FIELD: cryptography.
SUBSTANCE: in accordance to the method, cryptographic module is provided with two types of data, which may be received even from a communication partner who is not cryptographically reliable, and which either remain in cryptographic module, or are connected to the document. The information, which remains in cryptographic module, is used to protect the information in the document by generation of a check value, and information which is transferred to document, is used to confirm the fact that the document is protected by a cryptographic module, during the check of document authenticity in a control device.
EFFECT: the contact between cryptographically reliable contact device and document creator is realized directly.
2 cl, 3 dwg
