x509.h File Reference

Go to the source code of this file.

Functions
RZ_API bool	rz_x509_parse_algorithmidentifier (RX509AlgorithmIdentifier *ai, RASN1Object *object)
RZ_API void	rz_x509_free_algorithmidentifier (RX509AlgorithmIdentifier *ai)
RZ_API bool	rz_x509_parse_subjectpublickeyinfo (RX509SubjectPublicKeyInfo *spki, RASN1Object *object)
RZ_API void	rz_x509_free_subjectpublickeyinfo (RX509SubjectPublicKeyInfo *spki)
RZ_API bool	rz_x509_parse_name (RX509Name *name, RASN1Object *object)
RZ_API void	rz_x509_free_name (RX509Name *name)
RZ_API bool	rz_x509_parse_extension (RX509Extension *ext, RASN1Object *object)
RZ_API void	rz_x509_free_extension (RX509Extension *ex)
RZ_API bool	rz_x509_parse_extensions (RX509Extensions *ext, RASN1Object *object)
RZ_API void	rz_x509_free_extensions (RX509Extensions *ex)
RZ_API bool	rz_x509_parse_tbscertificate (RX509TBSCertificate *tbsc, RASN1Object *object)
RZ_API void	rz_x509_free_tbscertificate (RX509TBSCertificate *tbsc)
RZ_API RX509CRLEntry *	rz_x509_parse_crlentry (RASN1Object *object)
RZ_API void	rz_x509_name_dump (RX509Name *name, const char *pad, RzStrBuf *sb)

Function Documentation

rz_x509_free_algorithmidentifier()

RZ_API void rz_x509_free_algorithmidentifier

(

RX509AlgorithmIdentifier *

ai

)

Definition at line 306 of file x509.c.

                                                                           {
    if (ai) {
        // no need to free ai, since this functions is used internally
        rz_asn1_free_string(ai->algorithm);
        rz_asn1_free_string(ai->parameters);
    }
}

References rz_x509_algorithmidentifier_t::algorithm, rz_x509_algorithmidentifier_t::parameters, and rz_asn1_free_string().

Referenced by rz_pkcs7_free_digestalgorithmidentifier(), rz_pkcs7_free_signerinfo(), rz_pkcs7_free_spcmessagedigest(), rz_x509_free_certificate(), rz_x509_free_crl(), rz_x509_free_subjectpublickeyinfo(), and rz_x509_free_tbscertificate().

rz_x509_free_extension()

RZ_API void rz_x509_free_extension

(

RX509Extension *

ex

)

Definition at line 338 of file x509.c.

                                                       {
    if (ex) {
        rz_asn1_free_string(ex->extnID);
        rz_asn1_free_binary(ex->extnValue);
        // this is allocated dinamically so, i'll free
        free(ex);
    }
}

References ex, free(), rz_asn1_free_binary(), and rz_asn1_free_string().

Referenced by rz_x509_free_extensions(), and rz_x509_parse_extensions().

rz_x509_free_extensions()

RZ_API void rz_x509_free_extensions

(

RX509Extensions *

ex

)

Definition at line 347 of file x509.c.

                                                         {
    ut32 i;
    if (!ex) {
        return;
    }
    if (ex->extensions) {
        for (i = 0; i < ex->length; i++) {
            rz_x509_free_extension(ex->extensions[i]);
        }
        free(ex->extensions);
    }
    // no need to free ex, since this functions is used internally
}

References ex, free(), i, and rz_x509_free_extension().

Referenced by rz_x509_free_tbscertificate().

rz_x509_free_name()

RZ_API void rz_x509_free_name

(

RX509Name *

name

)

Definition at line 322 of file x509.c.

                                               {
    ut32 i;
    if (!name) {
        return;
    }
    if (name->names) {
        for (i = 0; i < name->length; i++) {
            rz_asn1_free_string(name->oids[i]);
            rz_asn1_free_string(name->names[i]);
        }
        RZ_FREE(name->names);
        RZ_FREE(name->oids);
    }
    // not freeing name since it's not allocated dinamically
}

References i, rz_asn1_free_string(), and RZ_FREE.

