OpenSSL::OCSP::BasicResponse

An OpenSSL::OCSP::BasicResponse contains the status of a certificate check which is created from an OpenSSL::OCSP::Request. A BasicResponse is more detailed than a Response.

Public Class Methods

OpenSSL::OCSP::BasicResponse.new(der_string = nil) → basic_response click to toggle source

Creates a new BasicResponse. If der_string is given, decodes der_string as DER.

 
               static VALUE
ossl_ocspbres_initialize(int argc, VALUE *argv, VALUE self)
{
    VALUE arg;
    OCSP_BASICRESP *res, *res_new;
    const unsigned char *p;

    rb_scan_args(argc, argv, "01", &arg);
    if (!NIL_P(arg)) {
        GetOCSPBasicRes(self, res);
        arg = ossl_to_der_if_possible(arg);
        StringValue(arg);
        p = (unsigned char *)RSTRING_PTR(arg);
        res_new = d2i_OCSP_BASICRESP(NULL, &p, RSTRING_LEN(arg));
        if (!res_new)
            ossl_raise(eOCSPError, "d2i_OCSP_BASICRESP");
        SetOCSPBasicRes(self, res_new);
        OCSP_BASICRESP_free(res);
    }

    return self;
}

Public Instance Methods

add_nonce(nonce = nil) click to toggle source

Adds nonce to this response. If no nonce was provided a random nonce will be added.

 
               static VALUE
ossl_ocspbres_add_nonce(int argc, VALUE *argv, VALUE self)
{
    OCSP_BASICRESP *bs;
    VALUE val;
    int ret;

    rb_scan_args(argc, argv, "01", &val);
    if(NIL_P(val)) {
        GetOCSPBasicRes(self, bs);
        ret = OCSP_basic_add1_nonce(bs, NULL, -1);
    }
    else{
        StringValue(val);
        GetOCSPBasicRes(self, bs);
        ret = OCSP_basic_add1_nonce(bs, (unsigned char *)RSTRING_PTR(val), RSTRING_LENINT(val));
    }
    if(!ret) ossl_raise(eOCSPError, NULL);

    return self;
}

add_status(certificate_id, status, reason, revocation_time, this_update, next_update, extensions) → basic_response click to toggle source

Adds a certificate status for certificate_id. status is the status, and must be one of these:

OpenSSL::OCSP::V_CERTSTATUS_GOOD
OpenSSL::OCSP::V_CERTSTATUS_REVOKED
OpenSSL::OCSP::V_CERTSTATUS_UNKNOWN

reason and revocation_time can be given only when status is OpenSSL::OCSP::V_CERTSTATUS_REVOKED. reason describes the reason for the revocation, and must be one of OpenSSL::OCSP::REVOKED_STATUS_* constants. revocation_time is the time when the certificate is revoked.

this_update and next_update indicate the time at which ths status is verified to be correct and the time at or before which newer information will be available, respectively. next_update is optional.

extensions is an Array of OpenSSL::X509::Extension to be included in the SingleResponse. This is also optional.

Note that the times, revocation_time, this_update and next_update can be specified in either of Integer or Time object. If they are Integer, it is treated as the relative seconds from the current time.

 
               static VALUE
ossl_ocspbres_add_status(VALUE self, VALUE cid, VALUE status,
                         VALUE reason, VALUE revtime,
                         VALUE thisupd, VALUE nextupd, VALUE ext)
{
    OCSP_BASICRESP *bs;
    OCSP_SINGLERESP *single;
    OCSP_CERTID *id;
    ASN1_TIME *ths = NULL, *nxt = NULL, *rev = NULL;
    int st, rsn = 0, error = 0, rstatus = 0;
    long i;
    VALUE tmp;

