FIPS 140 provides a standard for assuring that a product has implemented their crypto correctly. It has its warts but overall it skews very close to otuer publi

FIPS 140 provides a standard for assuring that a product has implemented their crypto correctly. It has its warts but overall it skews very close to otuer published sources of algorithms. I think the biggest differences lie in handling edge cases and key generation. That said, receiving a FIPS certification is a huge effort in terms of time and money. I think it is tragic that neither NIST nor the NSA provide a already certified library you can integrate in. That would save enormous amounts of effort. Fun fact - lots of FIPS certifications are white labeled openssl with the latest set of FIPS requirements so I'm not even being that radical.