Referenced by rz_pkcs7_free_issuerandserialnumber(), rz_x509_free_crl(), and rz_x509_free_tbscertificate().

rz_x509_free_subjectpublickeyinfo()

RZ_API void rz_x509_free_subjectpublickeyinfo

(

RX509SubjectPublicKeyInfo *

spki

)

Definition at line 361 of file x509.c.

                                                                               {
    if (spki) {
        rz_x509_free_algorithmidentifier(&spki->algorithm);
        rz_asn1_free_binary(spki->subjectPublicKey);
        rz_asn1_free_binary(spki->subjectPublicKeyExponent);
        rz_asn1_free_binary(spki->subjectPublicKeyModule);
        // No need to free spki, since it's a static variable.
    }
}

References rz_x509_subjectpublickeyinfo_t::algorithm, rz_asn1_free_binary(), rz_x509_free_algorithmidentifier(), rz_x509_subjectpublickeyinfo_t::subjectPublicKey, rz_x509_subjectpublickeyinfo_t::subjectPublicKeyExponent, and rz_x509_subjectpublickeyinfo_t::subjectPublicKeyModule.

Referenced by rz_x509_free_tbscertificate().

rz_x509_free_tbscertificate()

RZ_API void rz_x509_free_tbscertificate

(

RX509TBSCertificate *

tbsc

)

Definition at line 371 of file x509.c.

                                                                   {
    if (tbsc) {
        //  version is ut32
        rz_asn1_free_string(tbsc->serialNumber);
        rz_x509_free_algorithmidentifier(&tbsc->signature);
        rz_x509_free_name(&tbsc->issuer);
        rz_x509_free_validity(&tbsc->validity);
        rz_x509_free_name(&tbsc->subject);
        rz_x509_free_subjectpublickeyinfo(&tbsc->subjectPublicKeyInfo);
        rz_asn1_free_binary(tbsc->subjectUniqueID);
        rz_asn1_free_binary(tbsc->issuerUniqueID);
        rz_x509_free_extensions(&tbsc->extensions);
        // no need to free tbsc, since this functions is used internally
    }
}

References rz_x509_tbscertificate_t::extensions, rz_x509_tbscertificate_t::issuer, rz_x509_tbscertificate_t::issuerUniqueID, rz_asn1_free_binary(), rz_asn1_free_string(), rz_x509_free_algorithmidentifier(), rz_x509_free_extensions(), rz_x509_free_name(), rz_x509_free_subjectpublickeyinfo(), rz_x509_free_validity(), rz_x509_tbscertificate_t::serialNumber, rz_x509_tbscertificate_t::signature, rz_x509_tbscertificate_t::subject, rz_x509_tbscertificate_t::subjectPublicKeyInfo, rz_x509_tbscertificate_t::subjectUniqueID, and rz_x509_tbscertificate_t::validity.

Referenced by rz_x509_free_certificate().

rz_x509_name_dump()

RZ_API void rz_x509_name_dump	(	RX509Name *	name,
		const char *	pad,
		RzStrBuf *	sb
	)

Definition at line 434 of file x509.c.

                                                                              {
    ut32 i;
    if (!name) {
        return;
    }
    if (!pad) {
        pad = "";
    }
    for (i = 0; i < name->length; i++) {
        if (!name->oids[i] || !name->names[i]) {
            continue;
        }
        rz_strbuf_appendf(sb, "%s%s: %s\n", pad, name->oids[i]->string, name->names[i]->string);
    }
}

References i, pad(), rz_strbuf_appendf(), and sb.

Referenced by rz_x509_crl_to_string(), rz_x509_signedinfo_dump(), and rz_x509_tbscertificate_dump().

rz_x509_parse_algorithmidentifier()

RZ_API bool rz_x509_parse_algorithmidentifier	(	RX509AlgorithmIdentifier *	ai,
		RASN1Object *	object
	)

Definition at line 44 of file x509.c.

