{'fraction_non_alphanumeric': 0.022388059701492536, 'fraction_numerical': 0.007462686567164179, 'mean_word_length': 5.271028037383178, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Analysis of security features in DLMS/COSEM: Vulnerabilities and countermeasures

The goal of this article is to identify weaknesses of the security layer in DLMS/COSEM according to Green Book Version 8. In the latest versions 7.3 and 8 of the Green Book, different security layers were added to protect sensitive and personal data. Security requirements of countries with a high level of data protection necessitated this step. Therefore, Green Book Version 8 intends to ensure confidentiality, availability and integrity of data using state-of-the-art methods in cryptography. This paper identifies and describes vulnerabilities and suggests effective countermeasures.