kwallet is actually not a single program but consists of several parts scattered across all of the kde modules.
|Backend||kdelibs/kwallet||reading/writing kwl files and encryption||KWallet::Backend, KWallet::Entry|
|UI components||kdelibs/kdeui/util||provides the client API for kwallet, mostly dbus client stubs||KWallet::Wallet|
|kwalletd||kdelibs/kio/misc/kwalletd||the actual kwalletd, currently a module to kded accepting client requests using dbus. This part also has some GUI eg. for authenticating a user.||KWalletD, KWalletWizard, KTimeout|
|kwalletmanager||kdeutils/kwallet||The application the user uses for managing the wallets and the password entries.||none|
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