Secret Key Cryptosystem Based on Non-Systematic Polar Codes

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Provided by: Islamic Azad University
Topic: Security
Format: PDF
Polar codes are provably capacity achieving linear block codes. The generator matrix of these codes is specified by knowing the parameters of transmission channel, length and dimension of the used code. On the other hand, for the cryptosystems based on general decoding problem (i.e. code based cryptosystems), the generator matrix of the applied code should be properly hidden from the attacker. Moreover, in the computational security, it is assumed that an attacker with restricted processing power has unlimited access to transmission media.
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