"Then how do you want to prove it?" Sheila asked, crossing her arms.
"Show me the process of making your code." The leader said, "I will judge."
So the girls started discussing in low voices again.
"Sell it or not?"
"I feel that the other party is very insincere. How can you expect them to provide a complete solution without paying a penny?"
"Besides, what if the other party looks at the proposal and then decides not to buy it, and then comes back to try our method, wouldn't we be at a huge loss?"
"The main reason is that our method is too simple, has little technical content, and is easy to replicate."
"Wait a minute!" Sheila suddenly had an idea, "I have an idea..."
After the girls whispered and finalized it, they returned to the negotiation table, all with smiles on their faces:
"I can show you the plan."
So the team leader breathed a sigh of relief and laughed: "Then please demonstrate it to me."
Mia brought materials from the church: small pieces of paper, potato stamps, carbon paper... and matches and wax.
"Our method is very simple," Sheila said. "With your eyes closed, you print the pattern from the potato stamp on paper, and use carbon paper to create multiple copies of the same pattern."
"Since the maker kept his eyes closed throughout the process, the mutation could not see the arrangement and rotation angle of the seal pattern on the paper through the maker's memory."
"However, the pattern on all the slips is the same, and each person carries a small slip that is checked during identification."
"If it's real, then the pattern on the note should be consistent with each other. If the other party is a copy, then there will be a problem with the pattern on the note."
"After each confirmation, the code becomes invalid, so I suggest you buy multiple sets of codes. When one set is used up, you can use the next one."
"Hmm..." The team leader stroked his chin and thought. Although this method was simple, it was also a bit clever. The key point was that it could be easily copied.
For example, a potato stamp can be replaced by a piece of clay; small paper strips can be replaced by strips of cloth; carbon paper is the most troublesome, but the maker arranges all the strips of cloth in advance and stamps each piece of paper with his eyes closed. As long as the hand is steady and does not rotate, the pattern stamped out will be similar.
So we can do it ourselves, there is no need to buy from them... Just when the leader was starting to act evil, Sheila on the opposite side suddenly said with a smile:
"Of course, this method is not perfect and still has a fatal flaw."
"Loophole?" the team leader asked doubtfully.
"Yes." Sheila smiled and said, "Before we get the code, I will assume that your team has not found a way to identify the replica."
This is nonsense, why would I need to buy the code from you if I already have the identification method? The team leader thought.
"So." Sheila's eyes moved around the mercenary behind him, "If there are clones mixed into your team now..."
"... Then once he gets the code paper, he only needs to secretly open it and take a look, and your code will become ineffective."
Leader: …
Oh shit!
"Since you said so, there must be a solution, right?" The team leader showed a skeptical expression.