2 research outputs found

    On quantum cryptography

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    In the late twentieth century, human race entered the era of information technology (IT). The IT industry, which deals with the production, processing, storage and transmission of information, has become an integral part of the global economic system, a completely independent and significant sector of the economy. The dependence of the modern society on information technologies is so great that omissions in information systems may lead to significant incidents. Telecommunications are the key information technology industry. However, information is very susceptible to various types of abuse during transmission. The units for data storage and processing can be physically protected from anyone wishing harm, but this does not hold true for the communication lines that span hundreds or thousands of kilometers and are virtually impossible to protect. Therefore, the problem of information protection in the field of telecommunications is highly significant. Cryptology, particularly cryptography, deals with this issue. Quantum cryptography is a relatively new field ensuring safe communication between the sender and the recipient using the laws of quantum physics. This paper seeks to address the principles of the quantum distribution of a key for information encryption and the fundamental problems arising from the execution.ΠšΡ€Π°Ρ˜Π΅ΠΌ двадСсСтог Π²Π΅ΠΊΠ° човСчанство je ΡƒΡˆΠ»ΠΎ Ρƒ Π΅Ρ€Ρƒ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½ΠΈΡ… Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΡ˜Π°. ИВ ΠΈΠ½Π΄ΡƒΡΡ‚Ρ€ΠΈΡ˜Π°, која сС Π±Π°Π²ΠΈ ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΡšΠΎΠΌ, ΠΎΠ±Ρ€Π°Π΄ΠΎΠΌ, ΡΠΊΠ»Π°Π΄ΠΈΡˆΡ‚Π΅ΡšΠ΅ΠΌ ΠΈ прСносом ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡ˜Π°, постала јС саставни Π΄eΠΎ Π³Π»ΠΎΠ±Π°Π»Π½ΠΎΠ³ Скономског систСма, ΠΏΠΎΡ‚ΠΏΡƒΠ½ΠΎ нСзависан ΠΈ ΠΏΡ€ΠΈΠ»ΠΈΡ‡Π½ΠΎ Π·Π½Π°Ρ‡Π°Ρ˜Π°Π½ сСктор ΠΏΡ€ΠΈΠ²Ρ€eΠ΄Π΅. Зависност саврСмСног Π΄Ρ€ΡƒΡˆΡ‚Π²Π° ΠΎΠ΄ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½ΠΈΡ… Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΡ˜Π° јС Ρ‚ΠΎΠ»ΠΈΠΊΠΎ Π²Π΅Π»ΠΈΠΊΠ° Π΄Π° пропусти