Secured purchasing system
First Claim
Patent Images
1. A method for using an encrypted file in e-commerce on the internet which comprises the steps of:
- creating said file, with said file having a first part and a second part;
encrypting said first part of said file with a first private key, wherein said first part of said file includes a second private key; and
encrypting said second part of said file with said second private key.
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Abstract
A system and method for transferring an encrypted file over the Internet involves a seller, a buyer, and a transaction agent. The file has a first part (administrative information) and a second part (subject-matter content) that are respectively encrypted with first and second encryption/decryption non-public keys. In operation, the appropriate key is released by the seller or the transaction agent for respective use by either the transaction agent or the buyer, to decrypt and reveal the second part of the file to the buyer.
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Citations
20 Claims
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1. A method for using an encrypted file in e-commerce on the internet which comprises the steps of:
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creating said file, with said file having a first part and a second part;
encrypting said first part of said file with a first private key, wherein said first part of said file includes a second private key; and
encrypting said second part of said file with said second private key. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for conducting a secure transaction in e-commerce over the Internet which comprises:
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a means for use by a seller for creating an internet file, said file having a first part containing administrative information about said file and a second part containing a content including transactional subject matter;
a first private key for encrypting said first part;
a second private key for encrypting said second part; and
a means for releasing said second key for use in decrypting said second part to reveal said content to a buyer. - View Dependent Claims (12, 13, 14, 15, 17, 18, 19, 20)
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16. A method for conducting encrypted commercial transactions between a buyer and a seller, wherein said method involves a transaction agent and comprises the steps of:
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presenting a file, said file being created by the seller and containing at least an overhead and a content, with said overhead being encrypted with a first private key and said content being encrypted with a second private key; and
decrypting said content of said file by employing said second private key to reveal said content of said file for use by the buyer in response to a commercial transaction between the buyer and the seller.
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Specification