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MatMul
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1
tags
fhe/algorithm
,
onenote
Nov 11, 2020
1 min read
R
=
Z
/
Φ
m
(
X
)
上でBGV, 平文空間は
R
p
r
=
R
/
p
r
R
(
p
: 整数,
r
: 正)
d
∈
Z
n
∗
,
p
d
≡
1
Z
p
r
(
X
)
/
Φ
m
(
X
)
≅
⨁
r
=
1
e
Z
p
r
[
x
]
/
F
i
(
x
)
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