Today a gave a technical talk titled “Crypto Wallets: A Technical Perspective” at the OpenFest 2018 conference in Sofia about crypto wallets, wallet standards and the cryptography behind them, with live examples in JavaScript. Slides from OpenFest 2018 – Crypto Wallets: A Technical Perspective (by Svetlin Nakov)  Video from OpenFest 2018 – Crypto Wallets: A Technical Perspective

Recently I had a talk about the basics of cryptography for blockchain developers at the Bulgarian Web Summit 2018. I am happy to succeed to introduce the most important concepts of the elliptic curve cryptography (ECC), key derivation and encryption (SCrypt, AES and HMAC), digital signatures (ECDSA, sign / verify) and crypto-wallets (HD wallets, mnemonics

This demo is intended to illustrate how DigitalSignerApplet signs files in the client’s Web browser. The user is given below a file upload browser control, two text fields for the results of the signing process and a Java applet for signing selected file. When the user select some file and click on the