bbc230089ae98bd75e33f05b0b3539a16098ffe8
5 * (c) 2004 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
34 #include <mLib/report.h>
49 /*----- Main code ---------------------------------------------------------*/
51 /* --- RSA PKCS1 --- */
53 typedef struct rsap1_sigctx
{
59 static sig
*rsap1_siginit(key
*k
, void *kd
, const gchash
*hc
)
61 rsap1_sigctx
*rs
= CREATE(rsap1_sigctx
);
62 rsa_privcreate(&rs
->rp
, kd
, &rand_global
);
63 rs
->p1
.r
= &rand_global
;
65 rs
->p1
.epsz
= strlen(hc
->name
) + 1;
70 static int rsap1_sigdoit(sig
*s
, dstr
*d
)
72 rsap1_sigctx
*rs
= (rsap1_sigctx
*)s
;
74 mp
*m
= rsa_sign(&rs
->rp
, MP_NEW
,
75 GH_DONE(s
->h
, 0), GH_CLASS(s
->h
)->hashsz
,
76 pkcs1_sigencode
, &rs
->p1
);
78 n
= mp_octets(rs
->rp
.rp
->n
); dstr_ensure(d
, n
); mp_storeb(m
, d
->buf
, n
);
79 d
->len
+= n
; mp_drop(m
);
83 static const char *rsa_lengthcheck(mp
*n
)
85 if (mp_bits(n
) < 1024) return ("key too short");
89 static const char *rsap1_sigcheck(sig
*s
)
91 rsap1_sigctx
*rs
= (rsap1_sigctx
*)s
;
93 if ((e
= rsa_lengthcheck(rs
->rp
.rp
->n
)) != 0) return (e
);
97 static void rsap1_sigdestroy(sig
*s
)
99 rsap1_sigctx
*rs
= (rsap1_sigctx
*)s
;
100 rsa_privdestroy(&rs
->rp
);
104 static const sigops rsap1_sig
= {
105 rsa_privfetch
, sizeof(rsa_priv
),
106 rsap1_siginit
, rsap1_sigdoit
, rsap1_sigcheck
, rsap1_sigdestroy
109 typedef struct rsap1_vrfctx
{
115 static sig
*rsap1_vrfinit(key
*k
, void *kd
, const gchash
*hc
)
117 rsap1_vrfctx
*rv
= CREATE(rsap1_vrfctx
);
118 rsa_pubcreate(&rv
->rp
, kd
);
119 rv
->p1
.r
= &rand_global
;
120 rv
->p1
.ep
= hc
->name
;
121 rv
->p1
.epsz
= strlen(hc
->name
) + 1;
126 static int rsap1_vrfdoit(sig
*s
, dstr
*d
)
128 rsap1_vrfctx
*rv
= (rsap1_vrfctx
*)s
;
129 mp
*m
= mp_loadb(MP_NEW
, d
->buf
, d
->len
);
130 int rc
= rsa_verify(&rv
->rp
, m
,
131 GH_DONE(s
->h
, 0), GH_CLASS(s
->h
)->hashsz
,
132 0, pkcs1_sigdecode
, &rv
->p1
);
137 static const char *rsap1_vrfcheck(sig
*s
)
139 rsap1_vrfctx
*rv
= (rsap1_vrfctx
*)s
;
141 if ((e
= rsa_lengthcheck(rv
->rp
.rp
->n
)) != 0) return (e
);
145 static void rsap1_vrfdestroy(sig
*s
)
147 rsap1_vrfctx
*rv
= (rsap1_vrfctx
*)s
;
148 rsa_pubdestroy(&rv
->rp
);
152 static const sigops rsap1_vrf
= {
153 rsa_pubfetch
, sizeof(rsa_pub
),
154 rsap1_vrfinit
, rsap1_vrfdoit
, rsap1_vrfcheck
, rsap1_vrfdestroy
157 /* --- RSA PSS --- */
159 static const gccipher
*getmgf(key
*k
, const gchash
*hc
)
165 if ((mm
= key_getattr(0, k
, "mgf")) == 0) {
166 dstr_putf(&d
, "%s-mgf", hc
->name
);
169 if ((gc
= gcipher_byname(mm
)) == 0)
170 die(EXIT_FAILURE
