Ubuntu Manpage: ipsec_scepclient - Client for the SCEP protocol

Provided by: strongswan-starter_5.3.5-1ubuntu3.8_amd64

NAME

       ipsec_scepclient - Client for the SCEP protocol

SYNOPSIS

       ipsec scepclient [argument ...]

       ipsec scepclient --help
       ipsec scepclient --version

DESCRIPTION

       scepclient  is  a  client  implementation  of Cisco System's Simple Certificate Enrollment
       Protocol (SCEP) written for Linux strongSwan <http://www.strongswan.org>.   scepclient  is
       designed  to  be  used  for  certificate enrollment on machines using the OpenSource IPsec
       solution strongSwan.

FEATURES

       scepclient implements the following features of SCEP:

       -   Automatic enrollment of client certificate using a preshared secret

       -   Manual enrollment of client certificate. Offline fingerprint check required!

       -   Acquisition of CA certificate(s)

OPTIONS

Basic Startup Options
-v, --version
Display the version of ipsec scepclient.

-h, --help
Display usage of ipsec scepclient.

General Options
-u, --url url
Full HTTP URL of the SCEP server to be used for certificate enrollment and CA
certificate acquisition.

-+, --optionsfrom filename
Reads additional options from filename.

-f, --force
Overwrite existing output file[s].

-q, --quiet
Do not write log output to stderr.

Options for CA Certificate Acquisition
-o, --out cacert[=filename]
Output file of acquired CA certificate. If more then one CA certificate is available,
filename is used as prefix for the resulting files (refer to EXAMPLES below for
details).
The default filename is $CONFDIR/ipsec.d/cacerts/caCert.der.

Options For Certificate Enrollment
-i, --in type[=filename]
Input file for certificate enrollment. This option can be specified multiple times to
specify input files for every type. Input files can be either DER or PEM encoded.

Supported values for type:

pkcs1 RSA private key in PKCS#1 file format. If no input of this type is
specified, a RSA key gets generated.
The default filename is $CONFDIR/ipsec.d/private/myKey.der.

pkcs10 PKCS#10 certificate request to be used in the SCEP request. If no input of
this type is specified, a request is generated.
The default filename is $CONFDIR/ipsec.d/req/myReq.der.

cacert-enc CA certificate to encrypt the SCEP request. Has to be specified for
certificate enrollment.
The default filename is $CONFDIR/ipsec.d/cacerts/caCert.der.

cacert-sig CA certificate to check signature of SCEP reply. Has to be specified for
certificate enrollment.
The default filename is $CONFDIR/ipsec.d/cacerts/caCert.der.

cert-self Certificate to be used in the SCEP request. If it is not specified a
self-signed certificate is generated automatically.
The default filename is $CONFDIR/ipsec.d/certs/selfCert.der.

-k, --keylength bits
sets the key length for RSA key generation. The default length for a generated rsa key
is set to 2048 bit.

-D, --days days
Validity of the self-signed X.509 certificate in days. The default is 1825 days (5
years).

-S, --startdate YYMMDDHHMMSSZ
defines the notBefore date when the X.509 certificate becomes valid. The date has
the format YYMMDDHHMMSS and must be specified in UTC (Zulu time). If the --startdate
option is not specified then the current date is taken as a default.

-E, --enddate YYMMDDHHMMSSZ
defines the notAfter date when the X.509 certificate will expire. The date has the
format YYMMDDHHMMSS and must be specified in UTC (Zulu time). If the --enddate option
is not specified then the default notAfter value is computed by adding the validity
interval specified by the --days option to the notBefore date.

-d, --dn dn
Distinguished name as comma separated list of relative distinguished names. Use
quotation marks for a distinguished name containing spaces. If the --dn parameter is
missing then the default "C=CH, O=Linux strongSwan, CN=hostname" is used with hostname
being the return value of the gethostname() function.

-s, --subjectAltName type=value
Include subjectAltName in certificate request. This option can be specified multiple
times to specify a subjectAltName for every type.

Supported values for type:

email subjectAltName is a email address.

dns subjectAltName is a hostname.

ip subjectAltName is a IP address.

-p, --password pw
Password to be included as a challenge password in SCEP request. If pw is %prompt',
the password gets prompted for on the command line.

- In automatic mode, this password corresponds to the preshared secret for the
given enrollment.

- In manual mode, this password can be used to later revoke the corresponding
certificate.

-a, --algorithm [type=]algo
Change the algorithms to be used when generating and transporting (PKCS#7) certificate
requests (PKCS#10).

