import sjcl, { SjclCipherEncryptParams } from '@aikon/sjcl';
import { AesEncryptedDataString, EncryptionMode, AesEncryptionOptions } from './aesCryptoModels';
export * from './aesCryptoModels';
export declare const defaultIter = 1000000;
export declare const defaultMode = EncryptionMode.Gcm;
/** Verifies that the value is a valid, stringified JSON Encrypted object */
export declare function isAesEncryptedDataString(value: string): value is AesEncryptedDataString;
/** Ensures that the value comforms to a well-formed, stringified JSON Encrypted Object */
export declare function toAesEncryptedDataString(value: any): AesEncryptedDataString;
/** Derive the key used for encryption/decryption */
export declare function deriveKey(password: string, iter: number, salt?: string): sjcl.BitArray;
/** Decrypts the encrypted value with the derived key */
export declare function decryptWithKey(encrypted: AesEncryptedDataString | any, derivedKey: sjcl.BitArray): string;
/** Decrypts the encrypted value using a password, and salt (and optional iter value)
 * Uses AES algorithm and SHA256 hash function
 * The encrypted value is either a stringified JSON object or a JSON object */
export declare function decryptWithPassword(encrypted: AesEncryptedDataString | any, password: string, options?: AesEncryptionOptions): string;
/** Encrypts the private key with the derived key  */
export declare function encryptWithKey(unencrypted: string, cryptoParams: SjclCipherEncryptParams, derivedKey: sjcl.BitArray): sjcl.SjclCipherEncrypted;
/** Encrypts a string using a password and optional salt */
export declare function encryptWithPassword(unencrypted: string, password: string, options?: AesEncryptionOptions): AesEncryptedDataString;