Fig. 14
From: Quantum exhaustive key search with simplified-DES as a case study
The probabilities of all possible keys for 10-bit key size. The keys are represented in decimal format. The chosen plaintext in this experiment is 10100101, and the ciphertext is 00110110. After 18 Grover iterations, the state 0010010111 (151 in decimal) and state 0011011111 (223 in decimal) are detected with probability of 0.4978935 each