SLR09 – Compression encryption and hashing (A’Level Only) OCR A’LEVEL SLR09 Lossy vs Lossless OCR A’LEVEL SLR09 Run length & dictionary coding OCR A’LEVEL SLR09 Symmetric & asymmetric encryption OCR A’LEVEL SLR09 Hashing Also in this topic... SLR02 – Types of processor (AS & A’Level) SLR05 – Application generation (AS & A’Level) SLR11 – Networks (AS & A’Level) SLR 21 – Thinking logically (AS & A’Level) SLR 24 – Computational methods (A’Level Only)