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/codec.h>
42 #include <mLib/base64.h>
43 #include <mLib/mdwopt.h>
44 #include <mLib/quis.h>
45 #include <mLib/report.h>
73 #include "sha256-mgf.h"
74 #include "sha224-mgf.h"
75 #include "sha384-mgf.h"
76 #include "sha512-mgf.h"
77 #include "tiger-mgf.h"
78 #include "rmd128-mgf.h"
79 #include "rmd160-mgf.h"
80 #include "rmd256-mgf.h"
81 #include "rmd320-mgf.h"
85 /*----- Handy global state ------------------------------------------------*/
87 static const char *keyfile
= "keyring";
89 /*----- Useful shared functions -------------------------------------------*/
93 * Arguments: @key_file *f@ = pointer to key file block
94 * @unsigned how@ = method to open file with
98 * Use: Opens a key file and handles errors by panicking
102 static void doopen(key_file
*f
, unsigned how
)
104 if (key_open(f
, keyfile
, how
, key_moan
, 0)){
105 die(EXIT_FAILURE
, "couldn't open keyring `%s': %s",
106 keyfile
, strerror(errno
));
110 /* --- @doclose@ --- *
112 * Arguments: @key_file *f@ = pointer to key file block
116 * Use: Closes a key file and handles errors by panicking
120 static void doclose(key_file
*f
)
122 switch (key_close(f
)) {
124 die(EXIT_FAILURE
, "couldn't write file `%s': %s",
125 keyfile
, strerror(errno
));
127 die(EXIT_FAILURE
, "keyring file `%s' broken: %s (repair manually)",
128 keyfile
, strerror(errno
));
132 /* --- @setattr@ --- *
134 * Arguments: @key_file *f@ = pointer to key file block
135 * @key *k@ = pointer to key block
136 * @char *v[]@ = array of assignments (overwritten!)
140 * Use: Applies the attribute assignments to the key.
143 static void setattr(key_file
*f
, key
*k
, char *v
[])
148 size_t eq
= strcspn(p
, "=");
150 moan("invalid assignment: `%s' (ignored)", p
);
156 if ((err
= key_putattr(f
, k
, *v
, *p ? p
: 0)) != 0)
157 die(EXIT_FAILURE
, "couldn't set attributes: %s", key_strerror(err
));
162 /*----- Seeding -----------------------------------------------------------*/
164 const struct seedalg
{ const char *p
; grand
*(*gen
)(const void *, size_t); }
166 { "dsarand", dsarand_create
},
167 { "rmd128-mgf", rmd128_mgfrand
},
168 { "rmd160-mgf", rmd160_mgfrand
},
169 { "rmd256-mgf", rmd256_mgfrand
},
170 { "rmd320-mgf", rmd320_mgfrand
},
171 { "sha-mgf", sha_mgfrand
},
172 { "sha224-mgf", sha224_mgfrand
},
173 { "sha256-mgf", sha256_mgfrand
},
174 { "sha384-mgf", sha384_mgfrand
},
175 { "sha512-mgf", sha512_mgfrand
},
176 { "tiger-mgf", tiger_mgfrand
},
180 #define SEEDALG_DEFAULT (seedtab + 2)
182 /*----- Key generation ----------------------------------------------------*/
184 /* --- Key generation parameters --- */
186 typedef struct keyopts
{
187 key_file
*kf
; /* Pointer to key file */
188 key
*k
; /* Pointer to the actual key */
189 dstr tag
; /* Full tag name for the key */
190 unsigned f
; /* Flags for the new key */
191 unsigned bits
, qbits
; /* Bit length for the new key */
192 const char *curve
; /* Elliptic curve name/info */
193 grand
*r
; /* Random number source */
194 key
*p
; /* Parameters key-data */
197 #define f_bogus 1u /* Error in parsing */
198 #define f_lock 2u /* Passphrase-lock private key */
199 #define f_quiet 4u /* Don't show a progress indicator */
200 #define f_limlee 8u /* Generate Lim-Lee primes */
201 #define f_subgroup 16u /* Generate a subgroup */
202 #define f_retag 32u /* Remove any existing tag */
203 #define f_kcdsa 64u /* Generate KCDSA primes */
205 /* --- @dolock@ --- *
207 * Arguments: @keyopts *k@ = key generation options
208 * @key_data **kd@ = pointer to key data to lock
209 * @const char *t@ = tag suffix or null
213 * Use: Does passphrase locking on new keys.
216 static void dolock(keyopts
*k
, key_data
**kd
, const char *t
)
218 if (!(k
->f
& f_lock
))
221 dstr_putf(&k
->tag
, ".%s", t
);
222 if (key_plock(kd
, 0, k
->tag
.buf
))
223 die(EXIT_FAILURE
, "couldn't lock key");
226 /* --- @copyparam@ --- *
228 * Arguments: @keyopts *k@ = pointer to key options
229 * @const char **pp@ = checklist of parameters
231 * Returns: Nonzero if parameters copied; zero if you have to generate
234 * Use: Copies parameters from a source key to the current one.
237 static int copyparam(keyopts
*k
, const char **pp
)
247 /* --- Quick check if no parameters supplied --- */
252 /* --- Run through the checklist --- */
255 key_data
*kd
= key_structfind(k
->p
->k
, *pp
);
257 die(EXIT_FAILURE
, "bad parameter key: parameter `%s' not found", *pp
);
258 if (!KEY_MATCH(kd
, &kf
))
259 die(EXIT_FAILURE
, "bad parameter key: subkey `%s' is not shared", *pp
);
263 /* --- Copy over the parameters --- */
265 kd
= key_copydata(k
->p
->k
, &kf
);
267 key_setkeydata(k
->kf
, k
->k
, kd
);
270 /* --- Copy over attributes --- */
272 for (key_mkattriter(&i
, k
->p
); key_nextattr(&i
, &n
, &v
); )
273 key_putattr(k
->kf
, k
->k
, n
, v
);
282 * Arguments: @key_data *k@ = pointer to key data block
283 * @const char *tag@ = tag string to use
285 * Returns: Pointer to multiprecision integer key item.
287 * Use: Fetches an MP key component.
290 static mp
*getmp(key_data
*k
, const char *tag
)
292 k
= key_structfind(k
, tag
);
294 die(EXIT_FAILURE
, "unexpected failure looking up subkey `%s'", tag
);
295 if ((k
->e
& KF_ENCMASK
) != KENC_MP
)
296 die(EXIT_FAILURE
, "subkey `%s' has an incompatible type", tag
);
300 /* --- @keyrand@ --- *
302 * Arguments: @key_file *kf@ = pointer to key file
303 * @const char *id@ = pointer to key id (or null)
307 * Use: Keys the random number generator.
