Bloom filters are an essential class of probabilistic data structures designed for rapid set membership testing while minimising memory usage. By utilising multiple hash functions, these ...

See RSA and hashing. One-Way Processing Also called a "one-way hash function" because it is nearly impossible to turn the digest back into the original data.

Hashing functions are not reversible. The output of a hashing function is a fixed-length string of characters called a hash value, digest or simply a hash.