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Add key management system

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This adds a key management system that stores (currently) two data
encryption keys of length 128, 192, or 256 bits.  The data keys are
AES256 encrypted using a key encryption key, and validated via GCM
cipher mode.  A command to obtain the key encryption key must be
specified at initdb time, and will be run at every database server
start.  New parameters allow a file descriptor open to the terminal to
be passed.  pg_upgrade support has also been added.

Discussion: https://postgr.es/m/CA+fd4k7q5o6Nc_AaX6BcYM9yqTbC6_pnH-6nSD=54Zp6NBQTCQ@mail.gmail.com
Discussion: https://postgr.es/m/20201202213814.GG20285@momjian.us

Author: Masahiko Sawada, me, Stephen Frost
This commit is contained in:
Bruce Momjian
2020-12-25 10:19:44 -05:00
parent 5c31afc49d
commit 978f869b99
49 changed files with 2091 additions and 35 deletions
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5
src/backend/replication/basebackup.c
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@ -18,6 +18,7 @@
#include "access/xlog_internal.h" /* for pg_start/stop_backup */
#include "catalog/pg_type.h"
#include "common/kmgr_utils.h"
#include "common/file_perm.h"
#include "commands/progress.h"
#include "lib/stringinfo.h"
@ -152,6 +153,10 @@ struct exclude_list_item
*/
static const char *const excludeDirContents[] =
{
/* Skip temporary crypto key directories */
NEW_KMGR_DIR,
OLD_KMGR_DIR,
/*
* Skip temporary statistics files. PG_STAT_TMP_DIR must be skipped even
* when stats_temp_directory is set because PGSS_TEXT_FILE is always