Method and apparatus for composable block re-encryption of publicly distributed content
Secure communication from one encryption domain to another using a trusted module. In one embodiment, the invention includes receiving encrypted streamed content encrypted with a first key, generating a substitution key stream based on the first key and a second key, generating a transposition key s...
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Main Author | |
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Format | Patent |
Language | English |
Published |
19.02.2004
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | Secure communication from one encryption domain to another using a trusted module. In one embodiment, the invention includes receiving encrypted streamed content encrypted with a first key, generating a substitution key stream based on the first key and a second key, generating a transposition key stream based on the first and second keys, and simultaneously decrypting and re-encrypting the encrypted streamed content using a combination of the substitution and transposition streams to produce re-encrypted streamed content encrypted with the second key. |
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Bibliography: | Application Number: US20020222093 |