The Importance of Hybrid Cryptography

Oct 13, 2025 by pynkocean.com 127 views

Introduction

In today's digital era, sending information through text messages is often threatened by third parties who intend to access or change the contents of the message. To protect messages from this threat, cryptography is an effective solution. Cryptography is a technique used to encrypt files so that it is difficult to understand by those who are not entitled. One method that can be used is hybrid cryptography, which combines symmetrical and asymmetrical algorithms to secure data more efficiently. This study focuses on the use of the Variably Modified Permutation and Composition (VMPC) algorithm as a symmetrical algorithm and RSA multi-faculty algorithm (Rivest, Shamir, Adleman) as an asymmetrical algorithm.

The Importance of Hybrid Cryptography

Hybrid cryptography is a technique that combines the strengths of both symmetrical and asymmetrical algorithms to provide a high level of security for data. The symmetrical algorithm, such as VMPC, is used to encrypt the data, while the asymmetrical algorithm, such as RSA, is used to secure the key from the symmetrical algorithm. This approach provides a high level of security and efficiency, making it an ideal solution for securing text files.

Advantages of Hybrid Cryptography

One of the advantages of hybrid cryptography is its ability to combine the encryption speed of the symmetrical algorithm with a high level of security of the asymmetrical algorithm. In this study, the experimental results showed that the VMPC and RSA multi-factor algorithms were able to protect text files and locks well, thereby ensuring the integrity of data. The use of hybrid cryptography also provides a high level of flexibility, as it can be used to secure a wide range of data types, including text files, images, and videos.

Experimental Results

In this study, 12 encryption trials were carried out with ciphertext length between 8000 to 160000 characters. The average time required for the encryption process is around 4146 milliseconds. Meanwhile, the decryption process in 12 experiments shows an average time of 5152 milliseconds. This shows that the time required for encryption and decryption is directly proportional to the length of the processed file character. That is, the longer the character of the text file, the greater the time needed to complete the encryption and decryption process.

Analysis of Research Results

Seeing the results of the research above, it can be concluded that the application of hybrid cryptography with a combination of the VMPC and RSA multi-factor algorithm is very effective in securing text files. With the increasing need for data security, especially in the context of digital communication, the use of this method can be a useful solution. More guaranteed information security will also encourage users to more trust in conducting transactions and data exchange online.

Applications of Hybrid Cryptography

The application of hybrid cryptography with a combination of the VMPC and RSA multi-factor algorithm can be applied in various fields, including online banking, e-commerce, and digital communication platforms. This method can provide a high level of security and efficiency, making it an ideal solution for securing sensitive information. The use of hybrid cryptography can also provide a high level of flexibility, as it can be used to secure a wide range of data types.

Conclusion

Hybrid cryptography that combines the VMPC and RSA multi-factor algorithm is the right and efficient method for securing text files from third-party threats. With testing that shows stability and reliability in the encryption and decryption process, this method not only protects information but also provides trust to users in digital communication. As technology develops and increasing the need for data security, further research and the application of this algorithm are very important to maintain the integrity and confidentiality of information.

Future Research Directions

Further research is needed to improve the efficiency and security of the VMPC and RSA multi-factor algorithm. This can be achieved by optimizing the algorithm to reduce the time required for encryption and decryption. Additionally, the use of hybrid cryptography can be explored in various applications, including online banking, e-commerce, and digital communication platforms.

Limitations of the Study

This study has several limitations. Firstly, the study only focused on the use of the VMPC and RSA multi-factor algorithm, and did not explore other hybrid cryptography algorithms. Secondly, the study only tested the algorithm on text files, and did not explore its application on other data types. Finally, the study only tested the algorithm on a small sample size, and did not explore its scalability.

Recommendations for Future Research

Based on the findings of this study, several recommendations can be made for future research. Firstly, further research is needed to improve the efficiency and security of the VMPC and RSA multi-factor algorithm. This can be achieved by optimizing the algorithm to reduce the time required for encryption and decryption. Secondly, the use of hybrid cryptography can be explored in various applications, including online banking, e-commerce, and digital communication platforms. Finally, the study can be replicated on a larger sample size to explore the scalability of the algorithm.

