pub struct Message(_);
Expand description
A (hashed) message input to an ECDSA signature.
Implementations
sourceimpl Message
impl Message
sourcepub fn as_mut_ptr(&mut self) -> *mut u8
pub fn as_mut_ptr(&mut self) -> *mut u8
Converts the object to a mutable raw pointer for FFI interfacing
sourceimpl Message
impl Message
sourcepub fn from_slice(data: &[u8]) -> Result<Message, Error>
pub fn from_slice(data: &[u8]) -> Result<Message, Error>
If you just want to sign an arbitrary message use Message::from_hashed_data
instead.
Converts a MESSAGE_SIZE
-byte slice to a message object. WARNING: the slice has to be a
cryptographically secure hash of the actual message that’s going to be signed. Otherwise
the result of signing isn’t a
secure signature.
sourcepub fn from_hashed_data<H: ThirtyTwoByteHash + Hash>(data: &[u8]) -> Self
Available on crate feature bitcoin_hashes
only.
pub fn from_hashed_data<H: ThirtyTwoByteHash + Hash>(data: &[u8]) -> Self
bitcoin_hashes
only.Constructs a Message
by hashing data
with hash algorithm H
. This requires the feature
bitcoin_hashes
to be enabled.
extern crate bitcoin_hashes;
use secp256k1::Message;
use bitcoin_hashes::sha256;
use bitcoin_hashes::Hash;
let m1 = Message::from_hashed_data::<sha256::Hash>("Hello world!".as_bytes());
// is equivalent to
let m2 = Message::from(sha256::Hash::hash("Hello world!".as_bytes()));
assert_eq!(m1, m2);
Trait Implementations
sourceimpl<T: ThirtyTwoByteHash> From<T> for Message
impl<T: ThirtyTwoByteHash> From<T> for Message
sourceimpl Ord for Message
impl Ord for Message
1.21.0 · sourceconst fn max(self, other: Self) -> Selfwhere
Self: Sized,
const fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
1.21.0 · sourceconst fn min(self, other: Self) -> Selfwhere
Self: Sized,
const fn min(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the minimum of two values. Read more
1.50.0 · sourceconst fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: Sized + PartialOrd<Self>,
const fn clamp(self, min: Self, max: Self) -> Selfwhere
Self: Sized + PartialOrd<Self>,
Restrict a value to a certain interval. Read more
sourceimpl PartialOrd<Message> for Message
impl PartialOrd<Message> for Message
sourcefn partial_cmp(&self, other: &Message) -> Option<Ordering>
fn partial_cmp(&self, other: &Message) -> Option<Ordering>
1.0.0 · sourceconst fn le(&self, other: &Rhs) -> bool
const fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self
and other
) and is used by the <=
operator. Read moreimpl Copy for Message
impl Eq for Message
Auto Trait Implementations
impl RefUnwindSafe for Message
impl Send for Message
impl Sync for Message
impl Unpin for Message
impl UnwindSafe for Message
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more