Struct PrivateKey

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

Private Key for RSA.

Methods from Deref<Target = RsaPrivateKey>

pub fn to_public_key(&self) -> RsaPublicKey

Get the public key from the private key, cloning n and e.

Generally this is not needed since RsaPrivateKey implements the PublicKey trait, but it can occasionally be useful to discard the private information entirely.

pub fn crt_coefficient(&self) -> Option<BigUint>

Compute CRT coefficient: (1/q) mod p.

pub fn validate(&self) -> Result<(), Error>

Performs basic sanity checks on the key. Returns Ok(()) if everything is good, otherwise an appropriate error.

pub fn decrypt<P>( &self, padding: P, ciphertext: &[u8], ) -> Result<Vec<u8>, Error>

where P: PaddingScheme,

Decrypt the given message.

pub fn decrypt_blinded<R, P>( &self, rng: &mut R, padding: P, ciphertext: &[u8], ) -> Result<Vec<u8>, Error>

where R: CryptoRngCore, P: PaddingScheme,

Decrypt the given message.

Uses rng to blind the decryption process.

pub fn sign<S>(&self, padding: S, digest_in: &[u8]) -> Result<Vec<u8>, Error>

where S: SignatureScheme,

Sign the given digest.

pub fn sign_with_rng<R, S>( &self, rng: &mut R, padding: S, digest_in: &[u8], ) -> Result<Vec<u8>, Error>

where R: CryptoRngCore, S: SignatureScheme,

Sign the given digest using the provided rng, which is used in the following ways depending on the SignatureScheme:

• Pkcs1v15Sign padding: uses the RNG to mask the private key operation with random blinding, which helps mitigate sidechannel attacks.
• Pss always requires randomness. Use Pss::new for a standard RSASSA-PSS signature, or Pss::new_blinded for RSA-BSSA blind signatures.

Trait Implementations

impl Debug for PrivateKey

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

Formats the value using the given formatter.

impl Decryptor for PrivateKey

fn decrypt(&self, mpi: Self::EncryptionFields<'_>) -> Result<Vec<u8>>

RSA decryption using PKCS1v15 padding.

type EncryptionFields<'a> = &'a Mpi

impl Deref for PrivateKey

type Target = RsaPrivateKey

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Drop for PrivateKey

fn drop(&mut self)

Executes the destructor for this type.

impl From<RsaPrivateKey> for PrivateKey

fn from(key: RsaPrivateKey) -> Self

Converts to this type from the input type.

impl KeyParams for PrivateKey

type KeyParams = ()

fn key_params(&self) -> Self::KeyParams

impl Signer for PrivateKey

fn sign( &self, hash: HashAlgorithm, digest: &[u8], pub_params: &PublicParams, ) -> Result<Vec<Vec<u8>>>

Sign using RSA, with PKCS1v15 padding.