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Results tagged with feistel-network
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user 75740
A feistel-network or feistel cipher is a structure that has been used to create a number of different block ciphers (e.g., DES, Blowfish, Twofish, RC6).
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DES f function injective for no fixed subkey?
Expander is injective but S-boxes are not injective, so in whole $f$ is not injective. It means that you can make two inputs with different $R$s in which the output of $f$ after just one round be the …
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