crypto/internal/fips140: update frozen module version to "v1.0.0"

We are re-sealing the .zip file anyway for another reason, might as well
take the opportunity to fix the "v1.0" mistake.

Note that the actual returned version change will happen when re-sealing
the .zip, as the latest mkzip.go will inject "v1.0.0" instead of "v1.0".

This reapplies CL 701518, reverted in CL 702255.

Change-Id: Ib5b3721bda35c32dd48293b3d1193c12661662dd
Reviewed-on: https://go-review.googlesource.com/c/go/+/702316
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Bypass: Filippo Valsorda <filippo@golang.org>

src/crypto/internal/cryptotest/hash.go

@@ -20,7 +20,7 @@ type MakeHash func() hash.Hash
 // TestHash performs a set of tests on hash.Hash implementations, checking the
 // documented requirements of Write, Sum, Reset, Size, and BlockSize.
 func TestHash(t *testing.T, mh MakeHash) {
-	if boring.Enabled || fips140.Version() == "v1.0" {
+	if boring.Enabled || fips140.Version() == "v1.0.0" {
 		testhash.TestHashWithoutClone(t, testhash.MakeHash(mh))
 		return
 	}

src/crypto/internal/fips140/fips140.go

@@ -67,7 +67,7 @@ func Name() string {
 	return "Go Cryptographic Module"
 }
 
-// Version returns the formal version (such as "v1.0") if building against a
+// Version returns the formal version (such as "v1.0.0") if building against a
 // frozen module with GOFIPS140. Otherwise, it returns "latest".
 func Version() string {
 	// This return value is replaced by mkzip.go, it must not be changed or

src/crypto/internal/fips140test/fips_test.go

@@ -74,11 +74,6 @@ func TestVersion(t *testing.T) {
 			continue
 		}
 		exp := setting.Value
-		if exp == "v1.0.0" {
-			// Unfortunately we enshrined the version of the first module as
-			// v1.0 before deciding to go for full versions.
-			exp = "v1.0"
-		}
 		if v := fips140.Version(); v != exp {
 			t.Errorf("Version is %q, expected %q", v, exp)
 		}

src/crypto/rsa/rsa_test.go

@@ -1246,7 +1246,7 @@ func TestModifiedPrivateKey(t *testing.T) {
 	})
 
 	t.Run("D+2", func(t *testing.T) {
-		if fips140.Version() == "v1.0" {
+		if fips140.Version() == "v1.0.0" {
 			t.Skip("This was fixed after v1.0.0")
 		}
 		testModifiedPrivateKey(t, func(k *PrivateKey) {