| 摘要 |
FIELD: radio communications engineering, namely, method and device for encrypting signals intended for transmission. ^ SUBSTANCE: during encryption, five encryption rounds are passed in accordance to block encryption code of alternating length with use of first and second encryption tables and encryption key, first encryption round is performed for one of set of messaging signals in accordance with first encryption key-based transformation, second encryption round of one of messaging signals set is performed in accordance with at least one additional transformation based on encryption key, third encryption round of one of messaging signals set is performed in accordance with self-inverting transformation, during which at least one message from signals set is altered, fourth encryption round of one of set messaging signals is performed in accordance with at least one additional inversed transformation based on encryption key, which is inversion of one additional transformation based on encryption key, fifth encryption round is performed for one of set messaging signals in accordance to first inversed transformation based on encryption key, which is inversion of first encryption key-based transformation. ^ EFFECT: prevented interception and unauthorized implementation of encrypted information. ^ 8 cl, 6 dwg |
