import { Observable } from 'rxjs';
/**
 * Web Crypto interface class.
 * @dynamic
 */
export declare class Crypto {
    private static algRsaOaepSha1Key;
    private static algHmacSha256Key;
    /**
     * hash with SHA-256
     * (If it doesn't support web based crypto, encode as base64.)
     * @param data the original data to hash.
     * @return Observable<string> the hash generated.
     */
    static getSha256(data: string): Observable<string>;
    /**
     * encrypt with RSA/SHA-1
     *
     * @param jwk the JSON Web Key. Single string with JSON.stringify format.
     * @param data the original data to hash.
     * @return Observable<string> the hash generated.
     */
    static encryptRsaSha1(jwk: string, data: string): Observable<string>;
    /**
     * sign with HMAC/SHA-256
     *
     * @param key the key (base64 encoded).
     * @param data the original data to hash. (unicode - not utf8)
     * @return Observable<string> the hash generated.
     */
    static signHmac(key: string, data: string): Observable<string>;
    /**
     * Hash with SHA-256 for WebAPI.
     *
     * @param subtle the Web API subtle.
     * @param data the original data to hash.
     * @return Observable<string> the hash generated.
     */
    private static hash256WebAPI;
    /**
     * Hash with SHA-256 for IE/Older API.
     *
     * @param subtle the older API subtle.
     * @param data the original data to hash.
     * @return Observable<string> the hash generated.
     */
    private static hash256IE;
    /**
     * Encrypt with RSA/SHA-1 for WebAPI.
     *
     * @param subtle the Web API subtle.
     * @param jwkObject the JSON Web key object or ArrayBufferView on webkit.
     * @param data the original data to encrypt.
     * @return Observable<string> the encrypted base64 string.
     */
    private static encryptRsaWebAPI;
    /**
     * Encrypt with RSA/SHA-1 for IE/Older API.
     *
     * @param subtle the older API subtle.
     * @param jwk the JSON Web key format (Stringfiy).
     * @param data the original data to hash.
     * @return Observable<string> the encrypted base64 string.
     */
    private static encryptRsaIE;
    /**
     * Sign with HMAC for WebAPI.
     *
     * @param subtle the Web API subtle.
     * @param key the key.
     * @param data the original data to encrypt.
     * @return Observable<string> the encrypted base64 string.
     */
    private static signHmacWebAPI;
    /**
     * Sign with HMAC for IE/Older API.
     *
     * @param subtle the older API subtle.
     * @param jwk the key.
     * @param data the original data to hash.
     * @return Observable<string> the encrypted base64 string.
     */
    private static signHmacIE;
    /**
     * Create hex string from byte raw data.
     *
     * @param bytes the array buffer.
     * @return string the hex string.
     */
    private static toHexString;
    /**
     * Create Uint8Array from a string.
     *
     * @param data The string data.
     * @return Uint8Array The bytes array.
     */
    private static toUint8Array;
    /**
     * Create ArrayBuffer from a string with unicode.
     *
     * @param data The string data.
     * @return ArrayBuffer The bytes array.
     */
    private static toUtf8ArrayBuffer;
    /**
     * Encode utf8 string.
     *
     * @param data the unencoded string.
     */
    private static utf8Encode;
    /**
     * Create ArrayBuffer from a string with unicode.
     *
     * @param data The string data.
     * @return ArrayBuffer The bytes array.
     */
    private static toArrayBuffer;
    /**
     * Create ArrayBufferView from a string with unicode.
     *
     * @param data The string data.
     * @return ArrayBuffer The bytes array.
     */
    private static toArrayBufferView;
    /**
     * Create base64 from byte data.
     *
     * @param data The byte data.
     * @return string The base64 encoded data.
     */
    private static createBase64;
}