3 * Simple key manager program
5 * (c) 1999 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of Catacomb.
12 * Catacomb is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU Library General Public License as
14 * published by the Free Software Foundation; either version 2 of the
15 * License, or (at your option) any later version.
17 * Catacomb is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU Library General Public License for more details.
22 * You should have received a copy of the GNU Library General Public
23 * License along with Catacomb; if not, write to the Free
24 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
28 /*----- Header files ------------------------------------------------------*/
30 #define _FILE_OFFSET_BITS 64
41 #include <mLib/base64.h>
42 #include <mLib/mdwopt.h>
43 #include <mLib/quis.h>
44 #include <mLib/report.h>
72 #include "sha256-mgf.h"
73 #include "sha224-mgf.h"
74 #include "sha384-mgf.h"
75 #include "sha512-mgf.h"
76 #include "tiger-mgf.h"
77 #include "rmd128-mgf.h"
78 #include "rmd160-mgf.h"
79 #include "rmd256-mgf.h"
80 #include "rmd320-mgf.h"
84 /*----- Handy global state ------------------------------------------------*/
86 static const char *keyfile
= "keyring";
88 /*----- Useful shared functions -------------------------------------------*/
92 * Arguments: @key_file *f@ = pointer to key file block
93 * @unsigned how@ = method to open file with
97 * Use: Opens a key file and handles errors by panicking
101 static void doopen(key_file
*f
, unsigned how
)
103 if (key_open(f
, keyfile
, how
, key_moan
, 0))
104 die(1, "couldn't open keyring `%s': %s", keyfile
, strerror(errno
));
107 /* --- @doclose@ --- *
109 * Arguments: @key_file *f@ = pointer to key file block
113 * Use: Closes a key file and handles errors by panicking
117 static void doclose(key_file
*f
)
119 switch (key_close(f
)) {
121 die(EXIT_FAILURE
, "couldn't write file `%s': %s",
122 keyfile
, strerror(errno
));
124 die(EXIT_FAILURE
, "keyring file `%s' broken: %s (repair manually)",
125 keyfile
, strerror(errno
));
129 /* --- @setattr@ --- *
131 * Arguments: @key_file *f@ = pointer to key file block
132 * @key *k@ = pointer to key block
133 * @char *v[]@ = array of assignments (overwritten!)
137 * Use: Applies the attribute assignments to the key.
140 static void setattr(key_file
*f
, key
*k
, char *v
[])
145 size_t eq
= strcspn(p
, "=");
147 moan("invalid assignment: `%s' (ignored)", p
);
153 if ((err
= key_putattr(f
, k
, *v
, *p ? p
: 0)) != 0)
154 die(EXIT_FAILURE
, "couldn't set attributes: %s", key_strerror(err
));
159 /*----- Seeding -----------------------------------------------------------*/
161 const struct seedalg
{ const char *p
; grand
*(*gen
)(const void *, size_t); }
163 { "dsarand", dsarand_create
},
164 { "rmd128-mgf", rmd128_mgfrand
},
165 { "rmd160-mgf", rmd160_mgfrand
},
166 { "rmd256-mgf", rmd256_mgfrand
},
167 { "rmd320-mgf", rmd320_mgfrand
},
168 { "sha-mgf", sha_mgfrand
},
169 { "sha224-mgf", sha224_mgfrand
},
170 { "sha256-mgf", sha256_mgfrand
},
171 { "sha384-mgf", sha384_mgfrand
},
172 { "sha512-mgf", sha512_mgfrand
},
173 { "tiger-mgf", tiger_mgfrand
},
177 #define SEEDALG_DEFAULT (seedtab + 2)
179 /*----- Key generation ----------------------------------------------------*/
181 /* --- Key generation parameters --- */
183 typedef struct keyopts
{
184 key_file
*kf
; /* Pointer to key file */
185 key
*k
; /* Pointer to the actual key */
186 dstr tag
; /* Full tag name for the key */
187 unsigned f
; /* Flags for the new key */
188 unsigned bits
, qbits
; /* Bit length for the new key */
189 const char *curve
; /* Elliptic curve name/info */
190 grand
*r
; /* Random number source */
191 key
*p
; /* Parameters key-data */
194 #define f_bogus 1u /* Error in parsing */
195 #define f_lock 2u /* Passphrase-lock private key */
196 #define f_quiet 4u /* Don't show a progress indicator */
197 #define f_limlee 8u /* Generate Lim-Lee primes */
198 #define f_subgroup 16u /* Generate a subgroup */
199 #define f_retag 32u /* Remove any existing tag */
200 #define f_kcdsa 64u /* Generate KCDSA primes */
202 /* --- @dolock@ --- *
204 * Arguments: @keyopts *k@ = key generation options
205 * @key_data **kd@ = pointer to key data to lock
206 * @const char *t@ = tag suffix or null
210 * Use: Does passphrase locking on new keys.
213 static void dolock(keyopts
*k
, key_data
**kd
, const char *t
)
215 if (!(k
->f
& f_lock
))
218 dstr_putf(&k
->tag
, ".%s", t
);
219 if (key_plock(kd
, 0, k
->tag
.buf
))
220 die(EXIT_FAILURE
, "couldn't lock key");
223 /* --- @copyparam@ --- *
225 * Arguments: @keyopts *k@ = pointer to key options
226 * @const char **pp@ = checklist of parameters
228 * Returns: Nonzero if parameters copied; zero if you have to generate
231 * Use: Copies parameters from a source key to the current one.
234 static int copyparam(keyopts
*k
, const char **pp
)
244 /* --- Quick check if no parameters supplied --- */
249 /* --- Run through the checklist --- */
252 key_data
*kd
= key_structfind(k
->p
->k
, *pp
);
254 die(EXIT_FAILURE
, "bad parameter key: parameter `%s' not found", *pp
);
255 if (!KEY_MATCH(kd
, &kf
))
256 die(EXIT_FAILURE
, "bad parameter key: subkey `%s' is not shared", *pp
);
260 /* --- Copy over the parameters --- */
262 kd
= key_copydata(k
->p
->k
, &kf
);
264 key_setkeydata(k
->kf
, k
->k
, kd
);
267 /* --- Copy over attributes --- */
269 for (key_mkattriter(&i
, k
->p
); key_nextattr(&i
, &n
, &v
); )
270 key_putattr(k
->kf
, k
->k
, n
, v
);
279 * Arguments: @key_data *k@ = pointer to key data block
280 * @const char *tag@ = tag string to use
282 * Returns: Pointer to multiprecision integer key item.
284 * Use: Fetches an MP key component.
287 static mp
*getmp(key_data
*k
, const char *tag
)
289 k
= key_structfind(k
, tag
);
291 die(EXIT_FAILURE
, "unexpected failure looking up subkey `%s'", tag
);
292 if ((k
->e
& KF_ENCMASK
) != KENC_MP
)
293 die(EXIT_FAILURE
, "subkey `%s' has an incompatible type", tag
);
297 /* --- @keyrand@ --- *
299 * Arguments: @key_file *kf@ = pointer to key file
300 * @const char *id@ = pointer to key id (or null)
304 * Use: Keys the random number generator.
