Add benchmarks for all OPRF suites

Author: chris-wood

oprf/oprf.go

@@ -86,18 +86,19 @@ type Suite interface {
 	ID() int
 	Group() group.Group
 	Hash() crypto.Hash
+	Name() string
 	cannotBeImplementedExternally()
 }
 
 var (
-	// SuiteRistretto255 represents the OPRF with Ristretto255 and SHA-512.
-	SuiteRistretto255 Suite = params{id: 1, group: group.Ristretto255, hash: crypto.SHA512}
+	// SuiteRistretto255 represents the OPRF with Ristretto255 and SHA-512
+	SuiteRistretto255 Suite = params{id: 1, group: group.Ristretto255, hash: crypto.SHA512, name: "OPRF(ristretto255, SHA-512)"}
 	// SuiteP256 represents the OPRF with P-256 and SHA-256.
-	SuiteP256 Suite = params{id: 3, group: group.P256, hash: crypto.SHA256}
+	SuiteP256 Suite = params{id: 3, group: group.P256, hash: crypto.SHA256, name: "OPRF(P-256, SHA-256)"}
 	// SuiteP384 represents the OPRF with P-384 and SHA-384.
-	SuiteP384 Suite = params{id: 4, group: group.P384, hash: crypto.SHA384}
+	SuiteP384 Suite = params{id: 4, group: group.P384, hash: crypto.SHA384, name: "OPRF(P-384, SHA-384)"}
 	// SuiteP521 represents the OPRF with P-521 and SHA-512.
-	SuiteP521 Suite = params{id: 5, group: group.P521, hash: crypto.SHA512}
+	SuiteP521 Suite = params{id: 5, group: group.P521, hash: crypto.SHA512, name: "OPRF(P-521, SHA-512)"}
 )
 
 func GetSuite(id int) (Suite, error) {
@@ -177,6 +178,7 @@ type params struct {
 	m     Mode
 	group group.Group
 	hash  crypto.Hash
+	name  string
 }
 
 func (p params) cannotBeImplementedExternally() {}
@@ -185,6 +187,7 @@ func (p params) String() string     { return fmt.Sprintf("Suite%v", p.group) }
 func (p params) ID() int            { return int(p.id) }
 func (p params) Group() group.Group { return p.group }
 func (p params) Hash() crypto.Hash  { return p.hash }
+func (p params) Name() string       { return p.name }
 
 func (p params) getDST(name string) []byte {
 	return append(append(append([]byte{},

oprf/oprf_test.go

@@ -276,28 +276,34 @@ func Example_oprf() {
 }
 
 func BenchmarkAPI(b *testing.B) {
-	suite := SuiteP256
-	key, err := GenerateKey(suite, rand.Reader)
-	test.CheckNoErr(b, err, "failed key generation")
+	for _, suite := range []Suite{
+		SuiteRistretto255,
+		SuiteP256,
+		SuiteP384,
+		SuiteP521,
+	} {
+		key, err := GenerateKey(suite, rand.Reader)
+		test.CheckNoErr(b, err, "failed key generation")
 
-	b.Run("OPRF", func(b *testing.B) {
-		s := NewServer(suite, key)
-		c := NewClient(suite)
-		benchAPI(b, s, c)
-	})
+		b.Run("OPRF/"+suite.Name(), func(b *testing.B) {
+			s := NewServer(suite, key)
+			c := NewClient(suite)
+			benchAPI(b, s, c)
+		})
 
-	b.Run("VOPRF", func(b *testing.B) {
-		s := NewVerifiableServer(suite, key)
-		c := NewVerifiableClient(suite, s.PublicKey())
-		benchAPI(b, s, c)
-	})
+		b.Run("VOPRF/"+suite.Name(), func(b *testing.B) {
+			s := NewVerifiableServer(suite, key)
+			c := NewVerifiableClient(suite, s.PublicKey())
+			benchAPI(b, s, c)
+		})
 
-	b.Run("POPRF", func(b *testing.B) {
-		info := []byte("shared info")
-		s := &s1{NewPartialObliviousServer(suite, key), info}
-		c := &c1{NewPartialObliviousClient(suite, s.PublicKey()), info}
-		benchAPI(b, s, c)
-	})
+		b.Run("POPRF/"+suite.Name(), func(b *testing.B) {
+			info := []byte("shared info")
+			s := &s1{NewPartialObliviousServer(suite, key), info}
+			c := &c1{NewPartialObliviousClient(suite, s.PublicKey()), info}
+			benchAPI(b, s, c)
+		})
+	}
 }
 
 func benchAPI(b *testing.B, server commonServer, client commonClient) {