Cryptographic system - PowerPoint PPT Presentation

Symmetric Encryption

IT 352 : Lecture 2- part2. Symmetric Encryption. Najwa AlGhamdi , MSc – 2012 /1433. Outline. What is cryptography Symmetric-Key Encryption Symmetric-Key Encryption Algorithm. Cryptography. “Confidentiality service”

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Recover the tampered image based on VQ indexing

Recover the tampered image based on VQ indexing . Source: Signal Processing, Volume 90, Issue 1, Jan. 2010, pp. 331-343 Authors: Chun-Wei Yang and Jau-Ji Shen Reporter: Te-Yu Chen( 陳德祐 ). Outline. Introduction The Proposed Scheme VQ Index Embedding and Watermark Embedding

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