Cryptography – Key management – Key distribution
Reexamination Certificate
2005-01-25
2005-01-25
Caldwell, Andrew (Department: 2137)
Cryptography
Key management
Key distribution
C705S057000
Reexamination Certificate
active
06847719
ABSTRACT:
Receiver access to a secure communication is determined by the sender. The sender defines an access parameter, such as number of times a message can be decrypted, expiration time of message, or some contingent event that triggers expiration of a message. A send configuration module defines the encryption method, encryption key length, and the control parameter(s). A key management module serves to implement the send configuration parameters during a communication. Upon receiving a message the receiver module contacts the key management module to request a decryption key. The key management module returns the decryption key or a ‘denied’ message. Once the message is decrypted at the receiver, the key and the decrypted source are deleted from the receiver computer. The message is displayed in a bit-mapped window.
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Caldwell Andrew
Davis Zachary
eAcceleration Corp.
Koda Steven P.
LandOfFree
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