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common: Add support for the new extended private key format.

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* agent/findkey.c (write_extended_private_key): New function.
(agent_write_private_key): Detect if an existing file is in extended
format and update the key within if it is.
(read_key_file): Handle the new format.
* agent/keyformat.txt: Document the new format.
* common/Makefile.am: Add the new files.
* common/private-keys.c: New file.
* common/private-keys.h: Likewise.
* common/t-private-keys.c: Likewise.
* common/util.h (alphap, alnump): New macros.
* tests/migrations: Add test demonstrating that we can cope with the
new format.

--
GnuPG 2.3+ will use a new format to store private keys that is both
more flexible and easier to read and edit by human beings.  The new
format stores name,value-pairs using the common mail and http header
convention.

This patch adds the parser and support code and prepares GnuPG 2.1 for
the new format.

Signed-off-by: Justus Winter <justus@g10code.com>
This commit is contained in:
Justus Winter 2016-04-08 19:21:12 +02:00
parent c6d1f2f08c
commit 12af2630cf
14 changed files with 1831 additions and 13 deletions
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7
common/Makefile.am
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@ -89,7 +89,8 @@ common_sources = \
strlist.c strlist.h \
call-gpg.c call-gpg.h \
exectool.c exectool.h \
server-help.c server-help.h
server-help.c server-help.h \
private-keys.c private-keys.h
if HAVE_W32_SYSTEM
common_sources += w32-reg.c w32-afunix.c w32-afunix.h
@ -154,7 +155,8 @@ endif
module_tests = t-stringhelp t-timestuff \
t-convert t-percent t-gettime t-sysutils t-sexputil \
t-session-env t-openpgp-oid t-ssh-utils \
t-mapstrings t-zb32 t-mbox-util t-iobuf t-strlist
t-mapstrings t-zb32 t-mbox-util t-iobuf t-strlist \
t-private-keys
if !HAVE_W32CE_SYSTEM
module_tests += t-exechelp
endif
@ -203,6 +205,7 @@ t_zb32_LDADD = $(t_common_ldadd)
t_mbox_util_LDADD = $(t_common_ldadd)
t_iobuf_LDADD = $(t_common_ldadd)
t_strlist_LDADD = $(t_common_ldadd)
t_private_keys_LDADD = $(t_common_ldadd)
# System specific test
if HAVE_W32_SYSTEM