Learn about stream and block ciphers.
- [Instructor] Ciphers can be broken down…into two different categories based on the method used…to ingest the data into the algorithm.…These ciphers are categorized as either a stream cipher…or a block cipher.…Stream ciphers perform their computations and encryptions…on a single bit at a time,…making them a bit by bit process.…They utilize key stream generators to create a bit stream…that is mixed with the input plaintext…using a mathematical XOR function or Exclusive OR.…This allows it to create the encrypted ciphertext.…
Because stream ciphers perform bit by bit encryption,…they are well suited…for securing real-time communication data streams…like streaming audio or streaming video.…Stream-based ciphers are often used…in hardware encryption devices…and have a lower error rate than block ciphers.…They also use the same key for encryption and decryption.…Stream ciphers tend to be cheaper to utilize…than a block cipher…and they also employ confusion technology only,…not diffusion technology.…What is confusion?…
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- Adapting data flow security to changing business needs
- Provisioning and deprovisioning resources
- Security and privacy considerations of storage integration
- Integrating the cloud and virtualization into the secure enterprise architecture
- Identity proofing and identity propagation
- Integrating cryptographic techniques into the secure enterprise architecture
- Cryptocurrency and blockchain
- Mobile device encryption considerations
- Integrating secure communications and collaboration solutions
Skill Level Advanced
Duration
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Introduction
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What you should know1m 27s
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About the exam1m 44s
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1. Integrating Hosts, Storage, Networks, and Applications into the Secure Enterprise Architecture
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Standards3m 49s
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Interoperability issues7m 14s
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Resiliency issues3m 57s
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Logical deployment diagrams1m 46s
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2. Integrating the Cloud and Virtualization into the Secure Enterprise Architecture
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Cloud considerations4m 47s
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Cloud service models5m 20s
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Commingling considerations2m 56s
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Data security considerations2m 42s
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3. Integrating Authentication and Authorization into the Secure Enterprise Architecture
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Authentication6m 4s
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Authorization5m 59s
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Attestation2m 26s
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Identity proofing2m 13s
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Identity propagation1m 27s
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Federated identification4m 9s
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Trust models2m 36s
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4. Integrating Cryptographic Techniques into the Secure Enterprise Architecture
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Cryptographic techniques6m 59s
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Message authentication1m 23s
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Protection of data6m 26s
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Stream versus block ciphers2m 14s
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Symmetric encryption5m 47s
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Asymmetric encryption3m 23s
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Public key infrastructure3m 54s
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5. Integrating Secure Communications and Collaboration Solutions into the Secure Enterprise Architecture
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Remote access4m 17s
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Unified communication1m 5s
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Web conferencing3m 2s
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Audio and video conferencing2m 44s
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Social media collaboration1m 55s
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Conclusion
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What next?3m 9s
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Video: Stream versus block ciphers