                                                                                                 {
    rz_return_val_if_fail(ai && object, false);
 
    if (object->list.length < 1 || !object->list.objects || !is_oid_object(object)) {
        return false;
    }
 
    ai->algorithm = rz_asn1_stringify_oid(object->list.objects[0]->sector, object->list.objects[0]->length);
    ai->parameters = NULL; // TODO
    // ai->parameters = asn1_stringify_sector (object->list.objects[1]);
    return true;
}

References rz_x509_algorithmidentifier_t::algorithm, is_oid_object(), rz_asn1_list_t::length, rz_asn1_object_t::length, rz_asn1_object_t::list, NULL, rz_asn1_list_t::objects, rz_x509_algorithmidentifier_t::parameters, rz_asn1_stringify_oid(), rz_return_val_if_fail, and rz_asn1_object_t::sector.

Referenced by rz_pkcs7_parse_digestalgorithmidentifier(), rz_pkcs7_parse_signerinfo(), rz_pkcs7_parse_spcmessagedigest(), rz_x509_parse_certificate(), rz_x509_parse_crl(), rz_x509_parse_subjectpublickeyinfo(), and rz_x509_parse_tbscertificate().

rz_x509_parse_crlentry()

RZ_API RX509CRLEntry* rz_x509_parse_crlentry

(

RASN1Object *

object

)

Definition at line 261 of file x509.c.

                                                                  {
    RX509CRLEntry *entry;
    if (!object || object->list.length != 2) {
        return NULL;
    }
    entry = (RX509CRLEntry *)malloc(sizeof(RX509CRLEntry));
    if (!entry) {
        return NULL;
    }
    entry->userCertificate = rz_asn1_create_binary(object->list.objects[0]->sector, object->list.objects[0]->length);
    entry->revocationDate = rz_asn1_stringify_utctime(object->list.objects[1]->sector, object->list.objects[1]->length);
    return entry;
}

References rz_asn1_list_t::length, rz_asn1_object_t::length, rz_asn1_object_t::list, malloc(), NULL, rz_asn1_list_t::objects, rz_asn1_create_binary(), rz_asn1_stringify_utctime(), and rz_asn1_object_t::sector.

Referenced by rz_x509_parse_crl().

rz_x509_parse_extension()

RZ_API bool rz_x509_parse_extension	(	RX509Extension *	ext,
		RASN1Object *	object
	)

Definition at line 122 of file x509.c.

                                                                              {
    RASN1Object *o;
    if (!ext || !object || object->list.length < 2) {
        return false;
    }
    o = object->list.objects[0];
    if (o && o->tag == TAG_OID) {
        ext->extnID = rz_asn1_stringify_oid(o->sector, o->length);
        o = object->list.objects[1];
        if (o->tag == TAG_BOOLEAN && object->list.length > 2) {
            // This field is optional (so len must be 3)
            ext->critical = o->sector[0] != 0;
            o = object->list.objects[2];
        }
        if (o->tag == TAG_OCTETSTRING) {
            ext->extnValue = rz_asn1_create_binary(o->sector, o->length);
        }
    }
    return true;
}

References ext, rz_asn1_list_t::length, rz_asn1_object_t::length, rz_asn1_object_t::list, rz_asn1_list_t::objects, rz_asn1_create_binary(), rz_asn1_stringify_oid(), rz_asn1_object_t::sector, rz_asn1_object_t::tag, TAG_BOOLEAN, TAG_OCTETSTRING, and TAG_OID.

Referenced by rz_x509_parse_extensions().

rz_x509_parse_extensions()

RZ_API bool rz_x509_parse_extensions	(	RX509Extensions *	ext,
		RASN1Object *	object
	)

Definition at line 143 of file x509.c.

                                                                                {
    ut32 i;
    if (!ext || !object || object->list.length != 1 || !object->list.objects[0]->length) {
        return false;
    }
    object = object->list.objects[0];
    ext->extensions = (RX509Extension **)calloc(object->list.length, sizeof(RX509Extension *));
    if (!ext->extensions) {
        return false;
    }
    ext->length = object->list.length;
    for (i = 0; i < object->list.length; i++) {
        ext->extensions[i] = RZ_NEW0(RX509Extension);
        if (!rz_x509_parse_extension(ext->extensions[i], object->list.objects[i])) {
            rz_x509_free_extension(ext->extensions[i]);
            ext->extensions[i] = NULL;
        }
    }
    return true;
}

References calloc(), ext, i, rz_asn1_list_t::length, rz_asn1_object_t::length, rz_asn1_object_t::list, NULL, rz_asn1_list_t::objects, RZ_NEW0, rz_x509_free_extension(), and rz_x509_parse_extension().