307 static void keyrand(key_file
*kf
, const char *id
)
311 /* --- Find the key --- */
314 if ((k
= key_bytag(kf
, id
)) == 0)
315 die(EXIT_FAILURE
, "key `%s' not found", id
);
317 k
= key_bytype(kf
, "catacomb-rand");
320 key_data
*kd
= k
->k
, *kkd
;
324 switch (kd
->e
& KF_ENCMASK
) {
330 if (key_punlock(&kkd
, kd
, d
.buf
))
331 die(EXIT_FAILURE
, "error unlocking key `%s'", d
.buf
);
339 die(EXIT_FAILURE
, "bad encoding type for key `%s'", d
.buf
);
343 /* --- Key the generator --- */
345 rand_key(RAND_GLOBAL
, kd
->u
.k
.k
, kd
->u
.k
.sz
);
350 /* --- Key generation algorithms --- */
352 static void alg_binary(keyopts
*k
)
362 die(EXIT_FAILURE
, "no shared parameters for binary keys");
364 sz
= (k
->bits
+ 7) >> 3;
366 m
= (1 << (((k
->bits
- 1) & 7) + 1)) - 1;
367 k
->r
->ops
->fill(k
->r
, p
, sz
);
369 kd
= key_newbinary(KCAT_SYMM
| KF_BURN
, p
, sz
);
372 key_setkeydata(k
->kf
, k
->k
, kd
);
377 static void alg_des(keyopts
*k
)
387 die(EXIT_FAILURE
, "no shared parameters for DES keys");
388 if (k
->bits
% 56 || k
->bits
> 168)
389 die(EXIT_FAILURE
, "DES keys must be 56, 112 or 168 bits long");
393 k
->r
->ops
->fill(k
->r
, p
, sz
);
394 for (i
= 0; i
< sz
; i
++) {
395 octet x
= p
[i
] | 0x01;
399 p
[i
] = (p
[i
] & 0xfe) | (x
& 0x01);
401 kd
= key_newbinary(KCAT_SYMM
| KF_BURN
, p
, sz
);
404 key_setkeydata(k
->kf
, k
->k
, kd
);
409 static void alg_rsa(keyopts
*k
)
414 /* --- Sanity checking --- */
417 die(EXIT_FAILURE
, "no shared parameters for RSA keys");
421 /* --- Generate the RSA parameters --- */
423 if (rsa_gen(&rp
, k
->bits
, k
->r
, 0,
424 (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0))
425 die(EXIT_FAILURE
, "RSA key generation failed");
427 /* --- Run a test encryption --- */
430 grand
*g
= fibrand_create(k
->r
->ops
->word(k
->r
));
432 mp
*m
= mprand_range(MP_NEW
, rp
.n
, g
, 0);
437 c
= rsa_qpubop(&rpp
, MP_NEW
, m
);
438 c
= rsa_qprivop(&rp
, c
, c
, g
);
441 die(EXIT_FAILURE
, "test encryption failed");
447 /* --- Allrighty then --- */
449 kd
= key_newstruct();
450 key_structsteal(kd
, "n", key_newmp(KCAT_PUB
, rp
.n
));
451 key_structsteal(kd
, "e", key_newmp(KCAT_PUB
, rp
.e
));
453 kkd
= key_newstruct();
454 key_structsteal(kkd
, "d", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.d
));
455 key_structsteal(kkd
, "p", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.p
));
456 key_structsteal(kkd
, "q", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.q
));
457 key_structsteal(kkd
, "q-inv", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.q_inv
));
458 key_structsteal(kkd
, "d-mod-p", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.dp
));
459 key_structsteal(kkd
, "d-mod-q", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.dq
));
460 dolock(k
, &kkd
, "private");
461 key_structsteal(kd
, "private", kkd
);
462 key_setkeydata(k
->kf
, k
->k
, kd
);
467 static void alg_dsaparam(keyopts
*k
)
469 static const char *pl
[] = { "q", "p", "g", 0 };
470 if (!copyparam(k
, pl
)) {
479 /* --- Choose appropriate bit lengths if necessary --- */
486 /* --- Allocate a seed block --- */
488 sz
= (k
->qbits
+ 7) >> 3;
490 k
->r
->ops
->fill(k
->r
, p
, sz
);
492 /* --- Allocate the parameters --- */
494 if (dsa_gen(&dp
, k
->qbits
, k
->bits
, 0, p
, sz
, &ds
,
495 (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0))
496 die(EXIT_FAILURE
, "DSA parameter generation failed");
498 /* --- Store the parameters --- */
500 kd
= key_newstruct();
501 key_structsteal(kd
, "q", key_newmp(KCAT_SHARE
, dp
.q
));
502 key_structsteal(kd
, "p", key_newmp(KCAT_SHARE
, dp
.p
));
503 key_structsteal(kd
, "g", key_newmp(KCAT_SHARE
, dp
.g
));
507 key_setkeydata(k
->kf
, k
->k
, kd
);
510 /* --- Store the seed for future verification --- */
515 base64_encode(&c
, ds
.p
, ds
.sz
, &d
);
516 base64_encode(&c
, 0, 0, &d
);
518 key_putattr(k
->kf
, k
->k
, "seed", d
.buf
);
520 dstr_putf(&d
, "%u", ds
.count
);
521 key_putattr(k
->kf
, k
->k
, "count", d
.buf
);
528 static void alg_dsa(keyopts
*k
)
535 /* --- Get the shared parameters --- */
538 key_split(&k
->k
->k
); kd
= k
->k
->k
;
543 /* --- Choose a private key --- */
545 x
= mprand_range(MP_NEWSEC
, q
, k
->r
, 0);
546 mpmont_create(&mm
, p
);
547 y
= mpmont_exp(&mm
, MP_NEW
, g
, x
);
549 /* --- Store everything away --- */
551 key_structsteal(kd
, "y", key_newmp(KCAT_PUB
, y
));
553 kkd
= key_newstruct();
554 key_structsteal(kkd
, "x", key_newmp(KCAT_PRIV
| KF_BURN
, x
));
555 dolock(k
, &kkd
, "private");
556 key_structsteal(kd
, "private", kkd
);
558 mp_drop(x
); mp_drop(y
);
561 static void alg_dhparam(keyopts
*k
)
563 static const char *pl
[] = { "p", "q", "g", 0 };
565 if (!copyparam(k
, pl
)) {
574 if (strcmp(k
->curve
, "list") == 0) {
576 LIST("Built-in prime fields", stdout
, ptab
[i
].name
, ptab
[i
].name
);
580 if (dh_parse(&qd
, &dp
))
581 die(EXIT_FAILURE
, "error in field spec: %s", qd
.e
);
583 die(EXIT_FAILURE
, "junk at end of field spec");
584 if ((g
= group_prime(&dp
)) == 0)
585 die(EXIT_FAILURE
, "invalid prime field");
586 if (!(k
->f
& f_quiet
) && (e
= G_CHECK(g
, &rand_global
)) != 0)
587 moan("WARNING! group check failed: %s", e
);
595 /* --- Choose a large safe prime number --- */
597 if (k
->f
& f_limlee
) {
602 rc
= dh_limlee(&dp
, k
->qbits
, k
->bits
,
603 (k
->f
& f_subgroup
) ? DH_SUBGROUP
: 0,
604 0, k
->r
, (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0,
605 (k
->f
& f_quiet
) ?
