Struct PublicKey 

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

An Ed25519 public key used to verify a signature + message.

Implementations

impl PublicKey

pub fn from_bytes(bytes: &[u8; 32]) -> Self

Builds the public key from an array of bytes.

pub fn as_bytes(&self) -> &[u8; 32]

Returns the bytes of the public key.

pub fn from_der_subject_public_key_info(spki: &[u8]) -> Option<Self>

Parse a public key in SubjectPublicKeyInfo format.

pub fn to_der_subject_public_key_info(&self) -> Buffer

Serialize this key in SubjectPublicKeyInfo format.

pub fn verify( &self, msg: &[u8], signature: &Signature, ) -> Result<(), InvalidSignatureError>

Verifies that signature is a valid signature, by this key, of msg.

pub fn verify_prehashed( &self, context: &[u8], sha512_digest: &[u8; 64], signature: &Signature, ) -> Result<(), InvalidSignatureError>

Verifies that signature is a valid signature under the given context of sha512_digest using Ed25519ph.

Note that Ed25519ph (pre-hashed) and “pure” Ed25519 are different algorithms defined in RFC 8032. Calling verify with the digest of a message will not return the same output as verify_prehashed.

A context longer than 255 bytes, the maximum permitted by RFC 8032, is reported as an invalid signature.