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Which of the following is true about DES?
- a)Data Encryption standard was widely adopted by the industry for use in security products
- b)It is no longer secure in its original form, but in a modified form it is still useful
- c)Plain text is encrypted in blocks of 64 bits
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
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Which of the following is true about DES?a)Data Encryption standard w...
DES is used to encrypt data using a private key algorithm for security purposes. DES is no longer considered secure. Hackers have figured out how to break these out-of-data encryption standards. DES is a 64-bit block cipher which means that it encrypts data 64 bits at a time.
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Which of the following is true about DES?a)Data Encryption standard w...
DES (Data Encryption Standard)
Introduction:
DES, which stands for Data Encryption Standard, is a symmetric encryption algorithm that was widely adopted by the industry for use in security products. It was developed in the 1970s by IBM and subsequently adopted by the National Bureau of Standards (NBS) and the National Security Agency (NSA) in the United States.
Key Characteristics:
1. Widely Adopted: DES was widely adopted by the industry for use in security products. Many organizations and governments around the world implemented DES for encryption purposes.
2. Security Concerns: Over time, the security of DES has been called into question due to advances in technology and the discovery of vulnerabilities. It is no longer considered secure in its original form.
3. Modified Form: Although DES is no longer secure in its original form, it can still be useful in a modified form. Various modifications and enhancements have been made to DES to address its security concerns and improve its resistance against attacks.
Encryption Process:
1. Block Size: DES encrypts plaintext in blocks of 64 bits. Each 64-bit block is divided into two halves, and a series of mathematical operations are performed on these halves.
2. Key Length: The original DES algorithm uses a 56-bit key length. However, due to advances in computing power, a 56-bit key length is no longer considered sufficient for secure encryption. Therefore, modified versions of DES, such as Triple DES (3DES), were developed to use longer key lengths.
3. Algorithm: DES uses a complex series of mathematical operations, including substitution and permutation, to encrypt and decrypt data. These operations are performed in multiple rounds, with each round introducing further confusion and diffusion to the data.
Conclusion:
In summary, DES was widely adopted by the industry for use in security products. While it is no longer secure in its original form, modified versions of DES, such as 3DES, can still be useful. DES encrypts plaintext in blocks of 64 bits and uses a series of mathematical operations to ensure secure encryption.
Introduction:
DES, which stands for Data Encryption Standard, is a symmetric encryption algorithm that was widely adopted by the industry for use in security products. It was developed in the 1970s by IBM and subsequently adopted by the National Bureau of Standards (NBS) and the National Security Agency (NSA) in the United States.
Key Characteristics:
1. Widely Adopted: DES was widely adopted by the industry for use in security products. Many organizations and governments around the world implemented DES for encryption purposes.
2. Security Concerns: Over time, the security of DES has been called into question due to advances in technology and the discovery of vulnerabilities. It is no longer considered secure in its original form.
3. Modified Form: Although DES is no longer secure in its original form, it can still be useful in a modified form. Various modifications and enhancements have been made to DES to address its security concerns and improve its resistance against attacks.
Encryption Process:
1. Block Size: DES encrypts plaintext in blocks of 64 bits. Each 64-bit block is divided into two halves, and a series of mathematical operations are performed on these halves.
2. Key Length: The original DES algorithm uses a 56-bit key length. However, due to advances in computing power, a 56-bit key length is no longer considered sufficient for secure encryption. Therefore, modified versions of DES, such as Triple DES (3DES), were developed to use longer key lengths.
3. Algorithm: DES uses a complex series of mathematical operations, including substitution and permutation, to encrypt and decrypt data. These operations are performed in multiple rounds, with each round introducing further confusion and diffusion to the data.
Conclusion:
In summary, DES was widely adopted by the industry for use in security products. While it is no longer secure in its original form, modified versions of DES, such as 3DES, can still be useful. DES encrypts plaintext in blocks of 64 bits and uses a series of mathematical operations to ensure secure encryption.
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Which of the following is true about DES?a)Data Encryption standard was widely adopted by the industry for use in security productsb)It is no longer secure in its original form, but in a modified form it is still usefulc)Plain text is encrypted in blocks of 64 bitsd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?
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Which of the following is true about DES?a)Data Encryption standard was widely adopted by the industry for use in security productsb)It is no longer secure in its original form, but in a modified form it is still usefulc)Plain text is encrypted in blocks of 64 bitsd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Which of the following is true about DES?a)Data Encryption standard was widely adopted by the industry for use in security productsb)It is no longer secure in its original form, but in a modified form it is still usefulc)Plain text is encrypted in blocks of 64 bitsd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is true about DES?a)Data Encryption standard was widely adopted by the industry for use in security productsb)It is no longer secure in its original form, but in a modified form it is still usefulc)Plain text is encrypted in blocks of 64 bitsd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
Which of the following is true about DES?a)Data Encryption standard was widely adopted by the industry for use in security productsb)It is no longer secure in its original form, but in a modified form it is still usefulc)Plain text is encrypted in blocks of 64 bitsd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Which of the following is true about DES?a)Data Encryption standard was widely adopted by the industry for use in security productsb)It is no longer secure in its original form, but in a modified form it is still usefulc)Plain text is encrypted in blocks of 64 bitsd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is true about DES?a)Data Encryption standard was widely adopted by the industry for use in security productsb)It is no longer secure in its original form, but in a modified form it is still usefulc)Plain text is encrypted in blocks of 64 bitsd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
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Which of the following is true about DES?a)Data Encryption standard was widely adopted by the industry for use in security productsb)It is no longer secure in its original form, but in a modified form it is still usefulc)Plain text is encrypted in blocks of 64 bitsd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Which of the following is true about DES?a)Data Encryption standard was widely adopted by the industry for use in security productsb)It is no longer secure in its original form, but in a modified form it is still usefulc)Plain text is encrypted in blocks of 64 bitsd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Which of the following is true about DES?a)Data Encryption standard was widely adopted by the industry for use in security productsb)It is no longer secure in its original form, but in a modified form it is still usefulc)Plain text is encrypted in blocks of 64 bitsd)All of the aboveCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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