    GetOCSPBasicRes(self, bs);
    GetOCSPCertId(cid, id);
    st = NUM2INT(status);
    if (!NIL_P(ext)) { /* All ext's members must be X509::Extension */
        ext = rb_check_array_type(ext);
        for (i = 0; i < RARRAY_LEN(ext); i++)
            OSSL_Check_Kind(RARRAY_AREF(ext, i), cX509Ext);
    }

    if (st == V_OCSP_CERTSTATUS_REVOKED) {
        rsn = NUM2INT(reason);
        tmp = rb_protect(add_status_convert_time, revtime, &rstatus);
        if (rstatus) goto err;
        rev = (ASN1_TIME *)tmp;
    }

    tmp = rb_protect(add_status_convert_time, thisupd, &rstatus);
    if (rstatus) goto err;
    ths = (ASN1_TIME *)tmp;

    if (!NIL_P(nextupd)) {
        tmp = rb_protect(add_status_convert_time, nextupd, &rstatus);
        if (rstatus) goto err;
        nxt = (ASN1_TIME *)tmp;
    }

    if(!(single = OCSP_basic_add1_status(bs, id, st, rsn, rev, ths, nxt))){
        error = 1;
        goto err;
    }

    if(!NIL_P(ext)){
        X509_EXTENSION *x509ext;

        for(i = 0; i < RARRAY_LEN(ext); i++){
            x509ext = GetX509ExtPtr(RARRAY_AREF(ext, i));
            if(!OCSP_SINGLERESP_add_ext(single, x509ext, -1)){
                error = 1;
                goto err;
            }
        }
    }

 err:
    ASN1_TIME_free(ths);
    ASN1_TIME_free(nxt);
    ASN1_TIME_free(rev);
    if(error) ossl_raise(eOCSPError, NULL);
    if(rstatus) rb_jump_tag(rstatus);

    return self;
}

copy_nonce(request) → Integer click to toggle source

Copies the nonce from request into this response. Returns 1 on success and 0 on failure.

 
               static VALUE
ossl_ocspbres_copy_nonce(VALUE self, VALUE request)
{
    OCSP_BASICRESP *bs;
    OCSP_REQUEST *req;
    int ret;

    GetOCSPBasicRes(self, bs);
    GetOCSPReq(request, req);
    ret = OCSP_copy_nonce(bs, req);

    return INT2NUM(ret);
}

find_response(certificate_id) → SingleResponse | nil click to toggle source

Returns a SingleResponse whose CertId matches with certificate_id, or nil if this BasicResponse does not contain it.

 
               static VALUE
ossl_ocspbres_find_response(VALUE self, VALUE target)
{
    OCSP_BASICRESP *bs;
    OCSP_SINGLERESP *sres, *sres_new;
    OCSP_CERTID *id;
    int n;

    GetOCSPCertId(target, id);
    GetOCSPBasicRes(self, bs);

    if ((n = OCSP_resp_find(bs, id, -1)) == -1)
        return Qnil;

    sres = OCSP_resp_get0(bs, n);
    sres_new = ASN1_item_dup(ASN1_ITEM_rptr(OCSP_SINGLERESP), sres);
    if (!sres_new)
        ossl_raise(eOCSPError, "ASN1_item_dup");

    return ossl_ocspsres_new(sres_new);
}

initialize_copy(p1) click to toggle source

 
               static VALUE
ossl_ocspbres_initialize_copy(VALUE self, VALUE other)
{
    OCSP_BASICRESP *bs, *bs_old, *bs_new;

    rb_check_frozen(self);
    GetOCSPBasicRes(self, bs_old);
    GetOCSPBasicRes(other, bs);

    bs_new = ASN1_item_dup(ASN1_ITEM_rptr(OCSP_BASICRESP), bs);
    if (!bs_new)
        ossl_raise(eOCSPError, "ASN1_item_dup");

    SetOCSPBasicRes(self, bs_new);
    OCSP_BASICRESP_free(bs_old);

    return self;
}

responses → Array of SingleResponse click to toggle source

Returns an Array of SingleResponse for this BasicResponse.

 
               static VALUE
ossl_ocspbres_get_responses(VALUE self)
{
    OCSP_BASICRESP *bs;
    VALUE ret;
    int count, i;