, "unknown encryption scheme `%s'", mm
);
175 typedef struct rsapss_sigctx
{
181 static sig
*rsapss_siginit(key
*k
, void *kd
, const gchash
*hc
)
183 rsapss_sigctx
*rs
= CREATE(rsapss_sigctx
);
184 rsa_privcreate(&rs
->rp
, kd
, &rand_global
);
185 rs
->p
.r
= &rand_global
;
186 rs
->p
.cc
= getmgf(k
, hc
);
188 rs
->p
.ssz
= hc
->hashsz
;
192 static int rsapss_sigdoit(sig
*s
, dstr
*d
)
194 rsapss_sigctx
*rs
= (rsapss_sigctx
*)s
;
196 mp
*m
= rsa_sign(&rs
->rp
, MP_NEW
,
197 GH_DONE(s
->h
, 0), GH_CLASS(s
->h
)->hashsz
,
200 n
= mp_octets(rs
->rp
.rp
->n
); dstr_ensure(d
, n
); mp_storeb(m
, d
->buf
, n
);
201 d
->len
+= n
; mp_drop(m
);
205 static const char *rsapss_sigcheck(sig
*s
)
207 rsapss_sigctx
*rs
= (rsapss_sigctx
*)s
;
209 if ((e
= rsa_lengthcheck(rs
->rp
.rp
->n
)) != 0) return (e
);
213 static void rsapss_sigdestroy(sig
*s
)
215 rsapss_sigctx
*rs
= (rsapss_sigctx
*)s
;
216 rsa_privdestroy(&rs
->rp
);
220 static const sigops rsapss_sig
= {
221 rsa_privfetch
, sizeof(rsa_priv
),
222 rsapss_siginit
, rsapss_sigdoit
, rsapss_sigcheck
, rsapss_sigdestroy
225 typedef struct rsapss_vrfctx
{
231 static sig
*rsapss_vrfinit(key
*k
, void *kd
, const gchash
*hc
)
233 rsapss_vrfctx
*rv
= CREATE(rsapss_vrfctx
);
234 rsa_pubcreate(&rv
->rp
, kd
);
235 rv
->p
.r
= &rand_global
;
236 rv
->p
.cc
= getmgf(k
, hc
);
238 rv
->p
.ssz
= hc
->hashsz
;
242 static int rsapss_vrfdoit(sig
*s
, dstr
*d
)
244 rsapss_vrfctx
*rv
= (rsapss_vrfctx
*)s
;
245 mp
*m
= mp_loadb(MP_NEW
, d
->buf
, d
->len
);
246 int rc
= rsa_verify(&rv
->rp
, m
,
247 GH_DONE(s
->h
, 0), GH_CLASS(s
->h
)->hashsz
,
248 0, pss_decode
, &rv
->p
);
253 static const char *rsapss_vrfcheck(sig
*s
)
255 rsapss_vrfctx
*rv
= (rsapss_vrfctx
*)s
;
257 if ((e
= rsa_lengthcheck(rv
->rp
.rp
->n
)) != 0) return (e
);
261 static void rsapss_vrfdestroy(sig
*s
)
263 rsapss_vrfctx
*rv
= (rsapss_vrfctx
*)s
;
264 rsa_pubdestroy(&rv
->rp
);
268 static const sigops rsapss_vrf
= {
269 rsa_pubfetch
, sizeof(rsa_pub
),
270 rsapss_vrfinit
, rsapss_vrfdoit
, rsapss_vrfcheck
, rsapss_vrfdestroy
273 /* --- DSA and ECDSA --- */
275 typedef struct dsa_sigctx
{
280 static void dsa_initcommon(dsa_sigctx
*ds
, const gchash
*hc
,
283 ds
->g
.r
= &rand_global
;
289 static dsa_sigctx
*dsa_doinit(key
*k
, const gprime_param
*gp
,
290 mp
*y
, const gchash
*hc
,
291 group
*(*makegroup
)(const gprime_param
*),
294 dsa_sigctx
*ds
= CREATE(dsa_sigctx
);
298 if ((ds
->g
.g
= makegroup(gp
)) == 0)
299 die(EXIT_FAILURE
, "bad %s group in key `%s'", what
, t
.buf
);
300 ds
->g
.p
= G_CREATE(ds
->g
.g
);
301 if (G_FROMINT(ds
->g
