Blue Sword

"Then how do you want to prove it?" Silla asked, crossing her arms.

"Show me your process for making secret codes," the group leader said, "I will judge."

So the girls began to discuss quietly again.

"Sell it or not?"

"I think the other party is very insincere. How can you ask the other party to give you a complete plan without paying even a penny?"

"Besides, if the other party sees the plan but doesn't buy it, and goes back to tinker with it our way, wouldn't we suffer a big loss?"

"The main reason is that our method is too simple, has no technical content and is easy to copy."

"Wait a minute!" Silla suddenly had an idea, "I have an idea..."

After the girls whispered and finalized, they returned to the negotiating table, all with smiles on their faces:

"I can show you the plan."

So the group leader breathed a sigh of relief and laughed: "Then I'd like to ask you to demonstrate."

Mia brought materials from the church: small slips of paper, potato stamps, carbon paper...and matches and wax.

"Our method is very simple," Sheila said. "Close your eyes, print the pattern on the potato stamp on paper, and use carbon paper to create multiple paper strips with the same pattern."

"Since the maker closed his eyes during the whole process, the mutation cannot see the arrangement and rotation angle of the seal pattern on the paper through the maker's memory."

"However, the patterns on all the slips are the same. Each person carries a small slip of paper and checks the slips when identifying themselves."

"If it is true, then the patterns on the paper should be consistent with each other. If the other party is a copy, then there will be problems with the pattern on the paper."

"After each confirmation, the password will be invalid, so it is recommended that you buy multiple sets of passwords. When one set is used up, you can use the next set."

"Hmm..." The leader rubbed his chin and started thinking. Although this method is simple, it is also a bit clever. The key is that it can be easily copied.

For example, potato seals can be replaced by clay blocks; small paper strips can be replaced by cloth strips; carbon paper is the most troublesome, but the maker arranges all the cloth strips in advance and puts the stamp on each piece of paper with his eyes closed. Put the lid on it, and as long as your hand is steady and does not rotate, the pattern will be the same.

So we can do it ourselves, there is no need to buy theirs... Just when the group leader started to feel sinister, Sheila opposite suddenly smiled and said:

"Of course, this method is not perfect, and there is still a fatal flaw."

"Loophole?" the leader asked doubtfully.

"Yes." Sheila smiled and said, "Before I got the password, I just assumed that your team didn't have a way to identify the clones."

Isn't this nonsense? If there is a way to identify it, why should I buy a password from you? The leader thought to himself.

"So." Sheila's eyes turned around a few times on the mercenary behind him, "Suppose there are clones in your team now..."

"... Then after he gets the code paper, he only needs to secretly open it and take a look, and your code will be invalid."

Leader:………………

Damn it!

"Since you said that, there must be a solution, right?" The group leader showed a suspicious expression.

"That's right." Sheila took the matches and wax blocks next to her, "I wonder if you have ever heard of the Oriental wax pill book?"

"Light a match, heat the wax block, and then put the crumpled paper ball in. When the wax block solidifies into a wax ball, the book is perfectly sealed inside."

"If you want to see the note inside, you have to use a weapon to cut the wax pill open. Of course, this will undoubtedly destroy the wax pill."

"Therefore, put all the secret codes in wax pills, and then ask the mercenaries to bring the wax pills in a conspicuous place, such as stringing them up with a rope and hanging them around the neck. In this way, once you see the wax pills around someone's neck being destroyed, then By default, this set of codes is invalid to prevent the codes inside from being leaked to the mutation without you knowing it."

"Hmm." The leader thought that this method was starting to get complicated. He thought for a long time before asking, "But what if we encounter a very fierce battle and don't have time to take care of everyone?"

"If there is a clone in my team, then when the battle is the fiercest and no one can pay attention to it, it can quickly remove the wax pill and cut it open, and then mutate and quickly create another clone, carrying it intact. The wax pills got mixed in..."

"That's because your skills are inferior to others, which is why the mutation took advantage of it." Sheila said rudely, "To put it bluntly, if your strength is really too weak, even if you are given the secret code, your members will be captured by monsters. Go kill it, and then open the secret code and take a look, wouldn’t it mean that all the encryption measures are useless?”

"We can give you the code. It is designed in the form of wax pills to increase the time it takes to read the code and increase the difficulty of detecting the code. However, if you are really weak enough to be on the battlefield, some members will be out of sight for several minutes. , that only means that you are not suitable to deal with this mutation, so you should leave this town as soon as possible."

Leader:………………

For some reason, he felt an inexplicable sense of relief at being insulted by this masked girl in a contemptuous tone.

It seemed as if something strange had awakened.

Thinking about it carefully, what the other party said is not wrong. A foolproof password scheme probably does not exist, but as long as the password scheme is perfect enough and can increase the probability of identifying clones to an acceptable level, then even if it is not 100% effective, it will still have enough commercial value... …

commercial value?

"We can buy this code." The team leader said with a smile, "But I wonder if you are interested in cooperating?"

"Cooperation?" Silla was puzzled.

"You provide the materials, and we provide the manpower." The group leader rubbed his hands with a smile, "Sell the set of codes you designed to the major mercenary teams in the town who have been made miserable by the clones."

The girls were shocked when they heard this.

Wow, we didn’t expect that we could actually get rich by selling this? You guys have a bit of a flexible business mind! Why did you come to be a mercenary? Is this a waste of talent?

"Actually, our iron ship mercenary group also engages in smuggling part-time in our spare time." Under the astonished eyes of the girls, the group leader explained with a smile, "We are still a little confident in negotiating and finding ways. of."

"Think about it carefully. You are the one who invented this method, but you lack enough manpower to sell these resources. We can provide manpower and channels, but we need you to provide raw materials, so our cooperation is a win-win situation ." The group leader said, "I just don't know your supply capacity..."

"The supply capacity is no problem." Sheila said. Other mercenary groups will not carry some messy things with them due to weight issues.

However, the girls have a Fire Island team after all. Not to mention wax blocks and matches, they have toothbrushes, toothpaste, towels, toilet paper, napkins, ceramic bowls, and all kinds of daily necessities. They even store a lot of them on the island.

"That's good. In this way, you can mass-produce secret codes in the church, and we will come here regularly to pick up the goods, and then sell these secret codes to other mercenary groups..."

"Wait a minute." Sheila corrected him, "You can't sell the codes directly, because the major mercenary groups cannot confirm whether you are mutated clones, so they will not trust the codes in your hands."

"Yes, yes, that's right." The leader of the iron ship mercenary group also reacted immediately, "Then we should..."

"You buy materials from us!" Sheila said, "Then take the materials to other mercenary groups, explain them on the spot, make them on the spot, and sell them on the spot!"

"That's right!" The group leader clapped his thigh, agreeing with Sheila's statement, and then suddenly realized another problem.

If they directly purchase cryptographic codes and then sell them, they will probably settle accounts based on the actual number of cryptographic codes sold. As for how much to sell, isn't it the Iron Ship Mercenary Group that controls the channels that has the final say? I bought 100 copies of materials and sold 90 copies. I insisted that only 40 copies were sold and I had to settle the bill based on 40 copies. The girls had no way of confirming it.

But if you buy the materials directly, you have to pay the money and deliver the goods. The price is whatever the price is negotiated. The Iron Ship Mercenary Group has no room for fraud or falsified sales...

Have you actually thought of such in-depth details before even talking about the business model? !

The leader of the Iron Ship Mercenary Group stared at the masked girl opposite him in astonishment, completely unable to see her expression under the mask.