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rpm/beedigest.diff

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--- rpmio/digest.h.orig 2013-08-27 14:26:38.260872601 +0000
+++ rpmio/digest.h 2013-08-27 14:26:47.404872585 +0000
@@ -5,8 +5,7 @@
typedef struct pgpDigAlg_s * pgpDigAlg;
-typedef int (*setmpifunc)(pgpDigAlg digp,
- int num, const uint8_t *p, const uint8_t *pend);
+typedef int (*setmpifunc)(pgpDigAlg digp, int num, const uint8_t *p);
typedef int (*verifyfunc)(pgpDigAlg pgpkey, pgpDigAlg pgpsig,
uint8_t *hash, size_t hashlen, int hash_algo);
typedef void (*freefunc)(pgpDigAlg digp);
--- rpmio/digest_beecrypt.c.orig 2013-08-27 14:26:38.260872601 +0000
+++ rpmio/digest_beecrypt.c 2013-08-29 15:45:42.754558355 +0000
@@ -198,66 +198,6 @@ int rpmDigestFinal(DIGEST_CTX ctx, void
return 0;
}
-/**************************** helpers ************************************/
-
-static inline char * pgpHexCvt(char *t, const byte *s, int nbytes)
-{
- static char hex[] = "0123456789abcdef";
- while (nbytes-- > 0) {
- unsigned int i;
- i = *s++;
- *t++ = hex[ (i >> 4) & 0xf ];
- *t++ = hex[ (i ) & 0xf ];
- }
- *t = '\0';
- return t;
-}
-
-static const char * pgpMpiHex(const byte *p, const byte *pend)
-{
- static char prbuf[2048];
- char *t = prbuf;
- int nbytes = pgpMpiLen(p) - 2;
- if (nbytes > 1024 || nbytes > pend - (p + 2))
- return NULL;
- t = pgpHexCvt(t, p+2, nbytes);
- return prbuf;
-}
-
-static int pgpHexSet(int lbits, mpnumber * mpn, const byte * p, const byte * pend)
-{
- unsigned int mbits = pgpMpiBits(p);
- unsigned int nbits;
- unsigned int nbytes;
- char *t;
- unsigned int ix;
-
- nbits = (lbits > mbits ? lbits : mbits);
- nbytes = ((nbits + 7) >> 3);
- t = xmalloc(2*nbytes+1);
- ix = 2 * ((nbits - mbits) >> 3);
-
- if (ix > 0) memset(t, (int)'0', ix);
- strcpy(t+ix, pgpMpiHex(p, pend));
- (void) mpnsethex(mpn, t);
- t = _free(t);
- return 0;
-}
-
-static void pgpFreeSigRSADSA(pgpDigAlg sa)
-{
- if (sa->data)
- free(sa->data);
- sa->data = 0;
-}
-
-static void pgpFreeKeyRSADSA(pgpDigAlg sa)
-{
- if (sa->data)
- free(sa->data);
- sa->data = 0;
-}
-
/****************************** RSA **************************************/
@@ -267,45 +207,73 @@ struct pgpDigSigRSA_s {
struct pgpDigKeyRSA_s {
rsapk rsa_pk;
+ int nbytes;
};
-static int pgpSetSigMpiRSA(pgpDigAlg pgpsig, int num,
- const uint8_t *p, const uint8_t *pend)
+static int pgpSetSigMpiRSA(pgpDigAlg pgpsig, int num, const uint8_t *p)
{
struct pgpDigSigRSA_s *sig = pgpsig->data;
+ int mlen = pgpMpiLen(p) - 2;
int rc = 1;
+ if (!sig)
+ sig = pgpsig->data = xcalloc(1, sizeof(*sig));
+
switch (num) {
case 0:
- sig = pgpsig->data = xcalloc(1, sizeof(*sig));
- (void) mpnsethex(&sig->c, pgpMpiHex(p, pend));
- rc = 0;
+ if (!mpnsetbin(&sig->c, p + 2, mlen))
+ rc = 0;
break;
}
return rc;
}
-static int pgpSetKeyMpiRSA(pgpDigAlg pgpkey, int num,
- const uint8_t *p, const uint8_t *pend)
+static int pgpSetKeyMpiRSA(pgpDigAlg pgpkey, int num, const uint8_t *p)
{
struct pgpDigKeyRSA_s *key = pgpkey->data;
+ int mlen = pgpMpiLen(p) - 2;
int rc = 1;
if (!key)
key = pgpkey->data = xcalloc(1, sizeof(*key));
+
switch (num) {
case 0:
- (void) mpbsethex(&key->rsa_pk.n, pgpMpiHex(p, pend));
- rc = 0;
+ key->nbytes = mlen;
+ if (!mpbsetbin(&key->rsa_pk.n, p + 2, mlen))
+ rc = 0;
break;
case 1:
- (void) mpnsethex(&key->rsa_pk.e, pgpMpiHex(p, pend));
- rc = 0;
+ if (!mpnsetbin(&key->rsa_pk.e, p + 2, mlen))
+ rc = 0;
break;
}
return rc;
}
+static int pkcs1pad(mpnumber *rsahm, int nbytes, const char *prefix, uint8_t *hash, size_t hashlen)
+{
+ int datalen = strlen(prefix) / 2 + hashlen;
+ byte *buf, *bp;
+ int rc = 1;
+
+ if (nbytes < 4 + datalen)
+ return 1;
+ buf = xmalloc(nbytes);
+ memset(buf, 0xff, nbytes);
+ buf[0] = 0x00;
+ buf[1] = 0x01;
+ bp = buf + nbytes - datalen;
+ bp[-1] = 0;
+ for (; *prefix; prefix += 2)
+ *bp++ = (rnibble(prefix[0]) << 4) | rnibble(prefix[1]);
+ memcpy(bp, hash, hashlen);
+ if (!mpnsetbin(rsahm, buf, nbytes))
+ rc = 0;
+ buf = _free(buf);
+ return rc;
+}
+
static int pgpVerifySigRSA(pgpDigAlg pgpkey, pgpDigAlg pgpsig, uint8_t *hash, size_t hashlen, int hash_algo)
{
struct pgpDigKeyRSA_s *key = pgpkey->data;
@@ -340,28 +308,10 @@ static int pgpVerifySigRSA(pgpDigAlg pgp
return 1;
}
- /* Generate RSA modulus parameter. */
- { unsigned int nbits = MP_WORDS_TO_BITS(sig->c.size);
- unsigned int nb = (nbits + 7) >> 3;
- byte *buf, *bp;
+ memset(&rsahm, 0, sizeof(rsahm));
+ if (pkcs1pad(&rsahm, key->nbytes, prefix, hash, hashlen) != 0)
+ return 1;
- if (nb < 3)
- return 1;
- buf = xmalloc(nb);
- memset(buf, 0xff, nb);
- buf[0] = 0x00;
- buf[1] = 0x01;
- bp = buf + nb - strlen(prefix)/2 - hashlen - 1;
- if (bp < buf)
- return 1;
- *bp++ = 0;
- for (; *prefix; prefix += 2)
- *bp++ = (rnibble(prefix[0]) << 4) | rnibble(prefix[1]);
- memcpy(bp, hash, hashlen);
- mpnzero(&rsahm);
- (void) mpnsetbin(&rsahm, buf, nb);
- buf = _free(buf);
- }
#if HAVE_BEECRYPT_API_H
rc = rsavrfy(&key->rsa_pk.n, &key->rsa_pk.e, &sig->c, &rsahm) == 1 ? 0 : 1;
#else
@@ -371,6 +321,25 @@ static int pgpVerifySigRSA(pgpDigAlg pgp
return rc;
}
+static void pgpFreeSigRSA(pgpDigAlg pgpsig)
+{
+ struct pgpDigSigRSA_s *sig = pgpsig->data;
+ if (sig) {
+ mpnfree(&sig->c);
+ pgpsig->data = _free(sig);
+ }
+}
+
+static void pgpFreeKeyRSA(pgpDigAlg pgpkey)
+{
+ struct pgpDigKeyRSA_s *key = pgpkey->data;
+ if (key) {
+ mpbfree(&key->rsa_pk.n);
+ mpnfree(&key->rsa_pk.e);
+ pgpkey->data = _free(key);
+ }
+}
+
/****************************** DSA **************************************/
@@ -384,30 +353,35 @@ struct pgpDigKeyDSA_s {
mpbarrett q;
mpnumber g;
mpnumber y;
+ int qbytes;
};
-static int pgpSetSigMpiDSA(pgpDigAlg pgpsig, int num,
- const uint8_t *p, const uint8_t *pend)
+static int pgpSetSigMpiDSA(pgpDigAlg pgpsig, int num, const uint8_t *p)
{
struct pgpDigSigDSA_s *sig = pgpsig->data;
+ int mlen = pgpMpiLen(p) - 2;
int rc = 1;
+ if (!sig)
+ sig = pgpsig->data = xcalloc(1, sizeof(*sig));
+
switch (num) {
case 0:
- sig = pgpsig->data = xcalloc(1, sizeof(*sig));
- rc = pgpHexSet(160, &sig->r, p, pend);
+ if (!mpnsetbin(&sig->r, p + 2, mlen))
+ rc = 0;
break;
case 1:
- rc = pgpHexSet(160, &sig->s, p, pend);
+ if (!mpnsetbin(&sig->s, p + 2, mlen))
+ rc = 0;
break;
}
return rc;
}
-static int pgpSetKeyMpiDSA(pgpDigAlg pgpkey, int num,
- const uint8_t *p, const uint8_t *pend)
+static int pgpSetKeyMpiDSA(pgpDigAlg pgpkey, int num, const uint8_t *p)
{
struct pgpDigKeyDSA_s *key = pgpkey->data;
+ int mlen = pgpMpiLen(p) - 2;
int rc = 1;
if (!key)
@@ -415,20 +389,21 @@ static int pgpSetKeyMpiDSA(pgpDigAlg pgp
switch (num) {
case 0:
- mpbsethex(&key->p, pgpMpiHex(p, pend));
- rc = 0;
+ if (!mpbsetbin(&key->p, p + 2, mlen))
+ rc = 0;
break;
case 1:
- mpbsethex(&key->q, pgpMpiHex(p, pend));
- rc = 0;
+ key->qbytes = mlen;
+ if (!mpbsetbin(&key->q, p + 2, mlen))
+ rc = 0;
break;
case 2:
- mpnsethex(&key->g, pgpMpiHex(p, pend));
- rc = 0;
+ if (!mpnsetbin(&key->g, p + 2, mlen))
+ rc = 0;
break;
case 3:
- mpnsethex(&key->y, pgpMpiHex(p, pend));
- rc = 0;
+ if (!mpnsetbin(&key->y, p + 2, mlen))
+ rc = 0;
break;
}
return rc;
@@ -441,17 +416,41 @@ static int pgpVerifySigDSA(pgpDigAlg pgp
mpnumber hm;
int rc = 1;
- if (sig && key) {
+ if (sig && key && hashlen >= key->qbytes) {
mpnzero(&hm);
- mpnsetbin(&hm, hash, hashlen);
+ mpnsetbin(&hm, hash, key->qbytes);
rc = dsavrfy(&key->p, &key->q, &key->g, &hm, &key->y, &sig->r, &sig->s) == 1 ? 0 : 1;
mpnfree(&hm);
}
return rc;
}
-static int pgpSetMpiNULL(pgpDigAlg pgpkey, int num,
- const uint8_t *p, const uint8_t *pend)
+static void pgpFreeSigDSA(pgpDigAlg pgpsig)
+{
+ struct pgpDigSigDSA_s *sig = pgpsig->data;
+ if (sig) {
+ mpnfree(&sig->r);
+ mpnfree(&sig->s);
+ pgpsig->data = _free(sig);
+ }
+}
+
+static void pgpFreeKeyDSA(pgpDigAlg pgpkey)
+{
+ struct pgpDigKeyDSA_s *key = pgpkey->data;
+ if (key) {
+ mpbfree(&key->p);
+ mpbfree(&key->q);
+ mpnfree(&key->g);
+ mpnfree(&key->y);
+ pgpkey->data = _free(key);
+ }
+}
+
+
+/****************************** NULL **************************************/
+
+static int pgpSetMpiNULL(pgpDigAlg pgpkey, int num, const uint8_t *p)
{
return 1;
}
@@ -469,12 +468,12 @@ pgpDigAlg pgpPubkeyNew(int algo)
switch (algo) {
case PGPPUBKEYALGO_RSA:
ka->setmpi = pgpSetKeyMpiRSA;
- ka->free = pgpFreeKeyRSADSA;
+ ka->free = pgpFreeKeyRSA;
ka->mpis = 2;
break;
case PGPPUBKEYALGO_DSA:
ka->setmpi = pgpSetKeyMpiDSA;
- ka->free = pgpFreeKeyRSADSA;
+ ka->free = pgpFreeKeyDSA;
ka->mpis = 4;
break;
default:
@@ -495,13 +494,13 @@ pgpDigAlg pgpSignatureNew(int algo)
switch (algo) {
case PGPPUBKEYALGO_RSA:
sa->setmpi = pgpSetSigMpiRSA;
