Class AbstractCurve

impl/src/main/java/io/jsonwebtoken/impl/security/AbstractCurve.java:25–78

import java.security.Key;

abstract class AbstractCurve implements Curve {

    private final String ID;

    private final String JCA_NAME;

    AbstractCurve(String id, String jcaName) {
        this.ID = Assert.notNull(Strings.clean(id), "Curve ID cannot be null or empty.");
        this.JCA_NAME = Assert.notNull(Strings.clean(jcaName), "Curve jcaName cannot be null or empty.");
    }

    @Override
    public String getId() {
        return this.ID;
    }

    public String getJcaName() {
        return this.JCA_NAME;
    }

    @Override
    public int hashCode() {
        return ID.hashCode();
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof Curve) {
            Curve curve = (Curve) obj;
            return ID.equals(curve.getId());
        }
        return false;
    }

    @Override
    public String toString() {
        return ID;
    }

    public KeyPairBuilder keyPair() {
        return new DefaultKeyPairBuilder(this.JCA_NAME);
    }

    /**
     * Returns {@code true} if the specified key is known to represent a point on the curve, {@code false} otherwise.
     *
     * @param key the key to test
     * @return {@code true} if the specified key is known to represent a point on the curve, {@code false} otherwise.
     */
    abstract boolean contains(Key key);
}