Custom keychain management is no longer supported (keybase#76)

Author: joshblum

README.md

@@ -112,33 +112,6 @@ if err == keychain.ErrorNotFound {
 }
 ```
 
-### OS X
-
-Creating a new keychain and add an item to it:
-
-```go
-
-// Add a new key chain into ~/Application Support/Keychains, with the provided password
-k, err := keychain.NewKeychain("mykeychain.keychain", "my keychain password")
-if err != nil {
-  // Error creating
-}
-
-// Create generic password item with service, account, label, password, access group
-item := keychain.NewGenericPassword("MyService", "gabriel", "A label", []byte("toomanysecrets"), "A123456789.group.com.mycorp")
-item.UseKeychain(k)
-err := keychain.AddItem(item)
-if err != nil {
-  // Error creating
-}
-```
-
-Using a Keychain at path:
-
-```go
-k, err := keychain.NewWithPath("mykeychain.keychain")
-```
-
 ## iOS
 
 Bindable package in `bind`. iOS project in `ios`. Run that project to test iOS.

keychain.go

@@ -1,3 +1,4 @@
+//go:build darwin
 // +build darwin
 
 package keychain
@@ -18,6 +19,20 @@ import (
 	"time"
 )
 
+// AccessibleKey is key for kSecAttrAccessible
+var AccessibleKey = attrKey(C.CFTypeRef(C.kSecAttrAccessible))
+var accessibleTypeRef = map[Accessible]C.CFTypeRef{
+	AccessibleWhenUnlocked:                   C.CFTypeRef(C.kSecAttrAccessibleWhenUnlocked),
+	AccessibleAfterFirstUnlock:               C.CFTypeRef(C.kSecAttrAccessibleAfterFirstUnlock),
+	AccessibleAlways:                         C.CFTypeRef(C.kSecAttrAccessibleAlways),
+	AccessibleWhenUnlockedThisDeviceOnly:     C.CFTypeRef(C.kSecAttrAccessibleWhenUnlockedThisDeviceOnly),
+	AccessibleAfterFirstUnlockThisDeviceOnly: C.CFTypeRef(C.kSecAttrAccessibleAfterFirstUnlockThisDeviceOnly),
+	AccessibleAccessibleAlwaysThisDeviceOnly: C.CFTypeRef(C.kSecAttrAccessibleAlwaysThisDeviceOnly),
+
+	// Only available in 10.10
+	//AccessibleWhenPasscodeSetThisDeviceOnly:  C.CFTypeRef(C.kSecAttrAccessibleWhenPasscodeSetThisDeviceOnly),
+}
+
 // Error defines keychain errors
 type Error int