partial length encoding. This is required because OpenPGP allows only for
32 bit length fields. From Werner on stable branch.
* getkey.c (get_pubkey_direct): Renamed to... (get_pubkey_fast): this and
made extern. (get_pubkey_byfprint_fast): New. From Werner on stable
branch.
* keydb.h, import.c (import_one): Use get_pubkey_fast instead of
get_pubkey. We don't need a merged key and actually this might lead to
recursions. (revocation_present): Likewise for search by fingerprint.
From Werner on stable branch.
* g10.c (main): Try to create the trustdb even for non-colon-mode list-key
operations. This is required because getkey needs to know whether a a key
is ultimately trusted. From Werner on stable branch.
* keydb.h, encode.c (write_pubkey_enc_from_list), g10.c (main), pkclist.c
(build_pk_list): Add --hidden-recipient (-R) and --hidden-encrypt-to,
which do a single-user variation on --throw-keyid. The "hide this key"
flag is carried in bit 0 of the pk_list flags field.
* keyserver.c (parse_keyrec): Fix shadowing warning.
* encode.c (encode_simple,encode_crypt): Use new style CTB for
compressssed packets when using MDC. We need to do this so that
concatenated messages are properly decrypted. Old style
compression assumes that it is the last packet; given that we
can't determine the length in advance, the uncompressor does not
know where to start. Actually we should use the new CTB always
but this would break PGP 2 compatibility.
* parse-packet.c (parse): Special treatment for new style CTB
compressed packets.
* build-packet.c (do_mdc): Removed. Was not used.
(do_encrypted_mdc): Count the version number and the MDC packet.
(get_user_id_printable): this. Filter out all dangerous
characters. Checked all usages.
(get_user_id_string_native): Renamed to..
(get_user_id_string_printable): this. Filter out all dangerous
characters. Checked all usages.
* keyedit.c (show_basic_key_info): New.
* keylist.c (print_fingerprint): New mode 3.
* import.c (import_one): Use new function to display the user ID.
symmetric compressed files.
* encode.c (encode_simple, encode_crypt): If we are not using a MDC,
compress even if a file is already compressed. This is to help against
the chosen ciphertext attack.
* pkclist.c (select_algo_from_prefs): Fix requested algorithm bug so the
request succeeds even if the requested algorithm is not the first found.
* cipher.c (write_header), encode.c (use_mdc, encode_simple, encode_crypt,
encrypt_filter), g10.c (main): Be more eager to use a MDC. We use a MDC
if the keys directly support it, if the keys list AES (any) or TWOFISH
anywhere in the prefs, or if the cipher chosen does not have a 64 bit
blocksize.
clearsign_file): Use the same --pgpX warning string everywhere to ease
translations.
* encode.c (write_pubkey_enc_from_list): Warn when using --throw-keyid
with --pgpX. Noted by Vedaal Nistar.
