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New option --allow-secret-key-import
This commit is contained in:
Werner Koch
parent
bb1bab488f
commit
ed33264fe2
3
NEWS
3
NEWS
@ -8,6 +8,9 @@
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! and make sure that they don't pipe the signed material to stdin !
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! without using a filename and "-" on the the command line. !
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* Secret keys are no longer imported unless you use the new option
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--allow-secret-key-import.
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* Support for the gpg-agent from gpg 1.1
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* Better LFS support.
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1
THANKS
1
THANKS
@ -42,6 +42,7 @@ Enzo Michelangeli em@MailAndNews.com
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Ernst Molitor ernst.molitor@uni-bonn.de
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Fabio Coatti cova@ferrara.linux.it
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Felix von Leitner leitner@amdiv.de
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Florian Weimer Florian.Weimer@rus.uni-stuttgart.de
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Frank Donahoe fdonahoe@wilkes1.wilkes.edu
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Frank Heckenbach heckenb@mi.uni-erlangen.de
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Frank Stajano frank.stajano@cl.cam.ac.uk
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@ -479,6 +479,7 @@ command --update-trustdb.
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There are a few other options which control how this command works.
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Most notable here is the --merge-only options which does not insert new keys
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but does only the merging of new signatures, user-IDs and subkeys.
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See also the option --allow-secret-key-import.
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</para></listitem></varlistentry>
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@ -1404,6 +1405,14 @@ handing out the secret key.
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Don't insert new keys into the keyrings while doing an import.
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</para></listitem></varlistentry>
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<varlistentry>
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<term>--allow-secret-key-import</term>
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<listitem><para>
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Allow import of secret keys. The import command normally skips secret
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keys because a secret key can otherwise be used to attack the trust
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calculation.
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</para></listitem></varlistentry>
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<varlistentry>
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<term>--try-all-secrets</term>
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<listitem><para>
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@ -1,3 +1,11 @@
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2000-12-07 Werner Koch <wk@gnupg.org>
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* g10.c: New option --allow-secret-key-import.
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* import.c (import_keys,import_keys_stream): Honor this option.
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(import): New arg allow_secret and pass that arg down to ...
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(import_secret_one): to this and print a warnign if secret key
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importing is not allowed.
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2000-12-05 Werner Koch <wk@gnupg.org>
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* cipher.c (cipher_filter): Moved the end_encryption status ...
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@ -183,6 +183,7 @@ enum cmd_and_opt_values { aNull = 0,
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oDisablePubkeyAlgo,
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oAllowNonSelfsignedUID,
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oAllowFreeformUID,
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oAllowSecretKeyImport,
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oEnableSpecialFilenames,
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oNoLiteral,
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oSetFilesize,
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@ -389,6 +390,7 @@ static ARGPARSE_OPTS opts[] = {
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{ oNoRandomSeedFile, "no-random-seed-file", 0, "@" },
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{ oNoAutoKeyRetrieve, "no-auto-key-retrieve", 0, "@" },
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{ oMergeOnly, "merge-only", 0, "@" },
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{ oAllowSecretKeyImport, "allow-secret-key-import", 0, "@" },
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{ oTryAllSecrets, "try-all-secrets", 0, "@" },
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{ oEnableSpecialFilenames, "enable-special-filenames", 0, "@" },
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{ oEmu3DESS2KBug, "emulate-3des-s2k-bug", 0, "@"},
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@ -954,6 +956,7 @@ main( int argc, char **argv )
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opt.override_session_key = pargs.r.ret_str;
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break;
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case oMergeOnly: opt.merge_only = 1; break;
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case oAllowSecretKeyImport: opt.allow_secret_key_import = 1; break;
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case oTryAllSecrets: opt.try_all_secrets = 1; break;
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case oTrustedKey: register_trusted_key( pargs.r.ret_str ); break;
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case oEnableSpecialFilenames:
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26
g10/import.c
26
g10/import.c
@ -54,11 +54,11 @@ static struct {
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} stats;
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static int import( IOBUF inp, int fast, const char* fname );
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static int import( IOBUF inp, int fast, const char* fname, int allow_secret );
