export type KeyPair = {
    publicKey: string;
    privateKey: string;
};
export declare const ALGORITHM: {
    name: string;
    hash: string;
};
export declare const encodeArrayBufferToBase64: (arrayBuffer: ArrayBuffer) => string;
export declare const decodeBase64ToArrayBuffer: (encoded: string) => ArrayBufferLike;
export declare const generateKeyPair: () => Promise<CryptoKeyPair>;
export declare const stringifyKeyPair: (keys: CryptoKeyPair) => Promise<KeyPair>;
export declare const decryptClientShard: (encryptedShard: string, privateKey: CryptoKey) => Promise<string>;
export declare const buildPrivateKey: (privateKey: string) => Promise<CryptoKey>;