RSA2048

Public key encryption, private key decryption;Private key encryption, public key decryption.

Implement RSA algorithm based on C language, support public key encrypted, decrypted, private key encrypted, decrypted.

among them:

Function RSA2048 is used to encrypt and decrypt.

此工程实现了RSA2048利用已有公钥私钥进行加密解密的过程，实现方式是使用PSCK1方式进行填充