Struct Verifier 

pub struct Verifier<'a> { /* private fields */ }

A type which can be used to verify the integrity and authenticity of data given the signature.

Implementations

impl<'a> Verifier<'a>

A type which verifies cryptographic signatures of data.

pub fn new<T>( type_: MessageDigest, pkey: &'a PKeyRef<T>, ) -> Result<Verifier<'a>, ErrorStack>

where T: HasPublic,

Creates a new Verifier.

This cannot be used with Ed25519 or Ed448 keys. Please refer to Verifier::new_without_digest.

This corresponds to EVP_DigestVerifyInit.

pub fn new_without_digest<T>( pkey: &'a PKeyRef<T>, ) -> Result<Verifier<'a>, ErrorStack>

where T: HasPublic,

Creates a new Verifier without a digest.

This is the only way to create a Verifier for Ed25519 or Ed448 keys.

This corresponds to EVP_DigestVerifyInit.

pub fn rsa_padding(&self) -> Result<Padding, ErrorStack>

Returns the RSA padding mode in use.

This is only useful for RSA keys.

This corresponds to EVP_PKEY_CTX_get_rsa_padding.

pub fn set_rsa_padding(&mut self, padding: Padding) -> Result<(), ErrorStack>

Sets the RSA padding mode.

This is only useful for RSA keys.

This corresponds to EVP_PKEY_CTX_set_rsa_padding.

pub fn set_rsa_pss_saltlen( &mut self, len: RsaPssSaltlen, ) -> Result<(), ErrorStack>

Sets the RSA PSS salt length.

This is only useful for RSA keys.

This corresponds to EVP_PKEY_CTX_set_rsa_pss_saltlen.

pub fn set_rsa_mgf1_md(&mut self, md: MessageDigest) -> Result<(), ErrorStack>

Sets the RSA MGF1 algorithm.

This is only useful for RSA keys.

This corresponds to EVP_PKEY_CTX_set_rsa_mgf1_md.

pub fn update(&mut self, buf: &[u8]) -> Result<(), ErrorStack>

Feeds more data into the Verifier.

Please note that PureEdDSA (Ed25519 and Ed448 keys) do not support streaming. Use Verifier::verify_oneshot instead.

This corresponds to EVP_DigestUpdate.

pub fn verify(&self, signature: &[u8]) -> Result<bool, ErrorStack>

Determines if the data fed into the Verifier matches the provided signature.

This corresponds to EVP_DigestVerifyFinal.

pub fn verify_oneshot( &mut self, signature: &[u8], buf: &[u8], ) -> Result<bool, ErrorStack>

Determines if the data given in buf matches the provided signature.

This corresponds to EVP_DigestVerify.

Trait Implementations

impl Drop for Verifier<'_>

fn drop(&mut self)

Executes the destructor for this type.

impl Write for Verifier<'_>

fn write(&mut self, buf: &[u8]) -> Result<usize>

Writes a buffer into this writer, returning how many bytes were written.

fn flush(&mut self) -> Result<()>

Flushes this output stream, ensuring that all intermediately buffered contents reach their destination.

fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers.

fn is_write_vectored(&self) -> bool

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

Determines if this Writer has an efficient write_vectored implementation.

fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer.

fn write_all_vectored(&mut self, bufs: &mut [IoSlice<'_>]) -> Result<(), Error>

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

Attempts to write multiple buffers into this writer.

fn write_fmt(&mut self, args: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adapter for this instance of Write.

impl Send for Verifier<'_>

impl Sync for Verifier<'_>

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes