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/** \ingroup rpmio signature
* \file rpmio/tkey.c
* Routines to handle RFC-2440 detached signatures.
*/
static int _debug = 0;
#include "system.h"
#include "rpmio_internal.h"
#include "debug.h"
static int doit(const char *sig, pgpDig dig, int printing)
{
const char *s, *t;
unsigned char * dec;
size_t declen;
char * enc;
int rc;
int i;
if (_debug)
fprintf(stderr, "*** sig is\n%s\n", sig);
if ((rc = b64decode(sig, (void **)&dec, &declen)) != 0) {
fprintf(stderr, "*** b64decode returns %d\n", rc);
return rc;
}
rc = pgpPrtPkts(dec, declen, dig, printing);
if (rc < 0) {
fprintf(stderr, "*** pgpPrtPkts returns %d\n", rc);
return rc;
}
if ((enc = b64encode(dec, declen)) == NULL) {
fprintf(stderr, "*** b64encode failed\n");
return rc;
}
if (_debug)
fprintf(stderr, "*** enc is\n%s\n", enc);
rc = 0;
for (i = 0, s = sig, t = enc; *s & *t; i++, s++, t++) {
if (*s == '\n') s++;
if (*t == '\n') t++;
if (*s == *t) continue;
fprintf(stderr, "??? %5d %02x != %02x '%c' != '%c'\n", i, (*s & 0xff), (*t & 0xff), *s, *t);
rc = 5;
}
return rc;
}
/* FIPS-186 test vectors. */
static const char * fips_p = "8df2a494492276aa3d25759bb06869cbeac0d83afb8d0cf7cbb8324f0d7882e5d0762fc5b7210eafc2e9adac32ab7aac49693dfbf83724c2ec0736ee31c80291";
static const char * fips_q = "c773218c737ec8ee993b4f2ded30f48edace915f";
static const char * fips_g = "626d027839ea0a13413163a55b4cb500299d5522956cefcb3bff10f399ce2c2e71cb9de5fa24babf58e5b79521925c9cc42e9f6f464b088cc572af53e6d78802";
static const char * fips_hm = "a9993e364706816aba3e25717850c26c9cd0d89d";
static const char * fips_y = "19131871d75b1612a819f29d78d1b0d7346f7aa77bb62a859bfd6c5675da9d212d3a36ef1672ef660b8c7c255cc0ec74858fba33f44c06699630a76b030ee333";
static const char * fips_r = "8bac1ab66410435cb7181f95b16ab97c92b341c0";
static const char * fips_s = "41e2345f1f56df2458f426d155b4ba2db6dcd8c8";
/* Secret key */
static const char * jbjSecretDSA =
"lQFvBDu6XHwRAwCTIHRgKeIlOFUIEZeJVYSrXn0eUrM5S8OF471tTc+IV7AwiXBR"
"zCFCan4lO1ipmoAipyN2A6ZX0HWOcWdYlWz2adxA7l8JNiZTzkemA562xwex2wLy"
"AQWVTtRN6jv0LccAoN4UWZkIvkT6tV918sEvDEggGARxAv9190RhrDq/GMqd+AHm"
"qWrRkrBRHDUBBL2fYEuU3gFekYrW5CDIN6s3Mcq/yUsvwHl7bwmoqbf2qabbyfnv"
"Y66ETOPKLcw67ggcptHXHcwlvpfJmHKpjK+ByzgauPXXbRAC+gKDjzXL0kAQxjmT"
"2D+16O4vI8Emlx2JVcGLlq/aWhspvQWIzN6PytA3iKZ6uzesrM7yXmqzgodZUsJh"
"1wwl/0K5OIJn/oD41UayU8RXNER8SzDYvDYsJymFRwE1s58lL/8DAwJUAllw1pdZ"
"WmBIoAvRiv7kE6hWfeCvZzdBVgrHYrp8ceUa3OdulGfYw/0sIzpEU0FfZmFjdG9y"
"OgAA30gJ4JMFKVfthnDCHHL+O8lNxykKBmrgVPLClue0KUplZmYgSm9obnNvbiAo"
"QVJTIE4zTlBRKSA8amJqQHJlZGhhdC5jb20+iFcEExECABcFAju6XHwFCwcKAwQD"
"FQMCAxYCAQIXgAAKCRCB0qVW2I6DmQU6AJ490bVWZuM4yCOh8MWj6qApCr1/gwCf"
"f3+QgXFXAeTyPtMmReyWxThABtE="
;
/* Public key */
static const char * jbjPublicDSA =
"mQFCBDu6XHwRAwCTIHRgKeIlOFUIEZeJVYSrXn0eUrM5S8OF471tTc+IV7AwiXBR"
"zCFCan4lO1ipmoAipyN2A6ZX0HWOcWdYlWz2adxA7l8JNiZTzkemA562xwex2wLy"
"AQWVTtRN6jv0LccAoN4UWZkIvkT6tV918sEvDEggGARxAv9190RhrDq/GMqd+AHm"
"qWrRkrBRHDUBBL2fYEuU3gFekYrW5CDIN6s3Mcq/yUsvwHl7bwmoqbf2qabbyfnv"
"Y66ETOPKLcw67ggcptHXHcwlvpfJmHKpjK+ByzgauPXXbRAC+gKDjzXL0kAQxjmT"
"2D+16O4vI8Emlx2JVcGLlq/aWhspvQWIzN6PytA3iKZ6uzesrM7yXmqzgodZUsJh"
"1wwl/0K5OIJn/oD41UayU8RXNER8SzDYvDYsJymFRwE1s58lL7QpSmVmZiBKb2hu"
"c29uIChBUlMgTjNOUFEpIDxqYmpAcmVkaGF0LmNvbT6IVwQTEQIAFwUCO7pcfAUL"
"BwoDBAMVAwIDFgIBAheAAAoJEIHSpVbYjoOZBToAn3TXaAI+bhg51EeyaiFip/6W"
"OVwBAJ44rTtNsgZBQxXISjB64CWxl4VaWQ=="
;
/* Signature */
static const char * abcSignatureDSA =
"iD8DBQA7vII+gdKlVtiOg5kRAvg4AJ0fV3gDBADobAnK2HOkV88bfmFMEgCeNysO"
"nP3dWWJnp0Pnbor7pIob4Dk="
;
int
main (int argc, char *argv[])
{
pgpDig dig;
int printing = 1;
int rc;
dig = pgpNewDig();
mpbzero(&dig->p); mpbsethex(&dig->p, fips_p);
mpbzero(&dig->q); mpbsethex(&dig->q, fips_q);
mpnzero(&dig->g); mpnsethex(&dig->g, fips_g);
mpnzero(&dig->y); mpnsethex(&dig->y, fips_y);
mpnzero(&dig->r); mpnsethex(&dig->r, fips_r);
mpnzero(&dig->s); mpnsethex(&dig->s, fips_s);
mpnzero(&dig->hm); mpnsethex(&dig->hm, fips_hm);
rc = dsavrfy(&dig->p, &dig->q, &dig->g, &dig->hm,
&dig->y, &dig->r, &dig->s);
fprintf(stderr, "=============================== DSA FIPS-186-1: rc %d\n", rc);
mpbfree(&dig->p);
mpbfree(&dig->q);
mpnfree(&dig->g);
mpnfree(&dig->y);
mpnfree(&dig->hm);
mpnfree(&dig->r);
mpnfree(&dig->s);
fprintf(stderr, "=============================== GPG Secret Key\n");
if ((rc = doit(jbjSecretDSA, dig, printing)) != 0)
fprintf(stderr, "==> FAILED: rc %d\n", rc);
fprintf(stderr, "=============================== GPG Public Key\n");
if ((rc = doit(jbjPublicDSA, dig, printing)) != 0)
fprintf(stderr, "==> FAILED: rc %d\n", rc);
fprintf(stderr, "=============================== GPG Signature of \"abc\"\n");
if ((rc = doit(abcSignatureDSA, dig, printing)) != 0)
fprintf(stderr, "==> FAILED: rc %d\n", rc);
{ DIGEST_CTX ctx = rpmDigestInit(PGPHASHALGO_SHA1, RPMDIGEST_NONE);
struct pgpDigParams_s * dsig = &dig->signature;
const char * digest = NULL;
size_t digestlen = 0;
const char * txt = "abc";
rpmDigestUpdate(ctx, txt, strlen(txt));
rpmDigestUpdate(ctx, dsig->hash, dsig->hashlen);
rpmDigestFinal(ctx, (void **)&digest, &digestlen, 1);
mpnzero(&dig->hm); mpnsethex(&dig->hm, digest);
fprintf(stderr, "\n hm = [ 160]: %s\n\n", digest);
if (digest) {
free((void *)digest);
digest = NULL;
}
}
rc = dsavrfy(&dig->p, &dig->q, &dig->g, &dig->hm,
&dig->y, &dig->r, &dig->s);
fprintf(stderr, "=============================== DSA verify: rc %d\n", rc);
mpbfree(&dig->p);
mpbfree(&dig->q);
mpnfree(&dig->g);
mpnfree(&dig->y);
mpnfree(&dig->hm);
mpnfree(&dig->r);
mpnfree(&dig->s);
dig = pgpFreeDig(dig);
return rc;
}
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