FIELD: information transmission, in particular, hash functions in systems for generation of control sums, digital signature. SUBSTANCE: method involves functional converting of N-bit information which is represented by sequence of electric pulses into n-bit combination by means of sequential encryption of m-bit combination using next s-bit piece of converted N-bit binary information as key and m-bit result of previous encryption as encrypted information. When N bits are exhausted, new n-bit control combination from m-bit result of last encryption is chosen. EFFECT: impossibility of information substitution with same control sum.
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