METHODS AND SYSTEMS FOR GENERATING AND VALIDATING VALUE-BEARING DOCUMENTS
摘要
Methods and systems for generating and validating value-bearing documents include an issuer module (36C) that receives requests for value-bearing documents. The issuer module communicates the requests to a guarantor module (36B). The requests may include a desired security level and/or a target validator (36A). The guarantor module generates value-bearing documents for each request and randomly or pseudo-randomly selects an encryption key from a set of encryption keys to encrypt the value-bearing document. The set of encryption keys may be a key space selected based on the target validator and/or requested security level. The guarantor module encrypts the value-bearing document using the selected encryption key and forwards the document to the issuer. The issuer forwards the encrypted value-bearing document to the requester. When the requester desires to redeem the document, the requester presents the value-bearing document to a validator. The validator extracts an index from the value-bearing document, uses the index to determine a decryption key, and validates the document using the key.
申请公布号
WO02093316(A2)
申请公布日期
2002.11.21
申请号
WO2002US15438
申请日期
2002.05.15
申请人
INTELLIMARK TECHNOLOGIES, INC.;HENDERSON, VERLIN, RAY;JANOVICH, TRAVIS, JAMES;LIANG, WEIGEN;PEEPLES, JOHN, CHARLES
发明人
HENDERSON, VERLIN, RAY;JANOVICH, TRAVIS, JAMES;LIANG, WEIGEN;PEEPLES, JOHN, CHARLES