310 static void keyrand(key_file
*kf
, const char *id
)
314 /* --- Find the key --- */
317 if ((k
= key_bytag(kf
, id
)) == 0)
318 die(EXIT_FAILURE
, "key `%s' not found", id
);
320 k
= key_bytype(kf
, "catacomb-rand");
323 key_data
*kd
= k
->k
, *kkd
;
327 switch (kd
->e
& KF_ENCMASK
) {
333 if (key_punlock(&kkd
, kd
, d
.buf
))
334 die(EXIT_FAILURE
, "error unlocking key `%s'", d
.buf
);
342 die(EXIT_FAILURE
, "bad encoding type for key `%s'", d
.buf
);
346 /* --- Key the generator --- */
348 rand_key(RAND_GLOBAL
, kd
->u
.k
.k
, kd
->u
.k
.sz
);
353 /* --- Key generation algorithms --- */
355 static void alg_binary(keyopts
*k
)
365 die(EXIT_FAILURE
, "no shared parameters for binary keys");
367 sz
= (k
->bits
+ 7) >> 3;
369 m
= (1 << (((k
->bits
- 1) & 7) + 1)) - 1;
370 k
->r
->ops
->fill(k
->r
, p
, sz
);
372 kd
= key_newbinary(KCAT_SYMM
| KF_BURN
, p
, sz
);
375 key_setkeydata(k
->kf
, k
->k
, kd
);
380 static void alg_des(keyopts
*k
)
390 die(EXIT_FAILURE
, "no shared parameters for DES keys");
391 if (k
->bits
% 56 || k
->bits
> 168)
392 die(EXIT_FAILURE
, "DES keys must be 56, 112 or 168 bits long");
396 k
->r
->ops
->fill(k
->r
, p
, sz
);
397 for (i
= 0; i
< sz
; i
++) {
398 octet x
= p
[i
] | 0x01;
402 p
[i
] = (p
[i
] & 0xfe) | (x
& 0x01);
404 kd
= key_newbinary(KCAT_SYMM
| KF_BURN
, p
, sz
);
407 key_setkeydata(k
->kf
, k
->k
, kd
);
412 static void alg_rsa(keyopts
*k
)
417 /* --- Sanity checking --- */
420 die(EXIT_FAILURE
, "no shared parameters for RSA keys");
424 /* --- Generate the RSA parameters --- */
426 if (rsa_gen(&rp
, k
->bits
, k
->r
, 0,
427 (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0))
428 die(EXIT_FAILURE
, "RSA key generation failed");
430 /* --- Run a test encryption --- */
433 grand
*g
= fibrand_create(k
->r
->ops
->word(k
->r
));
435 mp
*m
= mprand_range(MP_NEW
, rp
.n
, g
, 0);
440 c
= rsa_qpubop(&rpp
, MP_NEW
, m
);
441 c
= rsa_qprivop(&rp
, c
, c
, g
);
444 die(EXIT_FAILURE
, "test encryption failed");
450 /* --- Allrighty then --- */
452 kd
= key_newstruct();
453 key_structsteal(kd
, "n", key_newmp(KCAT_PUB
, rp
.n
));
454 key_structsteal(kd
, "e", key_newmp(KCAT_PUB
, rp
.e
));
456 kkd
= key_newstruct();
457 key_structsteal(kkd
, "d", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.d
));
458 key_structsteal(kkd
, "p", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.p
));
459 key_structsteal(kkd
, "q", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.q
));
460 key_structsteal(kkd
, "q-inv", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.q_inv
));
461 key_structsteal(kkd
, "d-mod-p", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.dp
));
462 key_structsteal(kkd
, "d-mod-q", key_newmp(KCAT_PRIV
| KF_BURN
, rp
.dq
));
463 dolock(k
, &kkd
, "private");
464 key_structsteal(kd
, "private", kkd
);
465 key_setkeydata(k
->kf
, k
->k
, kd
);
470 static void alg_dsaparam(keyopts
*k
)
472 static const char *pl
[] = { "q", "p", "g", 0 };
473 if (!copyparam(k
, pl
)) {
482 /* --- Choose appropriate bit lengths if necessary --- */
489 /* --- Allocate a seed block --- */
491 sz
= (k
->qbits
+ 7) >> 3;
493 k
->r
->ops
->fill(k
->r
, p
, sz
);
495 /* --- Allocate the parameters --- */
497 if (dsa_gen(&dp
, k
->qbits
, k
->bits
, 0, p
, sz
, &ds
,
498 (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0))
499 die(EXIT_FAILURE
, "DSA parameter generation failed");
501 /* --- Store the parameters --- */
503 kd
= key_newstruct();
504 key_structsteal(kd
, "q", key_newmp(KCAT_SHARE
, dp
.q
));
505 key_structsteal(kd
, "p", key_newmp(KCAT_SHARE
, dp
.p
));
506 key_structsteal(kd
, "g", key_newmp(KCAT_SHARE
, dp
.g
));
510 key_setkeydata(k
->kf
, k
->k
, kd
);
513 /* --- Store the seed for future verification --- */
515 c
= base64_class
.encoder(0, "", 0);
516 c
->ops
->code(c
, ds
.p
, ds
.sz
, &d
); c
->ops
->code(c
, 0, 0, &d
);
519 key_putattr(k
->kf
, k
->k
, "seed", d
.buf
);
521 dstr_putf(&d
, "%u", ds
.count
);
522 key_putattr(k
->kf
, k
->k
, "count", d
.buf
);
529 static void alg_dsa(keyopts
*k
)
536 /* --- Get the shared parameters --- */
539 key_split(&k
->k
->k
); kd
= k
->k
->k
;
544 /* --- Choose a private key --- */
546 x
= mprand_range(MP_NEWSEC
, q
, k
->r
, 0);
547 mpmont_create(&mm
, p
);
548 y
= mpmont_exp(&mm
, MP_NEW
, g
, x
);
550 /* --- Store everything away --- */
552 key_structsteal(kd
, "y", key_newmp(KCAT_PUB
, y
));
554 kkd
= key_newstruct();
555 key_structsteal(kkd
, "x", key_newmp(KCAT_PRIV
| KF_BURN
, x
));
556 dolock(k
, &kkd
, "private");
557 key_structsteal(kd
, "private", kkd
);
559 mp_drop(x
); mp_drop(y
);
562 static void alg_dhparam(keyopts
*k
)
564 static const char *pl
[] = { "p", "q", "g", 0 };
566 if (!copyparam(k
, pl
)) {
575 if (strcmp(k
->curve
, "list") == 0) {
577 LIST("Built-in prime fields", stdout
, ptab
[i
].name
, ptab
[i
].name
);
581 if (dh_parse(&qd
, &dp
))
582 die(EXIT_FAILURE
, "error in field spec: %s", qd
.e
);
584 die(EXIT_FAILURE
, "junk at end of field spec");
585 if ((g
= group_prime(&dp
)) == 0)
586 die(EXIT_FAILURE
, "invalid prime field");
587 if (!(k
->f
& f_quiet
) && (e
= G_CHECK(g
, &rand_global
)) != 0)
588 moan("WARNING! group check failed: %s", e
);
596 /* --- Choose a large safe prime number --- */
598 if (k
->f
& f_limlee
) {
603 rc
= dh_limlee(&dp
, k
->qbits
, k
->bits
,
604 (k
->f
& f_subgroup
) ? DH_SUBGROUP
: 0,
605 0, k
->r
, (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0,
606 (k
->f
& f_quiet
) ?
0 : pgen_evspin
, 0, &nf
, &f
);
610 for (i
= 0; i
< nf
; i
++) {
613 mp_writedstr(f
[i
], &d
, 10);
616 key_putattr(k
->kf
, k
->k
, "factors", d
.buf
);
619 } else if (k
->f
& f_kcdsa
) {
622 rc
= dh_kcdsagen(&dp
, k
->qbits
, k
->bits
, 0,
623 0, k
->r
, (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0);
628 mp_writedstr(dp
.q
, &d
, 10);
629 mp_div(&v
, 0, dp
.p
, dp
.q
);
632 mp_writedstr(v
, &d
, 10);
634 key_putattr(k
->kf
, k
->k
, "factors", d
.buf
);
638 rc
= dh_gen(&dp
, k
->qbits
, k
->bits
, 0, k
->r
,
639 (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0);
642 die(EXIT_FAILURE
, "Diffie-Hellman parameter generation failed");
645 kd
= key_newstruct();
646 key_structsteal(kd
, "p", key_newmp(KCAT_SHARE
, dp
.p
));
647 key_structsteal(kd
, "q", key_newmp(KCAT_SHARE
, dp
.q
));
648 key_structsteal(kd
, "g", key_newmp(KCAT_SHARE
, dp
.g
));
652 key_setkeydata(k
->kf
, k
->k
, kd
);
657 static void alg_dh(keyopts
*k
)
664 /* --- Get the shared parameters --- */
667 key_split(&k
->k
->k
); kd
= k
->k
->k
;
672 /* --- Choose a suitable private key --- *
674 * Since %$g$% has order %$q$%, choose %$x < q$%.
