FIELD: information systems.
SUBSTANCE: invention refers to postage digital characters validation that are created using the franking key and applied on mailing units. Cryptographic data contained in the mentioned franking key, are decrypted and used for franking key verification. According the proposed method, the new data key is generated and sent from the main payment guarantee systems into the local ones. The local payment guarantee systems transfer the result of importing the data key into the main payment guarantee system. The key is activated after it is successfully imported by all local payment guarantee systems.
EFFECT: allows prompt and reliable verification of postage characters.
18 cl, 9 dwg
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