The European Patent Office published EP4055774A1, a patent application by Huawei Technologies Co., Ltd. for a system and method establishing trusted relationships in distributed systems. The invention relates to cryptographic verification and data integrity mechanisms enabling secure communication between distributed nodes. IPC classifications include H04L 9/40 (network security), H04L 9/32 (digital signatures), and G06F 21/64 (data integrity). The designated states cover all EU member states plus EFTA and other European countries.

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