Struct openssl::sign::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.

OpenSSL documentation at 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.

OpenSSL documentation at 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.

OpenSSL documentation at EVP_DigestUpdate.

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

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

OpenSSL documentation at 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.

OpenSSL documentation at EVP_DigestVerify.

Trait Implementations

impl<'a> Drop for Verifier<'a>

fn drop(&mut self)

Executes the destructor for this type.

impl<'a> Write for Verifier<'a>

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

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

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

Flush 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, fmt: Arguments<'_>) -> Result<(), Error>

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

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

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

impl<'a> Send for Verifier<'a>

impl<'a> Sync for Verifier<'a>