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This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Data Integrity Algorithms knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Among the registers a to h how many involve permutation in each round? |
| A. | 4 |
| B. | 5 |
| C. | 6 |
| D. | 3 |
| Answer» D. 3 | |
| 2. |
The output of the N 1024-bit blocks from the Nth stage is |
| A. | 512 bits |
| B. | 1024 bits |
| C. | N x 1024bits |
| D. | N x 512 bits |
| Answer» B. 1024 bits | |
| 3. |
In the SHA-512 processing of a single 1024- bit block, the round constants are obtained |
| A. | by taking the first 64 bits of the fractional parts of the cube roots of the first 80 prime numbers |
| B. | by taking the first 64 bits of the fractional parts of the cube roots of the first 64 prime numbers |
| C. | by taking the first 64 bits of the fractional parts of the square roots of the first 80 prime numbers |
| D. | by taking the first 64 bits of the non-fractional parts of the first 80 prime numbers |
| Answer» B. by taking the first 64 bits of the fractional parts of the cube roots of the first 64 prime numbers | |
| 4. |
In SHA-512, the registers a to h are obtained by taking the first 64 bits of the fractional parts of the cube roots of the first 8 prime numbers. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
The message in SHA-512 is padded so that it s length is |
| A. | 832 mod 1024 |
| B. | 768 mod 1024 |
| C. | 960 mod 1024 |
| D. | 896 mod 1024 |
| Answer» E. | |