| use super::{decrypt, EncryptingKey}; |
| use crate::{ |
| dummy_rng::DummyRng, |
| traits::{Decryptor, EncryptingKeypair, RandomizedDecryptor}, |
| Result, RsaPrivateKey, |
| }; |
| use alloc::vec::Vec; |
| use rand_core::CryptoRngCore; |
| use zeroize::ZeroizeOnDrop; |
| |
| /// Decryption key for PKCS#1 v1.5 decryption as described in [RFC8017 § 7.2]. |
| /// |
| /// [RFC8017 § 7.2]: https://datatracker.ietf.org/doc/html/rfc8017#section-7.2 |
| #[derive(Debug, Clone)] |
| pub struct DecryptingKey { |
| inner: RsaPrivateKey, |
| } |
| |
| impl DecryptingKey { |
| /// Create a new verifying key from an RSA public key. |
| pub fn new(key: RsaPrivateKey) -> Self { |
| Self { inner: key } |
| } |
| } |
| |
| impl Decryptor for DecryptingKey { |
| fn decrypt(&self, ciphertext: &[u8]) -> Result<Vec<u8>> { |
| decrypt::<DummyRng>(None, &self.inner, ciphertext) |
| } |
| } |
| |
| impl RandomizedDecryptor for DecryptingKey { |
| fn decrypt_with_rng<R: CryptoRngCore + ?Sized>( |
| &self, |
| rng: &mut R, |
| ciphertext: &[u8], |
| ) -> Result<Vec<u8>> { |
| decrypt(Some(rng), &self.inner, ciphertext) |
| } |
| } |
| |
| impl EncryptingKeypair for DecryptingKey { |
| type EncryptingKey = EncryptingKey; |
| fn encrypting_key(&self) -> EncryptingKey { |
| EncryptingKey { |
| inner: self.inner.clone().into(), |
| } |
| } |
| } |
| |
| impl ZeroizeOnDrop for DecryptingKey {} |