电能计量.支付系统.第41部分:标准传输规范（STS）.单向令牌载波系统的应用层协议

[中文适用范围]： IEC 62055 的这一部分规定了 STS 的应用层协议，用于将信用单位和其他管理信息从销售点 (POS) 系统传输到单向令牌载体系统中符合 STS 的支付仪表。它主要适用于使用基于能源的代币@的无关税电表的应用，但也可能适用于基于货币的代币系统以及电力以外的服务。它指定： ? POS 到令牌载体接口，采用 OSI 模型作为参考，采用应用层协议和物理层协议构建； ？应用层协议的令牌，用于将各种消息从 POS 传输到支付仪表；应用层协议中的安全功能和流程，例如标准传输算法和数据加密算法@，包括相关密钥的生成和分发； ？支付仪表应用层协议中的安全功能和流程，如解密算法@令牌认证@验证和取消； ？针对收到的令牌对仪表申请流程的具体要求； ？处理计量表应用过程中的支付计量表功能的方案和相关配套规范； ？符合 STS 的密钥管理系统的一般要求； ？密钥管理系统指南； ？ STS系统中使用的实体和标识符； ？与修订后的基准日期集相关的 TID 轮转关键变更管理实践守则； ？ STS 协会的实践守则和维护支持服务。它旨在供必须接受符合 STS 的令牌的支付仪表制造商以及必须生产符合 STS 的令牌的 POS 系统制造商使用，并与 IEC 62055-5x 系列一起阅读。符合 STS 的产品只需遵守本文件的选择性部分@，这是购买合同的主题（另请参阅条款 C.12）。注：虽然是为电力支付系统@开发的，但该文件还规定了用于其他公用事业服务@（例如水和天然气）的代币。 [外文原描述]： IEC 62055-41:2018 specifies the application layer protocol of the standard transfer specification (STS) used for transferring units of credit and other management information from a point of sale (POS) system to an STS-compliant payment meter in a one-way token carrier system. It is primarily intended for application with electricity payment meters without a tariff employing energy-based tokens, but may also have application with currency-based token systems and for services other than electricity. It is intended for use by manufacturers of payment meters that have to accept tokens that comply with the STS and also by manufacturers of POS systems that have to produce STS-compliant tokens and is to be read in conjunction with IEC 62055-5x series. This third edition cancels and replaces the second edition of IEC 62055-41, issued in 2014. It constitutes a technical revision. The main technical changes with regard to the previous edition are as follows: - currency transfer tokens for electricity, water, gas and time metering; - finer resolution for gas and time credit transfer; - common code PAN for 2 and 4 digit manufacturer codes; - reserved MfrCode values for certification and testing purposes; - provision for DLMS/COSEM as a virtual token carrier type; - addition of DKGA04, an advanced key derivation function from 160-bit VendingKey; - withdrawal of DES for EA09 and TDES for DKGA03 cryptographic algorithms, but DES for DKGA02 remains in use; - addition of MISTY1 cryptographic algorithm using a 128-bit DecoderKey with supporting key change tokens; - transfer of SGC values to the meter via key change tokens; - revision of the test/display token requirements; - revision of the KMS to reflect current best practice; - revision of the TID roll over management guidelines; - definition of BaseDate is referenced to Coordinated Universal Time; - some clarifications and additional examples have been added.