    GetOCSPBasicRes(self, bs);
    count = OCSP_resp_count(bs);
    ret = rb_ary_new2(count);

    for (i = 0; i < count; i++) {
        OCSP_SINGLERESP *sres, *sres_new;

        sres = OCSP_resp_get0(bs, i);
        sres_new = ASN1_item_dup(ASN1_ITEM_rptr(OCSP_SINGLERESP), sres);
        if (!sres_new)
            ossl_raise(eOCSPError, "ASN1_item_dup");

        rb_ary_push(ret, ossl_ocspsres_new(sres_new));
    }

    return ret;
}

sign(cert, key, certs = nil, flags = 0, digest = nil) → self click to toggle source

Signs this OCSP response using the cert, key and optional digest. This behaves in the similar way as OpenSSL::OCSP::Request#sign.

flags can include:

OpenSSL::OCSP::NOCERTS: don't include certificates
OpenSSL::OCSP::NOTIME: don't set producedAt
OpenSSL::OCSP::RESPID_KEY: use signer's public key hash as responderID

 
               static VALUE
ossl_ocspbres_sign(int argc, VALUE *argv, VALUE self)
{
    VALUE signer_cert, signer_key, certs, flags, digest;
    OCSP_BASICRESP *bs;
    X509 *signer;
    EVP_PKEY *key;
    STACK_OF(X509) *x509s = NULL;
    unsigned long flg = 0;
    const EVP_MD *md;
    int ret;

    rb_scan_args(argc, argv, "23", &signer_cert, &signer_key, &certs, &flags, &digest);
    GetOCSPBasicRes(self, bs);
    signer = GetX509CertPtr(signer_cert);
    key = GetPrivPKeyPtr(signer_key);
    if (!NIL_P(flags))
        flg = NUM2INT(flags);
    if (NIL_P(digest))
        md = EVP_sha1();
    else
        md = ossl_evp_get_digestbyname(digest);
    if (NIL_P(certs))
        flg |= OCSP_NOCERTS;
    else
        x509s = ossl_x509_ary2sk(certs);

    ret = OCSP_basic_sign(bs, signer, key, md, x509s, flg);
    sk_X509_pop_free(x509s, X509_free);
    if (!ret) ossl_raise(eOCSPError, NULL);

    return self;
}

status → statuses click to toggle source

Returns an Array of statuses for this response. Each status contains a CertificateId, the status (0 for good, 1 for revoked, 2 for unknown), the reason for the status, the revocation time, the time of this update, the time for the next update and a list of OpenSSL::X509::Extension.

This should be superseded by #responses and find_response that return SingleResponse.

 
               static VALUE
ossl_ocspbres_get_status(VALUE self)
{
    OCSP_BASICRESP *bs;
    OCSP_SINGLERESP *single;
    OCSP_CERTID *cid;
    ASN1_TIME *revtime, *thisupd, *nextupd;
    int status, reason;
    X509_EXTENSION *x509ext;
    VALUE ret, ary, ext;
    int count, ext_count, i, j;

    GetOCSPBasicRes(self, bs);
    ret = rb_ary_new();
    count = OCSP_resp_count(bs);
    for(i = 0; i < count; i++){
        single = OCSP_resp_get0(bs, i);
        if(!single) continue;

        revtime = thisupd = nextupd = NULL;
        status = OCSP_single_get0_status(single, &reason, &revtime,
                                         &thisupd, &nextupd);
        if(status < 0) continue;
        if(!(cid = OCSP_CERTID_dup((OCSP_CERTID *)OCSP_SINGLERESP_get0_id(single)))) /* FIXME */
            ossl_raise(eOCSPError, NULL);
        ary = rb_ary_new();
        rb_ary_push(ary, ossl_ocspcertid_new(cid));
        rb_ary_push(ary, INT2NUM(status));
        rb_ary_push(ary, INT2NUM(reason));
        rb_ary_push(ary, revtime ? asn1time_to_time(revtime) : Qnil);
        rb_ary_push(ary, thisupd ? asn1time_to_time(thisupd) : Qnil);
        rb_ary_push(ary, nextupd ? asn1time_to_time(nextupd) : Qnil);
        ext = rb_ary_new();
        ext_count = OCSP_SINGLERESP_get_ext_count(single);
        for(j = 0; j < ext_count; j++){
            x509ext = OCSP_SINGLERESP_get_ext(single, j);
            rb_ary_push(ext, ossl_x509ext_new(x509ext));
        }
        rb_ary_push(ary, ext);
        rb_ary_push(ret, ary);
    }

    return ret;
}

to_der → String click to toggle source

Encodes this basic response into a DER-encoded string.