Ρƒ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½ΠΈΠΌ систСмима ΠΌΠΎΠ³Ρƒ довСсти Π΄ΠΎ Π·Π½Π°Ρ‡Π°Ρ˜Π½ΠΈΡ… ΠΈΠ½Ρ†ΠΈΠ΄Π΅Π½Π°Ρ‚Π°. Π’Π΅Π»Π΅ΠΊΠΎΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΡ˜e су ΠΊΡ™ΡƒΡ‡Π½Π° ΠΈΠ½Π΄ΡƒΡΡ‚Ρ€ΠΈΡ˜Π° ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½ΠΈΡ… Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΡ˜Π°. ΠœΠ΅Ρ’ΡƒΡ‚ΠΈΠΌ, ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡ˜Π΅ су Ρ‚ΠΎΠΊΠΎΠΌ транспорта Π²Π΅ΠΎΠΌΠ° осСтљивС Π½Π° Ρ€Π°Π·Π½Π΅ врстС Π·Π»ΠΎΡƒΠΏΠΎΡ‚Ρ€Π΅Π±Π°. ΠˆΠ΅Π΄ΠΈΠ½ΠΈΡ†Π΅ Π·Π° ΡΠΊΠ»Π°Π΄ΠΈΡˆΡ‚Π΅ΡšΠ΅ ΠΈ ΠΎΠ±Ρ€Π°Π΄Ρƒ ΠΏΠΎΠ΄Π°Ρ‚Π°ΠΊΠ° ΠΌΠΎΠ³Ρƒ Π±ΠΈΡ‚ΠΈ Ρ„ΠΈΠ·ΠΈΡ‡ΠΊΠΈ Π·Π°ΡˆΡ‚ΠΈΡ›Π΅Π½Π΅ ΠΎΠ΄ Π½Π΅Π΄ΠΎΠ±Ρ€ΠΎΠ½Π°ΠΌΠ΅Ρ€Π½ΠΈΡ…, ΡˆΡ‚ΠΎ сС Π½Π΅ ΠΌΠΎΠΆΠ΅ Ρ€Π΅Ρ›ΠΈ Π·Π° ΠΊΠΎΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π΅ линијС којС сС ΠΏΡ€ΠΎΡ‚Π΅ΠΆΡƒ Π½Π° стотинС ΠΈΠ»ΠΈ Ρ…ΠΈΡ™Π°Π΄Π΅ ΠΊΠΈΠ»ΠΎΠΌΠ΅Ρ‚Π°Ρ€Π° ΠΈ којС јС Π³ΠΎΡ‚ΠΎΠ²ΠΎ Π½Π΅ΠΌΠΎΠ³ΡƒΡ›Π΅ Π·Π°ΡˆΡ‚ΠΈΡ‚ΠΈΡ‚ΠΈ. Π‘Ρ‚ΠΎΠ³Π° јС ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌ Π·Π°ΡˆΡ‚ΠΈΡ‚Π΅ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡ˜Π° Ρƒ сфСри Ρ‚Π΅Π»Π΅ΠΊΠΎΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΡ˜Π° Π²Π΅ΠΎΠΌΠ° Π·Π½Π°Ρ‡Π°Ρ˜Π°Π½. ΠšΡ€ΠΈΠΏΡ‚ΠΎΠ»ΠΎΠ³ΠΈΡ˜Π° ΠΊΠ°ΠΎ Π½Π°ΡƒΠΊΠ° ΠΈ посСбно њСн Π΄Π΅ΠΎ ΠΊΡ€ΠΈΠΏΡ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΡ˜Π° ΡƒΠΏΡ€Π°Π²ΠΎ сС Π±Π°Π²Π΅ ΠΎΠ²ΠΎΠΌ ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ°Ρ‚ΠΈΠΊΠΎΠΌ. ΠšΠ²Π°Π½Ρ‚Π½Π° ΠΊΡ€ΠΈΠΏΡ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΡ˜Π° јС Ρ€Π΅Π»Π°Ρ‚ΠΈΠ²Π½ΠΎ новија област која сС Π±Π°Π²ΠΈ ΠΎΠ±Π΅Π·Π±Π΅Ρ’Π΅ΡšΠ΅ΠΌ сигурнС ΠΊΠΎΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΡ˜Π΅ ΠΈΠ·ΠΌΠ΅Ρ’Ρƒ ΠΏΠΎΡˆΠΈΡ™Π°ΠΎΡ†Π° ΠΈ ΠΏΡ€ΠΈΠΌΠ°ΠΎΡ†Π° ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡ˜Π΅, користСћи Π·Π°ΠΊΠΎΠ½Π΅ ΠΊΠ²Π°Π½Ρ‚Π½Π΅ Ρ„ΠΈΠ·ΠΈΠΊΠ΅. Π¦ΠΈΡ™ Ρ€Π°Π΄Π° јС Π΄Π° сС ΡƒΠΏΠΎΠ·Π½Π°ΠΌΠΎ са ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΠΈΠΌΠ° ΠΊΠ²Π°Π½Ρ‚Π½Π΅ Π΄ΠΈΡΡ‚Ρ€ΠΈΠ±ΡƒΡ†ΠΈΡ˜Π΅ ΠΊΡ™ΡƒΡ‡Π° Π·Π° ΠΊΠΎΠ΄ΠΈΡ€Π°ΡšΠ΅ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡ˜Π° ΠΈ основним ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠΈΠΌΠ° који сС Ρ˜Π°Π²Ρ™Π°Ρ˜Ρƒ ΠΏΡ€ΠΈ њСговој Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΡ˜ΠΈ

