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Table 2 Annotations to represent the video encryption functions and the data to be protected by the video encryption functions

From: Integrated visual security management for optimal condition explorations in resource-constrained systems

Annotation

Type

Meaning

no_enc{data}

Function

Not encrypt data

sign_enc{data}

Function

Pseudo-randomly flip sign bit of data

shuffle_enc{data}

Function

Pseudo-randomly shuffle data each other

xor_enc(large_r){data}

Function

XOR data with pseudo-random number from large range

xor_enc(small_r){data}

Function

XOR data with pseudo-random number from small range

DC

Input data

DC coefficients

AC

Input data

AC coefficients

DCAC

Input data

both DC and AC coefficients

MV

Input data

x and y coordinates of motion vectors