Supported values for type:

enc symmetric encryption algorithm in PKCS#7

dgst hash algorithm for message digest in PKCS#7

sig hash algorithm for the signature in PKCS#10

If type is not specified enc is assumed.

Supported values for algo (enc):

des DES-CBC encryption (key size = 56 bit). Default.

3des Triple DES-EDE-CBC encryption (key size = 168 bit).

aes128 AES-CBC encryption (key size = 128 bit).

aes192 AES-CBC encryption (key size = 192 bit).

aes256 AES-CBC encryption (key size = 256 bit).

camellia128 Camellia-CBC encryption (key size = 128 bit).

camellia192 Camelllia-CBC encryption (key size = 192 bit).

camellia256 Camellia-CBC encryption (key size = 256 bit).

Supported values for algo (dgst or sig):

md5 (default), sha1, sha256, sha384, sha512

-o, --out type[=filename]
Output file for certificate enrollment. This option can be specified multiple times to
specify output files for every type.

Supported values for type:

pkcs1 RSA private key in PKCS#1 file format. If specified, the RSA key used for
enrollment is stored in file filename. If none of the types listed below
are specified, scepclient will stop after outputting this file.
The default filename is $CONFDIR/ipsec.d/private/myKey.der.

pkcs10 PKCS#10 certificate request. If specified, the PKCS#10 request used or
certificate enrollment is stored in file filename. If none of the types
listed below are specified, scepclient will stop after outputting this
file.
The default filename is $CONFDIR/ipsec.d/req/myReq.der.

pkcs7 PKCS#7 SCEP request as it is sent using HTTP to the SCEP server. If
specified, this SCEP request is stored in file filename. If none of types
listed below is not specified, scepclient will stop after outputting this
file.
The default filename is $CONFDIR/ipsec.d/req/pkcs7.der.

cert-self Self-signed certificate. If specified the self-signed certificate is
stored in file filename.
The default filename is $CONFDIR/ipsec.d/certs/selfCert.der.

cert Enrolled certificate. This type must be specified for certificate
enrollment. The enrolled certificate is stored in file filename.
The default filename is set to $CONFDIR/ipsec.d/certs/myCert.der.

-m, --method method
Change HTTP request method for certificate enrollment. Default is get.

Supported values for method:

post Certificate enrollment using HTTP POST. Must be supported by the given
SCEP server.

get Certificate enrollment using HTTP GET.

-t, --interval seconds
Set interval time in seconds when polling in manual mode. The default interval is set
to 5 seconds.

-x, --maxpolltime seconds
Set max time in seconds to poll in manual mode. The default max time is set to
unlimited.

Debugging Output Options:
-l, --debug level
Changes the log level (-1..4, default: 1)

EXAMPLES

       ipsec scepclient --out caCert --url http://scepserver/cgi-bin/pkiclient.exe -f
           Acquire  CA  certificate  from  SCEP  server  and  store  it  in  the   default   file
           $CONFDIR/ipsec.d/cacerts/caCert.der.   If  more  then  one CA certificate is returned,
           store them in files named ´caCert-1.der´, ´caCert-2.der´, etc.  If an  RA  certificate
           is  returned,  store  it  in  a  file  named  ´caCert-ra.der´.   If  more  than one RA
           certificate   is   returned,   store   them   in   files   named    ´caCert-ra-1.der´,
           ´caCert-ra-2.der´, etc.

       ipsec scepclient --out pkcs1=joeKey.der -k 1024
           Generate RSA private key with key length of 1024 bit and store it in file joeKey.der.

       ipsec scepclient --in pkcs1=joeKey.der --out pkcs10=joeReq.der \
       --dn ”C=AT, CN=John Doe” -s email=john@doe.com -p mypassword
           Generate  a  PKCS#10  request and store it in file joeReq.der. Use the RSA private key
           joeKey.der  created  earlier  to  sign  the  PKCS#10-Request.  In  addition   to   the
           distinguished  name  include  a  email-subjectAltName  and a challenge password in the
           request.

       ipsec scepclient --out pkcs1=joeKey.der --out cert==joeCert.der \
       --dn ”C=CH, CN=John Doe” -k 512 -p 5xH2pnT7wq \
       --url http://scep.hsr.ch/cgi-bin/pkiclient.exe \
       --in cacert-enc=caCert.der --in cacert-sig=caCert.der
           Generate a new RSA key for the request and store  it  in  joeKey.der.  Then  enroll  a
           certificate  and  store  as  joeCert.der.  The challenge password is '5xH2pnT7wq'. The
           encryption and signature check has to be made with the same CA certificate caCert.der.

BUGS

       --optionsfrom seems to have parsing problems reading option files  containing  strings  in
       quotation marks.