/**
 * Interface that representing the keychain settings.
 */
export interface PowerAuthKeychainConfigurationData {
    /**
     * ### iOS specific
     *
     * Access group name used by the `PowerAuth` keychain instances. This property
     * has no default value, so the application shoud provide a valid access group,
     * if such group should be used.
     */
    readonly accessGroupName?: string;
    /**
     * ### iOS specific
     *
     * Suite name used by the `UserDefaults` that check for Keychain data presence.
     *
     * If the value is not set, `UserDefaults.standardUserDefaults` are used. Otherwise,
     * user defaults with given suite name are created. In case a developer started using SDK
     * with no suite name specified, the developer is responsible for migrating data
     * to the new `UserDefaults` before using the SDK with the new suite name.
     */
    readonly userDefaultsSuiteName?: string;
    /**
     * ### Android specific
     *
     * Set minimal required keychain protection level that must be supported on the current device. Note that
     * if you enforce protection higher than `PowerAuthKeychainProtection.NONE`, then your application must target
     * at least Android 6.0.
     */
    readonly minimalRequiredKeychainProtection: PowerAuthKeychainProtection;
}
/**
 * The type that representing the keychain settings. Unline `KeychainConfigurationData`, this type
 * has all properties optional.
 */
export type PowerAuthKeychainConfigurationType = Partial<PowerAuthKeychainConfigurationData>;
/**
 * ### Android specific
 *
 * The `PowerAuthKeychainProtection` enum defines the level of keycain content protection.
 * The level of the protection depends on Android KeyStore implementation available on the device.
 * If the KeyStore supports hardware backed keys, like StrongBox, then also the higher level of
 * protection is reported.
 */
export declare enum PowerAuthKeychainProtection {
    /**
     * The content of the keychain is not encrypted and therefore not protected. This level of
     * the protection is typically reported on devices older than Android Marshmallow, or in
     * case that the device has faulty KeyStore implementation.
     */
    NONE = "NONE",
    /**
     * The content of the keychain is encrypted with key generated by Android KeyStore, but the key
     * is protected only on the operating system level. The security of the key material relies solely
     * on software measures, which means that a compromise of the Android OS (such as root exploit)
     * might up revealing this key.
     *
     * If this level of protection is enforced in `PowerAuthKeychainConfiguration`, then your application
     * must target Android 6.0 and higher.
     */
    SOFTWARE = "SOFTWARE",
    /**
     * The content of the keychain is encrypted with key generated by Android KeyStore and the key
     * is stored and managed by [Trusted Execution Environment](https://en.wikipedia.org/wiki/Trusted_execution_environment).
     */
    HARDWARE = "HARDWARE",
    /**
     * The content of the keychain is encrypted with key generated by Android KeyStore and the key
     * is stored inside of Secure Element (e.g. StrongBox). This is the highest level of Keychain
     * protection currently available.
     *
     * Be aware, that enforce STRONGBOX is not recommended due to its low reliabiliy and low performance
     * on the current Android devices.
     */
    STRONGBOX = "STRONGBOX"
}
/**
 * Class representing the keychain settings.
 */
export declare class PowerAuthKeychainConfiguration implements PowerAuthKeychainConfigurationType {
    accessGroupName?: string;
    userDefaultsSuiteName?: string;
    minimalRequiredKeychainProtection: PowerAuthKeychainProtection;
    constructor();
    /**
     * @returns `PowerAuthKeychainConfiguration` with default values.
     */
    static default(): PowerAuthKeychainConfigurationType;
}
/**
 * Function create a frozen object implementing `KeychainConfigurationData` with all required properties set.
 * @param input Optional application's configuration. If not provided, then the default values are set.
 * @returns
 */
export declare function buildKeychainConfiguration(input?: PowerAuthKeychainConfigurationType | undefined): PowerAuthKeychainConfigurationData;