- sa->free = pgpFreeSigRSADSA;
+ sa->free = pgpFreeSigRSA;
sa->verify = pgpVerifySigRSA;
sa->mpis = 1;
break;
case PGPPUBKEYALGO_DSA:
sa->setmpi = pgpSetSigMpiDSA;
- sa->free = pgpFreeSigRSADSA;
+ sa->free = pgpFreeSigDSA;
sa->verify = pgpVerifySigDSA;
sa->mpis = 2;
break;
--- rpmio/digest_nss.c.orig 2013-08-27 14:26:38.260872601 +0000
+++ rpmio/digest_nss.c 2013-08-27 14:26:47.405872585 +0000
@@ -224,8 +224,7 @@ static SECOidTag getHashAlg(unsigned int
return SEC_OID_UNKNOWN;
}
-static int pgpMpiSet(unsigned int lbits, uint8_t *dest,
- const uint8_t * p, const uint8_t * pend)
+static int pgpMpiSet(unsigned int lbits, uint8_t *dest, const uint8_t * p)
{
unsigned int mbits = pgpMpiBits(p);
unsigned int nbits;
@@ -233,9 +232,6 @@ static int pgpMpiSet(unsigned int lbits,
uint8_t *t = dest;
unsigned int ix;
- if ((p + ((mbits+7) >> 3)) > pend)
- return 1;
-
if (mbits > lbits)
return 1;
@@ -250,14 +246,10 @@ static int pgpMpiSet(unsigned int lbits,
return 0;
}
-static SECItem *pgpMpiItem(PRArenaPool *arena, SECItem *item,
- const uint8_t *p, const uint8_t *pend)
+static SECItem *pgpMpiItem(PRArenaPool *arena, SECItem *item, const uint8_t *p)
{
size_t nbytes = pgpMpiLen(p)-2;
- if (p + nbytes + 2 > pend)
- return NULL;
-
if (item == NULL) {
if ((item=SECITEM_AllocItem(arena, item, nbytes)) == NULL)
return item;
@@ -313,8 +305,7 @@ static SECKEYPublicKey *pgpNewPublicKey(
#define DSA1_Q_BITS DSA_Q_BITS
#endif
-static int pgpSetSigMpiDSA(pgpDigAlg pgpsig, int num,
- const uint8_t *p, const uint8_t *pend)
+static int pgpSetSigMpiDSA(pgpDigAlg pgpsig, int num, const uint8_t *p)
{
SECItem *sig = pgpsig->data;
int lbits = DSA1_Q_BITS;
@@ -325,11 +316,11 @@ static int pgpSetSigMpiDSA(pgpDigAlg pgp
sig = pgpsig->data = SECITEM_AllocItem(NULL, NULL, DSA1_SIGNATURE_LEN);
if (sig) {
memset(sig->data, 0, DSA1_SIGNATURE_LEN);
- rc = pgpMpiSet(lbits, sig->data, p, pend);
+ rc = pgpMpiSet(lbits, sig->data, p);
}
break;
case 1:
- if (sig && pgpMpiSet(lbits, sig->data+DSA1_SUBPRIME_LEN, p, pend) == 0) {
+ if (sig && pgpMpiSet(lbits, sig->data+DSA1_SUBPRIME_LEN, p) == 0) {
SECItem *signew = SECITEM_AllocItem(NULL, NULL, 0);
if (signew && DSAU_EncodeDerSig(signew, sig) == SECSuccess) {
SECITEM_FreeItem(sig, PR_TRUE);
@@ -343,8 +334,7 @@ static int pgpSetSigMpiDSA(pgpDigAlg pgp
return rc;
}
-static int pgpSetKeyMpiDSA(pgpDigAlg pgpkey, int num,
- const uint8_t *p, const uint8_t *pend)
+static int pgpSetKeyMpiDSA(pgpDigAlg pgpkey, int num, const uint8_t *p)
{
SECItem *mpi = NULL;
SECKEYPublicKey *key = pgpkey->data;
@@ -355,16 +345,16 @@ static int pgpSetKeyMpiDSA(pgpDigAlg pgp
if (key) {
switch (num) {
case 0:
- mpi = pgpMpiItem(key->arena, &key->u.dsa.params.prime, p, pend);
+ mpi = pgpMpiItem(key->arena, &key->u.dsa.params.prime, p);
break;
case 1:
- mpi = pgpMpiItem(key->arena, &key->u.dsa.params.subPrime, p, pend);