0 : pgen_evspin
, 0, &nf
, &f
);
609 for (i
= 0; i
< nf
; i
++) {
612 mp_writedstr(f
[i
], &d
, 10);
615 key_putattr(k
->kf
, k
->k
, "factors", d
.buf
);
618 } else if (k
->f
& f_kcdsa
) {
621 rc
= dh_kcdsagen(&dp
, k
->qbits
, k
->bits
, 0,
622 0, k
->r
, (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0);
627 mp_writedstr(dp
.q
, &d
, 10);
628 mp_div(&v
, 0, dp
.p
, dp
.q
);
631 mp_writedstr(v
, &d
, 10);
633 key_putattr(k
->kf
, k
->k
, "factors", d
.buf
);
637 rc
= dh_gen(&dp
, k
->qbits
, k
->bits
, 0, k
->r
,
638 (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0);
641 die(EXIT_FAILURE
, "Diffie-Hellman parameter generation failed");
644 kd
= key_newstruct();
645 key_structsteal(kd
, "p", key_newmp(KCAT_SHARE
, dp
.p
));
646 key_structsteal(kd
, "q", key_newmp(KCAT_SHARE
, dp
.q
));
647 key_structsteal(kd
, "g", key_newmp(KCAT_SHARE
, dp
.g
));
651 key_setkeydata(k
->kf
, k
->k
, kd
);
656 static void alg_dh(keyopts
*k
)
663 /* --- Get the shared parameters --- */
666 key_split(&k
->k
->k
); kd
= k
->k
->k
;
671 /* --- Choose a suitable private key --- *
673 * Since %$g$% has order %$q$%, choose %$x < q$%.
676 x
= mprand_range(MP_NEWSEC
, q
, k
->r
, 0);
678 /* --- Compute the public key %$y = g^x \bmod p$% --- */
680 mpmont_create(&mm
, p
);
681 y
= mpmont_exp(&mm
, MP_NEW
, g
, x
);
684 /* --- Store everything away --- */
686 key_structsteal(kd
, "y", key_newmp(KCAT_PUB
, y
));
688 kkd
= key_newstruct();
689 key_structsteal(kkd
, "x", key_newmp(KCAT_PRIV
| KF_BURN
, x
));
690 dolock(k
, &kkd
, "private");
691 key_structsteal(kd
, "private", kkd
);
693 mp_drop(x
); mp_drop(y
);
696 static void alg_bbs(keyopts
*k
)
701 /* --- Sanity checking --- */
704 die(EXIT_FAILURE
, "no shared parameters for Blum-Blum-Shub keys");
708 /* --- Generate the BBS parameters --- */
710 if (bbs_gen(&bp
, k
->bits
, k
->r
, 0,
711 (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0))
712 die(EXIT_FAILURE
, "Blum-Blum-Shub key generation failed");
714 /* --- Allrighty then --- */
716 kd
= key_newstruct();
717 key_structsteal(kd
, "n", key_newmp(KCAT_PUB
, bp
.n
));
719 kkd
= key_newstruct();
720 key_structsteal(kkd
, "p", key_newmp(KCAT_PRIV
| KF_BURN
, bp
.p
));
721 key_structsteal(kkd
, "q", key_newmp(KCAT_PRIV
| KF_BURN
, bp
.q
));
722 dolock(k
, &kkd
, "private");
723 key_structsteal(kd
, "private", kkd
);
724 key_setkeydata(k
->kf
, k
->k
, kd
);
730 static void alg_binparam(keyopts
*k
)
732 static const char *pl
[] = { "p", "q", "g", 0 };
733 if (!copyparam(k
, pl
)) {
740 /* --- Decide on a field --- */
742 if (!k
->bits
) k
->bits
= 128;
743 if (k
->curve
&& strcmp(k
->curve
, "list") == 0) {
745 LIST("Built-in binary fields", stdout
,
746 bintab
[i
].name
, bintab
[i
].name
);
750 if (k
->bits
<= 40) k
->curve
= "p1363-40";
751 else if (k
->bits
<= 56) k
->curve
= "p1363-56";
752 else if (k
->bits
<= 64) k
->curve
= "p1363-64";
753 else if (k
->bits
<= 80) k
->curve
= "p1363-80";
754 else if (k
->bits
<= 112) k
->curve
= "p1363-112";
755 else if (k
->bits
<= 128) k
->curve
= "p1363-128";
758 "no built-in binary fields provide %u-bit security",
763 /* --- Check it --- */
767 if (dhbin_parse(&qd
, &gb
))
768 die(EXIT_FAILURE
, "error in field spec: %s", qd
.e
);
770 die(EXIT_FAILURE
, "junk at end of field spec");
771 if ((g
= group_binary(&gb
)) == 0)
772 die(EXIT_FAILURE
, "invalid binary field");
773 if (!(k
->f
& f_quiet
) && (e
= G_CHECK(g
, &rand_global
)) != 0)
774 moan("WARNING! group check failed: %s", e
);
777 /* --- Write out the answer --- */
779 kd
= key_newstruct();
780 key_structsteal(kd
, "p", key_newmp(KCAT_SHARE
, gb
.p
));
781 key_structsteal(kd
, "q", key_newmp(KCAT_SHARE
, gb
.q
));
782 key_structsteal(kd
, "g", key_newmp(KCAT_SHARE
, gb
.g
));
786 key_setkeydata(k
->kf
, k
->k
, kd
);
791 static void alg_bin(keyopts
*k
)
798 /* --- Get the shared parameters --- */
801 key_split(&k
->k
->k
); kd
= k
->k
->k
;
806 /* --- Choose a suitable private key --- *
808 * Since %$g$% has order %$q$%, choose %$x < q$%.
811 x
= mprand_range(MP_NEWSEC
, q
, k
->r
, 0);
813 /* --- Compute the public key %$y = g^x \bmod p$% --- */
815 gfreduce_create(&r
, p
);
816 y
= gfreduce_exp(&r
, MP_NEW
, g
, x
);
817 gfreduce_destroy(&r
);
819 /* --- Store everything away --- */
821 key_structsteal(kd
, "y", key_newmp(KCAT_PUB
, y
));
823 kkd
= key_newstruct();
824 key_structsteal(kkd
, "x", key_newmp(KCAT_PRIV
| KF_BURN
, x
));
825 dolock(k
, &kkd
, "private");
826 key_structsteal(kd
, "private", kkd
);
828 mp_drop(x
); mp_drop(y
);
831 static void alg_ecparam(keyopts
*k
)
833 static const char *pl
[] = { "curve", 0 };
834 if (!copyparam(k
, pl
)) {
839 /* --- Decide on a curve --- */
841 if (!k
->bits
) k
->bits
= 256;
842 if (k
->curve
&& strcmp(k
->curve
, "list") == 0) {
844 LIST("Built-in elliptic curves", stdout
,
845 ectab
[i
].name
, ectab
[i
].name
);
849 if (k
->bits
<= 56) k
->curve
= "secp112r1";
850 else if (k
->bits
<= 64) k
->curve
= "secp128r1";
851 else if (k
->bits
<= 80) k
->curve
= "secp160r1";
852 else if (k
->bits
<= 96) k
->curve
= "secp192r1";
853 else if (k
->bits
<= 112) k
->curve
= "secp224r1";
854 else if (k
->bits
<= 128) k
->curve
= "secp256r1";
855 else if (k
->bits
<= 192) k
->curve
= "secp384r1";
856 else if (k
->bits
<= 256) k
->curve
= "secp521r1";
858 die(EXIT_FAILURE
, "no built-in curves provide %u-bit security",
862 /* --- Check it --- */
864 if ((e
= ec_getinfo(&ei
, k
->curve
)) != 0)
865 die(EXIT_FAILURE
, "error in curve spec: %s", e
);
866 if (!(k
->f
& f_quiet
) && (e
= ec_checkinfo(&ei
, k
->r
)) != 0)
867 moan("WARNING! curve check failed: %s", e
);
870 /* --- Write out the answer --- */
872 kd
= key_newstruct();
873 key_structsteal(kd
, "curve", key_newstring(KCAT_SHARE
, k
->curve
));
874 key_setkeydata(k
->kf
, k
->k
, kd
);
879 static void alg_ec(keyopts
*k
)
888 /* --- Get the curve --- */
891 key_split(&k
