Lots of new papers added this week—more that we can list here. Check the Reports and Papers Archive for more.

CERIAS Reports & Papers

• "Cryptanalysis of Number Theoretic Ciphers"
• "Sums of Squares of Integers"
• "Secure Outsourcing of Sequence Comparisons"
• "Universal Accumulators with Efficient Nonmembership Proofs"
• "Dynamic Virtual Credit Card Numbers"
• "A Construction for General and Efficient Oblivious Commitment Based Envelope Protocols"
• "Scanner identification using sensor pattern noise"
• "Forensic classification of imaging sensor types"
• "A Survey of Forensic Characterization Methods for Physical Devices"
• "Lapped-orthogonal-transform-based adaptive image watermarking"

CERIAS Weblogs

• One of the Barriers to Computing Diversity
• Comment Spam Extortion