supported(P-256, P-384, P-521). // Then, based on the curve name, a function code and a block size will be assigned. // If KDSA instruction is not available or if the curve is not supported, canUseKDSA // will set ok to false. func canUseKDSA(c curveID) (functionCode uint64, blockSize int, ok bool) { if !supportsKDSA { return 0, 0, false } switch c { case p256: return 1, 32, true case p384: return 2, 48, true case p521: // Note that the block size doesn't match the field size for P-521. return 3, 80, true }...