Blockchain Cryptography for Developers: ECC, secp256k1, SCrypt, AES, Wallets

April 15, 2018
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

NakovDocumentSigner :: DigitalSignerApplet – Demo

October 13, 2010
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