Struct dcl_crypto::account::PersonalSignature

pub struct PersonalSignature(/* private fields */);

Implementations

impl PersonalSignature

pub fn try_recover_from_message( &self, message: &str ) -> Result<Address, RecoveryError>

Recover the signer of the signature from a giving message

  use dcl_crypto::account::PersonalSignature;
  let signer = "0xb92702b3eefb3c2049aeb845b0335b283e11e9c6";
  let message = "Decentraland Login\nEphemeral address: 0xA69ef8104E05325B01A15bA822Be43eF13a2f5d3\nExpiration: 2023-03-30T15:44:55.787Z";
  let payload = "0xd35f95b1e35e95e31a65d972348633c34411030ce971e2c49513a28a04706aa44906c6da35cf7bad51872b15dc971541952be62e63af8c8e9b300dfcddf4c60a1c";

  let sign = PersonalSignature::try_from(payload).unwrap();
  let address = sign.try_recover_from_message(message).unwrap();
  assert_eq!(address.to_string(), signer)

pub fn is_valid_signature(&self, message: &str, signer: &Address) -> bool

Methods from Deref<Target = [u8; 65]>

pub fn as_slice(&self) -> &[T]

Returns a slice containing the entire array. Equivalent to &s[..].

pub fn each_ref(&self) -> [&T; N]

🔬This is a nightly-only experimental API. (array_methods)

Borrows each element and returns an array of references with the same size as self.

Example

#![feature(array_methods)]

let floats = [3.1, 2.7, -1.0];
let float_refs: [&f64; 3] = floats.each_ref();
assert_eq!(float_refs, [&3.1, &2.7, &-1.0]);

This method is particularly useful if combined with other methods, like map. This way, you can avoid moving the original array if its elements are not Copy.

#![feature(array_methods)]

let strings = ["Ferris".to_string(), "♥".to_string(), "Rust".to_string()];
let is_ascii = strings.each_ref().map(|s| s.is_ascii());
assert_eq!(is_ascii, [true, false, true]);

// We can still access the original array: it has not been moved.
assert_eq!(strings.len(), 3);

pub fn split_array_ref<const M: usize>(&self) -> (&[T; M], &[T])

🔬This is a nightly-only experimental API. (split_array)

Divides one array reference into two at an index.

The first will contain all indices from [0, M) (excluding the index M itself) and the second will contain all indices from [M, N) (excluding the index N itself).

Panics

Panics if M > N.

Examples

#![feature(split_array)]

let v = [1, 2, 3, 4, 5, 6];

{
   let (left, right) = v.split_array_ref::<0>();
   assert_eq!(left, &[]);
   assert_eq!(right, &[1, 2, 3, 4, 5, 6]);
}

{
    let (left, right) = v.split_array_ref::<2>();
    assert_eq!(left, &[1, 2]);
    assert_eq!(right, &[3, 4, 5, 6]);
}

{
    let (left, right) = v.split_array_ref::<6>();
    assert_eq!(left, &[1, 2, 3, 4, 5, 6]);
    assert_eq!(right, &[]);
}

pub fn rsplit_array_ref<const M: usize>(&self) -> (&[T], &[T; M])

🔬This is a nightly-only experimental API. (split_array)

Divides one array reference into two at an index from the end.

The first will contain all indices from [0, N - M) (excluding the index N - M itself) and the second will contain all indices from [N - M, N) (excluding the index N itself).

Panics

Panics if M > N.

Examples

#![feature(split_array)]

let v = [1, 2, 3, 4, 5, 6];

{
   let (left, right) = v.rsplit_array_ref::<0>();
   assert_eq!(left, &[1, 2, 3, 4, 5, 6]);
   assert_eq!(right, &[]);
}

{
    let (left, right) = v.rsplit_array_ref::<2>();
    assert_eq!(left, &[1, 2, 3, 4]);
    assert_eq!(right, &[5, 6]);
}

{
    let (left, right) = v.rsplit_array_ref::<6>();
    assert_eq!(left, &[]);
    assert_eq!(right, &[1, 2, 3, 4, 5, 6]);
}

pub fn as_ascii(&self) -> Option<&[AsciiChar; N]>

🔬This is a nightly-only experimental API. (ascii_char)

Converts this array of bytes into a array of ASCII characters, or returns None if any of the characters is non-ASCII.

Examples

#![feature(ascii_char)]
#![feature(const_option)]

const HEX_DIGITS: [std::ascii::Char; 16] =
    *b"0123456789abcdef".as_ascii().unwrap();

assert_eq!(HEX_DIGITS[1].as_str(), "1");
assert_eq!(HEX_DIGITS[10].as_str(), "a");

pub unsafe fn as_ascii_unchecked(&self) -> &[AsciiChar; N]

🔬This is a nightly-only experimental API. (ascii_char)

Converts this array of bytes into a array of ASCII characters, without checking whether they’re valid.

Safety

Every byte in the array must be in 0..=127, or else this is UB.

Trait Implementations

impl Clone for PersonalSignature

fn clone(&self) -> PersonalSignature

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PersonalSignature

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PersonalSignature

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for PersonalSignature

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for PersonalSignature

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Format signature on its hexadecimal representation

  use dcl_crypto::account::PersonalSignature;
  assert_eq!(PersonalSignature::from([0; 65]).to_string(), "0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000");

impl From<[u8; 65]> for PersonalSignature

fn from(value: [u8; 65]) -> Self

Converts to this type from the input type.

impl From<PersonalSignature> for Signature

fn from(value: PersonalSignature) -> Self

Converts to this type from the input type.

impl From<PersonalSignature> for String

fn from(value: PersonalSignature) -> Self

Converts to this type from the input type.

impl From<PersonalSignature> for Vec<u8>

fn from(value: PersonalSignature) -> Self

Converts to this type from the input type.

impl From<RecoverableSignature> for PersonalSignature

fn from(value: RecoverableSignature) -> Self

Converts to this type from the input type.

impl From<Signature> for PersonalSignature

fn from(value: Signature) -> Self

Converts to this type from the input type.

impl PartialEq for PersonalSignature

fn eq(&self, other: &PersonalSignature) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for PersonalSignature

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<&str> for PersonalSignature

type Error = DecodeHexError

The type returned in the event of a conversion error.

fn try_from(value: &str) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<String> for PersonalSignature

type Error = DecodeHexError

The type returned in the event of a conversion error.

fn try_from(value: String) -> Result<Self, Self::Error>

Performs the conversion.

impl Deref for PersonalSignature

type Target = [u8; 65]

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl StructuralPartialEq for PersonalSignature