I'm looking at Secp 256K1 vs UProve's FIPS 186-3 or P-256 implementation. Is there any relationship between the curves such that I can consistently "map" or "project" values from one curve to another?
Is this a good idea? (What faults could crop up when doing so?)
My goal is to allow for two independent crypto systems based on ECDSA or subgroups to share the same keys via a conversion of some type