Personal communication using technical means is protected by telecommunications secrecy. Any interference with this fundamental right requires a legal basis, which has existed for many years for traditional communication services in the form of telecommunications surveillance (TKÜ, § 100a StPO) and appears to be widely accepted by society. The basis for the implementation of TKÜ is the obligation of telecommunications providers to provide interception interfaces. However, the technical implementation of telecommunications has changed significantly as a result of the Internet. Messenger services and Voice over IP telephony are increasingly competing with traditional telephone services. The use of strong end-to-end encryption made possible by this technology is increasingly posing problems for law enforcement agencies, as only cryptographically encrypted content is accessible via the interception interfaces provided to date. Against the backdrop of current discussions on socalled ``chat control'' and its limited social acceptance, this article addresses the question of whether and, if so, how the cooperation obligations of the technical actors involved can be sensibly regulated in the case of encrypted communication.

翻译：利用技术手段进行的个人通信受电信秘密保护。对这一基本权利的干预需有法律依据，传统通信服务多年来已存在电信监控（TKÜ，德国《刑事诉讼法》第100a条）的法律基础，且似乎被社会广泛接受。实施TKÜ的基础是电信提供商提供监听接口的义务。然而，互联网的发展已显著改变电信的技术实现方式。即时通讯服务和IP语音电话正日益与传统电话服务形成竞争。该技术所实现的强端到端加密的使用，给执法机构带来愈发严峻的挑战，因为目前提供的监听接口仅能获取经密码学加密的内容。在当前围绕所谓“聊天监控”及其有限社会接受度的讨论背景下，本文探讨了在加密通信场景下，是否以及如何合理规制相关技术主体的协作义务。