Specifically, with respect to openssl and unicode * The language standard specifies Unicode strings * The Haskell Platform library standard adds support for U

Specifically, with respect to openssl and unicode * The language standard specifies Unicode strings * The Haskell Platform library standard adds support for Unicode IO based on packed text buffers * OpenSSL is provided via the venerable hopenssl library And there are many happy web users, such as Janrain, Galois, typLab, Bump, Deutsche Bank and others. The ecosystem is in a pretty nice place now.