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static void print_stats(void);
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static int read_block( IOBUF a, PACKET **pending_pkt, KBNODE *ret_root );
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static int import_one( const char *fname, KBNODE keyblock, int fast );
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static int import_secret_one( const char *fname, KBNODE keyblock );
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static int import_secret_one( const char *fname, KBNODE keyblock, int allow );
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static int import_revoke_cert( const char *fname, KBNODE node );
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static int chk_self_sigs( const char *fname, KBNODE keyblock,
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PKT_public_key *pk, u32 *keyid );
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@ -127,7 +127,7 @@ import_keys( char **fnames, int nnames, int fast )
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if( !inp )
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log_error(_("can't open `%s': %s\n"), fname, strerror(errno) );
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else {
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int rc = import( inp, fast, fname );
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int rc = import( inp, fast, fname, opt.allow_secret_key_import );
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iobuf_close(inp);
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if( rc )
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log_error("import from `%s' failed: %s\n", fname,
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@ -148,7 +148,7 @@ import_keys_stream( IOBUF inp, int fast )
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/* fixme: don't use static variables */
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memset( &stats, 0, sizeof( stats ) );
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rc = import( inp, fast, "[stream]" );
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rc = import( inp, fast, "[stream]", opt.allow_secret_key_import );
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print_stats();
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if( !fast )
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sync_trustdb();
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@ -156,7 +156,7 @@ import_keys_stream( IOBUF inp, int fast )
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}
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static int
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import( IOBUF inp, int fast, const char* fname )
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import( IOBUF inp, int fast, const char* fname, int allow_secret )
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{
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PACKET *pending_pkt = NULL;
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KBNODE keyblock;
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@ -173,8 +173,8 @@ import( IOBUF inp, int fast, const char* fname )
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while( !(rc = read_block( inp, &pending_pkt, &keyblock) )) {
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if( keyblock->pkt->pkttype == PKT_PUBLIC_KEY )
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rc = import_one( fname, keyblock, fast );
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else if( keyblock->pkt->pkttype == PKT_SECRET_KEY )
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rc = import_secret_one( fname, keyblock );
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else if( keyblock->pkt->pkttype == PKT_SECRET_KEY )
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rc = import_secret_one( fname, keyblock, allow_secret );
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else if( keyblock->pkt->pkttype == PKT_SIGNATURE
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&& keyblock->pkt->pkt.signature->sig_class == 0x20 )
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rc = import_revoke_cert( fname, keyblock );
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@ -556,9 +556,12 @@ import_one( const char *fname, KBNODE keyblock, int fast )
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/****************
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* Ditto for secret keys. Handling is simpler than for public keys.
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* We allow secret key importing only when allow is true, this is so
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* that a secret key can not be imported accidently and thereby tampering
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* with the trust calculation.
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*/
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static int
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import_secret_one( const char *fname, KBNODE keyblock )
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import_secret_one( const char *fname, KBNODE keyblock, int allow )
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{
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PKT_secret_key *sk;
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KBNODE node, uidnode;
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@ -586,6 +589,13 @@ import_secret_one( const char *fname, KBNODE keyblock )
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putc('\n', stderr);
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}
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stats.secret_read++;
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if (!allow) {
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log_info ( _("secret key %08lX not imported "
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"(use %s to allow for it)\n"),
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(ulong)keyid[1], "--allow-secret-key-import");
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return 0;
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}
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if( !uidnode ) {
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log_error( _("key %08lX: no user ID\n"), (ulong)keyid[1]);
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return 0;
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@ -97,6 +97,7 @@ struct {
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int show_session_key;
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int use_agent;
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int merge_only;
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int allow_secret_key_import;
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int try_all_secrets;
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} opt;
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