Difference between revisions of "Hash"
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(Created page with "A hash is a one way encryption of data into a fixed-length string. When the hash length is big enough (e.g. 32 bytes) it is virtually impossible that any data-object can have...") |
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A hash is a one way encryption of data into a fixed-length string. When the hash length is big enough (e.g. 32 bytes) it is virtually impossible that any data-object can have the same hash has as any other object. | A hash is a one way encryption of data into a fixed-length string. When the hash length is big enough (e.g. 32 bytes) it is virtually impossible that any data-object can have the same hash has as any other object. | ||
Being one-way means you cannot construct the hashed object from the hash. The object will always result in the same hash (provided the same hashing algorithm [https://en.wikipedia.org/wiki/Cryptographic_hash_function] is used ) | Being one-way means you cannot construct the hashed object from the hash. The object will always result in the same hash (provided the same hashing algorithm [https://en.wikipedia.org/wiki/Cryptographic_hash_function] is used ) | ||
Latest revision as of 20:55, 17 May 2021
A hash is a one way encryption of data into a fixed-length string. When the hash length is big enough (e.g. 32 bytes) it is virtually impossible that any data-object can have the same hash has as any other object.
Being one-way means you cannot construct the hashed object from the hash. The object will always result in the same hash (provided the same hashing algorithm [1] is used )