ISO 18185-4:2007规定了电子印章的数据保护、设备认证和一致性能力要求，用于与印章及其相关读卡器进行通信。这些功能包括可访问性、机密性、数据完整性、身份验证和存储数据的不可否认性。

ISO 18185-4:2007 specifies requirements for the data protection, device authentication and conformance capabilities of electronic seals for communication to and from a seal and its associated reader. These capabilities include the accessibility, confidentiality, data integrity, authentication and non-repudiation of stored data.