Explore common cryptographic mistakes made by developers through a comprehensive conference talk featuring Java illustrations. Delve into topics such as random number generation weaknesses, misuse of hash functions, inappropriate key management, and vulnerabilities in encryption methods. Learn about secure practices for message digests, frequency analysis, and chosen plaintext attacks. Gain insights into RSA encryption, TLS implementation, database encryption, and Java security providers. Discover practical tips to avoid common pitfalls and strengthen cryptographic implementations in your software development projects.