import { IEncryptionAlgorithm, EncryptionResult, IEncryptionAlgorithmConfig } from './IEncryptionAlgorithm';
import { TextEncoding } from '../utils/encodingUtils';
export interface IChaCha20Poly1305EncryptionConfig extends IEncryptionAlgorithmConfig {
    textEncoding?: TextEncoding;
}
export declare class ChaCha20Poly1305Encryption implements IEncryptionAlgorithm<IChaCha20Poly1305EncryptionConfig> {
    static TAG_LENGTH: number;
    static KEY_LENGTH: number;
    static ITERATIONS: number;
    static NONCE_LENGTH: number;
    encryptText(plaintext: string, config: IChaCha20Poly1305EncryptionConfig, encoding?: TextEncoding): Promise<EncryptionResult>;
    decryptText(encryptedData: ArrayBuffer, config: IChaCha20Poly1305EncryptionConfig, encoding?: TextEncoding): Promise<string>;
    encryptFile(fileBuffer: ArrayBuffer, config: IChaCha20Poly1305EncryptionConfig): Promise<EncryptionResult>;
    decryptFile(encryptedBuffer: ArrayBuffer, config: IChaCha20Poly1305EncryptionConfig): Promise<ArrayBuffer>;
    private deriveKey;
    validateNonce(nonce: Buffer): void;
}
export declare class ChaCha20Poly1305EncryptionConfig implements IChaCha20Poly1305EncryptionConfig {
    password: string;
    textEncoding?: TextEncoding;
    constructor(password: string, textEncoding?: TextEncoding);
}