export declare function generateKeypair(): {
    publicKey: Uint8Array;
    secretKey: Uint8Array;
};
export type EncryptKeyBoxParams = {
    message: Uint8Array;
    nonce: Uint8Array;
    publicKey: Uint8Array;
    secretKey: Uint8Array;
};
export type DecryptKeyBoxParams = {
    ciphertext: Uint8Array;
    nonce: Uint8Array;
    publicKey: Uint8Array;
    secretKey: Uint8Array;
};
export declare function encryptKeyBox({ message, publicKey, secretKey, nonce }: EncryptKeyBoxParams): Uint8Array;
export declare function decryptKeyBox({ ciphertext, nonce, publicKey, secretKey }: DecryptKeyBoxParams): Uint8Array;
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