->k
->k
); kd
= k
->k
->k
;
892 if ((kkd
= key_structfind(kd
, "curve")) == 0)
893 die(EXIT_FAILURE
, "unexpected failure looking up subkey `curve')");
894 if ((kkd
->e
& KF_ENCMASK
) != KENC_STRING
)
895 die(EXIT_FAILURE
, "subkey `curve' is not a string");
896 if ((e
= ec_getinfo(&ei
, kkd
->u
.p
)) != 0)
897 die(EXIT_FAILURE
, "error in curve spec: %s", e
);
899 /* --- Invent a private exponent and compute the public key --- */
901 x
= mprand_range(MP_NEWSEC
, ei
.r
, k
->r
, 0);
902 ec_mul(ei
.c
, &p
, &ei
.g
, x
);
904 /* --- Store everything away --- */
906 key_structsteal(kd
, "p", key_newec(KCAT_PUB
, &p
));
908 kkd
= key_newstruct();
909 key_structsteal(kkd
, "x", key_newmp(KCAT_PRIV
| KF_BURN
, x
));
910 dolock(k
, &kkd
, "private");
911 key_structsteal(kd
, "private", kkd
);
919 /* --- The algorithm tables --- */
921 typedef struct keyalg
{
923 void (*proc
)(keyopts
*o
);
927 static keyalg algtab
[] = {
928 { "binary", alg_binary
, "Plain binary data" },
929 { "des", alg_des
, "Binary with DES-style parity" },
930 { "rsa", alg_rsa
, "RSA public-key encryption" },
931 { "bbs", alg_bbs
, "Blum-Blum-Shub generator" },
932 { "dsa", alg_dsa
, "DSA digital signatures" },
933 { "dsa-param", alg_dsaparam
, "DSA shared parameters" },
934 { "dh", alg_dh
, "Diffie-Hellman key exchange" },
935 { "dh-param", alg_dhparam
, "Diffie-Hellman parameters" },
936 { "bindh", alg_bin
, "DH over a binary field" },
937 { "bindh-param", alg_binparam
, "Binary-field DH parameters" },
938 { "ec-param", alg_ecparam
, "Elliptic curve parameters" },
939 { "ec", alg_ec
, "Elliptic curve crypto" },
943 /* --- @cmd_add@ --- */
945 static int cmd_add(int argc
, char *argv
[])
948 time_t exp
= KEXP_EXPIRE
;
949 uint32 kid
= rand_global
.ops
->word(&rand_global
);
950 const char *tag
= 0, *ptag
= 0;
952 keyalg
*alg
= algtab
;
953 const char *rtag
= 0;
954 const struct seedalg
*sa
= SEEDALG_DEFAULT
;
955 keyopts k
= { 0, 0, DSTR_INIT
, 0, 0, 0, 0, 0 };
956 const char *seed
= 0;
959 /* --- Parse options for the subcommand --- */
962 static struct option opt
[] = {
963 { "algorithm", OPTF_ARGREQ
, 0, 'a' },
964 { "bits", OPTF_ARGREQ
, 0, 'b' },
965 { "qbits", OPTF_ARGREQ
, 0, 'B' },
966 { "parameters", OPTF_ARGREQ
, 0, 'p' },
967 { "expire", OPTF_ARGREQ
, 0, 'e' },
968 { "comment", OPTF_ARGREQ
, 0, 'c' },
969 { "tag", OPTF_ARGREQ
, 0, 't' },
970 { "rand-id", OPTF_ARGREQ
, 0, 'R' },
971 { "key-id", OPTF_ARGREQ
, 0, 'I' },
972 { "curve", OPTF_ARGREQ
, 0, 'C' },
973 { "seedalg", OPTF_ARGREQ
, 0, 'A' },
974 { "seed", OPTF_ARGREQ
, 0, 's' },
975 { "newseed", OPTF_ARGREQ
, 0, 'n' },
976 { "lock", 0, 0, 'l' },
977 { "quiet", 0, 0, 'q' },
978 { "lim-lee", 0, 0, 'L' },
979 { "subgroup", 0, 0, 'S' },
980 { "kcdsa", 0, 0, 'K' },
983 int i
= mdwopt(argc
, argv
, "+a:b:B:p:e:c:t:R:I:C:A:s:n:lqrLKS",
988 /* --- Handle the various options --- */
992 /* --- Read an algorithm name --- */
996 size_t sz
= strlen(optarg
);
998 if (strcmp(optarg
, "list") == 0) {
999 for (a
= algtab
; a
->name
; a
++)
1000 printf("%-10s %s\n", a
->name
, a
->help
);
1005 for (a
= algtab
; a
->name
; a
++) {
1006 if (strncmp(optarg
, a
->name
, sz
) == 0) {
1007 if (a
->name
[sz
] == 0) {
1011 die(EXIT_FAILURE
, "ambiguous algorithm name `%s'", optarg
);
1017 die(EXIT_FAILURE
, "unknown algorithm name `%s'", optarg
);
1020 /* --- Bits must be nonzero and a multiple of 8 --- */
1024 k
.bits
= strtoul(optarg
, &p
, 0);
1025 if (k
.bits
== 0 || *p
!= 0)
1026 die(EXIT_FAILURE
, "bad bitlength `%s'", optarg
);
1031 k
.qbits
= strtoul(optarg
, &p
, 0);
1032 if (k
.qbits
== 0 || *p
!= 0)
1033 die(EXIT_FAILURE
, "bad bitlength `%s'", optarg
);
1036 /* --- Parameter selection --- */
1042 /* --- Expiry dates get passed to @get_date@ for parsing --- */
1045 if (strcmp(optarg
, "forever") == 0)
1048 exp
= get_date(optarg
, 0);
1050 die(EXIT_FAILURE
, "bad expiry date `%s'", optarg
);
1054 /* --- Store comments without interpretation --- */
1057 if (key_chkcomment(optarg
))
1058 die(EXIT_FAILURE
, "bad comment string `%s'", optarg
);
1062 /* --- Elliptic curve parameters --- */
1068 /* --- Store tags --- */
1071 if (key_chkident(optarg
))
1072 die(EXIT_FAILURE
, "bad tag string `%s'", optarg
);
1079 /* --- Seeding --- */
1082 const struct seedalg
*ss
;
1083 if (strcmp(optarg
, "list") == 0) {
1084 printf("Seed algorithms:\n");
1085 for (ss
= seedtab
; ss
->p
; ss
++)
1086 printf(" %s\n", ss
->p
);
1089 if (seed
) die(EXIT_FAILURE
, "seed already set -- put -A first");
1091 for (ss
= seedtab
; ss
->p
; ss
++) {
1092 if (strcmp(optarg
, ss
->p
) == 0)
1096 die(EXIT_FAILURE
, "seed algorithm `%s' not known", optarg
);
1102 if (seed
) die(EXIT_FAILURE
, "seed already set");
1104 base64_decode(&b
, optarg
, strlen(optarg
), &d
);
1105 base64_decode(&b
, 0, 0, &d
);
1106 k
.r
= sa
->gen(d
.buf
, d
.len
);
1115 unsigned n
= strtoul(optarg
, &p
, 0);
1116 if (n
== 0 || *p
!= 0 || n
% 8 != 0)
1117 die(EXIT_FAILURE
, "bad seed length `%s'", optarg
);
1118 if (seed
) die(EXIT_FAILURE
, "seed already set");
1121 rand_get(RAND_GLOBAL
, p
, n
);
1123 base64_encode(&b
, p
, n
, &d
);
1124 base64_encode(&b
, 0, 0, &d
);
1126 k
.r
= sa
->gen(p
, n
);
1129 /* --- Key id --- */
1136 id
= strtoul(optarg
, &p
, 16);
1137 if (errno
|| *p
|| id
> MASK32
)
1138 die(EXIT_FAILURE
, "bad key-id `%s'", optarg
);
1142 /* --- Other flags --- */
1163 /* --- Other things are bogus --- */
1171 /* --- Various sorts of bogosity --- */
1173 if ((k
.f
& f_bogus
) || optind
+ 1 > argc
) {
1175 "Usage: add [OPTIONS] TYPE [ATTR...]");
1177 if (key_chkident(argv
[optind
]))
1178 die(EXIT_FAILURE
, "bad key type `%s'", argv
[optind
]);
1180 /* --- Set up various bits of the state --- */
1182 if (exp
== KEXP_EXPIRE
)
1183 exp
= time(0) + 14 * 24 * 60 * 60;
1185 /* --- Open the file and create the basic key block --- *
1187 * Keep on generating keyids until one of them doesn't collide.
