Symmetric Key Distribution Model Using RSA-CRT Method

The problems that arise with the implementation

information transmission of images are the large data size and

the importance of information security. Both symmetric and

asymmetric cryptography can be used to meet the security

requirements of the messages being sent. A symmetric

cryptosystem is faster, however, the distribution of the secret

key to the recipient is vulnerable to security risks. While

asymmetric cryptography is slower, it does not need special

treatment for key distribution. Hence, the security risks

associated with the distribution of symmetric keys can be

overcome using asymmetric cryptography. Single asymmetric

key encryption only provides confidentiality; it does not

provide authenticity and integrity. In this paper, we propose a

symmetric key distribution model that meets the requirements

of confidentiality, authentication, and integrity using the Rivest

Shamir Adleman (RSA)-Chinese Remainder Theorem (CRT)

method. The proposed model consists of two stages of

asymmetric cryptographic processes. The first step is to

provide authentication and integrity to the symmetric key by

decrypting the symmetric key using the sender's private key,

the algorithm used is RSA modified with CRT. The second

stage secures the symmetric key that has been authenticated by

encrypting it using the recipient's public key using the RSA

algorithm. Meanwhile, to accelerate the process of symmetric

key distribution is done by reducing the size of

CipherKey_Signature which is the result of the authenticationencryption

process by converting from big integers to strings.

Aptitudini: Criptografie, Java, JavaScript, Java Spring, JavaFX

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Hi There, I am phd level expert in cryptography and its implementation. I can implement RSA key sharing client server method and any other requirements in C, C# and Python. just share details. Thanks

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