METHOD OF CRYPTOGRAPHIC TRANSFORMATION OF INFORMATION Russian patent published in 2017 - IPC H04L9/00 G06F21/62 

FIELD: information technology.

SUBSTANCE: method of cryptographic transformation of the input information into the output is performed for S sequentially performed rounds using cryptographic converters and corresponding round keys in each of the rounds, the cryptographic information conversion being performed on N parallel running converters with different round keys for each converter that are changed through every R rounds (0<R<=S). The resulting intermediate data in each round on the outputs of each of the N parallel-working cryptographic converters is divided into N parts of arbitrary size and uses them as input data for the subsequent round of cryptographic transformations in N parallel-running cryptographic converters, the parts of the output intermediate data in each round at the outputs each of the N parallel-working cryptographic converters is fed into all N parallel cryptographic transducers.

EFFECT: increasing the cryptographic strength of information obtained as a result of the conversion.

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