It's notoriously difficult to properly implement blockchain protocols that use cryptographic algorithms.In this talk, Mike and Brent will explain some of the features in Hyperledger Ursa and how to use them to solve some of the most common problems faced by people looking to build private and secure protocols on blockchains.

They will start by explaining some of the cryptographic primitives in Ursa and what they do from a functional perspective.Then, they will illustrate how to use them through their own work in Indy and Aries.They will offer advice to others and other tricks on how to develop blockchains with specific security, privacy, and confidentiality requirements.This will include things like designing a security model, picking the right cryptographic tools, and then implementing the blockchain project in a way that minimizes bugs and security vulnerabilities during development.

Mike and Brent will also discuss some of the common mistakes that they have seen people make when using cryptographic algorithms and how to develop in a way that avoids these mistakes.

This talk is targeted at developers with some experience in working with cryptography or security-related code.It is not necessary to be an expert cryptographer or experienced security professional, but some basic knowledge of cryptographic protocols will be needed to get the most out of this talk.