Data Encryption Standard (DES): A Symmetric-Key Encryption Algorithm (HINDI)

About Video:-
The Data Encryption Standard (DES) is a symmetric-key encryption algorithm that was widely used for securing electronic data during the 1970s and 1980s. It was developed by IBM in the 1970s and later standardized by the National Institute of Standards and Technology (NIST) in the United States in 1977.

DES operates on 64-bit blocks of data and uses a 56-bit key to encrypt and decrypt data. The key is used to generate a set of 16 round keys that are used to perform a series of substitutions and permutations on the data. The encryption process involves breaking the plaintext data into 64-bit blocks, and then applying a series of substitution and permutation operations to the data using the generated round keys. This results in the ciphertext, which can be transmitted over insecure channels without being easily readable by unauthorized parties.

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User Queries Related Topics:-

1-What is the DES encryption algorithm, and how does it work?
2-How secure is the DES encryption algorithm compared to modern encryption techniques?
3-What is the key size used in the DES encryption algorithm?
4-How are the round keys generated in the DES encryption algorithm?
5-What is the role of substitution and permutation in the DES encryption process?
6-How does the DES encryption algorithm handle plaintext data that is not a multiple of 64 bits?
7-What is the difference between a brute-force attack and other types of attacks on the DES encryption algorithm?
8-How has the use of the DES encryption algorithm changed over time, and why?
9-What are some potential vulnerabilities in legacy systems that still use the DES encryption algorithm?
10-What are some alternatives to the DES encryption algorithm, and how do they compare in terms of security and performance?



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