chore: remove dependency on psa-crypto

Fix #100

Author: hug-dev

Cargo.lock

@@ -16,7 +16,6 @@ rust-version = "1.66.0"
 bitflags = "1.3"
 libloading = "0.7.0"
 log = "0.4.14"
-psa-crypto = { version = "0.12.0", default-features = false, optional = true }
 cryptoki-sys = { path = "../cryptoki-sys", version = "0.2.0" }
 paste = "1.0.6"
 secrecy = "0.8.0"
@@ -28,6 +27,5 @@ serial_test = "0.5.1"
 testresult = "0.4.1"
 
 [features]
-psa-crypto-conversions = ["psa-crypto"]
 generate-bindings = ["cryptoki-sys/generate-bindings"]
 serde = ["secrecy/serde"]

cryptoki/Cargo.toml

@@ -1140,47 +1140,3 @@ fn make_mechanism<T>(mechanism: CK_MECHANISM_TYPE, param: &T) -> CK_MECHANISM {
             .expect("usize can not fit in CK_ULONG"),
     }
 }
-
-#[cfg(feature = "psa-crypto-conversions")]
-#[allow(deprecated)]
-impl TryFrom<psa_crypto::types::algorithm::Algorithm> for Mechanism<'_> {
-    type Error = Error;
-
-    fn try_from(alg: psa_crypto::types::algorithm::Algorithm) -> Result<Self, Self::Error> {
-        use psa_crypto::types::algorithm::{
-            Algorithm, AsymmetricEncryption, AsymmetricSignature, Hash, SignHash,
-        };
-
-        match alg {
-            Algorithm::Hash(Hash::Sha1) => Ok(Mechanism::Sha1),
-            Algorithm::Hash(Hash::Sha256) => Ok(Mechanism::Sha256),
-            Algorithm::Hash(Hash::Sha384) => Ok(Mechanism::Sha384),
-            Algorithm::Hash(Hash::Sha512) => Ok(Mechanism::Sha512),
-            Algorithm::AsymmetricSignature(AsymmetricSignature::RsaPkcs1v15Sign { .. })
-            | Algorithm::AsymmetricEncryption(AsymmetricEncryption::RsaPkcs1v15Crypt { .. }) => {
-                Ok(Mechanism::RsaPkcs)
-            }
-            Algorithm::AsymmetricSignature(AsymmetricSignature::RsaPss {
-                hash_alg: SignHash::Specific(hash_alg),
-            }) => Ok(Mechanism::RsaPkcsPss(rsa::PkcsPssParams {
-                hash_alg: Mechanism::try_from(Algorithm::from(hash_alg))?.mechanism_type(),
-                mgf: rsa::PkcsMgfType::from_psa_crypto_hash(hash_alg)?,
-                s_len: hash_alg.hash_length().try_into()?,
-            })),
-            Algorithm::AsymmetricSignature(AsymmetricSignature::Ecdsa { .. }) => {
-                Ok(Mechanism::Ecdsa)
-            }
-            Algorithm::AsymmetricEncryption(AsymmetricEncryption::RsaOaep { hash_alg }) => {
-                Ok(Mechanism::RsaPkcsOaep(PkcsOaepParams::new(
-                    Mechanism::try_from(Algorithm::from(hash_alg))?.mechanism_type(),
-                    rsa::PkcsMgfType::from_psa_crypto_hash(hash_alg)?,
-                    rsa::PkcsOaepSource::empty(),
-                )))
-            }
-            alg => {
-                error!("{:?} is not a supported algorithm", alg);
-                Err(Error::NotSupported)
-            }
-        }
-    }
-}

cryptoki/src/mechanism/mod.rs

@@ -185,24 +185,3 @@ impl<'a> From<PkcsOaepParams<'a>> for Mechanism<'a> {
         Mechanism::RsaPkcsOaep(pkcs_oaep_params)
     }
 }
-
-#[cfg(feature = "psa-crypto-conversions")]
-#[allow(deprecated)]
-impl PkcsMgfType {
-    /// Convert a PSA Crypto Hash algorithm to a MGF type
-    pub fn from_psa_crypto_hash(alg: psa_crypto::types::algorithm::Hash) -> Result<Self> {
-        use psa_crypto::types::algorithm::Hash;
-
-        match alg {
-            Hash::Sha1 => Ok(PkcsMgfType::MGF1_SHA1),
-            Hash::Sha224 => Ok(PkcsMgfType::MGF1_SHA224),
-            Hash::Sha256 => Ok(PkcsMgfType::MGF1_SHA256),
-            Hash::Sha384 => Ok(PkcsMgfType::MGF1_SHA384),
-            Hash::Sha512 => Ok(PkcsMgfType::MGF1_SHA512),
-            alg => {
-                error!("{:?} is not a supported MGF1 algorithm", alg);
-                Err(Error::NotSupported)
-            }
-        }
-    }
-}