677 x
= mprand_range(MP_NEWSEC
, q
, k
->r
, 0);
679 /* --- Compute the public key %$y = g^x \bmod p$% --- */
681 mpmont_create(&mm
, p
);
682 y
= mpmont_exp(&mm
, MP_NEW
, g
, x
);
685 /* --- Store everything away --- */
687 key_structsteal(kd
, "y", key_newmp(KCAT_PUB
, y
));
689 kkd
= key_newstruct();
690 key_structsteal(kkd
, "x", key_newmp(KCAT_PRIV
| KF_BURN
, x
));
691 dolock(k
, &kkd
, "private");
692 key_structsteal(kd
, "private", kkd
);
694 mp_drop(x
); mp_drop(y
);
697 static void alg_bbs(keyopts
*k
)
702 /* --- Sanity checking --- */
705 die(EXIT_FAILURE
, "no shared parameters for Blum-Blum-Shub keys");
709 /* --- Generate the BBS parameters --- */
711 if (bbs_gen(&bp
, k
->bits
, k
->r
, 0,
712 (k
->f
& f_quiet
) ?
0 : pgen_ev
, 0))
713 die(EXIT_FAILURE
, "Blum-Blum-Shub key generation failed");
715 /* --- Allrighty then --- */
717 kd
= key_newstruct();
718 key_structsteal(kd
, "n", key_newmp(KCAT_PUB
, bp
.n
));
720 kkd
= key_newstruct();
721 key_structsteal(kkd
, "p", key_newmp(KCAT_PRIV
| KF_BURN
, bp
.p
));
722 key_structsteal(kkd
, "q", key_newmp(KCAT_PRIV
| KF_BURN
, bp
.q
));
723 dolock(k
, &kkd
, "private");
724 key_structsteal(kd
, "private", kkd
);
725 key_setkeydata(k
->kf
, k
->k
, kd
);
731 static void alg_binparam(keyopts
*k
)
733 static const char *pl
[] = { "p", "q", "g", 0 };
734 if (!copyparam(k
, pl
)) {
741 /* --- Decide on a field --- */
743 if (!k
->bits
) k
->bits
= 128;
744 if (k
->curve
&& strcmp(k
->curve
, "list") == 0) {
746 LIST("Built-in binary fields", stdout
,
747 bintab
[i
].name
, bintab
[i
].name
);
751 if (k
->bits
<= 40) k
->curve
= "p1363-40";
752 else if (k
->bits
<= 56) k
->curve
= "p1363-56";
753 else if (k
->bits
<= 64) k
->curve
= "p1363-64";
754 else if (k
->bits
<= 80) k
->curve
= "p1363-80";
755 else if (k
->bits
<= 112) k
->curve
= "p1363-112";
756 else if (k
->bits
<= 128) k
->curve
= "p1363-128";
759 "no built-in binary fields provide %u-bit security",
764 /* --- Check it --- */
768 if (dhbin_parse(&qd
, &gb
))
769 die(EXIT_FAILURE
, "error in field spec: %s", qd
.e
);
771 die(EXIT_FAILURE
, "junk at end of field spec");
772 if ((g
= group_binary(&gb
)) == 0)
773 die(EXIT_FAILURE
, "invalid binary field");
774 if (!(k
->f
& f_quiet
) && (e
= G_CHECK(g
, &rand_global
)) != 0)
775 moan("WARNING! group check failed: %s", e
);
778 /* --- Write out the answer --- */
780 kd
= key_newstruct();
781 key_structsteal(kd
, "p", key_newmp(KCAT_SHARE
, gb
.p
));
782 key_structsteal(kd
, "q", key_newmp(KCAT_SHARE
, gb
.q
));
783 key_structsteal(kd
, "g", key_newmp(KCAT_SHARE
, gb
.g
));
787 key_setkeydata(k
->kf
, k
->k
, kd
);
792 static void alg_bin(keyopts
*k
)
799 /* --- Get the shared parameters --- */
802 key_split(&k
->k
->k
); kd
= k
->k
->k
;
807 /* --- Choose a suitable private key --- *
809 * Since %$g$% has order %$q$%, choose %$x < q$%.
812 x
= mprand_range(MP_NEWSEC
, q
, k
->r
, 0);
814 /* --- Compute the public key %$y = g^x \bmod p$% --- */
816 gfreduce_create(&r
, p
);
817 y
= gfreduce_exp(&r
, MP_NEW
, g
, x
);
818 gfreduce_destroy(&r
);
820 /* --- Store everything away --- */
822 key_structsteal(kd
, "y", key_newmp(KCAT_PUB
, y
));
824 kkd
= key_newstruct();
825 key_structsteal(kkd
, "x", key_newmp(KCAT_PRIV
| KF_BURN
, x
));
826 dolock(k
, &kkd
, "private");
827 key_structsteal(kd
, "private", kkd
);
829 mp_drop(x
); mp_drop(y
);
832 static void alg_ecparam(keyopts
*k
)
834 static const char *pl
[] = { "curve", 0 };
835 if (!copyparam(k
, pl
)) {
840 /* --- Decide on a curve --- */
842 if (!k
->bits
) k
->bits
= 256;
843 if (k
->curve
&& strcmp(k
->curve
, "list") == 0) {
845 LIST("Built-in elliptic curves", stdout
,
846 ectab
[i
].name
, ectab
[i
].name
);
850 if (k
->bits
<= 56) k
->curve
= "secp112r1";
851 else if (k
->bits
<= 64) k
->curve
= "secp128r1";
852 else if (k
->bits
<= 80) k
->curve
= "secp160r1";
853 else if (k
->bits
<= 96) k
->curve
= "secp192r1";
854 else if (k
->bits
<= 112) k
->curve
= "secp224r1";
855 else if (k
->bits
<= 128) k
->curve
= "secp256r1";
856 else if (k
->bits
<= 192) k
->curve
= "secp384r1";
857 else if (k
->bits
<= 256) k
->curve
= "secp521r1";
859 die(EXIT_FAILURE
, "no built-in curves provide %u-bit security",
863 /* --- Check it --- */
865 if ((e
= ec_getinfo(&ei
, k
->curve
)) != 0)
866 die(EXIT_FAILURE
, "error in curve spec: %s", e
);
867 if (!(k
->f
& f_quiet
) && (e
= ec_checkinfo(&ei
, k
->r
)) != 0)
868 moan("WARNING! curve check failed: %s", e
);
871 /* --- Write out the answer --- */
873 kd
= key_newstruct();
874 key_structsteal(kd
, "curve", key_newstring(KCAT_SHARE
, k
->curve
));
875 key_setkeydata(k
->kf
, k
->k
, kd
);
880 static void alg_ec(keyopts
*k
)
889 /* --- Get the curve --- */
892 key_split(&k
->k
->k
); kd
= k
->k
->k
;
893 if ((kkd
= key_structfind(kd
, "curve")) == 0)
894 die(EXIT_FAILURE
, "unexpected failure looking up subkey `curve')");
895 if ((kkd
->e
& KF_ENCMASK
) != KENC_STRING
)
896 die(EXIT_FAILURE
, "subkey `curve' is not a string");
897 if ((e
= ec_getinfo(&ei
, kkd
->u
.p
)) != 0)
898 die(EXIT_FAILURE
, "error in curve spec: %s", e
);
900 /* --- Invent a private exponent and compute the public key --- */
902 x
= mprand_range(MP_NEWSEC
, ei
.r
, k
->r
, 0);
903 ec_mul(ei
.c
, &p
, &ei
.g
, x
);
905 /* --- Store everything away --- */
907 key_structsteal(kd
, "p", key_newec(KCAT_PUB
, &p
));
909 kkd
= key_newstruct();
910 key_structsteal(kkd
