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Block Cipher Based Public Key Encryption via Indistinguishability Obfuscation

Horubała A., Waszkiewicz D., Andrzejczak M., Sapiecha P.

International Journal of Electronics and Telecommunications

2018

Vol. 64, No. 2

173--178

The article is devoted to generation techniques of the new public key crypto-systems, which are based on application of indistinguishability obfuscation methods to selected private key crypto-systems. The techniques are applied to symmetric key crypto-system and the target system is asymmetric one. As an input for our approach an implementation of symmetric block cipher with a given private-key is considered. Different obfuscation methods are subjected to processing. The target system would be treated as a public-key for newly created public crypto-system. The approach seems to be interesting from theoretical point of view. Moreover, it can be useful for information protection in a cloud-computing model.