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Browsing Unisa ETD by Subject "Cryptography"

Browsing Unisa ETD by Subject "Cryptography"

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  • Cyber crime: a comparative law analysis 
    Maat, Sandra Mariana (2009-08-25)
    The Electronic Communications and Transactions Act, 25 of 2002, eradicated various lacunae that previously existed in respect of cyber crimes. Cyber crimes such as inter alia hacking, rogue code, unauthorised modification ...
  • Implementing natural language processing techniques for the detection of stegospam files generated using a probabilistic context-free grammar 
    Chohan, Farad Hoosen (2021-01)
    The ubiquitous and innocuous nature of spam email makes it an ideal carrier for covert-based communications, particularly linguistic steganography, which seeks to conceal sensitive information within a body of text through ...
  • Internet-based electronic payment systems 
    Kortekaas, Birgit Friederike (2009-08-25)
    As today, the traditional payment systems of cash, cheques and credit cards are being supplemented by electronic cheques, electronic credit card-based systems, and token-based systems, online security is of utmost ...
  • Preventing cryptographic attacks used on the Internet of Things 
    Muthavhine, Khumbelo Difference (2022-05)
    Cryptographic attacks on Internet of Things (IoT) devices are not highly con sidered by the users of IoT. Most cryptographic algorithms commonly used on IoT devices are vulnerable to cryptographic attacks. Cryptography ...
  • Universal homophonic coding 
    Stevens, Charles Cater (1996-11)
    Redundancy in plaintext is a fertile source of attack in any encryption system. Compression before encryption reduces the redundancy in the plaintext, but this does not make a cipher more secure. The cipher text is still ...

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