Referenced by rz_x509_parse_tbscertificate().

rz_x509_parse_name()

RZ_API bool rz_x509_parse_name	(	RX509Name *	name,
		RASN1Object *	object
	)

Definition at line 79 of file x509.c.

                                                                     {
    ut32 i;
    if (!name || !object || !object->list.length) {
        return false;
    }
    if (object->klass == CLASS_UNIVERSAL && object->tag == TAG_SEQUENCE) {
        name->length = object->list.length;
        name->names = (RASN1String **)calloc(name->length, sizeof(RASN1String *));
        if (!name->names) {
            name->length = 0;
            return false;
        }
        name->oids = (RASN1String **)calloc(name->length, sizeof(RASN1String *));
        if (!name->oids) {
            name->length = 0;
            RZ_FREE(name->names);
            return false;
        }
        for (i = 0; i < object->list.length; i++) {
            RASN1Object *o = object->list.objects[i];
            if (o && o->klass == CLASS_UNIVERSAL &&
                o->tag == TAG_SET &&
                o->form == FORM_CONSTRUCTED &&
                o->list.length == 1) {
                o = o->list.objects[0];
                if (o && o->list.length > 1 &&
                    o->klass == CLASS_UNIVERSAL &&
                    o->tag == TAG_SEQUENCE) {
                    if (o->list.objects[0]->klass == CLASS_UNIVERSAL &&
                        o->list.objects[0]->tag == TAG_OID) {
                        name->oids[i] = rz_asn1_stringify_oid(o->list.objects[0]->sector, o->list.objects[0]->length);
                    }
                    RASN1Object *obj1 = o->list.objects[1];
                    if (obj1 && obj1->klass == CLASS_UNIVERSAL) {
                        name->names[i] = rz_asn1_stringify_string(obj1->sector, obj1->length);
                    }
                }
            }
        }
    }
    return true;
}

References calloc(), CLASS_UNIVERSAL, rz_asn1_object_t::form, FORM_CONSTRUCTED, i, rz_asn1_object_t::klass, rz_asn1_list_t::length, rz_asn1_object_t::length, rz_asn1_object_t::list, rz_asn1_list_t::objects, rz_asn1_stringify_oid(), rz_asn1_stringify_string(), RZ_FREE, rz_asn1_object_t::sector, rz_asn1_object_t::tag, TAG_OID, TAG_SEQUENCE, and TAG_SET.

Referenced by rz_pkcs7_parse_issuerandserialnumber(), rz_x509_parse_crl(), and rz_x509_parse_tbscertificate().

rz_x509_parse_subjectpublickeyinfo()

RZ_API bool rz_x509_parse_subjectpublickeyinfo	(	RX509SubjectPublicKeyInfo *	spki,
		RASN1Object *	object
	)

Definition at line 57 of file x509.c.

                                                                                                     {
    RASN1Object *o;
    if (!spki || !object || object->list.length != 2) {
        return false;
    }
    rz_x509_parse_algorithmidentifier(&spki->algorithm, object->list.objects[0]);
    if (object->list.objects[1]) {
        o = object->list.objects[1];
        spki->subjectPublicKey = rz_asn1_create_binary(o->sector, o->length);
        if (o->list.length == 1 && o->list.objects[0] && o->list.objects[0]->list.length == 2) {
            o = o->list.objects[0];
            if (o->list.objects[0]) {
                spki->subjectPublicKeyExponent = rz_asn1_create_binary(o->list.objects[0]->sector, o->list.objects[0]->length);
            }
            if (o->list.objects[1]) {
                spki->subjectPublicKeyModule = rz_asn1_create_binary(o->list.objects[1]->sector, o->list.objects[1]->length);
            }
        }
    }
    return true;
}

References rz_x509_subjectpublickeyinfo_t::algorithm, rz_asn1_list_t::length, rz_asn1_object_t::length, rz_asn1_object_t::list, rz_asn1_list_t::objects, rz_asn1_create_binary(), rz_x509_parse_algorithmidentifier(), rz_asn1_object_t::sector, rz_x509_subjectpublickeyinfo_t::subjectPublicKey, rz_x509_subjectpublickeyinfo_t::subjectPublicKeyExponent, and rz_x509_subjectpublickeyinfo_t::subjectPublicKeyModule.

