Chapter 6: Digital Signatures with Node.js and Trust
In the previous chapter, we learned about asymmetric cryptography, also called public-key cryptography because it relies on pairs of public/private keys, and we used that to encrypt messages.
In this chapter, we'll begin by looking at public key cryptography's other main use, which is calculating digital signatures. When attached to a message (encrypted or not), these offer a guarantee that the content is intact and that the sender is indeed the person they're claiming to be. Digital signatures are the last class of cryptographic operations we'll be analyzing in this book.
Before we end this chapter, we'll also learn how to deal with the problem of trusting public keys. We'll look at some ...
Get Essential Cryptography for JavaScript Developers now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
