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SIS parameters and attacks

Pre-testnet parameters

These were the original parameters of the original pre-print of Vortex

log_2(q) log_2(\beta) n SVP (L2) SVP (Loo) BKZ attack CPW attack #limbs pi
64 5 32 136.12 257.92 135.22 143.0 52 1664
64 7 64 187.51 396.8 160.64 287.07 37 2368
64 11 128 233.94 476.16 151.97 598.14 24 3072
64 16 256 315.41 634.88 158.74 1272.31 16 4096
64 22 512 451.48 952.32 181.86 2741.67 12 6144
64 32 1024 614.42 1269.76 182.46 5967.82 8 8192
254 3 2 66.04 105.4 75.13 192.5 86 172
254 4 4 90.57 158.72 95.7 242.12 64 256
254 5 8 135.24 252.96 134.2 261.1 52 416
254 7 16 186.05 367.04 159.36 270.0 37 592
254 11 32 232.19 476.16 150.7 524.0 24 768
254 16 64 313.07 634.88 157.36 1262.46 16 1024
254 24 128 412.06 872.96 150.29 2720.33 11 1408
254 32 256 609.74 1269.76 180.8 5921.27 8 2048
254 51 512 761.0 1587.2 144.96 13013.81 6 3072

Current parameters

The current parameters that are used in Linea

log_2(q) log_2(beta) n SVP (L2) SVP (Loo) BKZ attack CPW attack #limbs pi
64 2 32 315.41 634.88 371.53 144.0 128 4096
64 4 64 315.41 634.88 358.29 305.57 64 4096
64 6 128 415.27 872.96 415.0 598.14 43 5504
64 10 256 494.99 1111.04 380.99 1272.31 26 6656
64 16 512 614.42 1269.76 344.85 2741.67 16 8192
64 22 1024 886.27 1904.64 401.92 5967.82 12 12288
254 1 3 238.9 472.44 281.37 225.25 256 768
254 2 7 275.99 551.18 324.59 259.03 128 896
254 4 16 313.07 634.88 355.56 270.0 64 1024
254 6 32 412.06 853.12 411.68 637.0 43 1376
254 10 64 491.19 1031.68 377.78 1262.46 26 1664
254 16 128 609.74 1269.76 341.83 2720.33 16 2048
254 24 256 807.72 1745.92 333.14 5921.27 11 2816
254 32 512 1203.09 2539.52 405.68 13013.8 8 4096

Future parameters

Parameters that we contemplating for the future

log_2(q) log_2(beta) n SVP (L2) SVP (Loo) BKZ attack CPW attack #limbs pi
256 1 2 165.9 317.44 194.27 194.0 256 512
256 2 4 165.9 317.44 193.56 244.0 128 512
256 4 7 147.22 277.76 162.04 261.01 64 448
256 8 18 184.59 357.12 145.31 451.0 32 576
256 16 54 268.69 535.68 131.45 1027.0 16 864
256 24 112 365.34 763.84 130.2 2217.54 11 1232
256 32 192 464.91 952.32 130.64 4107.0 8 1536
64 1 19 371.47 753.92 439.65 129.04 256 4864
64 2 20 203.28 396.8 238.03 129.04 128 2560
64 4 32 165.9 317.44 183.87 143.98 64 2048
64 8 64 165.9 317.44 128.65 287.07 32 2048
64 16 216 268.69 535.68 131.45 1000.43 16 3456
64 24 448 365.34 833.28 130.2 2217.54 11 4928
64 32 768 464.91 952.32 130.64 4107.0 8 6144