System and method for securely transmitting video over a network
First Claim
Patent Images
1. A method, comprising:
- receiving a bit stream associated with at least one video image, wherein the bit stream comprises at least one macroblock header and a plurality of macroblocks, the plurality of macroblocks arranged in a first sequence;
encrypting, using a processor, the at least one macroblock header;
rearranging, using the processor, the plurality of macroblocks into a second sequence in the bit stream, in conjunction with encrypting the at least one macroblock header; and
transmitting, using the processor, the bit stream such that;
the at least one macroblock header is in an encrypted format; and
at least one macroblock is in an unencrypted format.
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Abstract
A method comprises receiving a bit stream associated with at least one video image, wherein the bit stream comprises at least one macroblock header and a plurality of macroblocks. The method continues by encrypting the at least one macroblock header. The method concludes by transmitting the bit stream such that the at least one macroblock header is in an encrypted format and at least one macroblock is in an unencrypted format.
97 Citations
18 Claims
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1. A method, comprising:
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receiving a bit stream associated with at least one video image, wherein the bit stream comprises at least one macroblock header and a plurality of macroblocks, the plurality of macroblocks arranged in a first sequence; encrypting, using a processor, the at least one macroblock header; rearranging, using the processor, the plurality of macroblocks into a second sequence in the bit stream, in conjunction with encrypting the at least one macroblock header; and transmitting, using the processor, the bit stream such that; the at least one macroblock header is in an encrypted format; and at least one macroblock is in an unencrypted format. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus, comprising:
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a memory operable to store a cryptographic key; and a processor communicatively coupled to the memory and operable to; receive a bit stream associated with at least one video image, wherein the bit stream comprises at least one macroblock header and a plurality of macroblocks, the plurality of macroblocks arranged in a first sequence; encrypt the at least one macroblock header based at least in part on the cryptographic key; rearrange the plurality of macroblocks into a second sequence in the bit stream in conjunction with encrypting the at least one macroblock header; and transmit the bit stream such that; the at least one macroblock header is in an encrypted format; and at least one macroblock is in an unencrypted format. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A system, comprising:
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a camera operable to capture at least one video image; an encoder communicatively coupled to the camera, wherein; the encoder is operable to compress the at least one video image into a bit stream; and the bit stream comprises at least one macroblock header and a plurality of macroblocks, the plurality of macroblocks arranged in a first sequence; and an encrypter communicatively coupled to the encoder and operable to; encrypt the at least one macroblock header; rearrange the plurality of macroblocks into a second sequence in the bit stream in conjunction with encrypting the at least one macroblock header; and transmit the bit stream such that; the at least one macroblock header is in an encrypted format; and at least one macroblock is in an unencrypted format. - View Dependent Claims (16, 17, 18)
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Specification