/**

* EdDSA-Java by str4d
*
* To the extent possible under law, the person who associated CC0 with
* EdDSA-Java has waived all copyright and related or neighboring rights
* to EdDSA-Java.
*
* You should have received a copy of the CC0 legalcode along with this
* work. If not, see <https://creativecommons.org/publicdomain/zero/1.0/>.
*
*/

package net.i2p.crypto.eddsa;

import java.security.AccessController; import java.security.PrivilegedAction; import java.security.Provider; import java.security.Security;

/**

* A security {@link Provider} that can be registered via {@link Security#addProvider(Provider)}
*
* @author str4d
*/

public class EdDSASecurityProvider extends Provider {

private static final long serialVersionUID = 1210027906682292307L;
public static final String PROVIDER_NAME = "EdDSA";

public EdDSASecurityProvider() {
    super(PROVIDER_NAME, 0.2 /* should match POM major.minor version */, "str4d " + PROVIDER_NAME + " security provider wrapper");

    AccessController.doPrivileged(new PrivilegedAction<Object>() {
        @Override
        public Object run() {
            setup();
            return null;
        }
    });
}

protected void setup() {
    // See https://docs.oracle.com/javase/8/docs/technotes/guides/security/crypto/HowToImplAProvider.html
    put("KeyFactory." + EdDSAKey.KEY_ALGORITHM, "net.i2p.crypto.eddsa.KeyFactory");
    put("KeyPairGenerator." + EdDSAKey.KEY_ALGORITHM, "net.i2p.crypto.eddsa.KeyPairGenerator");
    put("Signature." + EdDSAEngine.SIGNATURE_ALGORITHM, "net.i2p.crypto.eddsa.EdDSAEngine");

    // OID Mappings
    // See section "Mapping from OID to name".
    // The Key* -> OID mappings correspond to the default algorithm in KeyPairGenerator.
    //
    // From draft-ieft-curdle-pkix-04:
    //   id-Ed25519   OBJECT IDENTIFIER ::= { 1 3 101 112 }
    put("Alg.Alias.KeyFactory.1.3.101.112", EdDSAKey.KEY_ALGORITHM);
    put("Alg.Alias.KeyFactory.OID.1.3.101.112", EdDSAKey.KEY_ALGORITHM);
    put("Alg.Alias.KeyPairGenerator.1.3.101.112", EdDSAKey.KEY_ALGORITHM);
    put("Alg.Alias.KeyPairGenerator.OID.1.3.101.112", EdDSAKey.KEY_ALGORITHM);
    put("Alg.Alias.Signature.1.3.101.112", EdDSAEngine.SIGNATURE_ALGORITHM);
    put("Alg.Alias.Signature.OID.1.3.101.112", EdDSAEngine.SIGNATURE_ALGORITHM);
}

}