.g
, ds
->g
.p
, y
))
302 die(EXIT_FAILURE
, "bad public key in key `%s'", t
.buf
);
303 dsa_initcommon(ds
, hc
, t
.buf
);
308 static dsa_sigctx
*ecdsa_doinit(key
*k
, const char *cstr
,
309 ec
*y
, const gchash
*hc
)
311 dsa_sigctx
*ds
= CREATE(dsa_sigctx
);
317 if ((e
= ec_getinfo(&ei
, cstr
)) != 0)
318 die(EXIT_FAILURE
, "bad curve in key `%s': %s", t
.buf
, e
);
319 ds
->g
.g
= group_ec(&ei
);
320 ds
->g
.p
= G_CREATE(ds
->g
.g
);
321 if (G_FROMEC(ds
->g
.g
, ds
->g
.p
, y
))
322 die(EXIT_FAILURE
, "bad public key in key `%s'", t
.buf
);
323 dsa_initcommon(ds
, hc
, t
.buf
);
328 static sig
*dsa_siginit(key
*k
, void *kd
, const gchash
*hc
)
331 dsa_sigctx
*ds
= dsa_doinit(k
, &dp
->dp
, dp
->y
, hc
, group_prime
, "prime");
332 ds
->g
.u
= MP_COPY(dp
->x
);
336 static sig
*bindsa_siginit(key
*k
, void *kd
, const gchash
*hc
)
339 dsa_sigctx
*ds
= dsa_doinit(k
, &dp
->dp
, dp
->y
, hc
, group_binary
, "binary");
340 ds
->g
.u
= MP_COPY(dp
->x
);
344 static sig
*ecdsa_siginit(key
*k
, void *kd
, const gchash
*hc
)
347 dsa_sigctx
*ds
= ecdsa_doinit(k
, ep
->cstr
, &ep
->p
, hc
);
348 ds
->g
.u
= MP_COPY(ep
->x
);
352 static int dsa_sigdoit(sig
*s
, dstr
*d
)
354 dsa_sigctx
*ds
= (dsa_sigctx
*)s
;
355 gdsa_sig ss
= GDSA_SIG_INIT
;
356 size_t n
= mp_octets(ds
->g
.g
->r
);
358 gdsa_sign(&ds
->g
, &ss
, GH_DONE(ds
->s
.h
, 0), 0);
359 dstr_ensure(d
, 2 * n
);
360 mp_storeb(ss
.r
, d
->buf
, n
);
361 mp_storeb(ss
.s
, d
->buf
+ n
, n
);
363 mp_drop(ss
.r
); mp_drop(ss
.s
);
367 static const char *dsa_sigcheck(sig
*s
)
369 dsa_sigctx
*ds
= (dsa_sigctx
*)s
;
371 if ((e
= G_CHECK(ds
->g
.g
, &rand_global
)) != 0)
373 if (group_check(ds
->g
.g
, ds
->g
.p
))
374 return ("public key not in subgroup");
378 static void dsa_sigdestroy(sig
*s
)
380 dsa_sigctx
*ds
= (dsa_sigctx
*)s
;
381 G_DESTROY(ds
->g
.g
, ds
->g
.p
);
383 G_DESTROYGROUP(ds
->g
.g
);
387 static const sigops dsa_sig
= {
388 dh_privfetch
, sizeof(dh_priv
),
389 dsa_siginit
, dsa_sigdoit
, dsa_sigcheck
, dsa_sigdestroy
392 static const sigops bindsa_sig
= {
393 dh_privfetch
, sizeof(dh_priv
),
394 bindsa_siginit
, dsa_sigdoit
, dsa_sigcheck
, dsa_sigdestroy
397 static const sigops ecdsa_sig
= {
398 ec_privfetch
, sizeof(ec_priv
),
399 ecdsa_siginit
, dsa_sigdoit
, dsa_sigcheck
, dsa_sigdestroy
402 static sig
*dsa_vrfinit(key
*k
, void *kd
, const gchash
*hc
)
405 dsa_sigctx
*ds
= dsa_doinit(k
, &dp
->dp
, dp
->y
, hc
, group_prime
, "prime");
409 static sig
*bindsa_vrfinit(key
*k
, void *kd
, const gchash
*hc
)
412 dsa_sigctx
*ds
= dsa_doinit(k
, &dp
->dp
, dp
->y
, hc
, group_binary
