import { BaseWallet } from "ethers";
import { ctString, ctUint, itString, itUint } from './types';
export declare function encrypt(key: Uint8Array, plaintext: Uint8Array): {
    ciphertext: Uint8Array;
    r: Uint8Array;
};
export declare function decrypt(key: Uint8Array, r: Uint8Array, ciphertext: Uint8Array): Uint8Array;
export declare function generateRSAKeyPair(): {
    publicKey: Uint8Array;
    privateKey: Uint8Array;
};
export declare function decryptRSA(privateKey: Uint8Array, ciphertext: string): string;
export declare function recoverUserKey(privateKey: Uint8Array, encryptedKeyShare0: string, encryptedKeyShare1: string): string;
export declare function sign(message: string, privateKey: string): Uint8Array;
export declare function signInputText(sender: {
    wallet: BaseWallet;
    userKey: string;
}, contractAddress: string, functionSelector: string, ct: bigint): Uint8Array;
export declare function buildInputText(plaintext: bigint, sender: {
    wallet: BaseWallet;
    userKey: string;
}, contractAddress: string, functionSelector: string): itUint;
export declare function buildStringInputText(plaintext: string, sender: {
    wallet: BaseWallet;
    userKey: string;
}, contractAddress: string, functionSelector: string): itString;
export declare function decryptUint(ciphertext: ctUint, userKey: string): bigint;
export declare function decryptString(ciphertext: ctString, userKey: string): string;
export declare function generateRandomAesKeySizeNumber(): string;
export declare function encodeString(str: string): Uint8Array;
export declare function encodeKey(userKey: string): Uint8Array;
export declare function encodeUint(plaintext: bigint): Uint8Array;
export declare function decodeUint(plaintextBytes: Uint8Array): bigint;
export declare function encryptNumber(r: string | Uint8Array, key: Uint8Array): Uint8Array;