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algorithms:14 [2015/01/09 16:52]
tbertin
algorithms:14 [2015/04/22 06:38]
tbertin
Line 7: Line 7:
  
 I have performed a first quick analysis of the new GOST Grasshopper algorithm and here are the first observations I have made (of course this analysis needs to be pushed on further): I have performed a first quick analysis of the new GOST Grasshopper algorithm and here are the first observations I have made (of course this analysis needs to be pushed on further):
-   ​*Contrary to the GOST 28147-89 algorithm, GOST Grasshopper belongs to the SPN family (Substitution Permutation Network), ​an block encryption algorithm family which contains the AES (Rijndael).+   ​*Contrary to the GOST 28147-89 algorithm, GOST Grasshopper belongs to the SPN family (Substitution Permutation Network), ​block encryption algorithm family which contains the AES (Rijndael).
    *The main features are: 128-bit blocks (plaintext, ciphertext),​ a 256-bit master key from which 10 128-bit subkeys are derived according to highly nonlinear process, 10 rounds. The general structure is then very common to SPN and is sketched as follows    *The main features are: 128-bit blocks (plaintext, ciphertext),​ a 256-bit master key from which 10 128-bit subkeys are derived according to highly nonlinear process, 10 rounds. The general structure is then very common to SPN and is sketched as follows
    {{ :​undefined:​gost_grasshopper.jpeg?​direct&​200 |}}    {{ :​undefined:​gost_grasshopper.jpeg?​direct&​200 |}}
algorithms/14.txt ยท Last modified: 2016/01/20 18:38 (external edit)