* main.h, encode.c (setup_symkey): New. Prompt for a passphrase and
create a DEK for symmetric encryption. (write_symkey_enc): New. Write out
symmetrically encrypted session keys. (encode_crypt, encrypt_filter): Use
them here here when creating a message that can be decrypted with a
passphrase or a pk.
* sign.c (sign_file): Call setup_symkey if we are doing a --symmetric
--sign --encrypt.
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.
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.
* encode.c (encode_simple): Allow for 32 bytes (256 bits) of symmetrically
encrypted session key. Use --s2k-cipher-algo to choose cipher, rather
than the default cipher.
* parse-packet.c (parse_subkeyenc): Give a warning if an symmetrically
encrypted session key is seen without salt. Show in --list-packets if a
symetrically encrypted session key is present.
* pubkey-enc.c (get_it): Always show cipher-not-in-prefs warning unless
--quiet is set. Use text name of cipher in warning.
don't support it yet (--sign, --clearsign, --detach-sign, --symmetric, and
--store).
* g10.c (main): Add --multifile as an alias to turn --encrypt into
--encrypt-files (plus --verify-files, --decrypt-files).
* encode.c (use_mdc), g10.c (main): Use RFC1991 and RFC2440 directly to
check for MDC usability. Do not set the force_mdc or disable_mdc flags
since there is no point any longer.
getkey.c, keydb.c, openfile.c, plaintext.c, status.c, gpgv.c, keygen.c,
options.h, sig-check.c, tdbio.h, encode.c, mainproc.c, parse-packet.c,
signal.c, textfilter.c: Edit all preprocessor instructions to remove
whitespace before the '#'. This is not required by C89, but there are some
compilers out there that don't like it.
* sign.c (write_plaintext_packet)
* encode.c (encode_simple,encode_crypt): Make sure that a filename
of "-" is considered to be stdin so that iobuf_get_filelength
won't get called. This fixes bug 156 reported by Gregery Barton.
(do_export_stream), import.c (remove_bad_stuff, import), parse-packet.c
(dump_sig_subpkt, parse_one_sig_subpkt): Remove vestigal code for the old
sig cache subpacket. This wasn't completely harmless as it caused
subpacket 101 to disappear on import and export.
* options.h, armor.c, cipher.c, g10.c, keyedit.c, pkclist.c, sign.c,
encode.c, getkey.c, revoke.c: The current flags for different levels of
PGP-ness are massively complex. This is step one in simplifying them. No
functional change yet, just use a macro to check for compliance level.
* sign.c (sign_file): Fix bug that causes spurious compression preference
warning.
* sign.c (clearsign_file): Fix bug that prevents proper warning message
from appearing when clearsigning in --pgp2 mode with a non-v3 RSA key.
* main.h, misc.c (compliance_option_string, compliance_string,
compliance_failure), pkclist.c (build_pk_list), sign.c (sign_file,
clearsign_file), encode.c (encode_crypt, write_pubkey_enc_from_list): New
functions to put the "this message may not be usable...." warning in one
place.
* options.h, g10.c (main): Part two of the simplification. Use a single
enum to indicate what we are compliant to (1991, 2440, PGPx, etc.)
* g10.c (main): Show errors for failure in export, send-keys, recv-keys,
and refresh-keys.
* options.h, g10.c (main): Give algorithm warnings for algorithms chosen
against the --pgpX and --openpgp rules.
* keydb.h, pkclist.c (algo_available): Make TIGER192 invalid in --openpgp
mode.
* sign.c (sign_file), pkclist.c (algo_available): Allow passing a hint of
0.
agent is to be used. Noted by Ingo Kl�cker.
(agent_get_passphrase): Inhibit caching when we have no
fingerprint. This is required for key generation as well as for
symmetric only encryption.
* passphrase .c (agent_get_passphrase): New arg CANCELED.
(passphrase_to_dek): Ditto. Passed to above. Changed all
callers to pass NULL.
* seckey-cert.c (do_check): New arg CANCELED.
(check_secret_key): Terminate loop when canceled.
* keyedit.c (change_passphrase): Pass ERRTEXT untranslated to
passphrase_to_dek and translate where appropriate.
* seckey-cert.c (check_secret_key): Ditto.
* keygen.c (ask_passphrase): Ditto.
* passphrase.c (agent_get_passphrase): Translate the TRYAGAIN_TEXT.
Switch the codeset to utf-8.
pkclist.c (algo_available), revoke.c (gen_revoke): Add --pgp8 mode. This
is basically identical to --pgp7 in all ways except that signing subkeys,
v4 data sigs (including expiration), and SK comments are allowed.
* getkey.c (finish_lookup): Comment.
* main.h, keylist.c (reorder_keyblock), keyedit.c (keyedit_menu): Reorder
user ID display in the --edit-key menu to match that of the --list-keys
display.
* g10.c (add_notation_data): Fix initialization.
Return the default algorithm by trying --cipher-algo/--compress-algo, then
the first item in the pref list, then s2k-cipher-algo or ZIP.
* sign.c (sign_file, sign_symencrypt_file), encode.c (encode_simple,
encode_crypt): Call default_cipher_algo and default_compress_algo to get
algorithms.
* g10.c (main): Allow pref selection for compress algo with --openpgp.
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.
