Arcane Lord

Before using the second-generation communication artifact, you must first enter the magic mark, which is prepared for the [Twin Mark], which is equivalent to presetting a set of public encryption algorithms.

When two communication artifacts are close to each other, the [Twin Mark] can be activated. The encryption algorithm pre-stored by two different users will form a new encryption algorithm and be saved on the two communication artifacts.

After that, each communication will be encrypted using this encryption algorithm.

Of course, the magic mark for communication is a mark that can be made public, and it is not difficult to obtain the marks of two people at the same time.

The key to this encryption method lies in the characteristic values ​​assigned to the new algorithm by each of the two people when the [Twin Mark] is activated at the same time.

At this point, both parties do not know the characteristic values ​​assigned by the other party to the new algorithm. When decrypting, each communication artifact decrypts with the characteristic values ​​assigned by each user.

Even if you use the name of the communication target as the characteristic value for the convenience of memory, it is OK as long as you don't tell it to others.

If you send a message to someone who does not have a second-generation communication artifact, it is encrypted with a public communication magic mark, which is already very popular in Netheril.

Of course, due to the particularity of [Magic Network Background Communication] (it disappears as soon as it is received, and there is no possibility of eavesdropping in the middle), traditional encryption methods may not be suitable for local conditions. In fact, as long as it is accurately locked, it is difficult to be intercepted by others. This mainly depends on the level of the caster himself.

But relatively speaking, only a more accurate encryption method is a more accurate locking method.

Otherwise, the magic network background communication is more like a full-frequency broadcast communication spell when it is sent, and the risk of being intercepted is still very high.

...

In a corner of the workshop, after Xia Duo and Ganar activated the twin marks, a small rune emitting a faint glow immediately appeared in the communication instrument.

This is a visible projection formed by the characteristics of the packaging material of the communication instrument. If it is packaged with other materials, the projection will disappear, but the twin marks will still exist inside the instrument.

It’s just that when using it, you need to distinguish and find it by yourself through the changes in the magic network string, which is not as convenient as the current rune.

In fact, this rune can also be regarded as a note when saving a number on the mobile phone on Earth, but the second-generation communication instrument is not powerful enough to allow users to customize the notes, and they are all automatically generated internally.

Of course, even if someone can completely crack the second-generation communication magic weapon, it is impossible to reverse the communication target information only through the tiny runes projected from the crystal ball of the communication magic weapon.

The process of generating runes is similar to the process of data dimensionality reduction. Only part of the data is cut off to form a projection, and a large amount of information is actually lost, which is not enough to reverse the information of the communication target.

Xia Duo did not carefully examine this tiny rune. This rune itself has no practical meaning. It only has meaning because it refers to a certain communication target.

"Ganar, you send a message to me, just say something."

"Yes, President."

Ganar held the crystal ball and said casually, "President, I am sending a message to you, did you receive it?"

"..."

Xia Duo suddenly found that it was a little awkward for two people to use the communication magic weapon face to face. Of course, if it is combined with traditional communication spells, silent communication can be achieved.

However, Xia Duo did not blame Ganar, but picked up the communication magic weapon. He saw that the only tiny rune in the crystal ball was constantly flashing at this moment.

About once every two seconds, which means there is a new message; if it is once every second, there are at least three messages; if the frequency is higher, there will naturally be more messages.

Xia Duo has not tested it in detail.

In fact, the mass production plan he proposed is also a bit risky. It has only undergone a simple feasibility test, and he did it all by himself. He is not sure whether there are bugs.

Xia Duo "clicked" on the flashing rune, and the communication device transmitted the pre-received voice information to his ears in the traditional way of communication spells, not directly broadcasting.

"Ganar, this way, you go outside and send me the number one by one at your fastest speed. Don't be afraid of damaging the communication device. This is originally consumed by the test."

After Xia Duo finished speaking, Ganar was stunned for a moment. He didn't expect it to be such a test, but he didn't question it. He quickly took the communication device out.

Immediately afterwards, the runes in Xia Duo's communication device began to flash continuously, and the frequency was getting higher and higher. Seeing this scene, Xia Duo couldn't help but breathe a sigh of relief.

It seems that at least there is no problem with the pre-receiving function in the communication management function of the second-generation communication magic instrument.

In this situation, if he is still using the first-generation communication magic instrument, his mind will probably be filled with Ganar's counting.

This is the case when only one person sends a message. If there are more people, dozens or hundreds of people, his head will probably explode.

It just so happens that the message transmitted by this magic network background communication will not disappear even if it is temporarily blocked, but will always exist in the magic network background fluctuation.

As long as you are negligent and locked by the communication, the previously accumulated messages will all come out at once.

This shows the importance of letting the communication magic instrument pre-receive. Of course, the second-generation communication magic instrument is just starting out after all, and it cannot temporarily store too much information. If there is too much, the previous ones will disappear, leaving only the latest received ones.

"Ganar, stop for a moment." Xia Duo sent a message.

After that, he checked all the information one by one. Sure enough, the numbers starting from 1 had reached more than 30. It may be that the information content was small, and even the 1 had not disappeared.

After all, it is a communication device that can transmit and temporarily store image information. Storing some sound is not a problem.

Then, Xia Duo asked Taling to get a first-generation communication device for Ganal, and then sent a message and said: "Next, use the first-generation communication magic weapon, just like just now, start from 1 and send the message one by one, as fast as you can. "

Strictly speaking, people should use spells to communicate, but that would be too wasteful of manpower. The first-generation communication device is almost the same as people casting spells.

Xia Duo waited for a while, and the runes in the communication device in his hand did not flicker. Only then did he realize that the overly precise locking method of the second-generation communication device had changed the communication between the two parties from "person-to-person" to "human-to-human". It's "communication instrument vs. communication instrument".

At the same time, this communication weapon is also a loophole for itself to avoid detection!

"Well, maybe we can use communication management spells to deal with it."

Xia Duo quickly made up his mind. In fact, he didn't have that much time to change it. It was more important to make money and build the floating city first. Bug fixing and other things could only be done during the next "new machine release". .

Anyway, this is not a fatal flaw. Because of the special nature of the background communication of the Magic Network, it is almost impossible to use this loophole to locate the person who has applied evasion detection. The only way is to determine the existence of the target.

After adjusting his mentality, Xia Duo slightly adjusted the evasion level of the evasion detection spell. Then he received a large amount of information. The runes in the communication weapon in his hand could flash several times a second!

If there were no second-generation communication instruments, he would have been bombarded with information right now.

It seems that Ganal is working hard outside!

Shado thought so, and then summoned Ganal to let him in.