Enable openssl in tests to support old Go versions

Go 1.4 and older do not support 128-bit IVs which caused
the tests to panic.

internal/configfile/config_file.go

@@ -98,8 +98,8 @@ func LoadConfFile(filename string, password string) ([]byte, *ConfFile, error) {
 	scryptHash := cf.ScryptObject.DeriveKey(password)
 
 	// Unlock master key using password-based key
-	// We use stock go GCM instead of OpenSSL here as speed is not important
-	// and we get better error messages
+	// We use stock go GCM instead of OpenSSL here as we only use 96-bit IVs,
+	// speed is not important and we get better error messages
 	cc := cryptocore.New(scryptHash, false, false)
 	ce := contentenc.New(cc, 4096)
 

internal/contentenc/content_test.go

@@ -23,7 +23,7 @@ func TestSplitRange(t *testing.T) {
 		testRange{6654, 8945})
 
 	key := make([]byte, cryptocore.KeyLen)
-	cc := cryptocore.New(key, false, true)
+	cc := cryptocore.New(key, true, true)
 	f := New(cc, DefaultBS)
 
 	for _, r := range ranges {
@@ -51,7 +51,7 @@ func TestCiphertextRange(t *testing.T) {
 		testRange{6654, 8945})
 
 	key := make([]byte, cryptocore.KeyLen)
-	cc := cryptocore.New(key, false, true)
+	cc := cryptocore.New(key, true, true)
 	f := New(cc, DefaultBS)
 
 	for _, r := range ranges {
@@ -74,7 +74,7 @@ func TestCiphertextRange(t *testing.T) {
 
 func TestBlockNo(t *testing.T) {
 	key := make([]byte, cryptocore.KeyLen)
-	cc := cryptocore.New(key, false, true)
+	cc := cryptocore.New(key, true, true)
 	f := New(cc, DefaultBS)
 
 	b := f.CipherOffToBlockNo(788)

internal/nametransform/names_test.go

@@ -14,7 +14,7 @@ func TestEncryptPathNoIV(t *testing.T) {
 	s = append(s, "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890")
 
 	key := make([]byte, cryptocore.KeyLen)
-	cc := cryptocore.New(key, false, true)
+	cc := cryptocore.New(key, true, true)
 	fs := New(cc, true, false)
 
 	for _, n := range s {