Struct Digest 

pub struct Digest { /* private fields */ }

A digest to validate a blob.

It contains the algorithm (like SHA256) and its expected value as a hexadecimal string.

Examples

const DIGEST: &str = "123456789012345678901234567890123456789012345678901234567890ABCD";

let digest = Digest::try_from(format!("sha256:{}", DIGEST)).unwrap();
assert_eq!(digest.algorithm(), DigestAlgorithm::SHA256);
assert_eq!(digest.hash_value(), DIGEST);

Implementations

impl Digest

pub fn source(&self) -> &str

Original string to build this instance (algorithm:hash_value).

pub fn hash_value(&self) -> &str

pub fn algorithm(&self) -> DigestAlgorithm

pub fn wrap_reader<R: Read>(&self, reader: R) -> impl Read

Return a Read instance to compute its digest.

When all data from reader is consumed, it verifies that the computed digest is the expected one. If not, it returns an InvalidData error.

Trait Implementations

impl Clone for Digest

fn clone(&self) -> Digest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Digest

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Digest

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Digest

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl TryFrom<String> for Digest

type Error = DigestError

The type returned in the event of a conversion error.

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

Performs the conversion.

impl StructuralPartialEq for Digest