, "x", key_newmp(KCAT_PRIV
| KF_BURN
, x
));
911 dolock(k
, &kkd
, "private");
912 key_structsteal(kd
, "private", kkd
);
920 /* --- The algorithm tables --- */
922 typedef struct keyalg
{
924 void (*proc
)(keyopts
*o
);
928 static keyalg algtab
[] = {
929 { "binary", alg_binary
, "Plain binary data" },
930 { "des", alg_des
, "Binary with DES-style parity" },
931 { "rsa", alg_rsa
, "RSA public-key encryption" },
932 { "bbs", alg_bbs
, "Blum-Blum-Shub generator" },
933 { "dsa", alg_dsa
, "DSA digital signatures" },
934 { "dsa-param", alg_dsaparam
, "DSA shared parameters" },
935 { "dh", alg_dh
, "Diffie-Hellman key exchange" },
936 { "dh-param", alg_dhparam
, "Diffie-Hellman parameters" },
937 { "bindh", alg_bin
, "DH over a binary field" },
938 { "bindh-param", alg_binparam
, "Binary-field DH parameters" },
939 { "ec-param", alg_ecparam
, "Elliptic curve parameters" },
940 { "ec", alg_ec
, "Elliptic curve crypto" },
944 /* --- @cmd_add@ --- */
946 static int cmd_add(int argc
, char *argv
[])
949 time_t exp
= KEXP_EXPIRE
;
950 uint32 kid
= rand_global
.ops
->word(&rand_global
);
951 const char *tag
= 0, *ptag
= 0;
953 keyalg
*alg
= algtab
;
954 const char *rtag
= 0;
955 const struct seedalg
*sa
= SEEDALG_DEFAULT
;
956 keyopts k
= { 0, 0, DSTR_INIT
, 0, 0, 0, 0, 0 };
957 const char *seed
= 0;
960 /* --- Parse options for the subcommand --- */
963 static struct option opt
[] = {
964 { "algorithm", OPTF_ARGREQ
, 0, 'a' },
965 { "bits", OPTF_ARGREQ
, 0, 'b' },
966 { "qbits", OPTF_ARGREQ
, 0, 'B' },
967 { "parameters", OPTF_ARGREQ
, 0, 'p' },
968 { "expire", OPTF_ARGREQ
, 0, 'e' },
969 { "comment", OPTF_ARGREQ
, 0, 'c' },
970 { "tag", OPTF_ARGREQ
, 0, 't' },
971 { "rand-id", OPTF_ARGREQ
, 0, 'R' },
972 { "key-id", OPTF_ARGREQ
, 0, 'I' },
973 { "curve", OPTF_ARGREQ
, 0, 'C' },
974 { "seedalg", OPTF_ARGREQ
, 0, 'A' },
975 { "seed", OPTF_ARGREQ
, 0, 's' },
976 { "newseed", OPTF_ARGREQ
, 0, 'n' },
977 { "lock", 0, 0, 'l' },
978 { "quiet", 0, 0, 'q' },
979 { "lim-lee", 0, 0, 'L' },
980 { "subgroup", 0, 0, 'S' },
981 { "kcdsa", 0, 0, 'K' },
984 int i
= mdwopt(argc
, argv
, "+a:b:B:p:e:c:t:R:I:C:A:s:n:lqrLKS",
989 /* --- Handle the various options --- */
993 /* --- Read an algorithm name --- */
997 size_t sz
= strlen(optarg
);
999 if (strcmp(optarg
, "list") == 0) {
1000 for (a
= algtab
; a
->name
; a
++)
1001 printf("%-10s %s\n", a
->name
, a
->help
);
1006 for (a
= algtab
; a
->name
; a
++) {
1007 if (strncmp(optarg
, a
->name
, sz
) == 0) {
1008 if (a
->name
[sz
] == 0) {
1012 die(EXIT_FAILURE
, "ambiguous algorithm name `%s'", optarg
);
1018 die(EXIT_FAILURE
, "unknown algorithm name `%s'", optarg
);
1021 /* --- Bits must be nonzero and a multiple of 8 --- */
1025 k
.bits
= strtoul(optarg
, &p
, 0);
1026 if (k
.bits
== 0 || *p
!= 0)
1027 die(EXIT_FAILURE
, "bad bitlength `%s'", optarg
);
1032 k
.qbits
= strtoul(optarg
, &p
, 0);
1033 if (k
.qbits
== 0 || *p
!= 0)
1034 die(EXIT_FAILURE
, "bad bitlength `%s'", optarg
);
1037 /* --- Parameter selection --- */
1043 /* --- Expiry dates get passed to @get_date@ for parsing --- */
1046 if (strcmp(optarg
, "forever") == 0)
1049 exp
= get_date(optarg
, 0);
1051 die(EXIT_FAILURE
, "bad expiry date `%s'", optarg
);
1055 /* --- Store comments without interpretation --- */
1058 if (key_chkcomment(optarg
))
1059 die(EXIT_FAILURE
, "bad comment string `%s'", optarg
);
1063 /* --- Elliptic curve parameters --- */
1069 /* --- Store tags --- */
1072 if (key_chkident(optarg
))
1073 die(EXIT_FAILURE
, "bad tag string `%s'", optarg
);
1080 /* --- Seeding --- */
1083 const struct seedalg
*ss
;
1084 if (strcmp(optarg
, "list") == 0) {
1085 printf("Seed algorithms:\n");
1086 for (ss
= seedtab
; ss
->p
; ss
++)
1087 printf(" %s\n", ss
->p
);
1090 if (seed
) die(EXIT_FAILURE
, "seed already set -- put -A first");
1092 for (ss
= seedtab
; ss
->p
; ss
++) {
1093 if (strcmp(optarg
, ss
->p
) == 0)
1097 die(EXIT_FAILURE
, "seed algorithm `%s' not known", optarg
);
1104 if (seed
) die(EXIT_FAILURE
, "seed already set");
1105 c
= base64_class
.decoder(CDCF_IGNEQPAD
);
1106 if ((rc
= c
->ops
->code(c
, optarg
, strlen(optarg
), &d
)) != 0 ||
1107 (rc
= c
->ops
->code(c
, 0, 0, &d
)) != 0)
1108 die(EXIT_FAILURE
, "invalid seed base64: %s", codec_strerror(rc
));
1110 k
.r
= sa
->gen(d
.buf
, d
.len
);
1119 unsigned n
= strtoul(optarg
, &p
, 0);
1120 if (n
== 0 || *p
!= 0 || n
% 8 != 0)
1121 die(EXIT_FAILURE
, "bad seed length `%s'", optarg
);
1122 if (seed
) die(EXIT_FAILURE
, "seed already set");
1125 rand_get(RAND_GLOBAL
, p
, n
);
1126 c
= base64_class
.encoder(0, "", 0);
1127 c
->ops
->code(c
, p
, n
, &d
); c
->ops
->code(c
, 0, 0, &d
);
1130 k
.r
= sa
->gen(p
, n
);
1133 /* --- Key id --- */
1140 id
= strtoul(optarg
, &p
, 16);
1141 if (errno
|| *p
|| id
> MASK32
)
1142 die(EXIT_FAILURE
, "bad key-id `%s'", optarg
);
1146 /* --- Other flags --- */
1167 /* --- Other things are bogus --- */
1175 /* --- Various sorts of bogosity --- */
1177 if ((k
.f
& f_bogus
) || optind
+ 1 > argc
) {
1179 "Usage: add [OPTIONS] TYPE [ATTR...]");
1181 if (key_chkident(argv
[optind
]))
1182 die(EXIT_FAILURE
, "bad key type `%s'", argv
[optind
]);
1184 /* --- Set up various bits of the state --- */
1186 if (exp
== KEXP_EXPIRE
)
1187 exp
= time(0) + 14 * 24 * 60 * 60;
1189 /* --- Open the file and create the basic key block --- *
1191 * Keep on generating keyids until one of them doesn't collide.
