Asymmetric and hybrid cryptography
In Chapter 5, Using Asymmetric and Hybrid Encryption in Node.js, we explained how asymmetric cryptography differs from symmetric (or shared key), and we looked at various examples of using asymmetric ciphers for encrypting data, performing key agreements, and building hybrid encryption schemes. In this section, we'll build upon what we learned in that chapter and show examples of using the same algorithms in a web browser, using the WebCrypto APIs.
Encrypting and decrypting short messages with RSA
RSA is the first asymmetric cipher we encountered in Chapter 5, Using Asymmetric and Hybrid Encryption in Node.js.
When using RSA, each party has a key pair consisting of a private key and a public one. As we've explained, messages are encrypted with a public key (which can be distributed with the world safely) and decrypted using the corresponding private key (which must be kept highly protected).
As we saw in Chapter 7, Introduction...
