What is the result of hashing the same input with the same algorithm?

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BlackTom AI · Accepted Answer

Consider the question: 'What is the result of hashing the same input with the same algorithm?'
Option a: 'Encrypted text' - This is misleading. Hashing is not encryption; it produces a fixed-size digest, not reversible ciphertext. Encryption implies the possibility of decryption, which hashing does not provide.
Option b: 'Random value' - Hash outputs are not random. A good hash function is deterministic, producing the same digest for identical inputs when the algorithm is the same.
Option c: 'Same output' - This accurately describes the core property: using the same input with the same algorithm yields the same hash value every time, assuming no changes in the algorithm or implementation.
Option d: 'Different hash' - This contradicts the deterministic nature of hash functions; unless the input or algorithm changes, the hash should not differ.
In summary, the only statement that aligns with the fundamental behavior of cryptographic hash functions is that the same input under the same algorithm produces the same output, while the other options reflect common misconceptions about hashing versus encryption, randomness, or variability.

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What is the result of hashing the same input with the same algorithm?

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