Struct openssl::sign::Verifier

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

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

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impl<'a> Verifier<'a>

A type which verifies cryptographic signatures of data.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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§

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impl Drop for Verifier<'_>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl Write for Verifier<'_>

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

Write a buffer into this writer, returning how many bytes were written. Read more
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fn flush(&mut self) -> Result<()>

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more
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fn write_vectored(&mut self, bufs: &[IoSlice<'_>]) -> Result<usize, Error>

Like write, except that it writes from a slice of buffers. Read more
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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. Read more
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fn write_all(&mut self, buf: &[u8]) -> Result<(), Error>

Attempts to write an entire buffer into this writer. Read more
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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. Read more
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fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result<(), Error>

Writes a formatted string into this writer, returning any error encountered. Read more
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fn by_ref(&mut self) -> &mut Self
where Self: Sized,

Creates a “by reference” adapter for this instance of Write. Read more
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impl Send for Verifier<'_>

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impl Sync for Verifier<'_>

Auto Trait Implementations§

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impl<'a> Freeze for Verifier<'a>

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impl<'a> RefUnwindSafe for Verifier<'a>

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impl<'a> Unpin for Verifier<'a>

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impl<'a> UnwindSafe for Verifier<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.