Combining RSA Cryptography and LSB Steganography

Oct 13, 2025 by talynt.org 107 views

Implementation of Image Security using the Elliptic Cryptography RSA Algorithm and the Least Significant Bit Algorithm

In today's digital era, data security has become a major concern. The rapid development of technology has increased the risk of unsafe data, which can be stolen or manipulated by unauthorized parties. To overcome this problem, effective methods are needed, such as cryptography and steganography. In this study, we will discuss the implementation of image security using the Elliptic Cryptography RSA algorithm and the Least Significant Bit algorithm.

Data Security: A Crucial Aspect of Modern Technology

Data exchange is crucial in the era of modern technology. The two main factors that need to be considered in this process are speed and security. The rapid development of technology increases the risk of unsafe data, which can be stolen or manipulated by unauthorized parties. To overcome this problem, effective methods are needed, such as cryptography and steganography.

Cryptography: The RSA Algorithm

The Rivest-Shamir-Adleman (RSA) algorithm, which is an asymmetrical cryptographic algorithm, uses two prime numbers to produce public keys and private keys. This key is used to encrypt data, so only those who have private keys that can access them. The concept of Elliptic Curve Cryptography (ECC) plays a role in determining the initial value (seed) in the generation of prime numbers RSA, by utilizing the addition and multiplication operations on the elliptic curve. ECC offers high security with shorter keys compared to conventional cryptographic algorithms.

Steganography: The Least Significant Bit Algorithm

Meanwhile, the Least Significant Bit (LSB) algorithm is one of the steganographic techniques that utilizes the last bit in a cover to insert a message bit. This technique allows the hiding of confidential information in the image file without changing the visualization of the file significantly. The parameters commonly used in Steganography evaluation include the mean square error (MSE) which measures the difference between the original image and the image that has been inserted, peak signal to noise ratio (PSNR) which shows the quality of the image of the steganography, and the running time that measures the time required for the process of inserting and extraction of messages.

Combining RSA Cryptography and LSB Steganography

This study shows that the combination of RSA cryptography and LSB steganography is able to hide image files in other image files and return it to its original state. The average running time for the message insertion process reaches 3090,167 MS, while the message extraction reaches 2917,167 MS. This proves that this method is effective in increasing image data security with a combination of encryption and hiding information.

Benefits of Combining RSA Cryptography and LSB Steganography

The use of RSA cryptography and LSB steganography in combination provides a comprehensive approach in securing image data. RSA cryptography ensures that only legitimate parties can access image data, while LSB steganography hides the existence of encrypted image data. By utilizing this technology, we can increase data security in a dynamic and risky digital era.

In conclusion, the implementation of image security using the Elliptic Cryptography RSA algorithm and the Least Significant Bit algorithm is a promising approach in securing image data. The combination of RSA cryptography and LSB steganography provides a comprehensive approach in securing image data, ensuring that only legitimate parties can access image data, while hiding the existence of encrypted image data. This technology can increase data security in a dynamic and risky digital era.

Future work can focus on improving the efficiency of the RSA algorithm and the LSB algorithm, as well as exploring other steganographic techniques that can be combined with RSA cryptography. Additionally, the study can be extended to other types of data, such as text and audio, to evaluate the effectiveness of the combination of RSA cryptography and LSB steganography in securing different types of data.

Based on the results of this study, we recommend the use of the combination of RSA cryptography and LSB steganography in securing image data. This technology can provide a comprehensive approach in securing image data, ensuring that only legitimate parties can access image data, while hiding the existence of encrypted image data. We also recommend further research on improving the efficiency of the RSA algorithm and the LSB algorithm, as well as exploring other steganographic techniques that can be combined with RSA cryptography.

This study has several limitations. Firstly, the study only focuses on image data, and further research is needed to evaluate the effectiveness of the combination of RSA cryptography and LSB steganography in securing other types of data. Secondly, the study only uses a small dataset, and further research is needed to evaluate the effectiveness of the combination of RSA cryptography and LSB steganography in securing larger datasets. Finally, the study only uses a single steganographic technique, and further research is needed to evaluate the effectiveness of combining RSA cryptography with other steganographic techniques.

Q: What is the main goal of this study?

A: The main goal of this study is to implement image security using the Elliptic Cryptography RSA algorithm and the Least Significant Bit algorithm, and to evaluate the effectiveness of this approach in securing image data.

Q: What is the Elliptic Cryptography RSA algorithm?

A: The Elliptic Cryptography RSA algorithm is an asymmetrical cryptographic algorithm that uses two prime numbers to produce public keys and private keys. This key is used to encrypt data, so only those who have private keys that can access them.

Q: What is the Least Significant Bit algorithm?

A: The Least Significant Bit algorithm is a steganographic technique that utilizes the last bit in a cover to insert a message bit. This technique allows the hiding of confidential information in the image file without changing the visualization of the file significantly.

Q: How does the combination of RSA cryptography and LSB steganography work?

A: The combination of RSA cryptography and LSB steganography works by first encrypting the image data using the RSA algorithm, and then hiding the encrypted data in another image file using the LSB algorithm.

Q: What are the benefits of combining RSA cryptography and LSB steganography?

A: The benefits of combining RSA cryptography and LSB steganography include:

Ensuring that only legitimate parties can access image data
Hiding the existence of encrypted image data
Increasing data security in a dynamic and risky digital era

Q: What are the limitations of this study?

A: The limitations of this study include:

Only focusing on image data
Using a small dataset
Only using a single steganographic technique

Q: What are the future directions of this research?

A: The future directions of this research include:

Improving the efficiency of the RSA algorithm and the LSB algorithm
Exploring other steganographic techniques that can be combined with RSA cryptography
Evaluating the effectiveness of the combination of RSA cryptography and LSB steganography in securing other types of data

Q: What are the recommendations for implementing image security using the Elliptic Cryptography RSA algorithm and the Least Significant Bit algorithm?

A: The recommendations for implementing image security using the Elliptic Cryptography RSA algorithm and the Least Significant Bit algorithm include:

Using the combination of RSA cryptography and LSB steganography to secure image data
Improving the efficiency of the RSA algorithm and the LSB algorithm
Exploring other steganographic techniques that can be combined with RSA cryptography

Q: What are the implications of this research for data security in a dynamic and risky digital era?

A: The implications of this research for data security in a dynamic and risky digital era include:

Increasing data security by using a combination of encryption and steganography
Ensuring that only legitimate parties can access data
Hiding the existence of encrypted data

Q: What are the future applications of this research?

A: The future applications of this research include:

Securing other types of data, such as text and audio
Implementing this approach in real-world applications, such as secure communication and data storage
Exploring other areas of research, such as artificial intelligence and machine learning.