While some cryptographically secure hash functions can make it hard to find these collisions, they still exist. In the same way, the strength of perceptual hash functions is also a major weakness.

Notice that I use the new function ORA_HASH to create a numeric hash value for the credit card. Now, you can simply query the data for a single credit card, and it automatically comes back in ...

The 2025 paper claims that even without reordering elements over time, it is possible to construct a hash table using Krapivin's method that achieves far better probe complexity – the average ...

Among other desirable properties of hash functions, an interesting one is that it should be collision-resistant, that is it should be difficult to find two messages with the same hash value.