Sökning: "image cryptography"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden image cryptography.

  1. 1. Evaluating and Fine-Tuning a Few-Shot Model for Transcription of Historical Ciphers

    Master-uppsats, Uppsala universitet/Institutionen för lingvistik och filologi

    Författare :Ingrid Eliasson; [2023]
    Nyckelord :historical ciphers; few-shot learning; automatic transcription;

    Sammanfattning : 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. LÄS MER

  3. 2. Multiparty adversarial neural cryptography with symmetric and asymmetric encryption

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Tianpeng Ju; [2021]
    Nyckelord :Cryptography; neural network; asymmetric encryption; multiparty systems; Kryptografi; neuronnätverk; asymmetrisk kryptering; flerpartssystem;

    Sammanfattning : Deep learning has shown excellent performance in image recognition, speech recognition, natural language processing and other fields over the recent decades. Cryptography is a technical science that studies the preparation and decoding of ciphers. LÄS MER

  4. 3. A study in how to inject steganographic data into videos in a sturdy and non-intrusive manner

    M1-uppsats, KTH/Hälsoinformatik och logistik

    Författare :Julius Andersson; David Engström; [2019]
    Nyckelord :Steganography; Steganalysis; Watermarking; Information hiding; Cryptography; Compression; Non-intrusive; Sturdy; JPEG; Steganografi; Steganalys; Vattenmärkning; Kryptografi; Kompression; Icke störande; Stabil; JPEG;

    Sammanfattning : It is desirable for companies to be able to hide data inside videos to be able to find the source of any unauthorised sharing of a video. The hidden data (the payload) should damage the original data (the cover) by an as small amount as possible while also making it hard to remove the payload without also severely damaging the cover. LÄS MER

  5. 4. Bitcoins challenge To The Financial Institutions

    Magister-uppsats, Umeå universitet/Företagsekonomi

    Författare :Abdirahman Gulled; Jakaria Hossain; [2018]
    Nyckelord :;

    Sammanfattning : Bitcoin is a cryptocurrencyand worldwide decentralizedpayment system. The network is conducted through peer-to-peertransactionsand these transactions are verified by using cryptography technology. Blockchain technology keeps the records of public distributed ledger. LÄS MER

  7. 5. Modified and Efficient Image Encryption Algorithm Based on Chaos Theory, DNA Complementary Rules and SHA-256

    Master-uppsats, Mittuniversitetet/Avdelningen för informations- och kommunikationssystem

    Författare :Rizwan Haider; [2017]
    Nyckelord :block encryption; image cryptography; DNA; chaos; SHA-256;

    Sammanfattning : The emerging topic, symmetric encryption technique for digital imagesusing chaotic function and DNA bases has recently drawn a lot ofattentions from the research community. The use of voice and visualmaterial as an addition to textual data has become more widespread. LÄS MER