Tear `0013-whisperv6-notifications.patch` into two different patches (#657)

_assets/patches/geth/0013-whisperv6-notifications-envelopeversion.patch

@@ -0,0 +1,36 @@
+diff --git a/whisper/notifications/utils.go b/whisper/notifications/utils.go
+index 106752186..cca3fba71 100644
+--- a/whisper/notifications/utils.go
++++ b/whisper/notifications/utils.go
+@@ -1,11 +1,12 @@
+ package notifications
+ 
+ import (
++	"crypto/sha256"
+ 	"crypto/sha512"
+ 	"errors"
+-	"crypto/sha256"
+ 
+ 	crand "crypto/rand"
++
+ 	whisper "github.com/ethereum/go-ethereum/whisper/whisperv5"
+ 	"golang.org/x/crypto/pbkdf2"
+ )
+@@ -24,7 +25,7 @@ func makeSessionKey() ([]byte, error) {
+ 	}
+ 
+ 	key := buf[:keyLen]
+-	derived, err := deriveKeyMaterial(key, whisper.EnvelopeVersion)
++	derived, err := deriveKeyMaterial(key, whisper.ProtocolVersion)
+ 	if err != nil {
+ 		return nil, err
+ 	} else if !validateSymmetricKey(derived) {
+@@ -63,7 +64,7 @@ func deriveKeyMaterial(key []byte, version uint64) (derivedKey []byte, err error
+ }
+ 
+ // MakeTopic returns Whisper topic *as bytes array* by generating cryptographic key from the provided password
+-func MakeTopicAsBytes(password []byte) ([]byte) {
++func MakeTopicAsBytes(password []byte) []byte {
+ 	topic := make([]byte, int(whisper.TopicLength))
+ 	x := pbkdf2.Key(password, password, 8196, 128, sha512.New)
+ 	for i := 0; i < len(x); i++ {

_assets/patches/geth/0014-whisperv6-notifications.patch

@@ -1,39 +1,3 @@
-diff --git a/whisper/notifications/utils.go b/whisper/notifications/utils.go
-index 106752186..cca3fba71 100644
---- a/whisper/notifications/utils.go
-+++ b/whisper/notifications/utils.go
-@@ -1,11 +1,12 @@
- package notifications
- 
- import (
-+	"crypto/sha256"
- 	"crypto/sha512"
- 	"errors"
--	"crypto/sha256"
- 
- 	crand "crypto/rand"
-+
- 	whisper "github.com/ethereum/go-ethereum/whisper/whisperv5"
- 	"golang.org/x/crypto/pbkdf2"
- )
-@@ -24,7 +25,7 @@ func makeSessionKey() ([]byte, error) {
- 	}
- 
- 	key := buf[:keyLen]
--	derived, err := deriveKeyMaterial(key, whisper.EnvelopeVersion)
-+	derived, err := deriveKeyMaterial(key, whisper.ProtocolVersion)
- 	if err != nil {
- 		return nil, err
- 	} else if !validateSymmetricKey(derived) {
-@@ -63,7 +64,7 @@ func deriveKeyMaterial(key []byte, version uint64) (derivedKey []byte, err error
- }
- 
- // MakeTopic returns Whisper topic *as bytes array* by generating cryptographic key from the provided password
--func MakeTopicAsBytes(password []byte) ([]byte) {
-+func MakeTopicAsBytes(password []byte) []byte {
- 	topic := make([]byte, int(whisper.TopicLength))
- 	x := pbkdf2.Key(password, password, 8196, 128, sha512.New)
- 	for i := 0; i < len(x); i++ {
 diff --git a/whisper/whisperv6/api.go b/whisper/whisperv6/api.go
 index 8ae2882e1..7c97f0680 100644
 --- a/whisper/whisperv6/api.go

_assets/patches/geth/README.md

@@ -27,8 +27,9 @@ Instructions for creating a patch from the command line:
 - [`0009-whisper-envelopes-tracing.patch`](./0009-whisper-envelopes-tracing.patch) — adds Whisper envelope tracing (need to be reviewed and documented)
 - [`0010-geth-17-fix-npe-in-filter-system.patch`](./0010-geth-17-fix-npe-in-filter-system.patch) - Temp patch for 1.7.x to fix a NPE in the filter system.
 - [`0011-geth-17-whisperv6-70fbc87.patch`](./0011-geth-17-whisperv6-70fbc87.patch) - Temp patch for 1.7.x to update whisper v6 to the upstream version at the `70fbc87` SHA1.
-- [`0013-whisperv6-notifications.patch`](./0013-whisperv6-notifications.patch) — adds Whisper v6 notifications (need to be reviewed and documented)
+- [`0013-whisperv6-notifications-envelopeversion.patch`](./0013-whisperv6-notifications-envelopeversion.patch) — replaces usage of EnvelopeVersion with ProtocolVersion in notifications for Whisper v6
-- [`0014-whisperv6-envelopes-tracing.patch`](./0014-whisperv6-envelopes-tracing.patch) — adds Whisper v6 envelope tracing (need to be reviewed and documented)
+- [`0014-whisperv6-notifications.patch`](./0014-whisperv6-notifications.patch) — adds Whisper v6 notifications (need to be reviewed and documented)
+- [`0015-whisperv6-envelopes-tracing.patch`](./0015-whisperv6-envelopes-tracing.patch) — adds Whisper v6 envelope tracing (need to be reviewed and documented)
 
 # Updating upstream version