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g10: Record and show statistics for encrypted messages when using TOFU

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* g10/tofu.c: Include "sqrtu32.h".
(struct tofu_dbs_s.s): Rename get_trust_gather_other_keys to
get_trust_gather_signature_stats.  Add new field
get_trust_gather_encryption_stats.
(initdb): Create the encryptions table.
(ask_about_binding): Show the encryption statistics too.
(tofu_register): Rename from this...
(tofu_register_signature): ... to this and update callers.
(tofu_register_encryption): New function.
(write_stats_status): Add parameters encryption_count,
encryption_first_done and encryption_most_recent.  Update callers.
Compute the trust using the euclidean distance of the signature and
signature count.  Compare with twice the threshold.  Include
encryption count information in the TFS and TOFU_STATS lines.
(show_statistics): Also get information about the encrypted messages.
* g10/trustdb.c (tdb_get_validity_core): Use it.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
This commit is contained in:
Neal H. Walfield 2016-09-06 15:45:38 +02:00
parent a9e6db6c7e
commit 875ac9216f
6 changed files with 474 additions and 229 deletions
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2
g10/Makefile.am
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@ -74,7 +74,7 @@ trust_source = trustdb.c trustdb.h tdbdump.c tdbio.c tdbio.h
endif
if USE_TOFU
tofu_source = tofu.h tofu.c gpgsql.c gpgsql.h
tofu_source = tofu.h tofu.c gpgsql.c gpgsql.h sqrtu32.c sqrtu32.h
else
tofu_source =
endif