KR20220019342A - Multiple Key Encrypt Algorithm with Mixing Array - Google Patents

Multiple Key Encrypt Algorithm with Mixing Array Download PDF

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Publication number
KR20220019342A
KR20220019342A KR1020200099662A KR20200099662A KR20220019342A KR 20220019342 A KR20220019342 A KR 20220019342A KR 1020200099662 A KR1020200099662 A KR 1020200099662A KR 20200099662 A KR20200099662 A KR 20200099662A KR 20220019342 A KR20220019342 A KR 20220019342A
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South Korea
Prior art keywords
encryption
algorithm
array
ciphertext
key
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KR1020200099662A
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Korean (ko)
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김동호
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김동호
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Priority to KR1020200099662A priority Critical patent/KR20220019342A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/04—Masking or blinding
    • H04L2209/046—Masking or blinding of operations, operands or results of the operations

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)

Abstract

The present invention relates to a multi-key encryption algorithm using mixed array technique. The present invention uses an encryption method using keys of different sizes, which has not been attempted in existing encryption algorithms, a method of overlapping them, and a mixing array method which mixes the extracted ciphertext as an array. Therefore, damage caused by leakage of ciphertext in a network communication process can be prevented, and plaintext derivation using ciphertext and decrypted text cases is also made impossible, so it can be used very effectively.

Description

믹싱 어레이 기법을 이용한 다중키 암호화 알고리즘{Multiple Key Encrypt Algorithm with Mixing Array}Multiple Key Encrypt Algorithm with Mixing Array

본 발명은 믹싱 어레이 기법을 이용한 다중키 암호화 알고리즘에 관한 것으로, 더욱 상세하게는 믹싱 어레이 기법을 통한 파일 난해화와 다중키를 통한 보안성 증가를 통해 암호화 알고리즘의 안전성을 증가시켜 네트워크 통신 시 데이터 스니핑과 같은 해킹을 무력화시키는 믹싱 어레이 기법을 이용한 다중키 암호화 알고리즘에 관한 것이다.The present invention relates to a multi-key encryption algorithm using a mixed array technique, and more particularly, data sniffing during network communication by increasing the security of the encryption algorithm by making files difficult through the mixed array technique and increasing security through multiple keys. It relates to a multi-key encryption algorithm using a mixing array technique that neutralizes hacking such as

일반적으로 암호화 알고리즘은 일정한 크기를 가진 키(key)값을 통해 암호화를 진행하여 수신자가 송신자에게 값이 드러나지 않게 전송을 하기 위해 사용된다. 암호화 알고리즘에는 대칭키, 비대칭키 방식이 존재하지만 최근에는 비교적 안정성이 높은 비대칭키 방식이 상용화되고 있다. 하지만 이러한 비대칭키 방식 또한 점점 성능이 높아지는 연산 장치에 의해 빠르게 무작위 복호화가 가능해지고 다량의 암호문, 복호문 케이스를 통해 키 값이 유출되는 문제가 발생하며 더이상 어떠한 방식도 안전하다고 확신할 수 없게 되었다.In general, the encryption algorithm is used to perform encryption through a key value having a certain size, so that the receiver transmits the value without revealing the value to the sender. There are symmetric key and asymmetric key methods in encryption algorithms, but recently, asymmetric key methods with relatively high stability are being commercialized. However, this asymmetric key method also enables rapid random decryption by the increasingly high-performance computing devices, and there is a problem in that the key value is leaked through a large number of ciphertext and decrypted text cases, and it is no longer certain that any method is safe.

따라서 본 발명은 상기한 종래 기술의 문제점을 해결하기 위해 이루어진 것으로서, 본 발명의 목적은 기존에 시도되지 않았던 SW적 기술을 암호화 알고리즘에 도입하여 암호화 이전의 평문의 유출을 효과적으로 막고, 무작위 대입을 통한 복호화를 불가능하게 만들며 이와 같이 보안성이 향상된 암호화 알고리즘을 제공하는데 있다.Therefore, the present invention has been made to solve the problems of the prior art, and an object of the present invention is to effectively prevent leakage of plaintext prior to encryption by introducing a SW technology that has not been attempted before to the encryption algorithm, and to To make decryption impossible and to provide an encryption algorithm with improved security as described above.

상기한 바와 같은 목적을 달성하기 위해, 본 발명에 따르면, 256 bit 암호화를 1차적으로 진행한 암호문을 DH 알고리즘에 의해 교환된 N, M의 값을 이용하여 M번 만큼 N에 해당하는 크기를 가진 key를 생성해, 즉 무작위 bit 암호화와 반복 암호화를 진행하여 암호화를 진행함으로써 중첩 암호문이 생성되어 해당 암호문의 복호문과의 케이스로 인한 키 유출을 무력화한다. 더욱 자세히는 1차적 암호에 그쳤던 기존의 암호화 알고리즘과 달리 중첩 횟수와 중첩 키 비트 크기를 정하는 값에 의해 보안성이 향상된다는 것을 특징으로 한다.In order to achieve the above object, according to the present invention, the ciphertext that has undergone 256-bit encryption primarily has a size corresponding to N as many as M times using the values of N and M exchanged by the DH algorithm. By generating a key, that is, performing encryption by performing random bit encryption and repeated encryption, a nested ciphertext is generated to neutralize key leakage due to a case with the decrypted text of the ciphertext. In more detail, it is characterized in that the security is improved by the value that determines the number of overlapping and the overlapping key bit size, unlike the existing encryption algorithm, which was limited to primary encryption.

