Farfalle

The ideal keyed symmetric cryptographic primitive

Cryptography

Cryptographic modes

Building simple modes using Farfalle

Cryptography

Domain separation

The importance of domain separation

Cryptography

Authenticated encryption

Why authenticated encryption is far more secure than plain encryption

Cryptography AEAD

Nonces and authenticated encryption

Building an authenticated encryption mode that is resistant to nonce reuse

Cryptography SIV

Release of unverified plaintext

Building an authenticated encryption mode that is resistant to nonce reuse and the release of unverified plaintext from the decipher oracle

Cryptography RIV

Wide block cipher

Building a wide block cipher

Cryptography WBC

Feistel networks

From SIV to WBC and everything in-between

Cryptography

CPSS attack

A simple yet powerful attack against low-entropy modes

Cryptography

C++ pseudo-random number generation

A cryptographically secure uniform random bit generator

C++

Cycle walking

A clever FPE technique demonstrated on credit card numbers

Cryptography