[Rpm-maint] [rpm-software-management/rpm] Installation / verification should not pass if the (sub)key(s) has been revoked or expired (#1598)

[Dmitry Antipov]

Well, it seems it would be helpful to have some advice here. In my local setup, packets analysis code detects the following,
in that order:
`
   PGPTAG_PUBLIC_KEY                    ; [1] public key id saved

   PGPTAG_SIGNATURE
     <unknown 33>
     PGPSUBTYPE_SIG_CREATE_TIME
     PGPSUBTYPE_REVOKE_REASON           ; [2] revoke reason
     PGPSUBTYPE_ISSUER_KEYID            ; [3] key id match saved at [1]

   PGPTAG_USER_ID

   PGPTAG_SIGNATURE
     <unknown 33>
     PGPSUBTYPE_SIG_CREATE_TIME
     PGPSUBTYPE_KEY_FLAGS
     PGPSUBTYPE_KEY_EXPIRE_TIME
     PGPSUBTYPE_PREFER_SYMKEY
     PGPSUBTYPE_PREFER_HASH
     PGPSUBTYPE_PREFER_COMPRESS
     PGPSUBTYPE_FEATURES
     PGPSUBTYPE_KEYSERVER_PREFERS
     PGPSUBTYPE_ISSUER_KEYID            ; key id match saved at [1]

   PGPTAG_USER_ID

   PGPTAG_SIGNATURE
     <unknown 33>
     PGPSUBTYPE_SIG_CREATE_TIME
     PGPSUBTYPE_KEY_FLAGS
     PGPSUBTYPE_KEY_EXPIRE_TIME
     PGPSUBTYPE_PREFER_SYMKEY
     PGPSUBTYPE_PREFER_HASH
     PGPSUBTYPE_PREFER_COMPRESS
     PGPSUBTYPE_FEATURES
     PGPSUBTYPE_KEYSERVER_PREFERS
     PGPSUBTYPE_ISSUER_KEYID            ; key id match saved at [1]

   PGPTAG_PUBLIC_SUBKEY                 ; subkey saved for later analysis

   PGPTAG_SIGNATURE
     <unknown 33>
     PGPSUBTYPE_SIG_CREATE_TIME
     PGPSUBTYPE_KEY_FLAGS
     PGPSUBTYPE_KEY_EXPIRE_TIME
     PGPSUBTYPE_ISSUER_KEYID            ; key id match saved at [1]
     PGPSUBTYPE_EMBEDDED_SIG

   PGPTAG_SIGNATURE
     <unknown 33>
     PGPSUBTYPE_SIG_CREATE_TIME
     PGPSUBTYPE_SIGNER_USERID
     PGPSUBTYPE_ISSUER_KEYID            ; key id match saved at [1]
`
So, if [2] is detected and key id at [3] matches key id saved at [1], can I assume that the key (and so all subkeys) is revoked?


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