Salt inbound payment ExpandedKey

valentinewallace · valentinewallace · commit 6e0820ca197d · 2021-12-16T16:24:24.000-08:00
Leftover feedback from #1177
diff --git a/lightning/src/ln/channelmanager.rs b/lightning/src/ln/channelmanager.rs
@@ -113,7 +113,7 @@ mod inbound_payment {
 
 	impl ExpandedKey {
 		pub(super) fn new(key_material: &KeyMaterial) -> ExpandedKey {
-			hkdf_extract_expand(&vec![0], &key_material)
+			hkdf_extract_expand(b"LDK Inbound Payment Key Expansion", &key_material)
 		}
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -113,7 +113,7 @@ mod inbound_payment {`
`113`	`113`
`114`	`114`	`impl ExpandedKey {`
`115`	`115`	`pub(super) fn new(key_material: &KeyMaterial) -> ExpandedKey {`
`116`		`- hkdf_extract_expand(&vec![0], &key_material)`
	`116`	`+ hkdf_extract_expand(b"LDK Inbound Payment Key Expansion", &key_material)`
`117`	`117`	`}`
`118`	`118`	`}`
`119`	`119`