最終更新日：2024/07/29
(cryptography) A method of encryption by which units of plaintext are substituted with ciphertext according to a regular system; the units
may be single letters (the most common), pairs of letters, triplets of letters, mixtures of the above, and so forth. The receiver deciphers the text by performing an inverse substitution.
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substitution cipher
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substitution cipher
noun
(cryptography)
A
method
of
encryption
by
which
units
of
plaintext
are
substituted
with
ciphertext
according
to
a
regular
system;
the
"units"
may
be
single
letters
(the
most
common),
pairs
of
letters,
triplets
of
letters,
mixtures
of
the
above,
and
so
forth.
The
receiver
deciphers
the
text
by
performing
an
inverse
substitution.
意味（1）
(cryptography)
A
method
of
encryption
by
which
units
of
plaintext
are
substituted
with
ciphertext
according
to
a
regular
system;
the
"units"
may
be
single
letters
(the
most
common),
pairs
of
letters,
triplets
of
letters,
mixtures
of
the
above,
and
so
forth.
The
receiver
deciphers
the
text
by
performing
an
inverse
substitution.
