Crypto Is Fine. The Code Is Not: Real-World Cryptographic Failures

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Presented at SnowFROC 2026 by

Diptendu Kar

Cryptography has a reputation for being intimidating, mathematical, and difficult to reason about. In reality, many cryptographic failures in production systems have very little to do with cryptography itself. They happen because of small implementation mistakes such as skipping a validation check, trusting unvalidated input, or selecting the wrong algorithm.