Referenced by rz_x509_parse_tbscertificate().

rz_x509_parse_tbscertificate()

RZ_API bool rz_x509_parse_tbscertificate	(	RX509TBSCertificate *	tbsc,
		RASN1Object *	object
	)

Definition at line 164 of file x509.c.

                                                                                         {
    RASN1Object **elems;
    ut32 i;
    ut32 shift = 0;
    if (!tbsc || !object || object->list.length < 6) {
        return false;
    }
    elems = object->list.objects;
    // Following RFC
    if (elems[0]->list.length == 1 &&
        elems[0]->klass == CLASS_CONTEXT &&
        elems[0]->form == FORM_CONSTRUCTED &&
        elems[0]->list.objects[0]->tag == TAG_INTEGER &&
        elems[0]->list.objects[0]->length == 1) {
        // Integer inside a CLASS_CONTEXT
        tbsc->version = (ut32)elems[0]->list.objects[0]->sector[0];
        shift = 1;
    } else {
        tbsc->version = 0;
    }
    if (shift < object->list.length && elems[shift]->klass == CLASS_UNIVERSAL && elems[shift]->tag == TAG_INTEGER) {
        tbsc->serialNumber = rz_asn1_stringify_integer(elems[shift]->sector, elems[shift]->length);
    }
    rz_x509_parse_algorithmidentifier(&tbsc->signature, elems[shift + 1]);
    rz_x509_parse_name(&tbsc->issuer, elems[shift + 2]);
    rz_x509_parse_validity(&tbsc->validity, elems[shift + 3]);
    rz_x509_parse_name(&tbsc->subject, elems[shift + 4]);
    rz_x509_parse_subjectpublickeyinfo(&tbsc->subjectPublicKeyInfo, elems[shift + 5]);
    if (tbsc->version > 0) {
        for (i = shift + 6; i < object->list.length; i++) {
            if (!elems[i] || elems[i]->klass != CLASS_CONTEXT) {
                continue;
            }
            if (elems[i]->tag == 1) {
                tbsc->issuerUniqueID = rz_asn1_create_binary(object->list.objects[i]->sector, object->list.objects[i]->length);
            }
            if (!elems[i]) {
                continue;
            }
            if (elems[i]->tag == 2) {
                tbsc->subjectUniqueID = rz_asn1_create_binary(object->list.objects[i]->sector, object->list.objects[i]->length);
            }
            if (!elems[i]) {
                continue;
            }
            if (tbsc->version == 2 && elems[i]->tag == 3 && elems[i]->form == FORM_CONSTRUCTED) {
                rz_x509_parse_extensions(&tbsc->extensions, elems[i]);
            }
        }
    }
    return true;
}

References CLASS_CONTEXT, CLASS_UNIVERSAL, rz_x509_tbscertificate_t::extensions, rz_asn1_object_t::form, FORM_CONSTRUCTED, i, rz_x509_tbscertificate_t::issuer, rz_x509_tbscertificate_t::issuerUniqueID, rz_asn1_object_t::klass, rz_asn1_list_t::length, rz_asn1_object_t::length, length, rz_asn1_object_t::list, list(), rz_asn1_list_t::objects, rz_asn1_create_binary(), rz_asn1_stringify_integer(), rz_x509_parse_algorithmidentifier(), rz_x509_parse_extensions(), rz_x509_parse_name(), rz_x509_parse_subjectpublickeyinfo(), rz_x509_parse_validity(), rz_asn1_object_t::sector, rz_x509_tbscertificate_t::serialNumber, shift(), rz_x509_tbscertificate_t::signature, rz_x509_tbscertificate_t::subject, rz_x509_tbscertificate_t::subjectPublicKeyInfo, rz_x509_tbscertificate_t::subjectUniqueID, rz_asn1_object_t::tag, test-lz4-versions::tag, TAG_INTEGER, rz_x509_tbscertificate_t::validity, and rz_x509_tbscertificate_t::version.

Referenced by rz_x509_parse_certificate().