Struct tor_llcrypto::pk::rsa::PublicKey

pub struct PublicKey(_);

An RSA public key.

This implementation is a simple wrapper so that we can define new methods and traits on the type.

Implementations

impl PublicKey

pub fn exponent_is(&self, e: u32) -> bool

Return true iff the exponent for this key is the same number as ‘e’.

pub fn bits(&self) -> usize

Return the number of bits in the modulus for this key.

pub fn verify(&self, hashed: &[u8], sig: &[u8]) -> Result<(), Error>

Try to check a signature (as used in Tor.) The signed hash should be in ‘hashed’, and the alleged signature in ‘sig’.

Tor uses RSA-PKCSv1 signatures, with hash algorithm OIDs omitted.

pub fn from_der(der: &[u8]) -> Option<Self>

Decode an alleged DER byte string into a PublicKey.

Return None if the DER string does not have a valid PublicKey.

(This function expects an RsaPublicKey, as used by Tor. It does not expect or accept a PublicKeyInfo.)

pub fn to_der(&self) -> Vec<u8>

Encode this public key into the DER format as used by Tor.

The result is an RsaPublicKey, not a PublicKeyInfo.

pub fn to_rsa_identity(&self) -> RsaIdentity

Compute the RsaIdentity for this public key.

Trait Implementations

impl Clone for PublicKey

fn clone(&self) -> PublicKey

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PublicKey

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

Formats the value using the given formatter.