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This commit is contained in:
cinap_lenrek 2016-01-06 05:31:55 +01:00
commit dc96f164a2
1 changed files with 8 additions and 38 deletions
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46
sys/src/libsec/port/x509.c
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@ -130,8 +130,6 @@ static int is_oid(Elem* pe, Ints** poid);
static int is_string(Elem* pe, char** pstring);
static int is_time(Elem* pe, char** ptime);
static int decode(uchar* a, int alen, Elem* pelem);
static int decode_seq(uchar* a, int alen, Elist** pelist);
static int decode_value(uchar* a, int alen, int kind, int isconstr, Value* pval);
static int encode(Elem e, Bytes** pbytes);
static int oid_lookup(Ints* o, Ints** tab);
static void freevalfields(Value* v);
@ -194,37 +192,12 @@ static int
decode(uchar* a, int alen, Elem* pelem)
{
uchar* p = a;
int err;
return ber_decode(&p, &a[alen], pelem);
}
/*
* Like decode, but continue decoding after first element
* of array ends.
*/
static int
decode_seq(uchar* a, int alen, Elist** pelist)
{
uchar* p = a;
return seq_decode(&p, &a[alen], -1, 1, pelist);
}
/*
* Decode the whole array as a BER encoding of an ASN1 value,
* (i.e., the part after the tag and length).
* Assume the value is encoded as universal tag "kind".
* The constr arg is 1 if the value is constructed, 0 if primitive.
* If there's an error, the return string will contain the error.
* Depending on the error, the returned value may or may not
* be nil.
*/
static int
decode_value(uchar* a, int alen, int kind, int isconstr, Value* pval)
{
uchar* p = a;
return value_decode(&p, &a[alen], alen, kind, isconstr, pval);
err = ber_decode(&p, &a[alen], pelem);
if(err == ASN_OK && p != &a[alen])
err = ASN_EVALLEN;
return err;
}
/*
@ -2025,12 +1998,9 @@ decode_dsaprivkey(Bytes* a)
goto errret;
if(!is_seq(&e, &el) || elistlen(el) != 6)
goto errret;
version = -1;
version = -1;
if(!is_int(&el->hd, &version) || version != 0)
{
fprint(2, "version %d\n", version);
goto errret;
}
el = el->tl;
key->pub.p = mp = asn1mpint(&el->hd);
@ -2212,8 +2182,8 @@ verify_digestinfo(uchar *sig, int siglen, RSApub *pk, uchar *pdigest, int *psiga
el = nil;
memset(&e, 0, sizeof(e));
buflen = pkcs1decryptsignature(sig, siglen, pk, &buf);
if(buflen < 0 || decode(buf, buflen, &e) != ASN_OK || !is_seq(&e, &el) || elistlen(el) != 2 ||
!is_octetstring(&el->tl->hd, &digest)) {
if(buflen < 0 || decode(buf, buflen, &e) != ASN_OK
|| !is_seq(&e, &el) || elistlen(el) != 2 || !is_octetstring(&el->tl->hd, &digest)) {
err = "signature parse error";
goto end;
}