AhmedAlaa2024/RSA-Toolkit-Comprehensive-Encryption-and-Decryption-in-C

My C-based RSA encryption and decryption tool is an all-in-one solution, featuring stress-testing and performance analysis tools. Brute-force attacks, including prime factorization, have been thwarted, and secure data encryption and decryption application have been created, employing socket programming for seamless communication with a server.

RSA-Toolkit-Comprehensive-Encryption-and-Decryption-in-C

My C-based RSA encryption and decryption tool is an all-in-one solution, featuring stress-testing and performance analysis tools. Brute-force attacks, including prime factorization, have been thwarted, and secure data encryption and decryption application have been created, employing socket programming for seamless communication with a server.

How the algorithm works?

1. Using the published public key (e) of the receiver, the sender decrypt the message (plaintext) to the ciphertext (what will be send): C = E(e, M)

2. Using the private key (d) of the receiver, the receiver decrypt the message: M = E(d, M)

3. Each party should publish it public key (e) and (n) which is the product of the 2 very long prime numbers used to generate the keys (p, q)

RSA Toolkit APIs

void RSA_Key_Generate(RSA_KEY_t *key, int nbits);
void RSA_free(RSA_KEY_t *key);
void RSA_Key_print(RSA_KEY_t *key);
void encrypt(mpz_t m, RSA_KEY_t *key, mpz_t c);
void decrypt(mpz_t c, RSA_KEY_t *key, mpz_t m);
int encode(char *plainText, char*** cipherText, int n);
void decode(char*** cipherText, char** plainText, int n, int nBlocks);

int Encrypt(char *plainText, RSA_KEY_t *key, char **ciphertext, int blockSize);
int Decrypt(char *ciphertext, RSA_KEY_t *key, char **plaintext, int blockSize);

Requirements

1. Unix-based operating system or WSL in windows
2. GCC Compiler
3. Python 3.x (If you want to run the analysis plotter)

How to run

1. Clone the repository by running the following command in terminal:

git clone https://github.com/AhmedAlaa2024/RSA-Toolkit-Comprehensive-Encryption-and-Decryption-in-C.git

2. Navigate to the directory where the repository was cloned:

cd RSA-Toolkit-Comprehensive-Encryption-and-Decryption-in-C

3. Run compile.sh script:

sudo chmod 777 compile.sh
./compile.sh

4. If you want to run the Chatting Room, open 2 terminals and run each command in each terminal:

./Server
./Client

Note: Now you can write anything in both Server, Client and enjoy secure chatting.

5. If you want to run the performance analysis of the encryption and decryption:

cd PerformanceAnalysis
./Encryption_Decryption_Analysis

6. If you want to run the timing analysis of the brute force attack using prime factorization:

cd PerformanceAnalysis
./BruteforceAttack_PrimeFactorization_Analysis

7. If you want to replot the produced data due to step 5 or 6, open the python note book analysis.ipynb and run it.

RSA Performance Under Stress Test

This software is licensed under MIT License, See License for more information ©AhmedAlaa.