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Encryption, hashing and cryptographic tools

Domain 1: general security concepts (V7 12% · V8 16%) · Lesson 5 of 6

Lesson 5 of 6

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Lesson 5 of 6 · Domain 1: general security concepts (V7 12% · V8 16%)

Encryption, hashing and cryptographic tools

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By the end you’ll be able to

Compare symmetric (AES) and asymmetric (RSA, ECC) encryption and key exchange (Diffie-Hellman/ECDHE), and explain how key length affects strength and performance
Select the encryption level for a scenario (full-disk, partition, volume, file, database, record) and transport/communication encryption (TLS, IPsec)
Explain hashing, salting and key stretching (SY0-701) for password storage, and digital signatures for integrity, authentication and non-repudiation

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Distinguish obfuscation techniques (steganography, tokenization, data masking) and describe blockchain/open public ledger (SY0-701)

Recognise weak or deprecated cryptography (MD5, SHA-1, DES/3DES, RC4, WEP) as a vulnerability

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