Two libraries and a random state module that will be utilized in each of your apps must be implemented. The mathematics behind SS will be handled by one of the libraries, while the SS routines...

Asymmetric cryptography, often known as public-key cryptography, employs pairs of keys: public keys (known to others) and private keys (known only by the owner). These key pairs are created using cryptographic techniques that are based on one-way functions, a type of mathematical object. The private key must be kept secret for security purposes; the public key can be widely disseminated.Using the public key of the intended recipient, anybody can encrypt a message, but the recipient's private key is required to decode it. This enables a server to construct a cryptographic key for appropriate symmetric-key cryptography and then encrypt the newly generated symmetric key using a client's publicly available public key. The client is the only one who can decode this encrypted symmetric key using the server's private key, therefore the server may deliver it to the client through an unsafe channel. As long as the client and server have the same symmetric key, they can safely communicate using symmetric key encryption. This method benefits from the faster speed of symmetric-key cryptography without requiring pre-sharing of symmetric keys.

When encrypting plaintext and decrypting ciphertext, symmetric-key methods share the same cryptographic keys. The keys could be interchangeable or they might undergo a straightforward alteration. A shared secret between two or more parties is represented by the keys. One of the primary drawbacks of symmetric-key encryption in comparison to public-key encryption is the necessity that both parties have access to the secret key.