FIELD: data protection.
SUBSTANCE: proposed personal cryptoprotection system designed for data ciphering and deciphering, authentication of electronic documents using electronic numeric signature, protection of electronic documents against copying, exchange of electronic documents protected against copying, accounting by means of electronic exchange media, protection of computer programs and databases against unauthorized copying has code medium (cassette) incorporating input/output ports for cryptographic data protection, and terminal device for communication with peripheral devices (personal computer, telephone set, card reader); cassettes of personal cryptographic protection systems have unified architecture, common software, and similar secret parent code in the form of plurality of random numbers recorded by protected method precluding their copying to other media and their changing; cassette protective shell has light-reflecting surface; program checking protective shell for integrity after attempt of unauthorized access erases parent code, data processing program checks input open information for service characters functioning as most important means for various cryptographic operations; user's personal data including user's electronic digital signature are entered in ROM; this procedure is made after personal cryptoprotection system user has acquired officinal register, this information including individual number of personal cryptoprotection system being entered in database at the same time.
EFFECT: enlarged functional capabilities.
13 cl, 45 dwg
