diff options
author | Richard Levitte <levitte@openssl.org> | 2003-04-03 22:33:59 +0000 |
---|---|---|
committer | Richard Levitte <levitte@openssl.org> | 2003-04-03 22:33:59 +0000 |
commit | 16b1b03543fc6362f9e48f1bd9d4b153ea58c553 (patch) | |
tree | a7d45496f96476ba095e385f7a3502dde1f9b6b7 | |
parent | e6526fbf4dc894d71ae3517a1ba484475b79b402 (diff) |
Implement self-signing in 'openssl ca'. This makes it easier to have
the CA certificate part of the CA database, and combined with
'unique_subject=no', it should make operations like CA certificate
roll-over easier.
-rw-r--r-- | CHANGES | 7 | ||||
-rw-r--r-- | apps/CA.pl.in | 11 | ||||
-rw-r--r-- | apps/CA.sh | 13 | ||||
-rw-r--r-- | apps/ca.c | 90 | ||||
-rw-r--r-- | doc/HOWTO/certificates.txt | 11 |
5 files changed, 88 insertions, 44 deletions
@@ -4,6 +4,13 @@ Changes between 0.9.7a and 0.9.8 [xx XXX xxxx] + *) Make it possible to create self-signed certificates with 'openssl ca' + in such a way that the self-signed certificate becomes part of the + CA database and uses the same mechanisms for serial number generation + as all other certificate signing. The new flag '-selfsign' enables + this functionality. Adapt CA.sh and CA.pl.in. + [Richard Levitte] + *) Add functionality to check the public key of a certificate request against a given private. This is useful to check that a certificate request can be signed by that key (self-signing). diff --git a/apps/CA.pl.in b/apps/CA.pl.in index 8b2ce7ea42..2242f7e03b 100644 --- a/apps/CA.pl.in +++ b/apps/CA.pl.in @@ -37,7 +37,8 @@ # demoCA ... where everything is stored $SSLEAY_CONFIG=$ENV{"SSLEAY_CONFIG"}; -$DAYS="-days 365"; +$DAYS="-days 365"; # 1 year +$CADAYS="-days 1095"; # 3 years $REQ="openssl req $SSLEAY_CONFIG"; $CA="openssl ca $SSLEAY_CONFIG"; $VERIFY="openssl verify"; @@ -46,6 +47,7 @@ $PKCS12="openssl pkcs12"; $CATOP="./demoCA"; $CAKEY="cakey.pem"; +$CAREQ="careq.pem"; $CACERT="cacert.pem"; $DIRMODE = 0777; @@ -101,8 +103,11 @@ foreach (@ARGV) { $RET=$?; } else { print "Making CA certificate ...\n"; - system ("$REQ -new -x509 -keyout " . - "${CATOP}/private/$CAKEY -out ${CATOP}/$CACERT $DAYS"); + system ("$REQ -new -keyout " . + "${CATOP}/private/$CAKEY -out ${CATOP}/$CAREQ"); + system ("$CA -out ${CATOP}/$CACERT $CADAYS -batch " . + "-keyfile ${CATOP}/private/$CAKEY -selfsign " . + "-infiles ${CATOP}/$CAREQ "); $RET=$?; } } diff --git a/apps/CA.sh b/apps/CA.sh index d9f3069fb2..e63a2267ee 100644 --- a/apps/CA.sh +++ b/apps/CA.sh @@ -30,7 +30,8 @@ # default openssl.cnf file has setup as per the following # demoCA ... where everything is stored -DAYS="-days 365" +DAYS="-days 365" # 1 year +CADAYS="-days 1095" # 3 years REQ="openssl req $SSLEAY_CONFIG" CA="openssl ca $SSLEAY_CONFIG" VERIFY="openssl verify" @@ -38,6 +39,7 @@ X509="openssl x509" CATOP=./demoCA CAKEY=./cakey.pem +CAREQ=./careq.pem CACERT=./cacert.pem for i @@ -70,7 +72,7 @@ case $i in mkdir ${CATOP}/crl mkdir ${CATOP}/newcerts mkdir ${CATOP}/private - echo "01" > ${CATOP}/serial + echo "00" > ${CATOP}/serial touch ${CATOP}/index.txt fi if [ ! -f ${CATOP}/private/$CAKEY ]; then @@ -83,8 +85,11 @@ case $i in RET=$? else echo "Making CA certificate ..." - $REQ -new -x509 -keyout ${CATOP}/private/$CAKEY \ - -out ${CATOP}/$CACERT $DAYS + $REQ -new -keyout ${CATOP}/private/$CAKEY \ + -out ${CATOP}/$CAREQ + $CA -out ${CATOP}/$CACERT $CADAYS -batch \ + -keyfile ${CATOP}/private/$CAKEY -selfsign \ + -infiles ${CATOP}/$CAREQ RET=$? fi fi @@ -204,7 +204,7 @@ static int certify(X509 **xret, char *infile,EVP_PKEY *pkey,X509 *x509, BIGNUM *serial, char *subj, int email_dn, char *startdate, char *enddate, long days, int batch, char *ext_sect, CONF *conf, int verbose, unsigned long certopt, unsigned long nameopt, - int default_op, int ext_copy); + int default_op, int ext_copy, int selfsign); static int certify_cert(X509 **xret, char *infile,EVP_PKEY *pkey,X509 *x509, const EVP_MD *dgst,STACK_OF(CONF_VALUE) *policy, CA_DB *db, BIGNUM *serial, char *subj, int email_dn, @@ -225,7 +225,7 @@ static int do_body(X509 **xret, EVP_PKEY *pkey, X509 *x509, const EVP_MD *dgst, int email_dn, char *startdate, char *enddate, long days, int batch, int verbose, X509_REQ *req, char *ext_sect, CONF *conf, unsigned long certopt, unsigned long nameopt, int default_op, - int ext_copy); + int ext_copy, int selfsign); static int do_revoke(X509 *x509, CA_DB *db, int ext, char *extval); static int get_certificate_status(const char *ser_status, CA_DB *db); static int do_updatedb(CA_DB *db); @@ -292,7 +292,8 @@ int MAIN(int argc, char **argv) unsigned long nameopt = 0, certopt = 0; int default_op = 1; int ext_copy = EXT_COPY_NONE; - X509 *x509=NULL; + int selfsign = 0; + X509 *x509=NULL, *x509p = NULL; X509 *x=NULL; BIO *in=NULL,*out=NULL,*Sout=NULL,*Cout=NULL; char *dbfile=NULL; @@ -406,6 +407,8 @@ EF_ALIGNMENT=0; if (--argc < 1) goto bad; certfile= *(++argv); } + else if (strcmp(*argv,"-selfsign") == 0) + selfsign=1; else if (strcmp(*argv,"-in") == 0) { if (--argc < 1) goto bad; @@ -700,7 +703,7 @@ bad: } /*****************************************************************/ - /* we definitely need a public key, so let's get it */ + /* we definitely need a private key, so let's get it */ if ((keyfile == NULL) && ((keyfile=NCONF_get_string(conf, section,ENV_PRIVATE_KEY)) == NULL)) @@ -728,22 +731,27 @@ bad: /*****************************************************************/ /* we need a certificate */ - if ((certfile == NULL) && ((certfile=NCONF_get_string(conf, - section,ENV_CERTIFICATE)) == NULL)) + if (!selfsign || spkac_file || ss_cert_file || gencrl) { - lookup_fail(section,ENV_CERTIFICATE); - goto err; - } - x509=load_cert(bio_err, certfile, FORMAT_PEM, NULL, e, - "CA certificate"); - if (x509 == NULL) - goto err; + if ((certfile == NULL) + && ((certfile=NCONF_get_string(conf, + section,ENV_CERTIFICATE)) == NULL)) + { + lookup_fail(section,ENV_CERTIFICATE); + goto err; + } + x509=load_cert(bio_err, certfile, FORMAT_PEM, NULL, e, + "CA certificate"); + if (x509 == NULL) + goto err; - if (!X509_check_private_key(x509,pkey)) - { - BIO_printf(bio_err,"CA certificate and CA private key do not match\n"); - goto err; + if (!X509_check_private_key(x509,pkey)) + { + BIO_printf(bio_err,"CA certificate and CA private key do not match\n"); + goto err; + } } + if (!selfsign) x509p = x509; f=NCONF_get_string(conf,BASE_SECTION,ENV_PRESERVE); if (f == NULL) @@ -1175,10 +1183,10 @@ bad: if (infile != NULL) { total++; - j=certify(&x,infile,pkey,x509,dgst,attribs,db, + j=certify(&x,infile,pkey,x509p,dgst,attribs,db, serial,subj,email_dn,startdate,enddate,days,batch, extensions,conf,verbose, certopt, nameopt, - default_op, ext_copy); + default_op, ext_copy, selfsign); if (j < 0) goto err; if (j > 0) { @@ -1195,10 +1203,10 @@ bad: for (i=0; i<argc; i++) { total++; - j=certify(&x,argv[i],pkey,x509,dgst,attribs,db, + j=certify(&x,argv[i],pkey,x509p,dgst,attribs,db, serial,subj,email_dn,startdate,enddate,days,batch, extensions,conf,verbose, certopt, nameopt, - default_op, ext_copy); + default_op, ext_copy, selfsign); if (j < 0) goto err; if (j > 0) { @@ -1515,7 +1523,7 @@ err: BN_free(serial); free_index(db); EVP_PKEY_free(pkey); - X509_free(x509); + if (x509) X509_free(x509); X509_CRL_free(crl); NCONF_free(conf); OBJ_cleanup(); @@ -1533,7 +1541,7 @@ static int certify(X509 **xret, char *infile, EVP_PKEY *pkey, X509 *x509, BIGNUM *serial, char *subj, int email_dn, char *startdate, char *enddate, long days, int batch, char *ext_sect, CONF *lconf, int verbose, unsigned long certopt, unsigned long nameopt, int default_op, - int ext_copy) + int ext_copy, int selfsign) { X509_REQ *req=NULL; BIO *in=NULL; @@ -1558,6 +1566,12 @@ static int certify(X509 **xret, char *infile, EVP_PKEY *pkey, X509 *x509, BIO_printf(bio_err,"Check