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8 Popular Encryption methods real Usage

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Encryption works as it replaces original data with some special characters and stores the data. You need a private key to decrypt the data. Else it is not possible to understand encrypted data even for hackers.

Private keys are two types. Sender uses one private key and receiver uses one other private key.
I have given in this post about 8 encryption methods.

Flow Diagram Encryption
 Different Encryption Methods Classic CipherRandom Key GenerationRSA TokenHash FunctionsMac value - Message Authentication codeKey HashTLS ProtocolAuthenticated Cipher  1. Classic Cipher The best example is this kind of algorithm was used in world war -II communication machines. 2. Random Key Generations One kind of security. They use an algorithm that sends random numbers. People use that number as a password.
3. RSA Token Every 60 seconds a token is generated. Mostly people use for financial applications. An extra identity mechanism along with user id and password. 4. Hash Functions It assigns a hash va…
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Ultimate Answer for difference between Storage Node and Compute Node

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Storage Node Vs Compute Node

Compute Node

  • This is the computer or machine where your actual business logic will be executed.
  • The compue node mainly focussed on RAM and CPU


Storage Node

  • This is the computer or machine where your file system reside to store the processing data. In most of the cases compute node and storage node would be the same machine.
  • The storage node maily focussed on block storage.


What are the restrictions for Key and Value Class

  1. The key and value classes have to be serialized by the framework. To make them serializable Hadoop provides a Writable interface. 
  2. As you know from the java itself that the key of the Map should be comparable, hence the key has to implement one more interface WritableComparable.

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