Fix hashCertRequestInfo to use unix timestamp when hashing

authorize/certRequest.go

@@ -8,6 +8,7 @@
 package authorize
 
 import (
+	"encoding/binary"
 	"gitlab.com/elixxir/crypto/hash"
 	"gitlab.com/xx_network/crypto/signature/rsa"
 	"io"
@@ -43,10 +44,8 @@ func VerifyCertRequest(gwPub *rsa.PublicKey, sig []byte,
 func hashCertRequestInfo(acmeToken string, timestamp time.Time) ([]byte, error) {
 	h := hashType.New()
 	h.Write([]byte(acmeToken))
-	nowBytes, err := timestamp.MarshalBinary()
-	if err != nil {
-		return nil, err
-	}
-	h.Write(nowBytes)
+	tsBytes := make([]byte, 8)
+	binary.BigEndian.PutUint64(tsBytes, uint64(timestamp.UnixNano()))
+	h.Write(tsBytes)
 	return h.Sum(nil), nil
 }

authorize/certRequest_test.go

@@ -47,7 +47,7 @@ func TestSignVerify_CertRequest_Consistency(t *testing.T) {
 	}
 	testDelta := 24 * time.Hour
 	testNow := timestamp.Add(testDelta / 2)
-	expectedSig := []byte{89, 26, 164, 145, 177, 46, 37, 168, 171, 201, 60, 55, 95, 70, 1, 62, 99, 103, 130, 108, 125, 26, 201, 245, 10, 136, 78, 77, 16, 78, 228, 149, 109, 92, 48, 252, 41, 36, 188, 184, 100, 118, 249, 84, 215, 138, 249, 170, 252, 113, 198, 64, 191, 195, 85, 87, 125, 204, 171, 111, 51, 248, 224, 216, 222, 104, 98, 230, 42, 145, 124, 21, 36, 63, 217, 38, 84, 84, 97, 57, 39, 36, 138, 2, 80, 149, 194, 73, 15, 10, 171, 54, 223, 215, 167, 119, 250, 106, 86, 220, 125, 116, 43, 152, 89, 21, 251, 62, 35, 168, 216, 197, 57, 52, 161, 244, 177, 160, 184, 24, 88, 5, 42, 101, 16, 67, 136, 62}
+	expectedSig := []byte{90, 93, 43, 229, 9, 238, 206, 159, 151, 106, 94, 134, 24, 13, 254, 30, 218, 171, 122, 232, 62, 136, 217, 225, 177, 42, 194, 11, 230, 177, 3, 115, 187, 182, 115, 25, 151, 138, 11, 205, 247, 86, 4, 180, 23, 59, 212, 72, 100, 10, 71, 233, 73, 142, 215, 144, 52, 146, 238, 40, 45, 211, 165, 28, 98, 143, 72, 16, 68, 65, 105, 228, 150, 45, 194, 10, 90, 172, 171, 1, 224, 255, 176, 254, 202, 81, 23, 169, 123, 145, 169, 241, 113, 84, 144, 55, 108, 70, 254, 13, 122, 67, 2, 192, 25, 165, 236, 188, 221, 192, 179, 181, 191, 15, 109, 58, 211, 123, 190, 232, 223, 245, 250, 201, 131, 22, 216, 186}
 	sig, err := SignCertRequest(rng, pk, token, timestamp)
 	if err != nil {
 		t.Fatalf("Failed to sign acme token: %+v", err)