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include chaloy bkz time estimation in the form as LaaMosPol14 #122

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include chaloy bkz time estimation in the form as LaaMosPol14 #122

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b73f820
include chaloy bkz time estimation in the form as LaaMosPol14
gong-cr Sep 12, 2024
d85695b
format change
gong-cr Sep 12, 2024
2233435
fix for pep8 code standards
gong-cr Sep 12, 2024
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26 changes: 22 additions & 4 deletions estimator/reduction.py
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Original file line number Diff line number Diff line change
Expand Up @@ -649,14 +649,12 @@ def __call__(self, beta, d, B=None):


class ChaLoy21(ReductionCost):

__name__ = "ChaLoy21"
__name__ = "ChaLoy21_CoreSVP"
short_vectors = ReductionCost._short_vectors_sieve

def __call__(self, beta, d, B=None):
"""

See [AC:ChaLoy21]_.
Runtime estimation for solving the Core-SVP using quantum sieving, based on the work in [AC:ChaLoy21]_.

:param beta: Block size ≥ 2.
:param d: Lattice dimension.
Expand All @@ -666,6 +664,25 @@ def __call__(self, beta, d, B=None):
return ZZ(2) ** RR(0.2570 * beta)


class ChaLoy21_BKZ(ReductionCost):
__name__ = "ChaLoy21_BKZ"
short_vectors = ReductionCost._short_vectors_sieve

def __call__(self, beta, d, B=None):
"""
Total runtime estimation for the BKZ (Block Korkine-Zolotarev) algorithm,
including multiple calls for solving Core-SVP using quantum sieving, based on the work in [AC:ChaLoy21]_.

:param beta: Block size ≥ 2.
:param d: Lattice dimension.
:param B: Bit-size of entries.
"""

return self.LLL(d, B) + ZZ(2) ** RR(
(0.2570 * beta + 16.4 + log(self.svp_repeat(beta, d), 2))
)


class Kyber(ReductionCost):
__name__ = "Kyber"

Expand Down Expand Up @@ -1012,3 +1029,4 @@ class RC:
GJ21 = GJ21()
LaaMosPol14 = LaaMosPol14()
ChaLoy21 = ChaLoy21()
ChaLoy21_BKZ = ChaLoy21_BKZ()
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