1190 doopen(&f
, KOPEN_WRITE
);
1193 /* --- Key the generator --- */
1199 if ((err
= key_new(&f
, kid
, argv
[optind
], exp
, &k
.k
)) == 0)
1201 else if (err
!= KERR_DUPID
)
1202 die(EXIT_FAILURE
, "error adding new key: %s", key_strerror(err
));
1205 /* --- Set various simple attributes --- */
1210 if (k
.f
& f_retag
) {
1211 if ((kk
= key_bytag(&f
, tag
)) != 0 &&
1213 strcmp(kk
->tag
, tag
) == 0)
1214 key_settag(&f
, kk
, 0);
1216 if ((err
= key_settag(&f
, k
.k
, tag
)) != 0)
1217 die(EXIT_FAILURE
, "error setting key tag: %s", key_strerror(err
));
1221 int err
= key_setcomment(&f
, k
.k
, c
);
1223 die(EXIT_FAILURE
, "error setting key comment: %s", key_strerror(err
));
1226 setattr(&f
, k
.k
, argv
+ optind
+ 1);
1228 key_putattr(&f
, k
.k
, "genseed", seed
);
1229 key_putattr(&f
, k
.k
, "seedalg", sa
->p
);
1232 key_fulltag(k
.k
, &k
.tag
);
1234 /* --- Find the parameter key --- */
1237 if ((k
.p
= key_bytag(&f
, ptag
)) == 0)
1238 die(EXIT_FAILURE
, "parameter key `%s' not found", ptag
);
1239 if ((k
.p
->k
->e
& KF_ENCMASK
) != KENC_STRUCT
)
1240 die(EXIT_FAILURE
, "parameter key `%s' is not structured", ptag
);
1243 /* --- Now generate the actual key data --- */
1249 dstr_destroy(&k
.tag
);
1254 /*----- Key listing -------------------------------------------------------*/
1256 /* --- Listing options --- */
1258 typedef struct listopts
{
1259 const char *tfmt
; /* Date format (@strftime@-style) */
1260 int v
; /* Verbosity level */
1261 unsigned f
; /* Various flags */
1262 time_t t
; /* Time now (for key expiry) */
1263 key_filter kf
; /* Filter for matching keys */
1266 /* --- Listing flags --- */
1268 #define f_newline 2u /* Write newline before next entry */
1269 #define f_attr 4u /* Written at least one attribute */
1270 #define f_utc 8u /* Emit UTC time, not local time */
1272 /* --- @showkeydata@ --- *
1274 * Arguments: @key_data *k@ = pointer to key to write
1275 * @int ind@ = indentation level
1276 * @listopts *o@ = listing options
1277 * @dstr *d@ = tag string for this subkey
1281 * Use: Emits a piece of key data in a human-readable format.
1284 static void showkeydata(key_data
*k
, int ind
, listopts
*o
, dstr
*d
)
1286 #define INDENT(i) do { \
1288 for (_i = 0; _i < (i); _i++) { \
1293 switch (k
->e
& KF_ENCMASK
) {
1295 /* --- Binary key data --- *
1297 * Emit as a simple hex dump.
1301 const octet
*p
= k
->u
.k
.k
;
1302 const octet
*l
= p
+ k
->u
.k
.sz
;
1305 fputs(" {", stdout
);
1310 } else if (sz
% 8 == 0)
1314 printf("%02x", *p
++);
1319 fputs("}\n", stdout
);
1322 /* --- Encrypted data --- *
1324 * If the user is sufficiently keen, ask for a passphrase and decrypt the
1325 * key. Otherwise just say that it's encrypted and move on.
1330 fputs(" encrypted\n", stdout
);
1333 if (key_punlock(&kd
, k
, d
->buf
))
1334 printf(" <failed to unlock %s>\n", d
->buf
);
1336 fputs(" encrypted", stdout
);
1337 showkeydata(kd
, ind
, o
, d
);
1343 /* --- Integer keys --- *
1345 * Emit as a large integer in decimal. This makes using the key in
1346 * `calc' or whatever easier.
1351 mp_writefile(k
->u
.m
, stdout
, 10);
1355 /* --- Strings --- */
1358 printf(" `%s'\n", k
->u
.p
);
1361 /* --- Elliptic curve points --- */
1364 if (EC_ATINF(&k
->u
.e
))
1365 fputs(" inf\n", stdout
);
1367 fputs(" 0x", stdout
); mp_writefile(k
->u
.e
.x
, stdout
, 16);
1368 fputs(", 0x", stdout
); mp_writefile(k
->u
.e
.y
, stdout
, 16);
1373 /* --- Structured keys --- *
1375 * Just iterate over the subkeys.
1383 fputs(" {\n", stdout
);
1384 for (key_mksubkeyiter(&i
, k
); key_nextsubkey(&i
, &tag
, &k
); ) {
1385 if (!key_match(k
, &o
->kf
))
1388 printf("%s =", tag
);
1390 dstr_putf(d
, ".%s", tag
);
1391 showkeydata(k
, ind
+ 2, o
, d
);
1394 fputs("}\n", stdout
);
1401 /* --- @showkey@ --- *
1403 * Arguments: @key *k@ = pointer to key to show
1404 * @listopts *o@ = pointer to listing options
1408 * Use: Emits a listing of a particular key.
1411 static void showkey(key
*k
, listopts
*o
)
1413 char ebuf
[24], dbuf
[24];
1416 /* --- Skip the key if the filter doesn't match --- */
1418 if (!key_match(k
->k
, &o
->kf
))
1421 /* --- Sort out the expiry and deletion times --- */
1423 if (KEY_EXPIRED(o
->t
, k
->exp
))
1424 strcpy(ebuf
, "expired");
1425 else if (k
->exp
== KEXP_FOREVER
)
1426 strcpy(ebuf
, "forever");
1428 tm
= (o
->f
& f_utc
) ?
gmtime(&k
->exp
) : localtime(&k
->exp
);
1429 strftime(ebuf
, sizeof(ebuf
), o
->tfmt
, tm
);
1432 if (KEY_EXPIRED(o
->t
, k
->del
))
1433 strcpy(dbuf
, "deleted");
1434 else if (k
->del
== KEXP_FOREVER
)
1435 strcpy(dbuf
, "forever");
1437 tm
= (o
->f
& f_utc
) ?
