/// <reference types="node" />
import * as ser from "./chain-serialize";
/** Convert `value` to binary form. `type` must be a built-in abi type. */
export declare function serialize(serialBuffer: ser.SerialBuffer, type: string, value: any): void;
/** Convert data in `buffer` to structured form. `type` must be a built-in abi type. */
export declare function deserialize(serialBuffer: ser.SerialBuffer, type: string): any;
export declare function createSharedCipher({ privateKey, publicKey, textEncoder, textDecoder }?: {
    privateKey: any;
    publicKey: any;
    textEncoder?: TextEncoder;
    textDecoder?: TextDecoder;
}): SharedCipher;
declare class SharedCipher {
    sharedSecret: Buffer;
    textEncoder?: TextEncoder;
    textDecoder?: TextDecoder;
    constructor({ sharedSecret, textEncoder, textDecoder }?: {
        sharedSecret: Buffer;
        textEncoder?: TextEncoder;
        textDecoder?: TextDecoder;
    });
    /**
     *  Encrypt the content of a FIO message.
     *
     *  @arg {string} fioContentType - `new_funds_content`, etc
     *  @arg {object} content
     *  @arg {Buffer} [IV = randomBytes(16)] - An unpredictable strong random value
     *  is required and supplied by default.  Unit tests may provide a static value
     *  to achieve predictable results.
     *  @return {string} cipher base64
     */
    encrypt(fioContentType: string, content: any, IV?: Buffer): string;
    /**
     *  Decrypt the content of a FIO message.
     *
     *  @arg {string} fioContentType - `new_funds_content`, etc
     *  @arg {object} content - cipher base64
     *  @return {object} decrypted FIO object
     */
    decrypt(fioContentType: string, content: string): any;
    /**
     *  @example hashA(PublicKey.toBuffer())
     *  @arg {string|Buffer} key buffer
     *  @return {string} hex, one-way hash unique to this SharedCipher and key
     */
    hashA(key: Buffer): string;
}
export {};