/// <reference types="node" />
import { SecurityCertificate } from './security/certificate';
import { SecurityKeyPrivate } from './security/key/private';
import { SecurityTimestamper } from './security/timestamper';
import { HasherSha1 } from './hasher/sha1';
import { HasherSha256 } from './hasher/sha256';
/**
 * Signature constructor.
 */
export declare class Signature extends Object {
    /**
     * Certificate.
     */
    certificate: SecurityCertificate | null;
    /**
     * Private key.
     */
    keyPrivate: SecurityKeyPrivate | null;
    /**
     * Timestamp URL.
     */
    timestampUrl: string | null;
    /**
     * Timestamp URI for SignatureValue.
     */
    timestampUriSignature: boolean;
    /**
     * Timestamp URI for #PackageSignatureValue.
     */
    timestampUriPackage: boolean;
    /**
     * Template strings for signatures.
     */
    protected _templates: Map<string, string>;
    /**
     * File references.
     */
    protected _packageManifest: string[];
    /**
     * Manifest digest.
     */
    protected _manifestDiest: Buffer | null;
    /**
     * Signed data.
     */
    protected _signedInfo: string | null;
    /**
     * Signature digest.
     */
    protected _signature: Buffer | null;
    /**
     * Key info.
     */
    protected _keyInfo: string | null;
    /**
     * Timestamp info.
     */
    protected _timestamp: Buffer | null;
    constructor();
    /**
     * Reset options to defaults.
     */
    defaults(): void;
    /**
     * Reset the internal state.
     */
    reset(): void;
    /**
     * Add file to signature.
     *
     * @param uri File URI.
     * @param data File data.
     */
    addFile(uri: string, data: Readonly<Buffer>): void;
    /**
     * Digest contents.
     */
    digest(): void;
    /**
     * Sign signature.
     */
    sign(): void;
    /**
     * Add timestamp to signature.
     */
    timestamp(): Promise<void>;
    /**
     * Encode signature.
     *
     * @returns Encoded signature.
     */
    encode(): Buffer;
    /**
     * Get list of timestamp data references for URI attribute.
     *
     * @returns List of references.
     */
    protected _getTimestampDataReferenceUris(): string[];
    /**
     * Create string from a template string.
     *
     * @param name Template name.
     * @param values Indexed values.
     * @returns Complete string.
     */
    protected _templated(name: string, values: Readonly<string[]>): string;
    /**
     * Create timestamper.
     *
     * @param url Server URL.
     * @returns Timestamper instance.
     */
    protected _createSecurityTimestamper(url: string): SecurityTimestamper;
    /**
     * Create SHA1 hasher instance.
     *
     * @returns Hasher instance.
     */
    protected _createHasherSha1(): HasherSha1;
    /**
     * Create SHA256 hasher instance.
     *
     * @returns Hasher instance.
     */
    protected _createHasherSha256(): HasherSha256;
    /**
     * Hash data using SHA1.
     *
     * @param data Data to be hashed.
     * @returns Hash digest.
     */
    protected _hashSha1(data: Readonly<Buffer>): Buffer;
    /**
     * Hash data using SHA256.
     *
     * @param data Data to be hashed.
     * @returns Hash digest.
     */
    protected _hashSha256(data: Readonly<Buffer>): Buffer;
    /**
     * Base64 encode with some defaults to match official pacakger.
     *
     * @param data Data to be encoded.
     * @param chunk Chunk size.
     * @param delimit Chunk delimiter.
     * @returns Encoded data.
     */
    protected _base64Encode(data: Readonly<Buffer>, chunk?: number, delimit?: string): string;
    /**
     * Create the timestamp XML.
     *
     * @returns Timestamp XML.
     */
    protected _createTimestampXml(): string;
    /**
     * Build the key info.
     *
     * @returns Key info.
     */
    protected _buildKeyInfo(): string;
    /**
     * Build the certchain data.
     *
     * @returns Certchain data.
     */
    protected _buildAndVerifyCertChain(): {
        certchain: Buffer[];
        crlValidationCerts: Buffer[];
        crls: Buffer[];
    };
}