declare namespace jsrsasign.KJUR.crypto {
    interface ECParameter {
        name: string;
        keylen: number;
        curve: ECCurveFp;
        G: ECPointFp;
        n: BigInteger;
        h: BigInteger;
        oid: string | undefined;
        info: string | undefined;
    }
    /**
     * static object for elliptic curve names and parameters
     * @description
     * This class provides parameters for named elliptic curves.
     * Currently it supoprts following curve names and aliases however
     * the name marked (*) are available for `KJUR.crypto.ECDSA` and
     * `KJUR.crypto.Signature` classes.
     *
     * - secp128r1
     * - secp160r1
     * - secp160k1
     * - secp192r1
     * - secp192k1
     * - secp224r1
     * - secp256r1, NIST P-256, P-256, prime256v1 (*)
     * - secp256k1 (*)
     * - secp384r1, NIST P-384, P-384 (*)
     * - secp521r1, NIST P-521, P-521
     *
     * You can register new curves by using the 'regist' method.
     */
    namespace ECParameterDB {
        /**
         * get curve inforamtion associative array for curve name or alias
         * @param nameOrAlias curve name or alias name
         * @return associative array of curve parameters
         * @example
         * var param = KJUR.crypto.ECParameterDB.getByName('prime256v1');
         * var keylen = param['keylen'];
         * var n = param['n'];
         */
        function getByName(nameOrAlias: string): ECParameter;

        /**
         * register new curve
         * @param name name of curve
         * @param keylen key length
         * @param pHex hexadecimal value of p
         * @param aHex hexadecimal value of a
         * @param bHex hexadecimal value of b
         * @param nHex hexadecimal value of n
         * @param hHex hexadecimal value of h
         * @param gxHex hexadecimal value of Gx
         * @param gyHex hexadecimal value of Gy
         * @param aliasList array of string for curve names aliases
         * @param oid Object Identifier for the curve
         * @param info information string for the curve
         */
        function regist(
            name: string,
            keylen: number,
            pHex: string,
            aHex: string,
            bHex: string,
            nHex: string,
            hHex: string,
            gxHex: string,
            gyHex: string,
            aliasList: string[],
            oid: string,
            info: string,
        ): void;
    }
}