+ mpi = pgpMpiItem(key->arena, &key->u.dsa.params.subPrime, p);
break;
case 2:
- mpi = pgpMpiItem(key->arena, &key->u.dsa.params.base, p, pend);
+ mpi = pgpMpiItem(key->arena, &key->u.dsa.params.base, p);
break;
case 3:
- mpi = pgpMpiItem(key->arena, &key->u.dsa.publicValue, p, pend);
+ mpi = pgpMpiItem(key->arena, &key->u.dsa.publicValue, p);
break;
}
}
@@ -389,21 +379,19 @@ static int pgpVerifySigDSA(pgpDigAlg pgp
return (rc != SECSuccess);
}
-static int pgpSetSigMpiRSA(pgpDigAlg pgpsig, int num,
- const uint8_t *p, const uint8_t *pend)
+static int pgpSetSigMpiRSA(pgpDigAlg pgpsig, int num, const uint8_t *p)
{
SECItem *sigitem = NULL;
if (num == 0) {
- sigitem = pgpMpiItem(NULL, pgpsig->data, p, pend);
+ sigitem = pgpMpiItem(NULL, pgpsig->data, p);
if (sigitem)
pgpsig->data = sigitem;
}
return (sigitem == NULL);
}
-static int pgpSetKeyMpiRSA(pgpDigAlg pgpkey, int num,
- const uint8_t *p, const uint8_t *pend)
+static int pgpSetKeyMpiRSA(pgpDigAlg pgpkey, int num, const uint8_t *p)
{
SECItem *kitem = NULL;
SECKEYPublicKey *key = pgpkey->data;
@@ -414,10 +402,10 @@ static int pgpSetKeyMpiRSA(pgpDigAlg pgp
if (key) {
switch (num) {
case 0:
- kitem = pgpMpiItem(key->arena, &key->u.rsa.modulus, p, pend);
+ kitem = pgpMpiItem(key->arena, &key->u.rsa.modulus, p);
break;
case 1:
- kitem = pgpMpiItem(key->arena, &key->u.rsa.publicExponent, p, pend);
+ kitem = pgpMpiItem(key->arena, &key->u.rsa.publicExponent, p);
break;
}
}
@@ -472,8 +460,7 @@ static void pgpFreeKeyRSADSA(pgpDigAlg k
ka->data = NULL;
}
-static int pgpSetMpiNULL(pgpDigAlg pgpkey, int num,
- const uint8_t *p, const uint8_t *pend)
+static int pgpSetMpiNULL(pgpDigAlg pgpkey, int num, const uint8_t *p)
{
return 1;
}
--- rpmio/rpmpgp.c.orig 2013-08-27 14:26:38.260872601 +0000
+++ rpmio/rpmpgp.c 2013-08-29 15:48:33.394558053 +0000
@@ -499,11 +499,15 @@ static int pgpPrtSigParams(pgpTag tag, u
int i;
pgpDigAlg sigalg = pgpSignatureNew(pubkey_algo);
- for (i = 0; p < pend && i < sigalg->mpis; i++, p += pgpMpiLen(p)) {
+ for (i = 0; i < sigalg->mpis && p + 2 <= pend; i++) {
+ int mpil = pgpMpiLen(p);
+ if (p + mpil > pend)
+ break;
if (sigtype == PGPSIGTYPE_BINARY || sigtype == PGPSIGTYPE_TEXT) {
- if (sigalg->setmpi(sigalg, i, p, pend))
+ if (sigalg->setmpi(sigalg, i, p))
break;
}
+ p += mpil;
}
/* Does the size and number of MPI's match our expectations? */
@@ -650,9 +654,13 @@ static int pgpPrtPubkeyParams(uint8_t pu
int i;
pgpDigAlg keyalg = pgpPubkeyNew(pubkey_algo);
- for (i = 0; p < pend && i < keyalg->mpis; i++, p += pgpMpiLen(p)) {
- if (keyalg->setmpi(keyalg, i, p, pend))
+ for (i = 0; i < keyalg->mpis && p + 2 <= pend; i++) {
+ int mpil = pgpMpiLen(p);
+ if (p + mpil > pend)
+ break;
+ if (keyalg->setmpi(keyalg, i, p))
break;
+ p += mpil;
}
/* Does the size and number of MPI's match our expectations? */
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