Explore common cryptographic mistakes and learn how to exploit them in this 54-minute conference talk. Dive into topics such as exclusive OR (XOR), randomness, one-time pads, stream ciphers, block ciphers, and various encryption modes. Understand the importance of proper padding, integrity checks, and authenticated encryption. Gain insights into the differences between hashing and key derivation functions. Walk away with practical knowledge on cryptographic vulnerabilities and recommendations for secure implementation.