Before two entities can communicate using cryptography, they must exchange encryption keys. In this video, Mike Chapple explains how secure key exchange takes place.
- [Instructor] As we've already discussed, … every encryption algorithm relies upon the use … of encryption and decryption keys, … and it's critical to keep … some of those keys secret. … In the case of symmetric encryption, … the sender and receiver … share a single secret key … that nobody else should know. … Before the sender and receiver … can begin to communicate … using a symmetric algorithm, … they must somehow agree upon … and exchange the shared secret key … that they will use for that communication session. … If you stop and think about it for a moment, … this can be a real challenge. … Let's say that Alice and Bob … would like the ability to communicate … secretly with each other. … They hope to achieve two … of the goals of cryptography: … confidentiality for their communications … and an assurance of authentication … that they are really talking to each other. … How can they exchange an encryption key? … Well, Alice might go ahead … and randomly select a secret key, which is fine, …
Note: This course is designed to cover the most recent version of the CCSP exam, released in August 2019.
- Block storage types
- Cloud storage security threats
- Encryption basics
- Choosing encryption algorithms
- Key management
- Public key infrastructure (PKI)
- Creating and revoking digital signatures
- Securing common protocols
- Data protection
- Information management
- Information rights management
- Logging security events
- Continuous security monitoring
Skill Level Intermediate
CompTIA Cloud+ (CV0-002) Cert Prep: 2 Securitywith Joseph Holbrook1h 31m Intermediate
1. Cloud Data Storage
3. Key Management
4. Public Key Infrastructure
5. Cryptographic Applications
6. Data Protection
7. Information Management
8. Data Event Auditability
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