algorithms:14

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algorithms:14 [2015/01/09 16:52] tbertin |
algorithms:14 [2015/04/22 06:38] tbertin |
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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), a 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)