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CompTIA · Security+ SY0-801

Cryptography fundamentals

Security+ SY0-801 · Lesson 4 of 32 · 23:55

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In this lesson

Prepare for the Security+ SY0-801 exam (CompTIA Security+ V8). In this lesson: symmetric and asymmetric encryption, key exchange and key length, hashing and salting, digital signatures, cryptographic tools, and obfuscation. Includes three original practice questions.

Preview the topics
  • Ashgrove’s engineers must encrypt a folder of large design files on a file server, quickly, and only their team holds the key. Which type of encryption fits best?
  • Ashgrove’s factories download a firmware update, and must confirm that the file was not altered and that it really comes from engineering. What should engineering provide?
  • A developer proposes to protect the web store’s customer passwords by running them through a code obfuscator before saving them. What should the team use instead?