Method of token verification in a key management system

A method of token verification in a Key Management System, comprising the steps of:

• providing to a transaction evidencing device a master key created in a logical security domain and a logical device identifier;
• creating a master key record in a key verification box;
• storing the master key record in a Key Management System archive;
• creating a temporal token key record using the master key in a token key distribution box;
• storing the token key record in a Key Management System archive;
• producing in the transaction evidencing device the token key;
• producing in the transaction evidencing device a token in the logical security domain using the token key;
• inputting the token to a distributed token verification box;
• inputting in the distributed token verification box the token key record from the Key Management System archive;
• determining in the distributed token verification box that the token key is valid in the logical security domain;
• using in the distributed token verification box the token key to verify the token;
• and
• outputting from the distributed token verification box an indication of the result of the verification of the token.

A method of token verification in a Key Management System, comprising the steps of:

• providing to a transaction evidencing device a master key created in a logical security domain and a logical device identifier;
• creating a master key record in a key verification process;
• storing the master key record in a Key Management System archive;
• performing a predetermined operation on information relating to each transaction in the transaction evidencing device to produce evidence of transaction information integrity in the logical security domain;
• inputting the evidence of the transaction information integrity to a token verification process;
• inputting to the token verification process the master key record from the Key Management System archive;
• determining in the token verification process that the master key is valid in the logical security domain;
• using in the token verification process the master key to verify the evidence of transaction information integrity;
• and
• outputting from the token verification process an indication of the result of the verification of the evidence of transaction information integrity.