Deprecate CKF_EC_NAMEDCURVE

Co-authored-by: mematthias <[email protected]>
Signed-off-by: Hugues de Valon <[email protected]>

Author: hug-dev

cryptoki/src/mechanism/mechanism_info.rs

@@ -26,7 +26,6 @@ bitflags! {
         const EC_F_P = CKF_EC_F_P;
         const EC_F_2M = CKF_EC_F_2M;
         const EC_ECPARAMETERS = CKF_EC_ECPARAMETERS;
-        const EC_NAMEDCURVE = CKF_EC_NAMEDCURVE;
         const EC_OID = CKF_EC_OID;
         const EC_UNCOMPRESS = CKF_EC_UNCOMPRESS;
         const EC_COMPRESS = CKF_EC_COMPRESS;
@@ -38,6 +37,12 @@ bitflags! {
     }
 }
 
+impl MechanismInfoFlags {
+    /// `CKF_EC_NAMEDCURVE` is deprecated with `PKCS#11 3.00`. It is replaced by [`CKF_EC_OID`](MechanismInfoFlags::EC_OID).
+    #[deprecated = "use `EC_OID` instead"]
+    pub const EC_NAMEDCURVE: Self = Self::from_bits_retain(CKF_EC_NAMEDCURVE);
+}
+
 /// Information about a particular mechanism
 #[derive(Debug, Clone, Copy)]
 pub struct MechanismInfo {
@@ -202,6 +207,7 @@ impl MechanismInfo {
     /// [`ec_from_named_curve`](Self::ec_from_named_curve) must be `true`
     #[deprecated = "use `ec_from_oid` instead"]
     pub fn ec_from_named_curve(&self) -> bool {
+        #[allow(deprecated)]
         self.flags.contains(MechanismInfoFlags::EC_NAMEDCURVE)
     }
 
@@ -303,6 +309,15 @@ impl From<CK_MECHANISM_INFO> for MechanismInfo {
 #[cfg(test)]
 mod test {
     use super::{MechanismInfo, MechanismInfoFlags};
+    use cryptoki_sys::CK_FLAGS;
+
+    #[test]
+    fn deprecated_flags() {
+        let ec_oid_bits: CK_FLAGS = MechanismInfoFlags::EC_OID.bits();
+        #[allow(deprecated)]
+        let ec_namedcurve_bits: CK_FLAGS = MechanismInfoFlags::EC_NAMEDCURVE.bits();
+        assert_eq!(ec_oid_bits, ec_namedcurve_bits);
+    }
 
     #[test]
     fn debug_flags_all() {