METHOD FOR ENCRYPTING DIGITAL INFORMATION

FIELD: computer science. ^ SUBSTANCE: on basis of key data from selective space of set of source key Ks appropriate source key KS is selected, on basis of which from elements of discontinuous form S of virtual selection space SZ of set of virtual key Kv parameters SKi for transformation Z[S, t] are selected for forming continuous-even form Z of virtual selection space, on basis of which virtual key Kv(t)=Z[SKi, t] is received, which is subjected to analog-digital conversion of expanding G[Kv(t), ti], parameters for which are set by source key and on basis of results of which R-expanded key Kc(i) is formed, setting transformations for information encryption M(i) and decryption of cryptograms E(i), while source binary key is preliminary made into continuous-even virtual key, which is then expanded back for forming of binary expanded key. ^ EFFECT: higher quality. ^ 14 cl, 14 dwg, 6 tbl