X-Git-Url: http://git.osdn.net/view?p=bytom%2Fvapor.git;a=blobdiff_plain;f=crypto%2Fed25519%2Fecmath%2Fpoint_test.go;fp=crypto%2Fed25519%2Fecmath%2Fpoint_test.go;h=4de539a6fca8fbda1e4fbeaa3ff131feeadb4765;hp=0000000000000000000000000000000000000000;hb=db158dcf09436b003defd333f1a665e7e051d820;hpb=d09b7a78d44dc259725902b8141cdba0d716b121

diff --git a/crypto/ed25519/ecmath/point_test.go b/crypto/ed25519/ecmath/point_test.go
new file mode 100644
index 00000000..4de539a6
--- /dev/null
+++ b/crypto/ed25519/ecmath/point_test.go
@@ -0,0 +1,44 @@
+package ecmath
+
+import "testing"
+
+// base is the ed25519 base point
+var base Point
+
+func init() {
+	base.ScMulBase(&One)
+}
+
+func TestBasePointArith(t *testing.T) {
+	var base1 Point
+	base1.ScMul(&base, &One)
+	if !base.ConstTimeEqual(&base1) {
+		ebase := base.Encode()
+		ebase1 := base1.Encode()
+		t.Errorf("base [%x] != 1*base [%x]", ebase[:], ebase1[:])
+	}
+
+	Two := One
+	Two.Add(&Two, &One)
+
+	base2a := base
+	base2a.Add(&base2a, &base)
+
+	base2b := base
+	base2b.ScMul(&base2b, &Two)
+
+	if !base2a.ConstTimeEqual(&base2b) {
+		ebase2a := base2a.Encode()
+		ebase2b := base2b.Encode()
+		t.Errorf("base+base [%x] != 2*base [%x] (1)", ebase2a[:], ebase2b[:])
+	}
+
+	var base2c Point
+	base2c.ScMulBase(&Two)
+
+	if !base2a.ConstTimeEqual(&base2c) {
+		ebase2a := base2a.Encode()
+		ebase2c := base2c.Encode()
+		t.Errorf("base+base [%x] != 2*base [%x] (2)", ebase2a[:], ebase2c[:])
+	}
+}