Benchmark Code: https://github.com/CovenantSQL/CovenantSQL/blob/develop/crypto/asymmetric/signature_test.go#L204
BenchmarkSign/Secp256k1-12 20000 66413 ns/op
BenchmarkSign/Secp256k1-25%-12 20000 64881 ns/op
BenchmarkSign/C-Secp256k1-12 20000 77700 ns/op
BenchmarkSign/P224-12 2000 627489 ns/op
BenchmarkSign/P256-12 100000 22207 ns/op
BenchmarkSign/P384-12 300 3394950 ns/op