, "binary");
416 static sig
*ecdsa_vrfinit(key
*k
, void *kd
, const gchash
*hc
)
419 dsa_sigctx
*ds
= ecdsa_doinit(k
, ep
->cstr
, &ep
->p
, hc
);
423 static int dsa_vrfdoit(sig
*s
, dstr
*d
)
425 dsa_sigctx
*ds
= (dsa_sigctx
*)s
;
430 ss
.r
= mp_loadb(MP_NEW
, d
->buf
, n
);
431 ss
.s
= mp_loadb(MP_NEW
, d
->buf
+ n
, d
->len
- n
);
432 rc
= gdsa_verify(&ds
->g
, &ss
, GH_DONE(ds
->s
.h
, 0));
433 mp_drop(ss
.r
); mp_drop(ss
.s
);
437 static const sigops dsa_vrf
= {
438 dh_pubfetch
, sizeof(dh_pub
),
439 dsa_vrfinit
, dsa_vrfdoit
, dsa_sigcheck
, dsa_sigdestroy
442 static const sigops bindsa_vrf
= {
443 dh_pubfetch
, sizeof(dh_pub
),
444 bindsa_vrfinit
, dsa_vrfdoit
, dsa_sigcheck
, dsa_sigdestroy
447 static const sigops ecdsa_vrf
= {
448 ec_pubfetch
, sizeof(ec_pub
),
449 ecdsa_vrfinit
, dsa_vrfdoit
, dsa_sigcheck
, dsa_sigdestroy
452 /* --- KCDSA and ECKCDSA --- */
454 static void kcdsa_privkey(dsa_sigctx
*ds
, mp
*x
)
455 { ds
->g
.u
= mp_modinv(MP_NEW
, x
, ds
->g
.g
->r
); }
457 static void kcdsa_sethash(dsa_sigctx
*ds
, const gchash
*hc
)
458 { ds
->s
.h
= gkcdsa_beginhash(&ds
->g
); }
460 static sig
*kcdsa_siginit(key
*k
, void *kd
, const gchash
*hc
)
463 dsa_sigctx
*ds
= dsa_doinit(k
, &dp
->dp
, dp
->y
, hc
, group_prime
, "prime");
464 kcdsa_privkey(ds
, dp
->x
);
465 kcdsa_sethash(ds
, hc
);
469 static sig
*binkcdsa_siginit(key
*k
, void *kd
, const gchash
*hc
)
472 dsa_sigctx
*ds
= dsa_doinit(k
, &dp
->dp
, dp
->y
, hc
, group_binary
, "binary");
473 kcdsa_privkey(ds
, dp
->x
);
474 kcdsa_sethash(ds
, hc
);
478 static sig
*eckcdsa_siginit(key
*k
, void *kd
, const gchash
*hc
)
481 dsa_sigctx
*ds
= ecdsa_doinit(k
, ep
->cstr
, &ep
->p
, hc
);
482 kcdsa_privkey(ds
, ep
->x
);
483 kcdsa_sethash(ds
, hc
);
487 static int kcdsa_sigdoit(sig
*s
, dstr
*d
)
489 dsa_sigctx
*ds
= (dsa_sigctx
*)s
;
490 gkcdsa_sig ss
= GKCDSA_SIG_INIT
;
491 size_t hsz
= ds
->g
.h
->hashsz
, n
= mp_octets(ds
->g
.g
->r
);
493 gkcdsa_sign(&ds
->g
, &ss
, GH_DONE(ds
->s
.h
, 0), 0);
494 dstr_ensure(d
, hsz
+ n
);
495 memcpy(d
->buf
, ss
.r
, hsz
);
496 mp_storeb(ss
.s
, d
->buf
+ hsz
, n
);
498 xfree(ss
.r
); mp_drop(ss
.s
);
502 static const sigops kcdsa_sig
= {
503 dh_privfetch
, sizeof(dh_priv
),
504 kcdsa_siginit
, kcdsa_sigdoit
, dsa_sigcheck
, dsa_sigdestroy
507 static const sigops binkcdsa_sig
= {
508 dh_privfetch
, sizeof(dh_priv
),
509 binkcdsa_siginit
, kcdsa_sigdoit
, dsa_sigcheck
, dsa_sigdestroy
512 static const sigops eckcdsa_sig
= {
513 ec_privfetch
, sizeof(ec_priv
),
514 eckcdsa_siginit
, kcdsa_sigdoit
, dsa_sigcheck
, dsa_sigdestroy
