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In this paper, we propose a format compliant feedback encryption scheme for JPEG2000 by using a chaotic pseudo-random bit generator. This chaotic pseudo-random bit generator is purturbed to enhance cryptographic properties such as cycle length and statistical properties so that it can be used to construct our stream ciphers with higher security. The encrypting time by using our proposed scheme is...
Chaos-based cryptography has several good properties, such as sensitivity to initial conditions, namely, the so-called butterfly effect. However, chaotic maps implemented by computers with finite precision will lead to dynamic degradation. In this paper a perturbed couple chaotic pseudo-random bit generator with good cycle length and statistical property is used to construct a stream cipher for JPEG...
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