nhyatt/osslsigncode
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is_indirect_data_signature()

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This commit is contained in:
olszomal 2020-04-01 13:25:58 +02:00
parent 3ae025a133
commit a79c0c6426
1 changed files with 16 additions and 13 deletions

29
osslsigncode.c

@ -633,6 +633,19 @@ static void tohex(const unsigned char *v, char *b, int len)
sprintf(b+i*2, "%02X", v[i]);
}
static int is_indirect_data_signature(PKCS7 *p7)
{
ASN1_OBJECT *indir_objid;
int retval;
indir_objid = OBJ_txt2obj(SPC_INDIRECT_DATA_OBJID, 1);
retval = p7 && PKCS7_type_is_signed(p7) &&
!OBJ_cmp(p7->d.sign->contents->type, indir_objid) &&
p7->d.sign->contents->d.other->type == V_ASN1_SEQUENCE;
ASN1_OBJECT_free(indir_objid);
return retval;
}
#ifdef ENABLE_CURL
static int blob_has_nl = 0;
@ -2409,8 +2422,7 @@ static int msi_verify_pkcs7(PKCS7 *p7, GsfInfile *infile, unsigned char *exdata,
#endif
char hexbuf[EVP_MAX_MD_SIZE*2+1];
ASN1_OBJECT *indir_objid = OBJ_txt2obj(SPC_INDIRECT_DATA_OBJID, 1);
if (p7 && PKCS7_type_is_signed(p7) && !OBJ_cmp(p7->d.sign->contents->type, indir_objid) && p7->d.sign->contents->d.other->type == V_ASN1_SEQUENCE) {
if (is_indirect_data_signature(p7)) {
ASN1_STRING *astr = p7->d.sign->contents->d.other->value.sequence;
const unsigned char *p = astr->data;
SpcIndirectDataContent *idc = d2i_SpcIndirectDataContent(NULL, &p, astr->length);
@ -2421,7 +2433,6 @@ static int msi_verify_pkcs7(PKCS7 *p7, GsfInfile *infile, unsigned char *exdata,
}
SpcIndirectDataContent_free(idc);
}
ASN1_OBJECT_free(indir_objid);
}
if (mdtype == -1) {
printf("Failed to extract current message digest\n\n");
@ -2942,10 +2953,7 @@ static int pe_verify_pkcs7(PKCS7 *p7, char *indata, FILE_HEADER *header,
size_t phlen = 0;
BIO *bio = NULL;
ASN1_OBJECT *indir_objid = OBJ_txt2obj(SPC_INDIRECT_DATA_OBJID, 1);
if (PKCS7_type_is_signed(p7) &&
!OBJ_cmp(p7->d.sign->contents->type, indir_objid) &&
p7->d.sign->contents->d.other->type == V_ASN1_SEQUENCE) {
if (is_indirect_data_signature(p7)) {
ASN1_STRING *astr = p7->d.sign->contents->d.other->value.sequence;
const unsigned char *p = astr->data;
SpcIndirectDataContent *idc = d2i_SpcIndirectDataContent(NULL, &p, astr->length);
@ -2958,7 +2966,6 @@ static int pe_verify_pkcs7(PKCS7 *p7, char *indata, FILE_HEADER *header,
SpcIndirectDataContent_free(idc);
}
}
ASN1_OBJECT_free(indir_objid);
if (mdtype == -1) {
printf("Failed to extract current message digest\n\n");
return -1;
@ -3339,10 +3346,7 @@ static int cab_verify_pkcs7(PKCS7 *p7, char *indata, FILE_HEADER *header,
size_t phlen = 0;
BIO *bio = NULL;
ASN1_OBJECT *indir_objid = OBJ_txt2obj(SPC_INDIRECT_DATA_OBJID, 1);
if (PKCS7_type_is_signed(p7) &&
!OBJ_cmp(p7->d.sign->contents->type, indir_objid) &&
p7->d.sign->contents->d.other->type == V_ASN1_SEQUENCE) {
if (is_indirect_data_signature(p7)) {
ASN1_STRING *astr = p7->d.sign->contents->d.other->value.sequence;
const unsigned char *p = astr->data;
SpcIndirectDataContent *idc = d2i_SpcIndirectDataContent(NULL, &p, astr->length);
@ -3355,7 +3359,6 @@ static int cab_verify_pkcs7(PKCS7 *p7, char *indata, FILE_HEADER *header,
SpcIndirectDataContent_free(idc);
}
}
ASN1_OBJECT_free(indir_objid);
if (mdtype == -1) {
printf("Failed to extract current message digest\n\n");
return -1; /* FAILED */