The project is not in a position to make any official statements or assurances regarding compliance (or lack thereof) with the US Federal Information Processing Standards. However, there are some clarifying points that may help others to reach useful conclusions about this.

Java

The Java products we produce, including the Identity Provider and OpenSAML libraries, rely on the Java Cryptograpy Extensions service APIs for virtually all encryption, decryption, signing, and verification operations involving the core protocols we support. There are two exceptions worthy of note that apply to the V3+ Identity Provider and OpenSAML stack:

C++

The C++ products we produce, including the Service Provider and OpenSAML libraries, rely solely on OpenSSL for all underlying cryptographic operations. We do not have any specific knowledge as to the compatibility of such a version with our code but would be happy to consider any patches necessary to allow for this.