Cascading key encryption
First Claim
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1. A method for secure data transmission using multiple encryption keys comprising:
- dividing a message object to be encrypted into a plurality of portions, each portion being associated with a shift point;
utilizing a first key to encode a first portion of the message object;
when a first shift point occurs, generating a second key by executing a function that uses the first key and additional information;
utilizing the second key to encode a second portion of the message object;
upon completion of encoding of all of the plurality of portions of the message object, transmitting the encrypted message object to a receiver and destroying the keys.
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Abstract
A method for securely transmitting data involves generating keys depending on previous keys and additional information, such as a password, in order to create a pseudo one-time pad. The data is encrypted using the pseudo one-time pad prior to transmission. Only the initial key and minimal additional data are transferred between the sender and receiver in order to synchronize the keys.
158 Citations
5 Claims
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1. A method for secure data transmission using multiple encryption keys comprising:
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dividing a message object to be encrypted into a plurality of portions, each portion being associated with a shift point;
utilizing a first key to encode a first portion of the message object;
when a first shift point occurs, generating a second key by executing a function that uses the first key and additional information;
utilizing the second key to encode a second portion of the message object;
upon completion of encoding of all of the plurality of portions of the message object, transmitting the encrypted message object to a receiver and destroying the keys. - View Dependent Claims (2, 3, 4, 5)
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Specification