1194 doopen(&f
, KOPEN_WRITE
);
1197 /* --- Key the generator --- */
1203 if ((err
= key_new(&f
, kid
, argv
[optind
], exp
, &k
.k
)) == 0)
1205 else if (err
!= KERR_DUPID
)
1206 die(EXIT_FAILURE
, "error adding new key: %s", key_strerror(err
));
1209 /* --- Set various simple attributes --- */
1214 if (k
.f
& f_retag
) {
1215 if ((kk
= key_bytag(&f
, tag
)) != 0 &&
1217 strcmp(kk
->tag
, tag
) == 0)
1218 key_settag(&f
, kk
, 0);
1220 if ((err
= key_settag(&f
, k
.k
, tag
)) != 0)
1221 die(EXIT_FAILURE
, "error setting key tag: %s", key_strerror(err
));
1225 int err
= key_setcomment(&f
, k
.k
, c
);
1227 die(EXIT_FAILURE
, "error setting key comment: %s", key_strerror(err
));
1230 setattr(&f
, k
.k
, argv
+ optind
+ 1);
1232 key_putattr(&f
, k
.k
, "genseed", seed
);
1233 key_putattr(&f
, k
.k
, "seedalg", sa
->p
);
1236 key_fulltag(k
.k
, &k
.tag
);
1238 /* --- Find the parameter key --- */
1241 if ((k
.p
= key_bytag(&f
, ptag
)) == 0)
1242 die(EXIT_FAILURE
, "parameter key `%s' not found", ptag
);
1243 if ((k
.p
->k
->e
& KF_ENCMASK
) != KENC_STRUCT
)
1244 die(EXIT_FAILURE
, "parameter key `%s' is not structured", ptag
);
1247 /* --- Now generate the actual key data --- */
1253 dstr_destroy(&k
.tag
);
1258 /*----- Key listing -------------------------------------------------------*/
1260 /* --- Listing options --- */
1262 typedef struct listopts
{
1263 const char *tfmt
; /* Date format (@strftime@-style) */
1264 int v
; /* Verbosity level */
1265 unsigned f
; /* Various flags */
1266 time_t t
; /* Time now (for key expiry) */
1267 key_filter kf
; /* Filter for matching keys */
1270 /* --- Listing flags --- */
1272 #define f_newline 2u /* Write newline before next entry */
1273 #define f_attr 4u /* Written at least one attribute */
1274 #define f_utc 8u /* Emit UTC time, not local time */
1276 /* --- @showkeydata@ --- *
1278 * Arguments: @key_data *k@ = pointer to key to write
1279 * @int ind@ = indentation level
1280 * @listopts *o@ = listing options
1281 * @dstr *d@ = tag string for this subkey
1285 * Use: Emits a piece of key data in a human-readable format.
1288 static void showkeydata(key_data
*k
, int ind
, listopts
*o
, dstr
*d
)
1290 #define INDENT(i) do { \
1292 for (_i = 0; _i < (i); _i++) { \
1297 switch (k
->e
& KF_ENCMASK
) {
1299 /* --- Binary key data --- *
1301 * Emit as a simple hex dump.
1305 const octet
*p
= k
->u
.k
.k
;
1306 const octet
*l
= p
+ k
->u
.k
.sz
;
1309 fputs(" {", stdout
);
1314 } else if (sz
% 8 == 0)
1318 printf("%02x", *p
++);
1323 fputs("}\n", stdout
);
1326 /* --- Encrypted data --- *
1328 * If the user is sufficiently keen, ask for a passphrase and decrypt the
1329 * key. Otherwise just say that it's encrypted and move on.
1334 fputs(" encrypted\n", stdout
);
1337 if (key_punlock(&kd
, k
, d
->buf
))
1338 printf(" <failed to unlock %s>\n", d
->buf
);
1340 fputs(" encrypted", stdout
);
1341 showkeydata(kd
, ind
, o
, d
);
1347 /* --- Integer keys --- *
1349 * Emit as a large integer in decimal. This makes using the key in
1350 * `calc' or whatever easier.
1355 mp_writefile(k
->u
.m
, stdout
, 10);
1359 /* --- Strings --- */
1362 printf(" `%s'\n", k
->u
.p
);
1365 /* --- Elliptic curve points --- */
1368 if (EC_ATINF(&k
->u
.e
))
1369 fputs(" inf\n", stdout
);
1371 fputs(" 0x", stdout
); mp_writefile(k
->u
.e
.x
, stdout
, 16);
1372 fputs(", 0x", stdout
); mp_writefile(k
->u
.e
.y
, stdout
, 16);
1377 /* --- Structured keys --- *
1379 * Just iterate over the subkeys.
1387 fputs(" {\n", stdout
);
1388 for (key_mksubkeyiter(&i
, k
); key_nextsubkey(&i
, &tag
, &k
); ) {
1389 if (!key_match(k
, &o
->kf
))
1392 printf("%s =", tag
);
1394 dstr_putf(d
, ".%s", tag
);
1395 showkeydata(k
, ind
+ 2, o
, d
);
1398 fputs("}\n", stdout
);
1405 /* --- @showkey@ --- *
1407 * Arguments: @key *k@ = pointer to key to show
1408 * @listopts *o@ = pointer to listing options
1412 * Use: Emits a listing of a particular key.
1415 static void showkey(key
*k
, listopts
*o
)
1417 char ebuf
[24], dbuf
[24];
1420 /* --- Skip the key if the filter doesn't match --- */
1422 if (!key_match(k
->k
, &o
->kf
))
1425 /* --- Sort out the expiry and deletion times --- */
1427 if (KEY_EXPIRED(o
->t
, k
->exp
))
1428 strcpy(ebuf
, "expired");
1429 else if (k
->exp
== KEXP_FOREVER
)
1430 strcpy(ebuf
, "forever");
1432 tm
= (o
->f
& f_utc
) ?
gmtime(&k
->exp
) : localtime(&k
->exp
);
1433 strftime(ebuf
, sizeof(ebuf
), o
->tfmt
, tm
);
1436 if (KEY_EXPIRED(o
->t
, k
->del
))
1437 strcpy(dbuf
, "deleted");
1438 else if (k
->del
== KEXP_FOREVER
)
1439 strcpy(dbuf
, "forever");
1441 tm
= (o
->f
& f_utc
) ?