gmtime(&k
->del
) : localtime(&k
->del
);
1438 strftime(dbuf
, sizeof(dbuf
), o
->tfmt
, tm
);
1441 /* --- If in compact format, just display and quit --- */
1444 if (!(o
->f
& f_newline
)) {
1445 printf("%8s %-20s %-20s %-10s %s\n",
1446 "Id", "Tag", "Type", "Expire", "Delete");
1448 printf("%08lx %-20s %-20s %-10s %s\n",
1449 (unsigned long)k
->id
, k
->tag ? k
->tag
: "<none>",
1450 k
->type
, ebuf
, dbuf
);
1455 /* --- Display the standard header --- */
1457 if (o
->f
& f_newline
)
1458 fputc('\n', stdout
);
1459 printf("keyid: %08lx\n", (unsigned long)k
->id
);
1460 printf("tag: %s\n", k
->tag ? k
->tag
: "<none>");
1461 printf("type: %s\n", k
->type
);
1462 printf("expiry: %s\n", ebuf
);
1463 printf("delete: %s\n", dbuf
);
1464 printf("comment: %s\n", k
->c ? k
->c
: "<none>");
1466 /* --- Display the attributes --- */
1470 const char *av
, *an
;
1473 printf("attributes:");
1474 for (key_mkattriter(&i
, k
); key_nextattr(&i
, &an
, &av
); ) {
1475 printf("\n %s = %s", an
, av
);
1479 fputc('\n', stdout
);
1484 /* --- If dumping requested, dump the raw key data --- */
1488 fputs("key:", stdout
);
1490 showkeydata(k
->k
, 0, o
, &d
);
1497 /* --- @cmd_list@ --- */
1499 static int cmd_list(int argc
, char *argv
[])
1503 listopts o
= { 0, 0, 0, 0, { 0, 0 } };
1505 /* --- Parse subcommand options --- */
1508 static struct option opt
[] = {
1509 { "quiet", 0, 0, 'q' },
1510 { "verbose", 0, 0, 'v' },
1511 { "utc", 0, 0, 'u' },
1512 { "filter", OPTF_ARGREQ
, 0, 'f' },
1515 int i
= mdwopt(argc
, argv
, "+uqvf:", opt
, 0, 0, 0);
1532 int e
= key_readflags(optarg
, &p
, &o
.kf
.f
, &o
.kf
.m
);
1534 die(EXIT_FAILURE
, "bad filter string `%s'", optarg
);
1543 die(EXIT_FAILURE
, "Usage: list [-uqv] [-f FILTER] [TAG...]");
1545 /* --- Open the key file --- */
1547 doopen(&f
, KOPEN_READ
);
1550 /* --- Set up the time format --- */
1553 o
.tfmt
= "%Y-%m-%d";
1554 else if (o
.f
& f_utc
)
1555 o
.tfmt
= "%Y-%m-%d %H:%M:%S UTC";
1557 o
.tfmt
= "%Y-%m-%d %H:%M:%S %Z";
1559 /* --- If specific keys were requested use them, otherwise do all --- *
1561 * Some day, this might turn into a wildcard match.
1564 if (optind
< argc
) {
1566 if ((k
= key_bytag(&f
, argv
[optind
])) != 0)
1569 moan("key `%s' not found", argv
[optind
]);
1573 } while (optind
< argc
);
1576 for (key_mkiter(&i
, &f
); (k
= key_next(&i
)) != 0; )
1584 return (EXIT_FAILURE
);
1589 /*----- Command implementation --------------------------------------------*/
1591 /* --- @cmd_expire@ --- */
1593 static int cmd_expire(int argc
, char *argv
[])
1601 die(EXIT_FAILURE
, "Usage: expire TAG...");
1602 doopen(&f
, KOPEN_WRITE
);
1603 for (i
= 1; i
< argc
; i
++) {
1604 if ((k
= key_bytag(&f
, argv
[i
])) != 0)
1607 moan("key `%s' not found", argv
[i
]);
1615 /* --- @cmd_delete@ --- */
1617 static int cmd_delete(int argc
, char *argv
[])
1625 die(EXIT_FAILURE
, "Usage: delete TAG...");
1626 doopen(&f
, KOPEN_WRITE
);
1627 for (i
= 1; i
< argc
; i
++) {
1628 if ((k
= key_bytag(&f
, argv
[i
])) != 0)
1631 moan("key `%s' not found", argv
[i
]);
1639 /* --- @cmd_setattr@ --- */
1641 static int cmd_setattr(int argc
, char *argv
[])
1647 die(EXIT_FAILURE
, "Usage: setattr TAG ATTR...");
1648 doopen(&f
, KOPEN_WRITE
);
1649 if ((k
= key_bytag(&f
, argv
[1])) == 0)
1650 die(EXIT_FAILURE
, "key `%s' not found", argv
[1]);
1651 setattr(&f
, k
, argv
+ 2);
1656 /* --- @cmd_getattr@ --- */
1658 static int cmd_getattr(int argc
, char *argv
[])
1666 die(EXIT_FAILURE
, "Usage: getattr TAG ATTR");
1667 doopen(&f
, KOPEN_READ
);
1668 if ((k
= key_bytag(&f
, argv
[1])) == 0)
1669 die(EXIT_FAILURE
, "key `%s' not found", argv
[1]);
1671 if ((p
= key_getattr(&f
, k
, argv
[2])) == 0)
1672 die(EXIT_FAILURE
, "no attribute `%s' for key `%s'", argv
[2], d
.buf
);
1679 /* --- @cmd_finger@ --- */
1681 static void fingerprint(key
*k
, const gchash
*ch
, const key_filter
*kf
)
1689 if (key_fingerprint(k
, h
, kf
)) {
1692 for (i
= 0; i
< ch
->hashsz
; i
++) {
1693 if (i
&& i
% 4 == 0)
1695 printf("%02x", p
[i
]);
1697 printf(" %s\n", d
.buf
);
1703 static int cmd_finger(int argc
, char *argv
[])
1707 const gchash
*ch
= &rmd160
;
1708 key_filter kf
= { KF_NONSECRET
, KF_NONSECRET
};
1711 static struct option opt
[] = {
1712 { "filter", OPTF_ARGREQ
, 0, 'f' },
1713 { "algorithm", OPTF_ARGREQ
, 0, 'a' },
1716 int i
= mdwopt(argc
, argv
, "+f:a:", opt
, 0, 0, 0);
1722 int err
= key_readflags(optarg
, &p
, &kf
.f
, &kf
.m
);
1724 die(EXIT_FAILURE
, "bad filter string `%s'", optarg
);
1727 if ((ch
= ghash_byname(optarg
)) == 0)
1728 die(EXIT_FAILURE
, "unknown hash algorithm `%s'", optarg
);
1736 argv
+= optind
; argc
-= optind
;
1738 die(EXIT_FAILURE
, "Usage: fingerprint [-f FILTER] [TAG...]");
1740 doopen(&f
, KOPEN_READ
);
1744 for (i
= 0; i
< argc
; i
++) {
1745 key
*k
= key_bytag(&f
, argv
[i
]);
1747 fingerprint(k
, ch
, &kf
);
1750 moan("key `%s' not found", argv
[i
]);
1756 for (key_mkiter(&i
, &f
); (k
= key_next(&i
)) != 0; )
1757 fingerprint(k
, ch
, &kf
);
1762 /* --- @cmd_verify@ --- */
1764 static unsigned xdigit(char c
)
1766 if ('A' <= c
&& c
<= 'Z') return (c
+ 10 - 'A');
1767 if ('a' <= c
&& c
<= 'z') return (c
+ 10 - 'a');
1768 if ('0' <= c
&& c
<= '9') return (c
- '0');
1772 static void unhexify(octet
*q
, char *p
, size_t n
)
1778 if (*p
== '-' || *p
== ':' || isspace((unsigned char)*p
)) {
1785 die(EXIT_FAILURE
, "hex string too short");
1786 if (!isxdigit((unsigned char)*p
))
1787 die(EXIT_FAILURE
, "bad hex string");
1789 die(EXIT_FAILURE