517 static sig
*kcdsa_vrfinit(key
*k
, void *kd
, const gchash
*hc
)
520 dsa_sigctx
*ds
= dsa_doinit(k
, &dp
->dp
, dp
->y
, hc
, group_prime
, "prime");
521 kcdsa_sethash(ds
, hc
);
525 static sig
*binkcdsa_vrfinit(key
*k
, void *kd
, const gchash
*hc
)
528 dsa_sigctx
*ds
= dsa_doinit(k
, &dp
->dp
, dp
->y
, hc
, group_binary
, "binary");
529 kcdsa_sethash(ds
, hc
);
533 static sig
*eckcdsa_vrfinit(key
*k
, void *kd
, const gchash
*hc
)
536 dsa_sigctx
*ds
= ecdsa_doinit(k
, ep
->cstr
, &ep
->p
, hc
);
537 kcdsa_sethash(ds
, hc
);
541 static int kcdsa_vrfdoit(sig
*s
, dstr
*d
)
543 dsa_sigctx
*ds
= (dsa_sigctx
*)s
;
545 size_t hsz
= ds
->g
.h
->hashsz
, n
= d
->len
- hsz
;
550 ss
.r
= (octet
*)d
->buf
;
551 ss
.s
= mp_loadb(MP_NEW
, d
->buf
+ hsz
, n
);
552 rc
= gkcdsa_verify(&ds
->g
, &ss
, GH_DONE(ds
->s
.h
, 0));
557 static const sigops kcdsa_vrf
= {
558 dh_pubfetch
, sizeof(dh_pub
),
559 kcdsa_vrfinit
, kcdsa_vrfdoit
, dsa_sigcheck
, dsa_sigdestroy
562 static const sigops binkcdsa_vrf
= {
563 dh_pubfetch
, sizeof(dh_pub
),
564 binkcdsa_vrfinit
, kcdsa_vrfdoit
, dsa_sigcheck
, dsa_sigdestroy
567 static const sigops eckcdsa_vrf
= {
568 ec_pubfetch
, sizeof(ec_pub
),
569 eckcdsa_vrfinit
, kcdsa_vrfdoit
, dsa_sigcheck
, dsa_sigdestroy
572 /* --- Symmetric message authentication --- */
574 typedef struct mac_ctx
{
582 static sig
*mac_init(key
*k
, void *kd
, const gchash
*hc
)
592 m
->kp
.e
= KENC_BINARY
;
596 if ((mm
= key_getattr(0 /*yik*/, k
, "mac")) == 0) {
597 dstr_putf(&d
, "%s-hmac", hc
->name
);
600 if ((m
->mc
= gmac_byname(mm
)) == 0)
601 die(EXIT_FAILURE
, "unknown message authentication scheme `%s'", mm
);
604 if ((err
= key_unpack(&m
->kp
, kd
, &d
)) != 0) {
605 die(EXIT_FAILURE
, "failed to unpack symmetric key `%s': %s",
606 d
.buf
, key_strerror(err
));
610 if (keysz(m
->kb
.sz
, m
->mc
->keysz
) != m
->kb
.sz
) {
611 die(EXIT_FAILURE
, "bad key size %lu for `%s'",
612 (unsigned long)m
->kb
.sz
, m
->mc
->name
);
614 m
->m
= GM_KEY(m
->mc
, m
->kb
.k
, m
->kb
.sz
);
615 m
->s
.h
= GM_INIT(m
->m
);
619 static int mac_sigdoit(sig
*s
, dstr
*d
)
621 mac_ctx
*m
= (mac_ctx
*)s
;
623 dstr_ensure(d
, m
->mc
->hashsz
);
624 GH_DONE(m
->s
.h
, d
->buf
);
625 d
->len
+= m
->mc
->hashsz
;
629 static int mac_vrfdoit(sig
*s
, dstr
*d
)
631 mac_ctx
*m
= (mac_ctx
*)s
;
634 t
= GH_DONE(m
->s
.h
, 0);
635 if (d
->len
!= m
->mc
->hashsz
|| memcmp(d
->buf
, t
, d
->len
) != 0)
640 static const char *mac_check(sig
*s
) { return (0); }
642 static void mac_destroy(sig
*s
)
644 mac_ctx
*m
= (mac_ctx
*)s
;
646 key_unpackdone(&m
->kp
);
649 static const sigops mac_sig
= {
651 mac_init
, mac_sigdoit
, mac_check
, mac_destroy
654 static const sigops mac_vrf
= {
656 mac_init
, mac_vrfdoit
, mac_check
, mac_destroy
659 /* --- The switch table --- */
661 const struct sigtab sigtab
[] = {
662 { "rsapkcs1", &rsap1_sig
, &rsap1_vrf
, &sha
},
663 { "rsapss", &rsapss_sig
, &rsapss_vrf
, &sha
},
664 { "dsa", &dsa_sig
, &dsa_vrf
, &sha
},
665 { "bindsa", &bindsa_sig
, &bindsa_vrf
, &sha
},
666 { "ecdsa", &ecdsa_sig
, &ecdsa_vrf
, &sha
},
667 { "kcdsa", &kcdsa_sig
, &kcdsa_vrf
, &has160
},
668 { "binkcdsa", &binkcdsa_sig
, &binkcdsa_vrf
, &has160
},
669 { "eckcdsa", &eckcdsa_sig
, &eckcdsa_vrf
, &has160
},
670 { "mac", &mac_sig
, &mac_vrf
, &rmd160
},
674 /* --- @getsig@ --- *
676 * Arguments: @key *k@ = the key to load
677 * @const char *app@ = application name
678 * @int wantpriv@ = nonzero if we want to sign
680 * Returns: A signature-making thing.
682 * Use: Loads a key and starts hashing.
685 sig
*getsig(key
*k
, const char *app
, int wantpriv
)
687 const char *salg
, *halg
= 0;
694 const struct sigtab
*st
;
701 /* --- Setup stuff --- */
705 /* --- Get the signature algorithm --- *
707 * Take the attribute if it's there; otherwise use the key type.
711 if ((q
= key_getattr(0, k
, "sig")) != 0) {
714 } else if (strncmp(k
->type
, app
, n
) == 0 && k
->type
[n
] == '-') {
715 dstr_puts(&d
, k
->type
);
718 die(EXIT_FAILURE
, "no signature algorithm for key `%s'", t
.buf
);
720 /* --- Grab the hash algorithm --- *
722 * Grab it from the signature algorithm if it's there. But override that
723 * from the attribute.
727 if ((p
= strchr(p
, '/')) != 0) {
731 if ((q
= key_getattr(0, k
, "hash")) != 0)
734 /* --- Look up the algorithms in the table --- */
736 for (st
= sigtab
; st
->name
; st
++) {
737 if (strcmp(st
->name
, salg
) == 0)
740 die(EXIT_FAILURE
, "signature algorithm `%s' not found in key `%s'",
746 if ((ch
= ghash_byname(halg
)) == 0) {
747 die(EXIT_FAILURE
, "hash algorithm `%s' not found in key `%s'",
751 so
= wantpriv ? st
->signops
: st
->verifyops
;
753 /* --- Load the key --- */
760 kd
= xmalloc(so
->kdsz
);
761 kp
= key_fetchinit(so
->kf
, 0, kd
);
762 if ((e
= key_fetch(kp
, k
)) != 0) {
763 die(EXIT_FAILURE
, "error fetching key `%s': %s",
764 t
.buf
, key_strerror(e
));
767 s
= so
->init(k
, kd
, ch
);
775 /* --- Free stuff up --- */
782 /* --- @freesig@ --- *
784 * Arguments: @sig *s@ = signature-making thing
788 * Use: Frees up a signature-making thing
797 key_fetchdone(s
->kp
);
803 /*----- That's all, folks -------------------------------------------------*/