    On quantum cryptography

    Get PDF
    In the late twentieth century, human race entered the era ofinformation technology (IT). The IT industry, which deals with the production,processing, storage and transmission of information, has become an integralpart of the global economic system, a completely independent and significantsector of the economy. The dependence of the modern society on informationtechnologies is so great that omissions in information systems may lead tosignificant incidents. Telecommunications are the key information technologyindustry. However, information is very susceptible to various types of abuseduring transmission. The units for data storage and processing can bephysically protected from anyone wishing harm, but this does not hold truefor the communication lines that span hundreds or thousands of kilometersand are virtually impossible to protect. Therefore, the problem of informationprotection in the field of telecommunications is highly significant. Cryptology,particularly cryptography, deals with this issue. Quantum cryptography is arelatively new field ensuring safe communication between the sender and therecipient using the laws of quantum physics. This paper seeks to address theprinciples of the quantum distribution of a key for information encryption andthe fundamental problems arising from the execution.ΠšΡ€Π°Ρ˜Π΅ΠΌ двадСсСтог Π²Π΅ΠΊΠ° човСчанство je ΡƒΡˆΠ»ΠΎ Ρƒ Π΅Ρ€Ρƒ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½ΠΈΡ… Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΡ˜Π°. ИВ ΠΈΠ½Π΄ΡƒΡΡ‚Ρ€ΠΈΡ˜Π°, која сС Π±Π°Π²ΠΈ ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΡšΠΎΠΌ, ΠΎΠ±Ρ€Π°Π΄ΠΎΠΌ,ΡΠΊΠ»Π°Π΄ΠΈΡˆΡ‚Π΅ΡšΠ΅ΠΌ ΠΈ прСносом ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡ˜Π°, постала јС саставни Π΄eΠΎ глобалногСкономског систСма, ΠΏΠΎΡ‚ΠΏΡƒΠ½ΠΎ нСзависан ΠΈ ΠΏΡ€ΠΈΠ»ΠΈΡ‡Π½ΠΎ Π·Π½Π°Ρ‡Π°Ρ˜Π°Π½ сСктор ΠΏΡ€ΠΈΠ²Ρ€eΠ΄Π΅. Зависност саврСмСног Π΄Ρ€ΡƒΡˆΡ‚Π²Π° ΠΎΠ΄ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½ΠΈΡ… Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΡ˜Π° јС Ρ‚ΠΎΠ»ΠΈΠΊΠΎΠ²Π΅Π»ΠΈΠΊΠ° Π΄Π° пропусти Ρƒ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½ΠΈΠΌ систСмима ΠΌΠΎΠ³Ρƒ довСсти Π΄ΠΎ Π·Π½Π°Ρ‡Π°Ρ˜Π½ΠΈΡ… ΠΈΠ½Ρ†ΠΈΠ΄Π΅Π½Π°Ρ‚Π°. Π’Π΅Π»Π΅ΠΊΠΎΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΡ˜e су ΠΊΡ™ΡƒΡ‡Π½Π° ΠΈΠ½Π΄ΡƒΡΡ‚Ρ€ΠΈΡ˜Π° ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½ΠΈΡ…Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΡ˜Π°. ΠœΠ΅Ρ’ΡƒΡ‚ΠΈΠΌ, ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡ˜Π΅ су Ρ‚ΠΎΠΊΠΎΠΌ транспорта Π²Π΅ΠΎΠΌΠ° осСтљивСна Ρ€Π°Π·Π½Π΅ врстС Π·Π»ΠΎΡƒΠΏΠΎΡ‚Ρ€Π΅Π±Π°. ΠˆΠ΅Π΄ΠΈΠ½ΠΈΡ†Π΅ Π·Π° ΡΠΊΠ»Π°Π΄ΠΈΡˆΡ‚Π΅ΡšΠ΅ ΠΈ ΠΎΠ±Ρ€Π°Π΄Ρƒ ΠΏΠΎΠ΄Π°Ρ‚Π°ΠΊΠ°ΠΌΠΎΠ³Ρƒ Π±ΠΈΡ‚ΠΈ Ρ„ΠΈΠ·ΠΈΡ‡ΠΊΠΈ Π·Π°ΡˆΡ‚ΠΈΡ›Π΅Π½Π΅ ΠΎΠ΄ Π½Π΅Π΄ΠΎΠ±Ρ€ΠΎΠ½Π°ΠΌΠ΅Ρ€Π½ΠΈΡ…, ΡˆΡ‚ΠΎ сС Π½Π΅ ΠΌΠΎΠΆΠ΅ Ρ€Π΅Ρ›ΠΈ Π·Π° ΠΊΠΎΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΠΎΠ½Π΅ линијС којС сС ΠΏΡ€ΠΎΡ‚Π΅ΠΆΡƒ Π½Π° стотинС ΠΈΠ»ΠΈ Ρ…ΠΈΡ™Π°Π΄Π΅ ΠΊΠΈΠ»ΠΎΠΌΠ΅Ρ‚Π°Ρ€Π° икојС јС Π³ΠΎΡ‚ΠΎΠ²ΠΎ Π½Π΅ΠΌΠΎΠ³ΡƒΡ›Π΅ Π·Π°ΡˆΡ‚ΠΈΡ‚ΠΈΡ‚ΠΈ. Π‘Ρ‚ΠΎΠ³Π° јС ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌ Π·Π°ΡˆΡ‚ΠΈΡ‚Π΅ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡ˜Π°Ρƒ сфСри Ρ‚Π΅Π»Π΅ΠΊΠΎΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΡ˜Π° Π²Π΅ΠΎΠΌΠ° Π·Π½Π°Ρ‡Π°Ρ˜Π°Π½. ΠšΡ€ΠΈΠΏΡ‚ΠΎΠ»ΠΎΠ³ΠΈΡ˜Π° ΠΊΠ°ΠΎ Π½Π°ΡƒΠΊΠ° ΠΈ посСбно њСн Π΄Π΅ΠΎ ΠΊΡ€ΠΈΠΏΡ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΡ˜Π° ΡƒΠΏΡ€Π°Π²ΠΎ сС Π±Π°Π²Π΅ ΠΎΠ²ΠΎΠΌ ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ°Ρ‚ΠΈΠΊΠΎΠΌ. ΠšΠ²Π°Π½Ρ‚Π½Π°ΠΊΡ€ΠΈΠΏΡ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΡ˜Π° јС Ρ€Π΅Π»Π°Ρ‚ΠΈΠ²Π½ΠΎ новија област која сС Π±Π°Π²ΠΈ ΠΎΠ±Π΅Π·Π±Π΅Ρ’Π΅ΡšΠ΅ΠΌ ΡΠΈΠ³ΡƒΡ€Π½Π΅ΠΊΠΎΠΌΡƒΠ½ΠΈΠΊΠ°Ρ†ΠΈΡ˜Π΅ ΠΈΠ·ΠΌΠ΅Ρ’Ρƒ ΠΏΠΎΡˆΠΈΡ™Π°ΠΎΡ†Π° ΠΈ ΠΏΡ€ΠΈΠΌΠ°ΠΎΡ†Π° ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡ˜Π΅, користСћи Π·Π°ΠΊΠΎΠ½Π΅ ΠΊΠ²Π°Π½Ρ‚Π½Π΅ Ρ„ΠΈΠ·ΠΈΠΊΠ΅. Π¦ΠΈΡ™ Ρ€Π°Π΄Π° јС Π΄Π° сС ΡƒΠΏΠΎΠ·Π½Π°ΠΌΠΎ са ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΠΈΠΌΠ° ΠΊΠ²Π°Π½Ρ‚Π½Π΅Π΄ΠΈΡΡ‚Ρ€ΠΈΠ±ΡƒΡ†ΠΈΡ˜Π΅ ΠΊΡ™ΡƒΡ‡Π° Π·Π° ΠΊΠΎΠ΄ΠΈΡ€Π°ΡšΠ΅ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡ˜Π° ΠΈ основним ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠΈΠΌΠ° који сС Ρ˜Π°Π²Ρ™Π°Ρ˜Ρƒ ΠΏΡ€ΠΈ њСговој Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΡ˜ΠΈ.Serbian version: [http://cer.ihtm.bg.ac.rs/handle/123456789/3472
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