또한 평문의 무작위 대입을 통한 유출을 막기 위해 배열로의 변환 및 혼합과정을 통해 값을 난해화하는 믹싱 어레이 기법을 사용하여 암호화 유출에 따른 무단 복호화 위협성 저하를 특징으로 한다.In addition, in order to prevent leakage through random substitution of plaintext, it features a reduced threat of unauthorized decryption due to encryption leakage by using a mixing array technique that makes values difficult through transformation and mixing into an array.

본 발명에 따른 암호화 알고리즘은 평문의 유출을 효과적으로 막고 파일을 난해화하여 무작위 대입 복호화를 불가능하게 만들 수 있다.The encryption algorithm according to the present invention can effectively prevent the leakage of plaintext and make the file incomprehensible to make random substitution decryption impossible.

또한, 교환된 서로 다른 크기의 키를 통해 암호화함으로써 본 암호화 알고리즘의 보안성을 매우 향상시킬 수 있다.In addition, the security of the present encryption algorithm can be greatly improved by encrypting it using the exchanged keys of different sizes.

도1은 본 발명의 바람직한 실시예에 따른 믹싱 어레이 기법을 이용한 다중키 암호화 알고리즘를 설명하기 위해 나타낸 구조도.1 is a structural diagram illustrating a multi-key encryption algorithm using a mixed array technique according to a preferred embodiment of the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명에 따른 믹싱 어레이 기법을 이용한 다중키 암호화 알고리즘를 설명하기 위해 나타낸 구조도이다.1 is a structural diagram illustrating a multi-key encryption algorithm using a mixed array technique according to the present invention.

도1을 참조하면 송신자 pc에서 DH 알고리즘(70)에 의해 교환된 키, N, M의 값을 기반으로 256 bit 암호화(10)을 통해 1차적으로 암호화된 평문을 추출한다. 이후 앞서 교환하였던 값을 이용하여 N의 크기에 해당하는 키를 생성하여 무작위 bit 암호화(20)를 반복 암호화와 중첩하여 결과적으로 1 + M번 연산된 암호문을 출력한다. 이후 해당 암호문을 배열로 저장해 무작위로 섞는 믹싱 어레이 기법(40)을 거쳐 파일 속 문자들을 난해화한 뒤 HTML 변환(50)을 통해 송수신 파일의 형태를 갖춘다.Referring to FIG. 1, based on the values of the key, N, and M exchanged by the DH algorithm 70 in the sender pc, the plaintext encrypted primarily through 256-bit encryption 10 is extracted. After that, a key corresponding to the size of N is generated using the previously exchanged value, and the random bit encryption 20 is overlapped with the repeated encryption, and as a result, the ciphertext calculated 1 + M times is output. After that, the ciphertext is stored in an array and the characters in the file are deciphered through a mixing array technique (40) that randomly mixes the cipher text, and then forms a transmission/reception file through HTML conversion (50).

이후 네트워크를 통해 전송하면 수신자 pc에서 DH 알고리즘(70)에서 교환된 정보를 바탕으로 복호화를 진행하여 평문을 얻게 된다.After transmission through the network, the receiver pc performs decoding based on the information exchanged in the DH algorithm 70 to obtain a plaintext.

본 발명은 상술한 실시예에 한정되지 않으며, 첨부된 청구범위에서 알 수 있는 바와 같이 본 발명이 속한 분야의 통상의 지식을 가진 자에 변형이 가능하고 이러한 변형은 본 발명의 범위에 속한다.The present invention is not limited to the above-described embodiments, and as can be seen from the appended claims, modifications can be made by those skilled in the art to which the present invention pertains, and such modifications are within the scope of the present invention.

10: 256 bit 암호화
20: 무작위 bit 암호화
30: 반복 암호화
40: 믹싱 어레이
50: HTML 변환
60: 복호화
70: DH 알고리즘 통신10: 256 bit encryption
20: random bit encryption
30: Repeat Encryption
40: mixing array
50: HTML Conversion
60: decryption
70: DH algorithm communication

Claims (4)

암호화 알고리즘에 있어서,
서로 다른 크기를 가진 키를 이용하여 암호화를 진행하는 방식의 알고리즘(20);
다른 크기의 키를 중첩적으로 사용하여 암호화를 진행하는 방식의 알고리즘(30);
암호화된 파일을 배열로서 변환하여 난해화하는 방식의 알고리즘(40);
을 포함하는 것을 특징으로 하는 믹싱 어레이 기법을 이용한 다중키 암호화 알고리즘.In the encryption algorithm,
an algorithm 20 for performing encryption using keys having different sizes;
an algorithm 30 for performing encryption by using keys of different sizes overlappingly;
Algorithm 40 for converting the encrypted file into an array to make it difficult to understand;
A multi-key encryption algorithm using a mixing array technique, characterized in that it comprises a. 제 1항에 있어서,
키를 통한 복호화 시 키의 크기를 나타내는 단위인 bit가 서로 다른 키의 연산을 통해 암호화를 진행하는 것을 특징으로 하는 암호화 알고리즘.The method of claim 1,
An encryption algorithm, characterized in that when decrypting using a key, encryption is performed through the operation of keys in which bits, which are units representing the size of the key, are different. 제 2항에 있어서,
제 1항에 기재된 방식을 중첩적으로 연산하여 암호문을 도출해내는 것을 특징으로 하는 암호화 알고리즘.3. The method of claim 2,
An encryption algorithm, characterized in that the ciphertext is derived by overlapping the method described in claim 1. 제 3항에 있어서,
도출된 암호문을 배열로써 저장하여 무작위로 배열을 섞어 난해화하는 것을 특징으로 하는 암호화 알고리즘.4. The method of claim 3,
An encryption algorithm characterized in that the derived ciphertext is stored as an array, and the array is randomly mixed to make it difficult.
KR1020200099662A 2020-08-10 2020-08-10 Multiple Key Encrypt Algorithm with Mixing Array KR20220019342A (en)

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