CISSP Exam Prep -015 | Digital Signature | 📑

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00:00 CISSP Exam Prep -015 | Digital Signature | 📑

00:14 Definition:

Key Concepts:
00:45 1. How a Digital Signature Works:
• Step 1: Hashing the Message:
• Step 2: Encrypting the Hash:
• Step 3: Sending the Message and Signature:
• Step 4: Verifying the Signature:

01:47 2. Purpose of Digital Signatures:
• Authentication:
• Integrity:
• Non-Repudiation:

02:34 3. How Digital Signatures Differ from Electronic Signatures:
• Digital Signatures:
• Electronic Signatures:

03:16 4. Asymmetric Encryption and Digital Signatures:
• The private key is used to sign (encrypt) the hash of the message.
• The public key is used to verify (decrypt) the signature.

03:47 5. Hash Functions in Digital Signatures:
SHA-256 or SHA-3

04:21 6. Public Key Infrastructure (PKI) and Digital Signatures:
• Certificate Revocation:

05:08 7. Common Uses of Digital Signatures:
• Email Security:
• Software Distribution:
• Document Signing:
• Blockchain:

06:03 8. Legal and Regulatory Frameworks:
• Certificate Revocation:

06:37 9. Security Considerations:
• Private Key Protection:
• Algorithm Vulnerabilities:
• Revoked Certificates:

07:25 Importance in the CISSP Exam:

08:06 Real-World Example:

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The Certified Information Systems Security Professional (CISSP)