gmtime(&k
->del
) : localtime(&k
->del
);
1442 strftime(dbuf
, sizeof(dbuf
), o
->tfmt
, tm
);
1445 /* --- If in compact format, just display and quit --- */
1448 if (!(o
->f
& f_newline
)) {
1449 printf("%8s %-20s %-20s %-10s %s\n",
1450 "Id", "Tag", "Type", "Expire", "Delete");
1452 printf("%08lx %-20s %-20s %-10s %s\n",
1453 (unsigned long)k
->id
, k
->tag ? k
->tag
: "<none>",
1454 k
->type
, ebuf
, dbuf
);
1459 /* --- Display the standard header --- */
1461 if (o
->f
& f_newline
)
1462 fputc('\n', stdout
);
1463 printf("keyid: %08lx\n", (unsigned long)k
->id
);
1464 printf("tag: %s\n", k
->tag ? k
->tag
: "<none>");
1465 printf("type: %s\n", k
->type
);
1466 printf("expiry: %s\n", ebuf
);
1467 printf("delete: %s\n", dbuf
);
1468 printf("comment: %s\n", k
->c ? k
->c
: "<none>");
1470 /* --- Display the attributes --- */
1474 const char *av
, *an
;
1477 printf("attributes:");
1478 for (key_mkattriter(&i
, k
); key_nextattr(&i
, &an
, &av
); ) {
1479 printf("\n %s = %s", an
, av
);
1483 fputc('\n', stdout
);
1488 /* --- If dumping requested, dump the raw key data --- */
1492 fputs("key:", stdout
);
1494 showkeydata(k
->k
, 0, o
, &d
);
1501 /* --- @cmd_list@ --- */
1503 static int cmd_list(int argc
, char *argv
[])
1507 listopts o
= { 0, 0, 0, 0, { 0, 0 } };
1509 /* --- Parse subcommand options --- */
1512 static struct option opt
[] = {
1513 { "quiet", 0, 0, 'q' },
1514 { "verbose", 0, 0, 'v' },
1515 { "utc", 0, 0, 'u' },
1516 { "filter", OPTF_ARGREQ
, 0, 'f' },
1519 int i
= mdwopt(argc
, argv
, "+uqvf:", opt
, 0, 0, 0);
1536 int e
= key_readflags(optarg
, &p
, &o
.kf
.f
, &o
.kf
.m
);
1538 die(EXIT_FAILURE
, "bad filter string `%s'", optarg
);
1547 die(EXIT_FAILURE
, "Usage: list [-uqv] [-f FILTER] [TAG...]");
1549 /* --- Open the key file --- */
1551 doopen(&f
, KOPEN_READ
);
1554 /* --- Set up the time format --- */
1557 o
.tfmt
= "%Y-%m-%d";
1558 else if (o
.f
& f_utc
)
1559 o
.tfmt
= "%Y-%m-%d %H:%M:%S UTC";
1561 o
.tfmt
= "%Y-%m-%d %H:%M:%S %Z";
1563 /* --- If specific keys were requested use them, otherwise do all --- *
1565 * Some day, this might turn into a wildcard match.
1568 if (optind
< argc
) {
1570 if ((k
= key_bytag(&f
, argv
[optind
])) != 0)
1573 moan("key `%s' not found", argv
[optind
]);
1577 } while (optind
< argc
);
1580 for (key_mkiter(&i
, &f
); (k
= key_next(&i
)) != 0; )
1588 return (EXIT_FAILURE
);
1593 /*----- Command implementation --------------------------------------------*/
1595 /* --- @cmd_expire@ --- */
1597 static int cmd_expire(int argc
, char *argv
[])
1605 die(EXIT_FAILURE
, "Usage: expire TAG...");
1606 doopen(&f
, KOPEN_WRITE
);
1607 for (i
= 1; i
< argc
; i
++) {
1608 if ((k
= key_bytag(&f
, argv
[i
])) != 0)
1611 moan("key `%s' not found", argv
[i
]);
1619 /* --- @cmd_delete@ --- */
1621 static int cmd_delete(int argc
, char *argv
[])
1629 die(EXIT_FAILURE
, "Usage: delete TAG...");
1630 doopen(&f
, KOPEN_WRITE
);
1631 for (i
= 1; i
< argc
; i
++) {
1632 if ((k
= key_bytag(&f
, argv
[i
])) != 0)
1635 moan("key `%s' not found", argv
[i
]);
1643 /* --- @cmd_setattr@ --- */
1645 static int cmd_setattr(int argc
, char *argv
[])
1651 die(EXIT_FAILURE
, "Usage: setattr TAG ATTR...");
1652 doopen(&f
, KOPEN_WRITE
);
1653 if ((k
= key_bytag(&f
, argv
[1])) == 0)
1654 die(EXIT_FAILURE
, "key `%s' not found", argv
[1]);
1655 setattr(&f
, k
, argv
+ 2);
1660 /* --- @cmd_getattr@ --- */
1662 static int cmd_getattr(int argc
, char *argv
[])
1670 die(EXIT_FAILURE
, "Usage: getattr TAG ATTR");
1671 doopen(&f
, KOPEN_READ
);
1672 if ((k
= key_bytag(&f
, argv
[1])) == 0)
1673 die(EXIT_FAILURE
, "key `%s' not found", argv
[1]);
1675 if ((p
= key_getattr(&f
, k
, argv
[2])) == 0)
1676 die(EXIT_FAILURE
, "no attribute `%s' for key `%s'", argv
[2], d
.buf
);
1683 /* --- @cmd_finger@ --- */
1685 static void fingerprint(key
*k
, const gchash
*ch
, const key_filter
*kf
)
1693 if (key_fingerprint(k
, h
, kf
)) {
1696 for (i
= 0; i
< ch
->hashsz
; i
++) {
1697 if (i
&& i
% 4 == 0)
1699 printf("%02x", p
[i
]);
1701 printf(" %s\n", d
.buf
);
1707 static int cmd_finger(int argc
, char *argv
[])
1711 const gchash
*ch
= &rmd160
;
1712 key_filter kf
= { KF_NONSECRET
, KF_NONSECRET
};
1715 static struct option opt
[] = {
1716 { "filter", OPTF_ARGREQ
, 0, 'f' },
1717 { "algorithm", OPTF_ARGREQ
, 0, 'a' },
1720 int i
= mdwopt(argc
, argv
, "+f:a:", opt
, 0, 0, 0);
1726 int err
= key_readflags(optarg
, &p
, &kf
.f
, &kf
.m
);
1728 die(EXIT_FAILURE
, "bad filter string `%s'", optarg
);
1731 if ((ch
= ghash_byname(optarg
)) == 0)
1732 die(EXIT_FAILURE
, "unknown hash algorithm `%s'", optarg
);
1740 argv
+= optind
; argc
-= optind
;
1742 die(EXIT_FAILURE
, "Usage: fingerprint [-f FILTER] [TAG...]");
1744 doopen(&f
, KOPEN_READ
);
1748 for (i
= 0; i
< argc
; i
++) {
1749 key
*k
= key_bytag(&f
, argv
[i
]);
1751 fingerprint(k
, ch
, &kf
);
1754 moan("key `%s' not found", argv
[i
]);
1760 for (key_mkiter(&i
, &f
); (k
= key_next(&i
)) != 0; )
1761 fingerprint(k
, ch
, &kf
);
1766 /* --- @cmd_verify@ --- */
1768 static unsigned xdigit(char c
)
1770 if ('A' <= c
&& c
<= 'Z') return (c
+ 10 - 'A');
1771 if ('a' <= c
&& c
<= 'z') return (c
+ 10 - 'a');
1772 if ('0' <= c
&& c
<= '9') return (c
- '0');
1776 static void unhexify(octet
*q
, char *p
, size_t n
)
1782 if (*p
== '-' || *p
== ':' || isspace((unsigned char)*p
)) {
1789 die(EXIT_FAILURE
, "hex string too short");
1790 if (!isxdigit((unsigned char)*p
))
1791 die(EXIT_FAILURE
, "bad hex string");
1793 die(EXIT_FAILURE
