From 9caf737bc74b32aabaf0254bacc1acb96a403bbe Mon Sep 17 00:00:00 2001
From: Aron Wussler <aron@wussler.it>
Date: Tue, 7 Apr 2020 15:19:48 +0200
Subject: [PATCH] Add documentation for SHA256 fingerprints

---
 CHANGELOG.md     | 12 ++++++++++++
 helper/mobile.go |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8a6a27..54713dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - Fixed test `TestMultipleKeyMessageEncryption`
 
+### Added
+- SHA256 fingerprint support
+```go
+(key *Key) GetSHA256Fingerprints() (fingerprints []string)
+
+// Helper
+GetSHA256Fingerprints(publicKey string) ([]string, error)
+
+// Helper, mobile only, returns fingerprints encoded as JSON
+GetJsonSHA256Fingerprints(publicKey string) ([]byte, error)
+```
+
 ## [2.0.0] - 2020-01-06
 Since the open-sourcing of the library in May the API has been updated, listening to internal and
 external feedback, in order to have a flexible library, that can be used in a simple settings,
diff --git a/helper/mobile.go b/helper/mobile.go
index 825cca3..4ad95fd 100644
--- a/helper/mobile.go
+++ b/helper/mobile.go
@@ -68,6 +68,8 @@ func EncryptAttachment(plainData []byte, fileName string, keyRing *crypto.KeyRin
 	return decrypted, nil
 }
 
+// GetJsonSHA256Fingerprints returns the SHA256 fingeprints of key and subkeys, encoded in JSON, since gomobile can not
+// handle arrays
 func GetJsonSHA256Fingerprints(publicKey string) ([]byte, error) {
 	key, err := crypto.NewKeyFromArmored(publicKey)
 	if err != nil {