a raw const pointer suitable for use with FFI functions.
pub fn as_mut_ptr(&mut self) -> *mut KeyPair
pub fn as_mut_ptr(&mut self) -> *mut KeyPair
Obtains a raw mutable pointer suitable for use with FFI functions.
pub fn from_secret_key<C>(secp: &Secp256k1<C>, sk: &SecretKey) -> KeyPairwhere
C: Signing,
pub fn from_secret_key<C>(secp: &Secp256k1<C>, sk: &SecretKey) -> KeyPairwhere
C: Signing,
Creates a KeyPair
directly from a Secp256k1 secret key.
pub fn from_seckey_slice<C>(
secp: &Secp256k1<C>,
data: &[u8],
) -> Result<KeyPair, Error>where
C: Signing,
pub fn from_seckey_slice<C>(
secp: &Secp256k1<C>,
data: &[u8],
) -> Result<KeyPair, Error>where
C: Signing,
Creates a KeyPair
directly from a secret key slice.
§Errors
Error::InvalidSecretKey
if the provided data has an incorrect length, exceeds Secp256k1
field p
value or the corresponding public key is not even.
pub fn from_seckey_str<C>(
secp: &Secp256k1<C>,
s: &str,
) -> Result<KeyPair, Error>where
C: Signing,
pub fn from_seckey_str<C>(
secp: &Secp256k1<C>,
s: &str,
) -> Result<KeyPair, Error>where
C: Signing,
Creates a KeyPair
directly from a secret key string.
§Errors
Error::InvalidSecretKey
if corresponding public key for the provided secret key is not even.
pub fn new<R, C>(secp: &Secp256k1<C>, rng: &mut R) -> KeyPair
pub fn new<R, C>(secp: &Secp256k1<C>, rng: &mut R) -> KeyPair
Generates a new random secret key.
§Examples
use secp256k1::{rand, Secp256k1, SecretKey, KeyPair};
let secp = Secp256k1::new();
let key_pair = KeyPair::new(&secp, &mut rand::thread_rng());
pub fn secret_bytes(&self) -> [u8; 32]
pub fn secret_bytes(&self) -> [u8; 32]
Returns the secret bytes for this key pair.
pub fn tweak_add_assign<C>(
&mut self,
secp: &Secp256k1<C>,
tweak: &Scalar,
) -> Result<(), Error>where
C: Verification,
👎Deprecated since 0.23.0: Use add_xonly_tweak instead
pub fn tweak_add_assign<C>(
&mut self,
secp: &Secp256k1<C>,
tweak: &Scalar,
) -> Result<(), Error>where
C: Verification,
Tweaks a keypair by adding the given tweak to the secret key and updating the public key accordingly.
pub fn add_xonly_tweak<C>(
self,
secp: &Secp256k1<C>,
tweak: &Scalar,
) -> Result<KeyPair, Error>where
C: Verification,
pub fn add_xonly_tweak<C>(
self,
secp: &Secp256k1<C>,
tweak: &Scalar,
) -> Result<KeyPair, Error>where
C: Verification,
Tweaks a keypair by first converting the public key to an xonly key and tweaking it.
§Errors
Returns an error if the resulting key would be invalid.
NB: Will not error if the tweaked public key has an odd value and can’t be used for BIP 340-342 purposes.
§Examples
use secp256k1::{Secp256k1, KeyPair, Scalar};
use secp256k1::rand::{RngCore, thread_rng};
let secp = Secp256k1::new();
let tweak = Scalar::random();
let mut key_pair = KeyPair::new(&secp, &mut thread_rng());
let tweaked = key_pair.add_xonly_tweak(&secp, &tweak).expect("Improbable to fail with a randomly generated tweak");
pub fn secret_key(&self) -> SecretKey
pub fn secret_key(&self) -> SecretKey
Returns the SecretKey
for this KeyPair
.
This is equivalent to using SecretKey::from_keypair
.
pub fn public_key(&self) -> PublicKey
pub fn public_key(&self) -> PublicKey
Returns the PublicKey
for this KeyPair
.