, "hex string too long");
1794 a
= (a
<< 4) | xdigit(*p
++);
1805 static int cmd_verify(int argc
, char *argv
[])
1809 const gchash
*ch
= &rmd160
;
1814 key_filter kf
= { KF_NONSECRET
, KF_NONSECRET
};
1817 static struct option opt
[] = {
1818 { "filter", OPTF_ARGREQ
, 0, 'f' },
1819 { "algorithm", OPTF_ARGREQ
, 0, 'a' },
1822 int i
= mdwopt(argc
, argv
, "+f:a:", opt
, 0, 0, 0);
1828 int err
= key_readflags(optarg
, &p
, &kf
.f
, &kf
.m
);
1830 die(EXIT_FAILURE
, "bad filter string `%s'", optarg
);
1833 if ((ch
= ghash_byname(optarg
)) == 0)
1834 die(EXIT_FAILURE
, "unknown hash algorithm `%s'", optarg
);
1842 argv
+= optind
; argc
-= optind
;
1843 if (rc
|| argc
!= 2)
1844 die(EXIT_FAILURE
, "Usage: verify [-f FILTER] TAG FINGERPRINT");
1846 doopen(&f
, KOPEN_READ
);
1848 if ((k
= key_bytag(&f
, argv
[0])) == 0)
1849 die(EXIT_FAILURE
, "key `%s' not found", argv
[0]);
1850 buf
= xmalloc(ch
->hashsz
);
1851 unhexify(buf
, argv
[1], ch
->hashsz
);
1853 if (!key_fingerprint(k
, h
, &kf
))
1854 die(EXIT_FAILURE
, "key has no fingerprintable components (as filtered)");
1855 fpr
= GH_DONE(h
, 0);
1856 if (memcmp(fpr
, buf
, ch
->hashsz
) != 0)
1857 die(EXIT_FAILURE
, "key fingerprint mismatch");
1862 /* --- @cmd_comment@ --- */
1864 static int cmd_comment(int argc
, char *argv
[])
1870 if (argc
< 2 || argc
> 3)
1871 die(EXIT_FAILURE
, "Usage: comment TAG [COMMENT]");
1872 doopen(&f
, KOPEN_WRITE
);
1873 if ((k
= key_bytag(&f
, argv
[1])) == 0)
1874 die(EXIT_FAILURE
, "key `%s' not found", argv
[1]);
1875 if ((err
= key_setcomment(&f
, k
, argv
[2])) != 0)
1876 die(EXIT_FAILURE
, "bad comment `%s': %s", argv
[2], key_strerror(err
));
1881 /* --- @cmd_tag@ --- */
1883 static int cmd_tag(int argc
, char *argv
[])
1892 static struct option opt
[] = {
1893 { "retag", 0, 0, 'r' },
1896 int i
= mdwopt(argc
, argv
, "+r", opt
, 0, 0, 0);
1909 argv
+= optind
; argc
-= optind
;
1910 if (argc
< 1 || argc
> 2 || rc
)
1911 die(EXIT_FAILURE
, "Usage: tag [-r] TAG [NEW-TAG]");
1912 doopen(&f
, KOPEN_WRITE
);
1913 if (flags
& f_retag
) {
1914 if ((k
= key_bytag(&f
, argv
[1])) != 0 && strcmp(k
->tag
, argv
[1]) == 0)
1915 key_settag(&f
, k
, 0);
1917 if ((k
= key_bytag(&f
, argv
[0])) == 0)
1918 die(EXIT_FAILURE
, "key `%s' not found", argv
[0]);
1919 if ((err
= key_settag(&f
, k
, argv
[1])) != 0)
1920 die(EXIT_FAILURE
, "bad tag `%s': %s", argv
[1], key_strerror(err
));
1925 /* --- @cmd_lock@ --- */
1927 static int cmd_lock(int argc
, char *argv
[])
1935 die(EXIT_FAILURE
, "Usage: lock QTAG");
1936 doopen(&f
, KOPEN_WRITE
);
1937 if (key_qtag(&f
, argv
[1], &d
, &k
, &kd
))
1938 die(EXIT_FAILURE
, "key `%s' not found", argv
[1]);
1939 if ((*kd
)->e
== KENC_ENCRYPT
&& key_punlock(kd
, 0, d
.buf
))
1940 die(EXIT_FAILURE
, "couldn't unlock key `%s'", d
.buf
);
1941 if (key_plock(kd
, 0, d
.buf
))
1942 die(EXIT_FAILURE
, "failed to lock key `%s'", d
.buf
);
1948 /* --- @cmd_unlock@ --- */
1950 static int cmd_unlock(int argc
, char *argv
[])
1958 die(EXIT_FAILURE
, "Usage: unlock QTAG");
1959 doopen(&f
, KOPEN_WRITE
);
1960 if (key_qtag(&f
, argv
[1], &d
, &k
, &kd
))
1961 die(EXIT_FAILURE
, "key `%s' not found", argv
[1]);
1962 if ((*kd
)->e
!= KENC_ENCRYPT
)
1963 die(EXIT_FAILURE
, "key `%s' is not encrypted", d
.buf
);
1964 if (key_punlock(kd
, 0, d
.buf
))
1965 die(EXIT_FAILURE
, "couldn't unlock key `%s'", d
.buf
);
1971 /* --- @cmd_extract@ --- */
1973 static int cmd_extract(int argc
, char *argv
[])
1979 key_filter kf
= { 0, 0 };
1981 const char *outfile
= 0;
1985 static struct option opt
[] = {
1986 { "filter", OPTF_ARGREQ
, 0, 'f' },
1989 int i
= mdwopt(argc
, argv
, "f:", opt
, 0, 0, 0);
1995 int err
= key_readflags(optarg
, &p
, &kf
.f
, &kf
.m
);
1997 die(EXIT_FAILURE
, "bad filter string `%s'", optarg
);
2005 argv
+= optind
; argc
-= optind
;
2007 die(EXIT_FAILURE
, "Usage: extract [-f FILTER] FILE [TAG...]");
2008 if (strcmp(*argv
, "-") == 0)
2012 dstr_putf(&d
, "%s.new", outfile
);
2013 if (!(fp
= fopen(d
.buf
, "w"))) {
2014 die(EXIT_FAILURE
, "couldn't open `%s' for writing: %s",
2015 d
.buf
, strerror(errno
));
2019 doopen(&f
, KOPEN_READ
);
2023 for (key_mkiter(&i
, &f
); (k
= key_next(&i
)) != 0; )
2024 key_extract(&f
, k
, fp
, &kf
);
2026 for (i
= 1; i
< argc
; i
++) {
2027 if ((k
= key_bytag(&f
, argv
[i
])) != 0)
2028 key_extract(&f
, k
, fp
, &kf
);
2030 moan("key `%s' not found", argv
[i
]);
2035 if (fclose(fp
) || (outfile
&& rename(d
.buf
, outfile
)))
2036 die(EXIT_FAILURE
, "error writing file: %s", strerror(errno
));
2042 /* --- @cmd_tidy@ --- */
2044 static int cmd_tidy(int argc
, char *argv
[])
2048 die(EXIT_FAILURE
, "Usage: tidy");
2049 doopen(&f
, KOPEN_WRITE
);
2050 f
.f
|= KF_MODIFIED
; /* Nasty hack */
2055 /* --- @cmd_merge@ --- */
2057 static int cmd_merge(int argc
, char *argv
[])
2063 die(EXIT_FAILURE
, "Usage: merge FILE");
2064 if (strcmp(argv
[1], "-") == 0)
2066 else if (!(fp
= fopen(argv
[1], "r"))) {
2067 die(EXIT_FAILURE
, "couldn't open `%s' for reading: %s",
2068 argv
[1], strerror(errno
));
2071 doopen(&f
, KOPEN_WRITE
);
2072 key_merge(&f
, argv
[1], fp
, key_moan
, 0);
2077 /* --- @cmd_show@ --- */
2081 listtab[i].name, listtab[i].name) \
2082 LI("Hash functions", hash, \
2083 ghashtab[i], ghashtab[i]->name) \
2084 LI("Elliptic curves", ec, \
2085 ectab[i].name, ectab[i].name) \
2086 LI("Prime Diffie-Hellman groups", dh, \
2087 ptab[i].name, ptab[i].name) \
2088 LI("Binary Diffie-Hellman groups", bindh, \
2089 bintab[i].name, bintab[i].name) \
