Werner Koch 4980fb3c6d

sm: Support AES-GCM decryption. ...

* tests/cms/samplemsgs/: Add sample messages.
* sm/gpgsm.c (main): Use gpgrt_fcancel on decryption error.
* sm/decrypt.c (decrypt_gcm_filter): New.
(gpgsm_decrypt): Use this filter if requested.  Check authtag.
--

Note that the sample message pwri-sample.gcm.p7m is broken: The
authtag is duplicated to the authEncryptedContentInfo.  I used a
temporary code during testing hack to that test message out.

2021-06-02 11:03:55 +02:00

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