gpgme
GnuPG Made Easy (GPGME) is a library designed to make access to GnuPG easier for applications. It provides a High-Level Crypto API for encryption, decryption, signing, signature verification and key management. Currently it uses GnuPG as its backend but the API isn't restricted to this engine; in fact we have already developed a backend for CMS (S/MIME). Because the direct use of GnuPG from an application can be a complicated programming task, it is suggested that all software should try to use GPGME instead. This way bug fixes or improvements can be done at a central place and every application benefits from this. Especially authors of MUAs should consider to use GPGME. It is even planned to create a set of standard widgets for common key selection tasks.
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