Night.

Department of Homeland Security's Strategic Hazard Intervention and Espionage Logistics Service, 2nd Ring Area, Information Strategy and Tactics Group Territory.

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"Well, it seems that your state has recovered", Xiaolan teased, "Although, I can't tell the specific reason, but your sentence 'I'll answer your first question first' makes me feel that the 'normal' Mo Yuan is coming back soon." ”

"Actually, I've always been pretty normal, even though I've been influenced by Vertigo...... It's just a cold sweat. ”

"Looking at me intently just now, that abnormal behavior is not as simple as just breaking out in a cold sweat," Xiaolan thought to herself, "However, even if you continue to ask carefully, there should be no result." ”

"You don't like bitter drinks", Xiaolan changed the subject, "Then you should like to eat sweets, such as chocolate?"

"Huh?" This sudden topic surprised Mo Yuan slightly, "I really like ......"

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"How can you eat chocolate for dinner? Look at how much you eat?"

"Why can't you? Why can't you eat delicious things to your heart's content?"

"After enjoying yourself, maybe it's just disappointment, little brother. ”

"Hmmm......"

"It was rude for me to say such profound things in front of children. ”

"No, I understand. ”

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"Really?" Xiao Lan said with great interest, "I have chocolates from country R here, handmade, I'll bring them to you to taste." ”

"No need ......"

Without waiting for Mo Yuan to refuse, Xiaolan had already gotten up, walked around behind Mo Yuan, picked up the water cup with her hand, "By the way, pour some more water", and walked to the food pantry.

After a while, Xiao Lan held a water cup in her right hand and a delicate coffee-colored carton in her left hand, and slowly walked towards Mo Yuan.

Mo Yuan got up slightly cramped, wanting to reach out to pick it up. "Ha, I thought you were half a sick person before I took out my favorite chocolate that I couldn't afford to eat. With that, Xiaolan handed the water cup to Mo Yuan, took the coffee-colored carton herself, bypassed Mo Yuan, and sat on the seat next to Mo Yuan.

Mo Yuan is not used to such a scene, they were classmates in the academy before, and then they were colleagues and partners in the war spy department, they do have a lot of time to be alone, whether it is studying and discussing when they were classmates, or completing tasks together as partners, or chatting about life together in their spare time, including studying and discussing and formulating action plans together now, they have all experienced many times in the past, but the current situation is a little different from the past, and Mo Yuan will not be able to tell for a while what the difference is- Perhaps, that's not what he's good at.

"This kind of handmade chocolate is made in accordance with the traditional method", Xiaolan slowly opened the carton, and in front of the two of them were twelve chocolates of different shapes delicately wrapped in tin foil, and there was no description of the taste on the tin foil, "Life is like a box of chocolates. You never know what you're gonna get.”

"Well, when I first heard this, I was very strange," Mo Yuan said, "because, every piece in a box of chocolates tastes the same, how can you never know what you're going to get.'" ？”

"If you buy a box of almond chocolates, naturally each one tastes the same," Xiaolan said as she took a square chocolate and handed it to Mo Yuan, while she took a round one, "while traditional handmade chocolates can artificially put together different flavors and package them." ”

"Moreover, it may be a mixture of different flavors depending on the mood, and there is no label of flavor on the tin foil, which is intentional or unintentional design...... "Mo Yuan took the chocolate, slowly peeled off the outer layer of delicately wrapped tin foil, and took the chocolate into his mouth, and instantly, the sweet taste like a rose melted on the tip of the tongue, sweet and thick, accompanied by the continuous overflow of saliva, permeating the entire mouth.

At that moment, Mo Yuan felt the happiness he hadn't seen for a long time, "What kind of flavor does yours taste like?" Mo Yuan couldn't help but ask Xiaolan.

"Well, you might as well answer my first question first. ”

"Interesting. Mo Yuan couldn't help but smile, "Hahaha, Xiaolan, you have excellent grades, if you really plan carefully, presumably, after the deputy team leader, you will be the team leader." ”

"I don't understand what you're saying. Xiaolan shrugged slightly, waiting for Mo Yuan's words.

