RSA is an asymmetric cryptographic algorithm that uses a pair of mathematically linked keys:

• Public Key (shared openly) ? used for encryption

• Private Key (kept secret on the server) ? used for decryption

Anything encrypted with the public key can only be decrypted using the matching private key.

RSA client-side encryption is used in situations where:

• A client must send sensitive data (passwords, credentials, tokens, PII, etc.)

• The server must ensure only it can read the incoming data

• Data must remain secure even if intercepted during transmission