This is equivalent to using PublicKey::from_keypair
.
pub fn x_only_public_key(&self) -> (XOnlyPublicKey, Parity)
pub fn x_only_public_key(&self) -> (XOnlyPublicKey, Parity)
Returns the XOnlyPublicKey
(and it’s Parity
) for this KeyPair
.
This is equivalent to using XOnlyPublicKey::from_keypair
.
Trait Implementations§
§impl<'de> Deserialize<'de> for KeyPair
impl<'de> Deserialize<'de> for KeyPair
§fn deserialize<D>(d: D) -> Result<KeyPair, <D as Deserializer<'de>>::Error>where
D: Deserializer<'de>,
fn deserialize<D>(d: D) -> Result<KeyPair, <D as Deserializer<'de>>::Error>where
D: Deserializer<'de>,
§impl From<TweakedKeyPair> for KeyPair
impl From<TweakedKeyPair> for KeyPair
§fn from(pair: TweakedKeyPair) -> KeyPair
fn from(pair: TweakedKeyPair) -> KeyPair
§impl Ord for KeyPair
impl Ord for KeyPair
§impl PartialOrd for KeyPair
impl PartialOrd for KeyPair
§impl Serialize for KeyPair
impl Serialize for KeyPair
§fn serialize<S>(
&self,
s: S,
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>where
S: Serializer,
fn serialize<S>(
&self,
s: S,
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>where
S: Serializer,
§impl TapTweak for KeyPair
impl TapTweak for KeyPair
§fn tap_tweak<C>(
self,
secp: &Secp256k1<C>,
merkle_root: Option<TapBranchHash>,
) -> TweakedKeyPairwhere
C: Verification,
fn tap_tweak<C>(
self,
secp: &Secp256k1<C>,
merkle_root: Option<TapBranchHash>,
) -> TweakedKeyPairwhere
C: Verification,
Tweaks private and public keys within an untweaked KeyPair
with corresponding public key
value and optional script tree merkle root.
This is done by tweaking private key within the pair using the equation q = p + H(P|c), where
- q is the tweaked private key
- p is the internal private key
- H is the hash function
- c is the commitment data The public key is generated from a private key by multiplying with generator point, Q = qG.
§Returns
The tweaked key and its parity.
§type TweakedAux = TweakedKeyPair
type TweakedAux = TweakedKeyPair
§type TweakedKey = TweakedKeyPair
type TweakedKey = TweakedKeyPair
§fn dangerous_assume_tweaked(self) -> TweakedKeyPair
fn dangerous_assume_tweaked(self) -> TweakedKeyPair
impl Copy for KeyPair
impl Eq for KeyPair
impl StructuralPartialEq for KeyPair
Auto Trait Implementations§
impl Freeze for KeyPair
impl RefUnwindSafe for KeyPair
impl Send for KeyPair
impl Sync for KeyPair
impl Unpin for KeyPair
impl UnwindSafe for KeyPair
Blanket Implementations§
§impl<T> AnySync for T
impl<T> AnySync for T
§impl<'a, T, E> AsTaggedExplicit<'a, E> for Twhere
T: 'a,
impl<'a, T, E> AsTaggedExplicit<'a, E> for Twhere
T: 'a,
§impl<'a, T, E> AsTaggedImplicit<'a, E> for Twhere
T: 'a,
impl<'a, T, E> AsTaggedImplicit<'a, E> for Twhere
T: 'a,
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
§impl<T> Downcast for Twhere
T: AsAny + ?Sized,
impl<T> Downcast for Twhere
T: AsAny + ?Sized,
§fn downcast_ref<T>(&self) -> Option<&T>where
T: AsAny,
fn downcast_ref<T>(&self) -> Option<&T>where
T: AsAny,
Any
.§fn downcast_mut<T>(&mut self) -> Option<&mut T>where
T: AsAny,
fn downcast_mut<T>(&mut self) -> Option<&mut T>where
T: AsAny,
Any
.source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
source§impl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
source§fn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
T
in a tonic::Request