, "hex string too long");
1790 a
= (a
<< 4) | xdigit(*p
++);
1801 static int cmd_verify(int argc
, char *argv
[])
1805 const gchash
*ch
= &rmd160
;
1810 key_filter kf
= { KF_NONSECRET
, KF_NONSECRET
};
1813 static struct option opt
[] = {
1814 { "filter", OPTF_ARGREQ
, 0, 'f' },
1815 { "algorithm", OPTF_ARGREQ
, 0, 'a' },
1818 int i
= mdwopt(argc
, argv
, "+f:a:", opt
, 0, 0, 0);
1824 int err
= key_readflags(optarg
, &p
, &kf
.f
, &kf
.m
);
1826 die(EXIT_FAILURE
, "bad filter string `%s'", optarg
);
1829 if ((ch
= ghash_byname(optarg
)) == 0)
1830 die(EXIT_FAILURE
, "unknown hash algorithm `%s'", optarg
);
1838 argv
+= optind
; argc
-= optind
;
1839 if (rc
|| argc
!= 2)
1840 die(EXIT_FAILURE
, "Usage: verify [-f FILTER] TAG FINGERPRINT");
1842 doopen(&f
, KOPEN_READ
);
1844 if ((k
= key_bytag(&f
, argv
[0])) == 0)
1845 die(EXIT_FAILURE
, "key `%s' not found", argv
[0]);
1846 buf
= xmalloc(ch
->hashsz
);
1847 unhexify(buf
, argv
[1], ch
->hashsz
);
1849 if (!key_fingerprint(k
, h
, &kf
))
1850 die(EXIT_FAILURE
, "key has no fingerprintable components (as filtered)");
1851 fpr
= GH_DONE(h
, 0);
1852 if (memcmp(fpr
, buf
, ch
->hashsz
) != 0)
1853 die(EXIT_FAILURE
, "key fingerprint mismatch");
1858 /* --- @cmd_comment@ --- */
1860 static int cmd_comment(int argc
, char *argv
[])
1866 if (argc
< 2 || argc
> 3)
1867 die(EXIT_FAILURE
, "Usage: comment TAG [COMMENT]");
1868 doopen(&f
, KOPEN_WRITE
);
1869 if ((k
= key_bytag(&f
, argv
[1])) == 0)
1870 die(EXIT_FAILURE
, "key `%s' not found", argv
[1]);
1871 if ((err
= key_setcomment(&f
, k
, argv
[2])) != 0)
1872 die(EXIT_FAILURE
, "bad comment `%s': %s", argv
[2], key_strerror(err
));
1877 /* --- @cmd_tag@ --- */
1879 static int cmd_tag(int argc
, char *argv
[])
1888 static struct option opt
[] = {
1889 { "retag", 0, 0, 'r' },
1892 int i
= mdwopt(argc
, argv
, "+r", opt
, 0, 0, 0);
1905 argv
+= optind
; argc
-= optind
;
1906 if (argc
< 1 || argc
> 2 || rc
)
1907 die(EXIT_FAILURE
, "Usage: tag [-r] TAG [NEW-TAG]");
1908 doopen(&f
, KOPEN_WRITE
);
1909 if (flags
& f_retag
) {
1910 if ((k
= key_bytag(&f
, argv
[1])) != 0 && strcmp(k
->tag
, argv
[1]) == 0)
1911 key_settag(&f
, k
, 0);
1913 if ((k
= key_bytag(&f
, argv
[0])) == 0)
1914 die(EXIT_FAILURE
, "key `%s' not found", argv
[0]);
1915 if ((err
= key_settag(&f
, k
, argv
[1])) != 0)
1916 die(EXIT_FAILURE
, "bad tag `%s': %s", argv
[1], key_strerror(err
));
1921 /* --- @cmd_lock@ --- */
1923 static int cmd_lock(int argc
, char *argv
[])
1931 die(EXIT_FAILURE
, "Usage: lock QTAG");
1932 doopen(&f
, KOPEN_WRITE
);
1933 if (key_qtag(&f
, argv
[1], &d
, &k
, &kd
))
1934 die(EXIT_FAILURE
, "key `%s' not found", argv
[1]);
1935 if ((*kd
)->e
== KENC_ENCRYPT
&& key_punlock(kd
, 0, d
.buf
))
1936 die(EXIT_FAILURE
, "couldn't unlock key `%s'", d
.buf
);
1937 if (key_plock(kd
, 0, d
.buf
))
1938 die(EXIT_FAILURE
, "failed to lock key `%s'", d
.buf
);
1944 /* --- @cmd_unlock@ --- */
1946 static int cmd_unlock(int argc
, char *argv
[])
1954 die(EXIT_FAILURE
, "Usage: unlock QTAG");
1955 doopen(&f
, KOPEN_WRITE
);
1956 if (key_qtag(&f
, argv
[1], &d
, &k
, &kd
))
1957 die(EXIT_FAILURE
, "key `%s' not found", argv
[1]);
1958 if ((*kd
)->e
!= KENC_ENCRYPT
)
1959 die(EXIT_FAILURE
, "key `%s' is not encrypted", d
.buf
);
1960 if (key_punlock(kd
, 0, d
.buf
))
1961 die(EXIT_FAILURE
, "couldn't unlock key `%s'", d
.buf
);
1967 /* --- @cmd_extract@ --- */
1969 static int cmd_extract(int argc
, char *argv
[])
1975 key_filter kf
= { 0, 0 };
1977 const char *outfile
= 0;
1981 static struct option opt
[] = {
1982 { "filter", OPTF_ARGREQ
, 0, 'f' },
1985 int i
= mdwopt(argc
, argv
, "f:", opt
, 0, 0, 0);
1991 int err
= key_readflags(optarg
, &p
, &kf
.f
, &kf
.m
);
1993 die(EXIT_FAILURE
, "bad filter string `%s'", optarg
);
2001 argv
+= optind
; argc
-= optind
;
2003 die(EXIT_FAILURE
, "Usage: extract [-f FILTER] FILE [TAG...]");
2004 if (strcmp(*argv
, "-") == 0)
2008 dstr_putf(&d
, "%s.new", outfile
);
2009 if (!(fp
= fopen(d
.buf
, "w"))) {
2010 die(EXIT_FAILURE
, "couldn't open `%s' for writing: %s",
2011 d
.buf
, strerror(errno
));
2015 doopen(&f
, KOPEN_READ
);
2019 for (key_mkiter(&i
, &f
); (k
= key_next(&i
)) != 0; )
2020 key_extract(&f
, k
, fp
, &kf
);
2022 for (i
= 1; i
< argc
; i
++) {
2023 if ((k
= key_bytag(&f
, argv
[i
])) != 0)
2024 key_extract(&f
, k
, fp
, &kf
);
2026 moan("key `%s' not found", argv
[i
]);
2031 if (fclose(fp
) || (outfile
&& rename(d
.buf
, outfile
)))
2032 die(EXIT_FAILURE
, "error writing file: %s", strerror(errno
));
2038 /* --- @cmd_tidy@ --- */
2040 static int cmd_tidy(int argc
, char *argv
[])
2044 die(EXIT_FAILURE
, "Usage: tidy");
2045 doopen(&f
, KOPEN_WRITE
);
2046 f
.f
|= KF_MODIFIED
; /* Nasty hack */
2051 /* --- @cmd_merge@ --- */
2053 static int cmd_merge(int argc
, char *argv
[])
2059 die(EXIT_FAILURE
, "Usage: merge FILE");
2060 if (strcmp(argv
[1], "-") == 0)
2062 else if (!(fp
= fopen(argv
[1], "r"))) {
2063 die(EXIT_FAILURE
, "couldn't open `%s' for reading: %s",
2064 argv
[1], strerror(errno
));
2067 doopen(&f
, KOPEN_WRITE
);
2068 key_merge(&f
, argv
[1], fp
, key_moan
, 0);
2073 /* --- @cmd_show@ --- */
2077 listtab[i].name, listtab[i].name) \
2078 LI("Hash functions", hash, \
2079 ghashtab[i], ghashtab[i]->name) \
2080 LI("Elliptic curves", ec, \
2081 ectab[i].name, ectab[i].name) \
2082 LI("Prime Diffie-Hellman groups", dh, \
2083 ptab[i].name, ptab[i].name) \
2084 LI("Binary Diffie-Hellman groups", bindh, \
2085 bintab[i].name, bintab[i].name) \
