check_compress_algo): Add bzip2.
* compress.c (compress_filter): Make static to help force the use of
push_compress_filter. Remove default algorithm setting since that is done
in push_compress_filter now.
* main.h: Use named algorithm.
* filter.h, compress.c (push_compress_filter, push_compress_filter2): New.
Figure out which is the appropriate compression filter to use, and push it
into place.
* compress.c (handle_compressed), encode.c (encode_simple, encode_crypt),
sign.c (sign_file, sign_symencrypt_file), import.c (read_block), export.c
(do_export): Use push_compress_filter instead of pushing the compression
filter ourselves.
* compress-bz2.c: New. Bzlib versions of the compression filter routines.
* Makefile.am: Include compress-bz2.c if bz2lib is available.
* keylist.c (list_keyblock_print): Denote secrets keys stored on a
card with an '>'. Print the '#' also for subkeys.
(list_keyblock_colon): Introduce new field 15 for sec/ssb to print
the serial number.
message that can be decrypted via a passphrase or public key system.
* main.h, encode.c (encode_seskey): Allow passing in an already-created
session key dek. (encode_simple): Use the actual symmetric cipher when
encrypting a session key for a symmetric message. (encode_crypt): Add a
flag to trigger a hybrid mode that can be decrypted via a passphrase or a
pk. Change all callers.
* mainproc.c (symkey_decrypt_sesskey): There is no way to tell the
difference here between a bad passphrase and a cipher algorithm that we
don't have, so use a error message that makes that clear. Use the actual
list of ciphers when checking whether a cipher is invalid. Return error
if the decrypted cipher algorithm is invalid. (proc_symkey_enc): In a
mixed passphrase/pk message, if a valid dek already exists from decrypting
via pk, do not try to process the passphrase. (proc_symkey_enc): Indicate
when we're decrypting a session key as opposed to decrypting data. If a
passphrase is invalid, discard the dek so we'll keep trying.
Changed all callers.
* cardglue.c (pin_cb): Use it here, so the machine interface can
tell whether the Admin PIN is requested.
* cardglue.c (agent_scd_checkpin): New.
* misc.c (openpgp_pk_algo_usage): Added AUTH usage.
* app-openpgp.c (check_against_given_fingerprint): New. Factored
out that code elsewhere.
(do_check_pin): New.
* card-util.c (card_edit): New command "passwd". Add logic to
check the PIN in advance.
(card_status): Add new args to return the serial number. Changed
all callers.