2090 LI("Key-generation algorithms", keygen, \
2091 algtab[i].name, algtab[i].name) \
2092 LI("Random seeding algorithms", seed, \
2093 seedtab[i].p, seedtab[i].p)
2095 MAKELISTTAB(listtab
, LISTS
)
2097 static int cmd_show(int argc
, char *argv
[])
2099 return (displaylists(listtab
, argv
+ 1));
2102 /*----- Main command table ------------------------------------------------*/
2104 static int cmd_help(int argc
, char *argv
[]);
2106 static cmd cmds
[] = {
2107 { "help", cmd_help
, "help [COMMAND...]" },
2108 { "show", cmd_show
, "show [ITEM...]" },
2109 { "list", cmd_list
, "list [-uqv] [-f FILTER] [TAG...]", "\
2112 -u, --utc Display expiry times etc. in UTC, not local time.\n\
2113 -q, --quiet Show less information.\n\
2114 -v, --verbose Show more information.\n\
2116 { "fingerprint", cmd_finger
, "fingerprint [-f FILTER] [TAG...]", "\
2119 -f, --filter=FILT Only hash key components matching FILT.\n\
2120 -a, --algorithm=HASH Use the named HASH algorithm.\n\
2121 ($ show hash for list.)\n\
2123 { "verify", cmd_verify
, "verify [-f FILTER] TAG FINGERPRINT", "\
2126 -f, --filter=FILT Only hash key components matching FILT.\n\
2127 -a, --algorithm=HASH Use the named HASH algorithm.\n\
2128 ($ show hash for list.)\n\
2130 { "extract", cmd_extract
, "extract [-f FILTER] FILE [TAG...]", "\
2133 -f, --filter=FILT Only extract key components matching FILT.\n\
2135 { "merge", cmd_merge
, "merge FILE" },
2136 { "expire", cmd_expire
, "expire TAG..." },
2137 { "delete", cmd_delete
, "delete TAG..." },
2138 { "setattr", cmd_setattr
, "setattr TAG ATTR..." },
2139 { "getattr", cmd_getattr
, "getattr TAG ATTR" },
2140 { "comment", cmd_comment
, "comment TAG [COMMENT]" },
2141 { "lock", cmd_lock
, "lock QTAG" },
2142 { "unlock", cmd_unlock
, "unlock QTAG" },
2143 { "tag", cmd_tag
, "tag [-r] TAG [NEW-TAG]", "\
2146 -r, --retag Untag any key currently called new-tag.\n\
2148 { "tidy", cmd_tidy
, "tidy" },
2150 "add [-OPTIONS] TYPE [ATTR...]\n\
2151 Options: [-lqrLKS] [-a ALG] [-bB BITS] [-p PARAM] [-R TAG]\n\
2152 [-A SEEDALG] [-s SEED] [-n BITS] [-I KEYID]\n\
2153 [-e EXPIRE] [-t TAG] [-c COMMENT]", "\
2156 -a, --algorithm=ALG Generate keys suitable for ALG.\n\
2157 ($ show keygen for list.)\n\
2158 -b, --bits=N Generate an N-bit key.\n\
2159 -B, --qbits=N Use an N-bit subgroup or factors.\n\
2160 -p, --parameters=TAG Get group parameters from TAG.\n\
2161 -C, --curve=NAME Use elliptic curve or DH group NAME.\n\
2162 ($ show ec or $ show dh for list.)\n\
2163 -A, --seedalg=ALG Use pseudorandom generator ALG to generate key.\n\
2164 ($ show seed for list.)\n\
2165 -s, --seed=BASE64 Use Base64-encoded string BASE64 as seed.\n\
2166 -n, --newseed=COUNT Generate new COUNT-bit seed.\n\
2167 -e, --expire=TIME Make the key expire after TIME.\n\
2168 -c, --comment=STRING Attach the command STRING to the key.\n\
2169 -t, --tag=TAG Tag the key with the name TAG.\n\
2170 -r, --retag Untag any key currently with that tag.\n\
2171 -R, --rand-id=TAG Use key named TAG for the random number generator.\n\
2172 -I, --key-id=ID Force the key-id for the new key.\n\
2173 -l, --lock Lock the generated key with a passphrase.\n\
2174 -q, --quiet Don't give progress indicators while working.\n\
2175 -L, --lim-lee Generate Lim-Lee primes for Diffie-Hellman groups.\n\
2176 -K, --kcdsa Generate KCDSA-style Lim-Lee primes for DH groups.\n\
2177 -S, --subgroup Use a prime-order subgroup for Diffie-Hellman.\n\
2182 static int cmd_help(int argc
, char *argv
[])
2184 sc_help(cmds
, stdout
, argv
+ 1);
2188 /*----- Main code ---------------------------------------------------------*/
2190 /* --- Helpful GNUy functions --- */
2192 static void usage(FILE *fp
)
2194 pquis(fp
, "Usage: $ [-k KEYRING] COMMAND [ARGS]\n");
2197 void version(FILE *fp
)
2199 pquis(fp
, "$, Catacomb version " VERSION
"\n");
2202 void help_global(FILE *fp
)
2206 Performs various simple key management operations.\n\
2208 Global command line options:\n\
2210 -h, --help [COMMAND...] Display this help text (or help for COMMANDs).\n\
2211 -v, --version Display version number.\n\
2212 -u, --usage Display short usage summary.\n\
2214 -k, --keyring=FILE Read and write keys in FILE.\n",
2220 * Arguments: @int argc@ = number of command line arguments
2221 * @char *argv[]@ = array of command line arguments
2223 * Returns: Nonzero on failure.
2225 * Use: Main program. Performs simple key management functions.
2228 int main(int argc
, char *argv
[])
2234 /* --- Initialization --- */
2239 /* --- Parse command line options --- */
2242 static struct option opt
[] = {
2244 /* --- Standard GNUy help options --- */
2246 { "help", 0, 0, 'h' },
2247 { "version", 0, 0, 'v' },
2248 { "usage", 0, 0, 'u' },
2250 /* --- Real live useful options --- */
2252 { "keyring", OPTF_ARGREQ
, 0, 'k' },
2254 /* --- Magic terminator --- */
2258 int i
= mdwopt(argc
, argv
, "+hvu k:", opt
, 0, 0, 0);
2264 /* --- GNU help options --- */
2267 sc_help(cmds
, stdout
, argv
+ optind
);
2276 /* --- Real useful options --- */
2282 /* --- Bogosity --- */
2290 /* --- Complain about excessive bogons --- */
2292 if (f
& f_bogus
|| optind
== argc
) {
2297 /* --- Initialize the Catacomb random number generator --- */
2299 rand_noisesrc(RAND_GLOBAL
, &noise_source
);
2300 rand_seed(RAND_GLOBAL
, 160);
2302 /* --- Dispatch to appropriate command handler --- */
2307 return (findcmd(cmds
, argv
[0])->cmd(argc
, argv
));
2310 /*----- That's all, folks -------------------------------------------------*/