"Okay", Mo Yuan reluctantly agreed, "The contemporary computer system is a complex system, and it is impossible to completely develop it independently without relying on the achievements of its predecessors, and the same is true for complex programs." ”

"Well, actually, all walks of life, probably like that. ”

"This is especially true of computers, and it is also simpler to get started with programming, even the simplest helloworld, you will inevitably use ready-made library functions, otherwise, without the help of your predecessors - ready-made libraries, it is not an easy job to get characters on the screen to appear on the screen. ”

"Hmm......" Xiaolan thought for a moment, "So, the 'easy' DNA recognition program, or the core part, DNA sequencing, uses the existing program library. ”

"A very reasonable guess," Mo Yuan affirmed, "if I were a relevant designer, I would also choose a mature DNA sequencing library as a basis for further research and development." ”

"I remember them claiming that Yi was a supercomputer that they had developed completely independently," Xiaolan recalled, "and if you use the DNA sequencing libraries of commercial companies, wouldn't it be insulting to the word 'completely autonomous......"

"Hmm, so?"

"So, it's supposed to be the open-source world's DNA sequencing libraries, in which case, no one will know. ”

"Your reasoning is correct," Mo Yuan said in accordance with Xiaolan's words, "They did use a DNA sequencing library developed by the opensource project team. ”

"However, I thought about it carefully, in fact, it is more reliable to use the library of a commercial company and then sign a confidentiality agreement with a commercial company. ”

"Oh, why?" asked Mo Yuan with interest.

"When the interests of a commercial company that pursues profit are greatly satisfied, it will naturally abide by the contract, and it is more reliable than ......" Xiaolan glanced at Mo Yuan, "The idealist of the open source world is still a commercial entity. ”

"Perhaps. ”

"In order to be 'completely autonomous', they use an open-source DNA sequencing library, of course, this will not be known to the outside world", Xiaolan continued along her train of thought, "Moreover, since it is open source, it is quite easy to use it secretly without informing it, and it is a gentleman's agreement to abide by the open source agreement." ”

"That's right. ”

"However, I believe that there is more than one open-source DNA sequencing library, and if you can't be sure which one they use, you can't identify the specific wolfrevo reffub vulnerability, let alone exploit it. ”

"I basically know which library they're using," Mo Yuan said confidently.

"How do you know?"

"The idealist's paranoia and sympathy go hand in hand. Mo Yuan laughed at himself with a smile.

"Huh?"

"Two years ago, I received an email where I confirmed the identity of the other party based on the public key information, of course, this email can only be unlocked with my private key, which also indicates that the other party only wants me to read the content of the letter. ”

Xiaolan looked at Mo Yuan like a child listening to a story, looking forward to the development of the plot.

"The content of the letter goes something like this-

I am a member of the 'easy' project team of country A, and 'easy' is a confidential project of my country, and I cannot tell you the details. Our identification module, the DNA recognition sub-module, uses the open source DNA sequencing library ODGS, but for some reason, we have deleted all the original copyright information in the code and replaced it with our own. It's a shame and a shame for me, but there's nothing I can do about it. What I can think of is to inform the main developers of this open source project, thank you very much for your contribution. Please read this letter and delete it, and do not make it public, I am sure that you will grant me this request. A small person who believes that open source can change the world. ”

"I see...... Xiao Lan picked up a star-shaped chocolate and put it in Mo Yuan's hand.

"When you study at the academy, do something that interests you and kill the boredom. Mo Yuan peeled off the tin foil on the outside of the chocolate and said disapprovingly.

"But what if, later, they switch to other open-source DNA sequencing libraries, or even switch to commercial DNA sequencing libraries?"

"Then our mission will fail. As he spoke, Mo Yuan stuffed the peeled chocolate into his mouth.

"Ahh Xiaolan wasn't angry.

"I don't believe that there is a 100% chance of success, as long as you can evacuate in time when it fails. The chocolate in Mo Yuan's mouth was a typical dark chocolate, with a hard taste and a bitter taste, which made Mo Yuan frown a little.

"Well, but my position as deputy leader is in vain. ”

"There will still be a chance, and the old man himself will think of other ways, after all, promoting you to deputy team leader is good for his interests. Gradually, Mo Yuan's mouth felt a little sweet, and his brows also stretched.