 
               static VALUE
ossl_ocspbres_to_der(VALUE self)
{
    OCSP_BASICRESP *res;
    VALUE str;
    long len;
    unsigned char *p;

    GetOCSPBasicRes(self, res);
    if ((len = i2d_OCSP_BASICRESP(res, NULL)) <= 0)
        ossl_raise(eOCSPError, NULL);
    str = rb_str_new(0, len);
    p = (unsigned char *)RSTRING_PTR(str);
    if (i2d_OCSP_BASICRESP(res, &p) <= 0)
        ossl_raise(eOCSPError, NULL);
    ossl_str_adjust(str, p);

    return str;
}

verify(certificates, store, flags = 0) → true or false click to toggle source

Verifies the signature of the response using the given certificates and store. This works in the similar way as OpenSSL::OCSP::Request#verify.

 
               static VALUE
ossl_ocspbres_verify(int argc, VALUE *argv, VALUE self)
{
    VALUE certs, store, flags;
    OCSP_BASICRESP *bs;
    STACK_OF(X509) *x509s;
    X509_STORE *x509st;
    int flg, result;

    rb_scan_args(argc, argv, "21", &certs, &store, &flags);
    GetOCSPBasicRes(self, bs);
    x509st = GetX509StorePtr(store);
    flg = NIL_P(flags) ? 0 : NUM2INT(flags);
    x509s = ossl_x509_ary2sk(certs);
#if (OPENSSL_VERSION_NUMBER < 0x1000202fL) || defined(LIBRESSL_VERSION_NUMBER)
    /*
     * OpenSSL had a bug that it doesn't use the certificates in x509s for
     * verifying the chain. This can be a problem when the response is signed by
     * a certificate issued by an intermediate CA.
     *
     *       root_ca
     *         |
     *   intermediate_ca
     *         |-------------|
     *     end_entity    ocsp_signer
     *
     * When the certificate hierarchy is like this, and the response contains
     * only ocsp_signer certificate, the following code wrongly fails.
     *
     *   store = OpenSSL::X509::Store.new; store.add_cert(root_ca)
     *   basic_response.verify([intermediate_ca], store)
     *
     * So add the certificates in x509s to the embedded certificates list first.
     *
     * This is fixed in OpenSSL 0.9.8zg, 1.0.0s, 1.0.1n, 1.0.2b. But it still
     * exists in LibreSSL 2.1.10, 2.2.9, 2.3.6, 2.4.1.
     */
    if (!(flg & (OCSP_NOCHAIN | OCSP_NOVERIFY)) &&
        sk_X509_num(x509s) && sk_X509_num(bs->certs)) {
        int i;

        bs = ASN1_item_dup(ASN1_ITEM_rptr(OCSP_BASICRESP), bs);
        if (!bs) {
            sk_X509_pop_free(x509s, X509_free);
            ossl_raise(eOCSPError, "ASN1_item_dup");
        }

        for (i = 0; i < sk_X509_num(x509s); i++) {
            if (!OCSP_basic_add1_cert(bs, sk_X509_value(x509s, i))) {
                sk_X509_pop_free(x509s, X509_free);
                OCSP_BASICRESP_free(bs);
                ossl_raise(eOCSPError, "OCSP_basic_add1_cert");
            }
        }
        result = OCSP_basic_verify(bs, x509s, x509st, flg);
        OCSP_BASICRESP_free(bs);
    }
    else {
        result = OCSP_basic_verify(bs, x509s, x509st, flg);
    }
#else
    result = OCSP_basic_verify(bs, x509s, x509st, flg);
#endif
    sk_X509_pop_free(x509s, X509_free);
    if (result <= 0)
        ossl_clear_error();

    return result > 0 ? Qtrue : Qfalse;
}

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