{'fraction_non_alphanumeric': 0.013723696248856358, 'fraction_numerical': 0.0, 'mean_word_length': 5.3604651162790695, '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}}
TWO LEVEL IMAGE BASED AUTHENTICATION SYSTEM

Authentication plays an important role in protecting resources against unauthorized use. But currently many user authentication systems suffer from drawbacks and security threats. Simple text based passwords are not secure enough and are a burden on the users to remember. The biometric authentication systems which are used for high security systems need additional hardware and software supports and hence are much expensive and difficult to maintain. For certain applications, research suggests that the use of images may be more effective. This is because humans are far better at recognizing images that they have previously seen than they are at remembering passwords. Hence in this paper, we propose user authentication by using image as passwords (PassImages). Though some systems use images for authentication, it still has some drawbacks which are prone to password attacks. On Analysis of the drawbacks of existing password systems, we have proposed solutions that overcome the vulnerabilities and improve the user authentication system.