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. 2020 Jan 2;33(3):726–734. doi: 10.1007/s10278-019-00310-3

Fig. 4.

Fig. 4

Hash functions (H) map input data (x) to fixed size outputs (h) called hash values. Cryptographic hash functions are non-invertible in that an input maps to a given hash value but not vice versa (i.e., the input cannot be reconstructed from the hash value)