Struct exonum::crypto::Signature
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pub struct Signature(_);
Ed25519 digital signature.
Examples
use exonum::crypto; let (public_key, secret_key) = crypto::gen_keypair(); let data = [1, 2, 3]; let signature = crypto::sign(&data, &secret_key); assert!(crypto::verify(&signature, &data, &public_key));
Methods
impl Signature
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impl Signature
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pub fn new(ba: [u8; 64]) -> Self
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Creates a new instance from bytes array.
pub fn from_slice(bs: &[u8]) -> Option<Self>
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Creates a new instance from bytes slice.
pub fn to_hex(&self) -> String
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Returns the hex representation of the binary data. Lower case letters are used (e.g. f9b4ca).
Trait Implementations
impl<'a> ExonumJson for &'a Signature
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fn deserialize_field<B: WriteBufferWrapper>(
value: &Value,
buffer: &mut B,
from: Offset,
to: Offset
) -> Result<(), Box<Error>>
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value: &Value,
buffer: &mut B,
from: Offset,
to: Offset
) -> Result<(), Box<Error>>
write deserialized field in buffer on place.
fn serialize_field(&self) -> Result<Value, Box<Error + Send + Sync>>
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serialize field as json::Value
impl ExonumJsonDeserialize for Signature
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impl<'a> Field<'a> for &'a Signature
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fn field_size() -> Offset
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Field's header size
unsafe fn read(buffer: &'a [u8], from: Offset, _: Offset) -> &'a Signature
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Read Field from buffer, with given position, beware of memory unsafety, you should check
Field
before read
. Read more
fn write(&self, buffer: &mut Vec<u8>, from: Offset, to: Offset)
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Write Field to buffer, in given position write
doesn't lead to memory unsafety. Read more
fn check(
_: &'a [u8],
from: CheckedOffset,
to: CheckedOffset,
latest_segment: CheckedOffset
) -> Result
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_: &'a [u8],
from: CheckedOffset,
to: CheckedOffset,
latest_segment: CheckedOffset
) -> Result
Checks if data in the buffer could be deserialized. Returns an index of latest data seen. Read more
impl PartialEq for Signature
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fn eq(&self, __arg_0: &Signature) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &Signature) -> bool
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This method tests for !=
.
impl Eq for Signature
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impl Clone for Signature
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fn clone(&self) -> Signature
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
Performs copy-assignment from source
. Read more
impl Copy for Signature
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impl PartialOrd for Signature
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fn partial_cmp(&self, __arg_0: &Signature) -> Option<Ordering>
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This method returns an ordering between self
and other
values if one exists. Read more
fn lt(&self, __arg_0: &Signature) -> bool
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This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, __arg_0: &Signature) -> bool
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This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, __arg_0: &Signature) -> bool
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This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, __arg_0: &Signature) -> bool
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This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl Ord for Signature
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fn cmp(&self, __arg_0: &Signature) -> Ordering
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This method returns an Ordering
between self
and other
. Read more
fn max(self, other: Self) -> Self
1.21.0[src]
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self
1.21.0[src]
Compares and returns the minimum of two values. Read more
impl Hash for Signature
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fn hash<__H: Hasher>(&self, __arg_0: &mut __H)
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Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl AsRef<[u8]> for Signature
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impl FromStr for Signature
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type Err = FromHexError
The associated error which can be returned from parsing.
fn from_str(s: &str) -> Result<Self, Self::Err>
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Parses a string s
to return a value of this type. Read more
impl ToString for Signature
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impl Debug for Signature
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fn fmt(&self, f: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more
impl FromHex for Signature
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type Error = FromHexError
fn from_hex<T: AsRef<[u8]>>(v: T) -> Result<Self, Self::Error>
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Creates an instance of type Self
from the given hex string, or fails with a custom error type. Read more
impl Serialize for Signature
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fn serialize<S>(&self, ser: S) -> Result<S::Ok, S::Error> where
S: Serializer,
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S: Serializer,
Serialize this value into the given Serde serializer. Read more
impl<'de> Deserialize<'de> for Signature
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
D: Deserializer<'de>,
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D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
impl Index<Range<usize>> for Signature
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type Output = [u8]
The returned type after indexing.
fn index(&self, _index: Range<usize>) -> &[u8]
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Performs the indexing (container[index]
) operation.
impl Index<RangeTo<usize>> for Signature
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type Output = [u8]
The returned type after indexing.
fn index(&self, _index: RangeTo<usize>) -> &[u8]
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Performs the indexing (container[index]
) operation.
impl Index<RangeFrom<usize>> for Signature
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type Output = [u8]
The returned type after indexing.
fn index(&self, _index: RangeFrom<usize>) -> &[u8]
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Performs the indexing (container[index]
) operation.