Essays about: "ciphers"
Showing result 1 - 5 of 25 essays containing the word ciphers.
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1. Models, Keys, and Cryptanalysis: Evaluating historical statistical language models in cryptanalysis of homophonic substitution ciphers
University essay from Göteborgs universitet/Institutionen för filosofi, lingvistik och vetenskapsteoriAbstract : This thesis presents an empirical study connected to historical cryptography and especially within the framework of the research project DECRYPT. One of the research questions in the DECRYPT project relates to the use of language models for automatic cryptanalysis. READ MORE
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2. Evaluating and Fine-Tuning a Few-Shot Model for Transcription of Historical Ciphers
University essay from Uppsala universitet/Institutionen för lingvistik och filologiAbstract : Thousands of historical ciphers, encrypted manuscripts, are stored in archives across Europe. Historical cryptology is the research field concerned with studying these manuscripts - combining the interest of humanistic fields with methods of cryptography and computational linguistics. READ MORE
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3. Polybius Square Ciphers
University essay from Linnéuniversitetet/Institutionen för matematik (MA)Abstract : In this thesis, we will define Polybius Square Ciphers and explain howit used to encrypt plaintext. We will talk about Playfair, ADFGX andADFGVX. We will introduce how Shannon entropy works and its principalproperties. READ MORE
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4. The Influence of Language Models on Decryption of German Historical Ciphers
University essay from Uppsala universitet/Institutionen för lingvistik och filologiAbstract : This thesis assesses the influence of language models on decryption of historical German ciphers. Previous research on language identification and cleartext detection indicates that it is beneficial to use historical language models (LM) while dealing with historical ciphers as they can outperform models trained on present-day data. READ MORE
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5. Evaluating Transcription of Ciphers with Few-Shot Learning
University essay from Uppsala universitet/Institutionen för lingvistik och filologiAbstract : Ciphers are encrypted documents created to hide their content from those who were not the receivers of the message. Different types of symbols, such as zodiac signs, alchemical symbols, alphabet letters or digits are exploited to compose the encrypted text which needs to be decrypted to gain access to the content of the documents. READ MORE
