export default class KeyPair {
    publicKey: Uint8Array;
    privateKey: Uint8Array;
    constructor(publicKey: Uint8Array, privateKey: Uint8Array);
    inspect(): string;
    static fromPrivateKey(priv: string): KeyPair;
    static fromPlain(j: any): KeyPair;
    static fromSerialized(s: string): KeyPair;
    static fromRandom(): KeyPair;
    static fromSecretPhrase(phrase: string): KeyPair;
    plain(): {
        public: string;
        private: string;
    };
    serialize(): string;
    sign(s: string): string;
    static verifySignature(publicKey: string, message: string, signature: string): boolean;
    static isValidPublicKey(key: string): boolean;
    static isValidHexString(key: string): boolean;
    static decodePublicKey(input: string): Uint8Array;
    static encodePublicKey(key: Uint8Array): string;
    getPublicKey(): string;
    getPrivateKey(): string;
}