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101 lines
2.5 KiB
101 lines
2.5 KiB
//! Traits for the key containers
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use std::{
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borrow::Cow,
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error,
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convert::Infallible,
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};
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use openssl::{
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pkey::{
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HasPublic,
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HasPrivate,
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PKey,
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},
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rsa::{
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Rsa,
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},
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};
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/// A trait for containers that contain public keys
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pub trait PublicKey
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{
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/// The type of the key
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type KeyType: HasPublic;
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/// Error that can happen from the conversion
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type Error: error::Error;
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/// Get or create a `PKey` that contains the public key
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fn get_pkey_pub(&self) -> Result<Cow<'_, PKey<Self::KeyType>>, Self::Error>;
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/// Get or create an `Rsa` from this public key if possible
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fn get_rsa_pub(&self) -> Result<Option<Cow<'_, Rsa<Self::KeyType>>>, Self::Error>
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{
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Ok(self.get_pkey_pub()?.rsa().ok().map(|x| Cow::Owned(x)))
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}
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}
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/// A trait for containers that contain private and public keys
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pub trait PrivateKey: PublicKey
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where <Self as PublicKey>::KeyType: HasPrivate
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{
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/// Get or create a `PKey` that contains the private key
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#[inline] fn get_pkey_priv(&self) -> Result<Cow<'_, PKey<<Self as PublicKey>::KeyType>>, <Self as PublicKey>::Error>
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{
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self.get_pkey_pub()
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}
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/// Get or create an `Rsa` from this private key if possible
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#[inline] fn get_rsa_priv(&self) -> Result<Option<Cow<'_, Rsa<Self::KeyType>>>, Self::Error>
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{
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self.get_rsa_pub()
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}
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}
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impl<T> PublicKey for PKey<T>
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where T: HasPublic
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{
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type KeyType = T;
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type Error = Infallible;
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fn get_pkey_pub(&self) -> Result<Cow<'_, PKey<Self::KeyType>>, Self::Error>
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{
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Ok(Cow::Borrowed(self))
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}
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}
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impl<T> PrivateKey for PKey<T>
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where T: HasPrivate
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{
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fn get_pkey_priv(&self) -> Result<Cow<'_, PKey<<Self as PublicKey>::KeyType>>, <Self as PublicKey>::Error>
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{
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Ok(Cow::Borrowed(self))
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}
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}
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impl<T> PublicKey for Rsa<T>
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where T: HasPublic
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{
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type KeyType = T;
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type Error = openssl::error::ErrorStack;
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fn get_pkey_pub(&self) -> Result<Cow<'_, PKey<Self::KeyType>>, Self::Error>
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{
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Ok(Cow::Owned(PKey::from_rsa(self.clone())?))
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}
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#[inline] fn get_rsa_pub(&self) -> Result<Option<Cow<'_, Rsa<Self::KeyType>>>, Self::Error>
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{
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Ok(Some(Cow::Borrowed(self)))
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}
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}
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impl<T> PrivateKey for Rsa<T>
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where T: HasPrivate
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{
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fn get_pkey_priv(&self) -> Result<Cow<'_, PKey<<Self as PublicKey>::KeyType>>, <Self as PublicKey>::Error>
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{
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Ok(Cow::Owned(PKey::from_rsa(self.clone())?))
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}
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#[inline] fn get_rsa_priv(&self) -> Result<Option<Cow<'_, Rsa<Self::KeyType>>>, Self::Error>
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{
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Ok(Some(Cow::Borrowed(self)))
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}
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}
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