The Converse Is Not Necessarily True

Mitsuru Hamada

Issues on quantum cryptography seem interdis-
ciplinary. In light of the situation, it is pointed out that the
very abstract outline of one specific comment of Renner in
a controversy on quantum cryptography can be understood
vividly with a well-known phrase, which is comparable to an old saying.

Tamagawa University Quantum ICT Research Institute Bulletin

Tamagawa University

15

1

35

36