Get the free Data Encryption Standard - NIST Computer Security Resource ... - nvlpubs nist

ApMBMBMpREFERENCE /Publications):SHIPS PUB52Supersedes FIPS PUB 51 1970 June 15COo/ faux×FEDERAL INFORMATION PROCESSING STANDARDS PUBLICATION 1987 MAY 28U. S. DEPARTMENT OF COMMERCE×National Bureau

How to fill out data encryption standard

How to fill out data encryption standard

1. To fill out data encryption standard (DES), follow these steps:
2. Choose a plaintext message that you want to encrypt.
3. Convert the plaintext message into binary format if it is not already in binary format.
4. Choose a secret key of 56 bits to use for encryption. The key should be kept confidential.
5. Perform an initial permutation of the 64-bit plaintext message using a fixed permutation table.
6. Split the permuted plaintext message into two halves, each of 32 bits.
7. Perform a series of 16 rounds of encryption, where each round involves a function called Feistel function.
8. Subkeys are derived from the main secret key for each round based on a key schedule algorithm.
9. In each round, the plaintext halves are manipulated using bitwise operations, substitution boxes, and permutation tables.
10. After all 16 rounds, swap the two halves of the ciphertext message.
11. Perform the inverse initial permutation of the ciphertext message using the fixed permutation table to obtain the final encrypted message.

Who needs data encryption standard?

1. Data Encryption Standard (DES) is needed by anyone who wants to protect their sensitive data from unauthorized access.
2. Some specific entities that commonly use DES include:
3. - Government agencies and organizations that deal with classified or sensitive information.
4. - Financial institutions that need to secure financial transactions and customer data.
5. - Online service providers that handle sensitive user information, such as usernames, passwords, and personal details.
6. - Enterprises and businesses that store confidential business data and trade secrets.
7. By using DES, these entities can ensure that their data remains confidential and secure, mitigating the risk of unauthorized access or data breaches.

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What is data encryption standard?

The Data Encryption Standard (DES) is a symmetric-key algorithm for the encryption of digital data. It is a block cipher that uses a fixed-size key to encrypt data in 64-bit blocks.

Who is required to file data encryption standard?

Any entity that handles sensitive or confidential data and is subject to data protection regulations may be required to implement and file under the Data Encryption Standard.

How to fill out data encryption standard?

Filling out the Data Encryption Standard typically involves providing information about the encryption methodologies used, key management practices, and the systems that are safeguarded by encryption.

What is the purpose of data encryption standard?

The purpose of the Data Encryption Standard is to protect sensitive information from unauthorized access by encrypting data, thereby ensuring confidentiality and integrity.

What information must be reported on data encryption standard?

Reports on the Data Encryption Standard must include details such as the type of data being encrypted, encryption methods used, key storage procedures, and compliance with regulatory requirements.