import { KeyType } from '../models';
export declare const hex: {
    encode: (data: string) => string;
};
export declare const sha256: (data: string) => string;
/**
 *
 * @param key compressed or uncompressed public key or private key in hexadecimal format
 * @param keyType SECG standard curve name
 * @returns
 */
export declare const toPem: (key: string, keyType: KeyType) => string;
export declare const privToPem: (key: string, alg: KeyType) => string;