export declare enum KeyFormat {
    Raw = "raw",
    Hex = "hex",
    PEM = "pem"
}
export declare class KeyConverter {
    private keyEncoder;
    readonly supportedKeyFormats: string[];
    constructor();
    /**
     * Convert public key from one format to another format
     * @param key
     * @param fromFormat
     * @param toFormat
     */
    publicKeyAs(key: string | Uint8Array, fromFormat: KeyFormat, toFormat: KeyFormat): string | Uint8Array;
    /**
     * Convert private key from one format to another format
     * @param key
     * @param fromFormat
     * @param toFormat
     */
    privateKeyAs(key: string | Buffer, fromFormat: KeyFormat, toFormat: KeyFormat): string | Buffer;
    /**
     * This method will validate if the input key format match to one of the enum value.
     * @param keyFormat
     */
    private validateKeyFormatValue;
}