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Table 3 QSDES results when key is in superposition

From: Quantum exhaustive key search with simplified-DES as a case study

 

Plaintext

Key and ciphertext

Probability

0

1001 1010

\(\vert 0000000000\,11111001 \rangle\)

\(9.765623\times 10^{-04}\)

1

1001 1010

\(\vert 0000000001\,01010001 \rangle\)

\(9.765623\times 10^{-04}\)

2

1001 1010

\(\vert 0000000010\,01101001 \rangle\)

\(9.765623\times 10^{-04}\)

\(\vdots\)

\(\vdots\)

\(\vdots\)

\(\vdots\)

1022

1001 1010

\(\vert 1111111110\,11100110 \rangle\)

\(9.765623\times 10^{-04}\)

1023

1001 1010

\(\vert 1111111111\,00001011 \rangle\)

\(9.765623\times 10^{-04}\)