2086 LI("Key-generation algorithms", keygen, \
2087 algtab[i].name, algtab[i].name) \
2088 LI("Random seeding algorithms", seed, \
2089 seedtab[i].p, seedtab[i].p)
2091 MAKELISTTAB(listtab
, LISTS
)
2093 static int cmd_show(int argc
, char *argv
[])
2095 return (displaylists(listtab
, argv
+ 1));
2098 /*----- Main command table ------------------------------------------------*/
2100 static int cmd_help(int argc
, char *argv
[]);
2102 static cmd cmds
[] = {
2103 { "help", cmd_help
, "help [COMMAND...]" },
2104 { "show", cmd_show
, "show [ITEM...]" },
2105 { "list", cmd_list
, "list [-uqv] [-f FILTER] [TAG...]", "\
2108 -u, --utc Display expiry times etc. in UTC, not local time.\n\
2109 -q, --quiet Show less information.\n\
2110 -v, --verbose Show more information.\n\
2112 { "fingerprint", cmd_finger
, "fingerprint [-f FILTER] [TAG...]", "\
2115 -f, --filter=FILT Only hash key components matching FILT.\n\
2116 -a, --algorithm=HASH Use the named HASH algorithm.\n\
2117 ($ show hash for list.)\n\
2119 { "verify", cmd_verify
, "verify [-f FILTER] TAG FINGERPRINT", "\
2122 -f, --filter=FILT Only hash key components matching FILT.\n\
2123 -a, --algorithm=HASH Use the named HASH algorithm.\n\
2124 ($ show hash for list.)\n\
2126 { "extract", cmd_extract
, "extract [-f FILTER] FILE [TAG...]", "\
2129 -f, --filter=FILT Only extract key components matching FILT.\n\
2131 { "merge", cmd_merge
, "merge FILE" },
2132 { "expire", cmd_expire
, "expire TAG..." },
2133 { "delete", cmd_delete
, "delete TAG..." },
2134 { "setattr", cmd_setattr
, "setattr TAG ATTR..." },
2135 { "getattr", cmd_getattr
, "getattr TAG ATTR" },
2136 { "comment", cmd_comment
, "comment TAG [COMMENT]" },
2137 { "lock", cmd_lock
, "lock QTAG" },
2138 { "unlock", cmd_unlock
, "unlock QTAG" },
2139 { "tag", cmd_tag
, "tag [-r] TAG [NEW-TAG]", "\
2142 -r, --retag Untag any key currently called new-tag.\n\
2144 { "tidy", cmd_tidy
, "tidy" },
2146 "add [-OPTIONS] TYPE [ATTR...]\n\
2147 Options: [-lqrLKS] [-a ALG] [-bB BITS] [-p PARAM] [-R TAG]\n\
2148 [-A SEEDALG] [-s SEED] [-n BITS] [-I KEYID]\n\
2149 [-e EXPIRE] [-t TAG] [-c COMMENT]", "\
2152 -a, --algorithm=ALG Generate keys suitable for ALG.\n\
2153 ($ show keygen for list.)\n\
2154 -b, --bits=N Generate an N-bit key.\n\
2155 -B, --qbits=N Use an N-bit subgroup or factors.\n\
2156 -p, --parameters=TAG Get group parameters from TAG.\n\
2157 -C, --curve=NAME Use elliptic curve or DH group NAME.\n\
2158 ($ show ec or $ show dh for list.)\n\
2159 -A, --seedalg=ALG Use pseudorandom generator ALG to generate key.\n\
2160 ($ show seed for list.)\n\
2161 -s, --seed=BASE64 Use Base64-encoded string BASE64 as seed.\n\
2162 -n, --newseed=COUNT Generate new COUNT-bit seed.\n\
2163 -e, --expire=TIME Make the key expire after TIME.\n\
2164 -c, --comment=STRING Attach the command STRING to the key.\n\
2165 -t, --tag=TAG Tag the key with the name TAG.\n\
2166 -r, --retag Untag any key currently with that tag.\n\
2167 -R, --rand-id=TAG Use key named TAG for the random number generator.\n\
2168 -I, --key-id=ID Force the key-id for the new key.\n\
2169 -l, --lock Lock the generated key with a passphrase.\n\
2170 -q, --quiet Don't give progress indicators while working.\n\
2171 -L, --lim-lee Generate Lim-Lee primes for Diffie-Hellman groups.\n\
2172 -K, --kcdsa Generate KCDSA-style Lim-Lee primes for DH groups.\n\
2173 -S, --subgroup Use a prime-order subgroup for Diffie-Hellman.\n\
2178 static int cmd_help(int argc
, char *argv
[])
2180 sc_help(cmds
, stdout
, argv
+ 1);
2184 /*----- Main code ---------------------------------------------------------*/
2186 /* --- Helpful GNUy functions --- */
2188 static void usage(FILE *fp
)
2190 pquis(fp
, "Usage: $ [-k KEYRING] COMMAND [ARGS]\n");
2193 void version(FILE *fp
)
2195 pquis(fp
, "$, Catacomb version " VERSION
"\n");
2198 void help_global(FILE *fp
)
2202 Performs various simple key management operations.\n\
2204 Global command line options:\n\
2206 -h, --help [COMMAND...] Display this help text (or help for COMMANDs).\n\
2207 -v, --version Display version number.\n\
2208 -u, --usage Display short usage summary.\n\
2210 -k, --keyring=FILE Read and write keys in FILE.\n",
2216 * Arguments: @int argc@ = number of command line arguments
2217 * @char *argv[]@ = array of command line arguments
2219 * Returns: Nonzero on failure.
2221 * Use: Main program. Performs simple key management functions.
2224 int main(int argc
, char *argv
[])
2230 /* --- Initialization --- */
2235 /* --- Parse command line options --- */
2238 static struct option opt
[] = {
2240 /* --- Standard GNUy help options --- */
2242 { "help", 0, 0, 'h' },
2243 { "version", 0, 0, 'v' },
2244 { "usage", 0, 0, 'u' },
2246 /* --- Real live useful options --- */
2248 { "keyring", OPTF_ARGREQ
, 0, 'k' },
2250 /* --- Magic terminator --- */
2254 int i
= mdwopt(argc
, argv
, "+hvu k:", opt
, 0, 0, 0);
2260 /* --- GNU help options --- */
2263 sc_help(cmds
, stdout
, argv
+ optind
);
2272 /* --- Real useful options --- */
2278 /* --- Bogosity --- */
2286 /* --- Complain about excessive bogons --- */
2288 if (f
& f_bogus
|| optind
== argc
) {
2293 /* --- Initialize the Catacomb random number generator --- */
2295 rand_noisesrc(RAND_GLOBAL
, &noise_source
);
2296 rand_seed(RAND_GLOBAL
, 160);
2298 /* --- Dispatch to appropriate command handler --- */
2303 return (findcmd(cmds
, argv
[0])->cmd(argc
, argv
));
2306 /*----- That's all, folks -------------------------------------------------*/