import { Key } from "./key";
/**
 * Private key objects (object class `CKO_PRIVATE_KEY`) hold private keys
 */
export declare class PrivateKey extends Key {
    /**
     * DER-encoding of the key subject name (default empty)
     * - May be modified after object is created with a `C_SetAttributeValue` call,
     * or in the process of copying object with a `C_CopyObject` call.
     * However, it is possible that a particular token may not permit modification of the attribute
     * during the course of a `C_CopyObject` call.
     */
    subject: Buffer;
    /**
     * `true` if key is sensitive
     * - May be modified after object is created with a `C_SetAttributeValue` call,
     * or in the process of copying object with a `C_CopyObject` call.
     * However, it is possible that a particular token may not permit modification of the attribute
     * during the course of a `C_CopyObject` call.
     * - Attribute cannot be changed once set to CK_TRUE. It becomes a read only attribute.
     * - Default value is token-specific, and may depend on the values of other attributes.
     */
    sensitive: boolean;
    /**
     * `true` if key supports decryption
     * - May be modified after object is created with a `C_SetAttributeValue` call,
     * or in the process of copying object with a `C_CopyObject` call.
     * However, it is possible that a particular token may not permit modification of the attribute
     * during the course of a `C_CopyObject` call.
     * - Default value is token-specific, and may depend on the values of other attributes.
     */
    decrypt: boolean;
    /**
     * `true` if key supports signatures where the signature is an appendix to the data
     * - May be modified after object is created with a `C_SetAttributeValue` call,
     * or in the process of copying object with a `C_CopyObject` call.
     * However, it is possible that a particular token may not permit modification of the attribute
     * during the course of a `C_CopyObject` call.
     * - Default value is token-specific, and may depend on the values of other attributes.
     */
    sign: boolean;
    /**
     * `true` if key supports signatures where the data can be recovered from the signature
     * - May be modified after object is created with a `C_SetAttributeValue` call,
     * or in the process of copying object with a `C_CopyObject` call.
     * However, it is possible that a particular token may not permit modification of the attribute
     * during the course of a `C_CopyObject` call.
     * - Default value is token-specific, and may depend on the values of other attributes.
     */
    signRecover: boolean;
    /**
     * `true` if key supports unwrapping (i.e., can be used to unwrap other keys)
     * - May be modified after object is created with a `C_SetAttributeValue` call,
     * or in the process of copying object with a `C_CopyObject` call.
     * However, it is possible that a particular token may not permit modification of the attribute
     * during the course of a `C_CopyObject` call.
     * - Default value is token-specific, and may depend on the values of other attributes.
     */
    unwrap: boolean;
    /**
     * `true` if key is extractable and can be wrapped
     * - May be modified after object is created with a `C_SetAttributeValue` call,
     * or in the process of copying object with a `C_CopyObject` call.
     * However, it is possible that a particular token may not permit modification of the attribute
     * during the course of a `C_CopyObject` call.
     * - Attribute cannot be changed once set to `false`. It becomes a read only attribute.
     * - Default value is token-specific, and may depend on the values of other attributes.
     */
    extractable: boolean;
    /**
     * `true` if key has always had the `CKA_SENSITIVE` attribute set to `true`
     * - Must not be specified when object is created with `C_CreateObject`.
     * - Must not be specified when object is generated with `C_GenerateKey` or `C_GenerateKeyPair`.
     * - Must not be specified when object is unwrapped with `C_UnwrapKey`.
     */
    alwaysSensitive: boolean;
    /**
     * `true` if key has never had the `CKA_EXTRACTABLE` attribute set to `true`
     * - Must not be specified when object is created with `C_CreateObject`.
     * - Must not be specified when object is generated with `C_GenerateKey` or `C_GenerateKeyPair`.
     * - Must not be specified when object is unwrapped with `C_UnwrapKey`.
     */
    neverExtractable: boolean;
    /**
     * `true` if the key can only be wrapped with a wrapping key
     * that has `CKA_TRUSTED` set to `true`. Default is `false`.
     * - Attribute cannot be changed once set to `true`. It becomes a read only attribute.
     */
    wrapTrusted: boolean;
    /**
     * For wrapping keys. The attribute template to apply to any keys unwrapped
     * using this wrapping key. Any user supplied template is applied after this template
     * as if the object has already been created.
     */
    get template(): void;
    set template(v: void);
    /**
     * if `true`, the user has to supply the PIN for each use (sign or decrypt) with the key.
     * Default is `false`
     */
    alwaysAuthenticate: boolean;
}