that the request matches the signature\n"); + if (selfsign && !X509_REQ_check_private_key(req,pkey)) + { + BIO_printf(bio_err,"Certificate request and CA private key do not match\n"); + ok=0; + goto err; + } if ((pktmp=X509_REQ_get_pubkey(req)) == NULL) { BIO_printf(bio_err,"error unpacking public key\n"); @@ -1582,7 +1596,7 @@ static int certify(X509 **xret, char *infile, EVP_PKEY *pkey, X509 *x509, ok=do_body(xret,pkey,x509,dgst,policy,db,serial,subj, email_dn, startdate,enddate,days,batch,verbose,req,ext_sect,lconf, - certopt, nameopt, default_op, ext_copy); + certopt, nameopt, default_op, ext_copy, selfsign); err: if (req != NULL) X509_REQ_free(req); @@ -1636,7 +1650,7 @@ static int certify_cert(X509 **xret, char *infile, EVP_PKEY *pkey, X509 *x509, ok=do_body(xret,pkey,x509,dgst,policy,db,serial,subj,email_dn,startdate,enddate, days,batch,verbose,rreq,ext_sect,lconf, certopt, nameopt, default_op, - ext_copy); + ext_copy, 0); err: if (rreq != NULL) X509_REQ_free(rreq); @@ -1649,7 +1663,7 @@ static int do_body(X509 **xret, EVP_PKEY *pkey, X509 *x509, const EVP_MD *dgst, int email_dn, char *startdate, char *enddate, long days, int batch, int verbose, X509_REQ *req, char *ext_sect, CONF *lconf, unsigned long certopt, unsigned long nameopt, int default_op, - int ext_copy) + int ext_copy, int selfsign) { X509_NAME *name=NULL,*CAname=NULL,*subject=NULL, *dn_subject=NULL; ASN1_UTCTIME *tm,*tmptm; @@ -1753,7 +1767,10 @@ static int do_body(X509 **xret, EVP_PKEY *pkey, X509 *x509, const EVP_MD *dgst, } /* take a copy of the issuer name before we mess with it. */ - CAname=X509_NAME_dup(x509->cert_info->subject); + if (selfsign) + CAname=X509_NAME_dup(name); + else + CAname=X509_NAME_dup(x509->cert_info->subject); if (CAname == NULL) goto err; str=str2=NULL; @@ -1965,8 +1982,16 @@ again2: if (BN_to_ASN1_INTEGER(serial,ci->serialNumber) == NULL) goto err; - if (!X509_set_issuer_name(ret,X509_get_subject_name(x509))) - goto err; + if (selfsign) + { + if (!X509_set_issuer_name(ret,subject)) + goto err; + } + else + { + if (!X509_set_issuer_name(ret,X509_get_subject_name(x509))) + goto err; + } if (strcmp(startdate,"today") == 0) X509_gmtime_adj(X509_get_notBefore(ret),0); @@ -2001,7 +2026,10 @@ again2: ci->extensions = NULL; /* Initialize the context structure */ - X509V3_set_ctx(&ctx, x509, ret, req, NULL, 0); + if (selfsign) + X509V3_set_ctx(&ctx, ret, ret, req, NULL, 0); + else + X509V3_set_ctx(&ctx, x509, ret, req, NULL, 0); if (extconf) { @@ -2344,7 +2372,7 @@ static int certify_spkac(X509 **xret, char *infile, EVP_PKEY *pkey, X509 *x509, EVP_PKEY_free(pktmp); ok=do_body(xret,pkey,x509,dgst,policy,db,serial,subj,email_dn,startdate,enddate, days,1,verbose,req,ext_sect,lconf, certopt, nameopt, default_op, - ext_copy); + ext_copy, 0); err: if (req != NULL) X509_REQ_free(req); if (parms != NULL) CONF_free(parms); diff --git a/doc/HOWTO/certificates.txt b/doc/HOWTO/certificates.txt index d3a62545ad..a8a34c7abc 100644 --- a/doc/HOWTO/certificates.txt +++ b/doc/HOWTO/certificates.txt @@ -66,14 +66,13 @@ Section 5 will tell you more on how to handle the certificate you received. -4. Creating a self-signed certificate +4. Creating a self-signed test certificate If you don't want to deal with another certificate authority, or just -want to create a test certificate for yourself, or are setting up a -certificate authority of your own, you may want to make the requested -certificate a self-signed one. This is similar to creating a -certificate request, but creates a certificate instead of a -certificate request (1095 is 3 years): +want to create a test certificate for yourself. This is similar to +creating a certificate request, but creates a certificate instead of +a certificate request. This is NOT the recommended way to create a +CA certificate, see ca.txt. openssl req -new -x509 -key privkey.pem -out cacert.pem -days 1095 |