"However, you only answered my first question", Xiaolan was not satisfied, "How to get back the detailed performance parameters of 'easy' obtained after the kramhcneb kcapniLPH code is run?"

"It's actually very simple," Mo Yuan said, replaying the demo video of the machine again, and prompted, "Although, it seems, the equipment on this rudimentary machine - the data disk card slot, and the biometric identification device - are all read-only, in fact, ......"

"Is it through that light?"

"The old man chose you as the deputy team leader, and he is still very discerning", Mo Yuan looked seriously agreed.

"Your hints are so obvious, what else could it be but that flashing light?"

"It's also ......" Mo Yuan said, took the same square chocolate as before and put it in Xiaolan's hand, and continued, "The indicator light was originally used as a progress indicator for data reading, as well as a status indication for identity verification, but it has two states, one bright and one dark, and can be used as a binary information transmission tool, which should be able to transmit 4000 bits of information per second, and can be used to transmit after we run our code using the wolfrevo reffub vulnerability." Easy's detailed performance parameters. ”

"Well, I still have two small questions, but I think BFIPU and the medical team should be able to help me solve them. ”

"You've already thought about it?" Mo Yuan nodded, "The deputy leader's plan of action seems to be clear. ”

"Heh, how did you remove the word 'future'? so confident that this action will be ......" was laughing, suddenly, Xiaolan frowned, her face suddenly turned pale, and large beads of sweat poured out of her forehead.

"What's wrong with you?" Mo Yuan stretched out his hand to wipe the beads of sweat from Xiaolan's forehead, and when he came, he slowly put it down.

"I didn't ...... ...... thing", Xiaolan stroked her forehead and said intermittently, "It's just...... Stress response...... That's it......"

"The shooting?"

"Well, you were hit with a sniper rifle in front of my eyes, and you suddenly didn't react, and collapsed on the coffee chair, my head went blank, my eyes blurred, and tears flowed uncontrollably. ”

"I thought I would have been able to cope with this situation with so much training, but at that time, all I knew was crying. ”

"I, it's really bad, the only thing I could do at that time was not to cry, grit my teeth, endure it, and cry silently......"

"It's terrible......"

"I guess you must be in pain...... I don't know what I think...... I'll hold you and let you lie down slowly...... Lying on my knees......"

"At such a close distance, it seems like it took a long, long time before I realized that you were breathing......"

"Then, Xiang Yu told me, that is not a fatal bullet, and you are not in danger of life......"

"At that moment, I finally couldn't control myself and started crying loudly, which was really embarrassing...... How bad am I...... Like a joke......"

"It's not like this", Mo Yuan exhaled deeply, "The events of your childhood have had a great impact on you, I think, no child can withstand that kind of blow, and neither can I, so your current situation, overreaction to violent scenes, as the psychiatrist said, is normal." ”

"Really?" Xiaolan whimpered.

"Yes, if I had been through an incident like that, I think I would be worse off than you right now. ”

"Is this comfort?"

"It's not...... You've done a great job......"

"I don't want to see that again...... A person is suddenly lost in life like that...... Leave me...... I don't want to ...... alone."

Mo Yuan didn't know how to respond, he wanted to leave, he wanted to leave now, because, this false name, sooner or later, he would leave everything now, and the arrival of that day had made Mo Yuan unimaginable now-although, he was very much looking forward to it.

"It's time for me to go. Mo Yuan said.

His mouth didn't move, and his soft, cold voice didn't appear in the air.

Mo Yuan got up and walked to the entrance.

He watched his tired figure fade away from him, but he still sat beside Xiaolan.

He recalled the despair surrounded by black, the breathless Xiaolan in his arms, and the undried blood stains on the corners of his mouth. He prayed to her not to leave, but the looming her eventually turned into nothingness, leaving him alone to be slowly swallowed up by the black around him, returning to his original form.

"One man...... It's painful indeed. Mo Yuan didn't speak, but the soft and warm voice was already ringing in his heart.

"I don't want to be alone...... Stay with me...... Okay, even if it's just ......."

"Good...... But you're going to tell me what that round chocolate tastes like......" the soft, warm voice echoed with desire.

"You'll know ......"