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agent: New option --enable-extended-key-format.

* agent/gpg-agent.c (oEnableExtendedKeyFormat): New const.
(opts): New option --enable-extended-key-format.
(parse_rereadable_options): Set option
* agent/findkey.c (write_extended_private_key): Add arg 'update'.
(agent_write_private_key): Implement new option.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2017-03-24 10:30:17 +01:00
parent 6fab7bba87
commit 2c237c1362
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GPG key ID: E3FDFF218E45B72B
4 changed files with 52 additions and 11 deletions

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@ -571,6 +571,15 @@ local gpg-agent and use its private keys. This enables decrypting or
signing data on a remote machine without exposing the private keys to the
remote machine.
@anchor{option --enable-extended-key-format}
@item --enable-extended-key-format
@opindex enable-extended-key-format
This option creates keys in the extended private key format. Changing
the passphrase of a key will also convert the key to that new format.
Using this option makes the private keys unreadable for gpg-agent
versions before 2.1.12. The advantage of the extended private key
format is that it is text based and can carry additional meta data.
@anchor{option --enable-ssh-support}
@item --enable-ssh-support