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Check if the application session key is available before access #3836

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Feb 22, 2021
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Check if the application session key is available before access #3836

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2 changes: 1 addition & 1 deletion pkg/applicationserver/applicationserver.go
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Original file line number Diff line number Diff line change
Expand Up @@ -312,7 +312,7 @@ func (as *ApplicationServer) publishUp(ctx context.Context, up *ttnpb.Applicatio
// This method returns true if the AppSKey of the given session is wrapped and cannot be unwrapped by the Application
// Server, and if the end device's skip_payload_crypto_override is true or if the link's skip_payload_crypto is true.
func (as *ApplicationServer) skipPayloadCrypto(ctx context.Context, link *ttnpb.ApplicationLink, dev *ttnpb.EndDevice, session *ttnpb.Session) bool {
if session != nil {
if session != nil && session.AppSKey != nil {
if _, err := cryptoutil.UnwrapAES128Key(ctx, session.AppSKey, as.KeyVault); err == nil {
return false
}
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