Added CiphertextMultiplyInversePowerOfX benchmark (#162)

Author: fboemer

Benchmarks/RlweBenchmark/RlweBenchmark.swift

@@ -346,6 +346,19 @@ func ciphertextMultiplyBenchmark<Scheme: HeScheme>(_: Scheme.Type) -> () -> Void
     }
 }
 
+func ciphertextMultiplyInversePowerOfXBenchmark<Scheme: HeScheme>(_: Scheme.Type) -> () -> Void {
+    {
+        benchmark("CiphertextMultiplyInversePowerOfX", Scheme.self) { benchmark in
+            let benchmarkContext: RlweBenchmarkContext<Scheme> = try StaticRlweBenchmarkContext.getBenchmarkContext()
+            benchmark.startMeasurement()
+            var ciphertext = try benchmarkContext.ciphertext.convertToCoeffFormat()
+            for _ in benchmark.scaledIterations {
+                try blackHole(ciphertext.multiplyInversePowerOfX(power: ciphertext.context.degree / 2))
+            }
+        }
+    }
+}
+
 func ciphertextRelinearizeBenchmark<Scheme: HeScheme>(_: Scheme.Type) -> () -> Void {
     {
         benchmark("CiphertextRelinearize", Scheme.self) { benchmark in
@@ -665,6 +678,9 @@ nonisolated(unsafe) let benchmarks: () -> Void = {
     ciphertextSubtractBenchmark(Bfv<UInt32>.self)()
     ciphertextSubtractBenchmark(Bfv<UInt64>.self)()
 
+    ciphertextMultiplyInversePowerOfXBenchmark(Bfv<UInt32>.self)()
+    ciphertextMultiplyInversePowerOfXBenchmark(Bfv<UInt64>.self)()
+
     ciphertextMultiplyBenchmark(Bfv<UInt32>.self)()
     ciphertextMultiplyBenchmark(Bfv<UInt64>.self)()