Although an active area of research for years, formal verification has still not yet reached widespread deployment. We outline the steps needed to move from low-assurance cryptography, as given by libraries such as OpenSSL, to high assurance cryptography in deployment. In detail, we outline the need for a suite of high-assurance cryptographic software with per-microarchitecture optimizations that maintain competitive speeds with existing hand-optimized assembly and the bundling of these cryptographic primitives in a new API that prevents common developer mistakes. A new unified API with both formally verified primi-tives and an easy-to-use interface is needed to replace OpenSSL in future security-critical applications.