References

Rivest, R. L., Shamir, A., & Adleman, L. (1978). A method for obtaining digital signatures and public-key cryptosystems. Communications of the ACM, 21(2), 120-126.
Diffie, W., & Hellman, M. E. (1976). New directions in cryptography. IEEE Transactions on Information Theory, 22(6), 644-654.
Stinson, D. R. (1995). Cryptography: Theory and practice. CRC Press.

Appendices

Appendix A: Experimental setup and methodology
Appendix B: Results of the experimental trials
Appendix C: Discussion of the results and implications for future research
Frequently Asked Questions (FAQs) about Hybrid Cryptography with VMPC and Multi-Factor RSA Algorithms ====================================================================================

Q: What is hybrid cryptography?

A: Hybrid cryptography is a technique that combines the strengths of both symmetrical and asymmetrical algorithms to provide a high level of security for data. The symmetrical algorithm, such as VMPC, is used to encrypt the data, while the asymmetrical algorithm, such as RSA, is used to secure the key from the symmetrical algorithm.

Q: What is the VMPC algorithm?

A: The VMPC (Variably Modified Permutation and Composition) algorithm is a symmetrical algorithm that is used to encrypt data. It is a type of block cipher that uses a combination of permutation and composition to encrypt data.

Q: What is the RSA multi-factor algorithm?

A: The RSA (Rivest, Shamir, Adleman) multi-factor algorithm is an asymmetrical algorithm that is used to secure the key from the symmetrical algorithm. It is a type of public-key cryptosystem that uses a combination of prime numbers and modular arithmetic to secure data.

Q: How does hybrid cryptography work?

A: Hybrid cryptography works by using the VMPC algorithm to encrypt the data, and then using the RSA multi-factor algorithm to secure the key from the VMPC algorithm. This provides a high level of security and efficiency, making it an ideal solution for securing sensitive information.

Q: What are the advantages of hybrid cryptography?

A: The advantages of hybrid cryptography include:

High level of security: Hybrid cryptography provides a high level of security by combining the strengths of both symmetrical and asymmetrical algorithms.
Efficiency: Hybrid cryptography is efficient because it uses a combination of algorithms to encrypt and decrypt data.
Flexibility: Hybrid cryptography can be used to secure a wide range of data types, including text files, images, and videos.

Q: What are the limitations of hybrid cryptography?

A: The limitations of hybrid cryptography include:

Complexity: Hybrid cryptography can be complex to implement and use.
Scalability: Hybrid cryptography may not be scalable to large amounts of data.
Compatibility: Hybrid cryptography may not be compatible with all systems and devices.

Q: How can I implement hybrid cryptography in my application?

A: To implement hybrid cryptography in your application, you will need to:

Choose a suitable symmetrical algorithm, such as VMPC.
Choose a suitable asymmetrical algorithm, such as RSA.
Use a combination of the two algorithms to encrypt and decrypt data.
Secure the key from the symmetrical algorithm using the asymmetrical algorithm.

Q: What are the best practices for implementing hybrid cryptography?

A: The best practices for implementing hybrid cryptography include:

Using a secure random number generator to generate keys.
Using a secure hash function to hash data.
Using a secure encryption algorithm to encrypt data.
Using a secure decryption algorithm to decrypt data.

Q: What are the future directions for hybrid cryptography?

A: The future directions for hybrid cryptography include:

Improving the efficiency and security of hybrid cryptography.
Exploring new applications for hybrid cryptography.
Developing new hybrid cryptography algorithms.

Q: What are the references for hybrid cryptography?

A: The references for hybrid cryptography include:

Rivest, R. L., Shamir, A., & Adleman, L. (1978). A method for obtaining digital signatures and public-key cryptosystems. Communications of the ACM, 21(2), 120-126.
Diffie, W., & Hellman, M. E. (1976). New directions in cryptography. IEEE Transactions on Information Theory, 22(6), 644-654.
Stinson, D. R. (1995). Cryptography: Theory and practice. CRC Press.

Q: What are the appendices for hybrid cryptography?

A: The appendices for hybrid cryptography include:

Appendix A: Experimental setup and methodology.
Appendix B: Results of the experimental trials.
Appendix C: Discussion of the results and implications for future research.