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Chapter Digital Signatures 13.1 Digital Signatures Properties Attacks and Forgeries Digital Signature Requirements Direct Digital Signature 13.2 Elgamal Digital Signature Scheme 13.3 Schnorr Digital Signature Scheme 13.4 NIST Digital Signature Algorithm The DSA Approach The Digital Signature Algorithm 13.5 Elliptic Curve Digital Signature Algorithm Global Domain Parameters Key Generation Digital Signature Generation and Authentication 13.6 RSA-PSS Digital Signature Algorithm Mask Generation Function The Signing Operation Signature Verification 13.7 Recommended Reading 13.8 Key Terms, Review Questions, and Problems To guard against malicious strangers, it is elementary prudence to perform certain rituals before allowing outsiders into a district or mingling with inhabitants. These rituals aim to disarm strangers of their supposed magical powers or disinfect the environment around them. —The Golden Bough, Sir James George Frazer Learning Objectives After studying this chapter, you should be able to: • Present an overview of the digital signature process. • Understand the Elgamal digital signature scheme. • Understand the Sch...