// Run starts the engine.
func (e *SaltpackDecrypt) Run(ctx *Context) (err error) {
defer e.G().Trace("SaltpackDecrypt::Run", func() error { return err })()
// We don't load this in the --paperkey case.
var me *libkb.User
var key libkb.GenericKey
if e.arg.Opts.UsePaperKey {
// Prompt the user for a paper key. This doesn't require you to be
// logged in.
keypair, err := getPaperKey(e.G(), ctx)
if err != nil {
return err
}
key = keypair.encKey
} else {
// Load self so that we can get device keys. This does require you to
// be logged in.
me, err = libkb.LoadMe(libkb.NewLoadUserArg(e.G()))
if err != nil {
return err
}
// Get the device encryption key, maybe prompting the user.
ska := libkb.SecretKeyArg{
Me: me,
KeyType: libkb.DeviceEncryptionKeyType,
}
e.G().Log.Debug("| GetSecretKeyWithPrompt")
key, err = e.G().Keyrings.GetSecretKeyWithPrompt(ctx.SecretKeyPromptArg(ska, "decrypting a message/file"))
if err != nil {
return err
}
}
kp, ok := key.(libkb.NaclDHKeyPair)
if !ok || kp.Private == nil {
return libkb.KeyCannotDecryptError{}
}
hook := func(mki *saltpack.MessageKeyInfo) error {
return e.promptForDecrypt(ctx, mki)
}
e.G().Log.Debug("| SaltpackDecrypt")
var mki *saltpack.MessageKeyInfo
mki, err = libkb.SaltpackDecrypt(e.G(), e.arg.Source, e.arg.Sink, kp, hook)
if err == saltpack.ErrNoDecryptionKey {
err = libkb.NoDecryptionKeyError{Msg: "no suitable device key found"}
}
// It's ok if me is nil here.
e.makeMessageInfo(me, mki)
return err
}
// Run starts the engine.
func (e *SaltpackDecrypt) Run(ctx *Context) (err error) {
defer e.G().Trace("SaltpackDecrypt::Run", func() error { return err })()
var me *libkb.User
me, err = libkb.LoadMe(libkb.NewLoadUserArg(e.G()))
if err != nil {
return err
}
ska := libkb.SecretKeyArg{
Me: me,
KeyType: libkb.DeviceEncryptionKeyType,
}
e.G().Log.Debug("| GetSecretKeyWithPrompt")
key, err := e.G().Keyrings.GetSecretKeyWithPrompt(
ctx.LoginContext, ska, ctx.SecretUI,
"decrypting a message/file")
if err != nil {
return err
}
kp, ok := key.(libkb.NaclDHKeyPair)
if !ok || kp.Private == nil {
return libkb.KeyCannotDecryptError{}
}
hook := func(mki *saltpack.MessageKeyInfo) error {
return e.promptForDecrypt(ctx, mki)
}
e.G().Log.Debug("| SaltpackDecrypt")
var mki *saltpack.MessageKeyInfo
mki, err = libkb.SaltpackDecrypt(e.G(), e.arg.Source, e.arg.Sink, kp, hook)
if err == saltpack.ErrNoDecryptionKey {
err = libkb.NoDecryptionKeyError{Msg: "no suitable device key found"}
}
e.makeMessageInfo(me, mki)
return err
}