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author | Nikos Mavrogiannopoulos <nmav@gnutls.org> | 2012-01-29 14:08:07 +0100 |
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committer | Nikos Mavrogiannopoulos <nmav@gnutls.org> | 2012-01-29 14:19:24 +0100 |
commit | e45eeba9ea262d0b476f280188e2031c541ee19e (patch) | |
tree | a872f09e805ee9fa35e07b24ef4609c4f8e07521 /doc/cha-cert-auth2.texi | |
parent | d1e72335d8ab29a94e7b42f63ce74af0c39ff898 (diff) | |
download | gnutls-e45eeba9ea262d0b476f280188e2031c541ee19e.tar.gz |
Manual pages for included programs are auto-generated using the autoopts definitions.
Diffstat (limited to 'doc/cha-cert-auth2.texi')
-rw-r--r-- | doc/cha-cert-auth2.texi | 663 |
1 files changed, 6 insertions, 657 deletions
diff --git a/doc/cha-cert-auth2.texi b/doc/cha-cert-auth2.texi index 251d73f231..9d246b04bb 100644 --- a/doc/cha-cert-auth2.texi +++ b/doc/cha-cert-auth2.texi @@ -12,8 +12,8 @@ structures, etc., are discussed in this chapter. * PKIX certificate revocation lists:: * OCSP certificate status checking:: * Managing encrypted keys:: -* The certtool application:: -* The ocsptool application:: +* certtool Invocation:: Invoking certtool +* ocsptool Invocation:: Invoking ocsptool * Smart cards and HSMs:: * Abstract key types:: @end menu @@ -351,565 +351,9 @@ of their usage is also shown. @verbatiminclude examples/ex-pkcs12.c -@node The certtool application -@section The certtool application -@cindex certtool +@include invoke-certtool.texi -This is a program to generate @acronym{X.509} certificates, certificate -requests, CRLs and private keys. - -@example -Certtool help -Usage: certtool [options] - -s, --generate-self-signed - Generate a self-signed certificate. - -c, --generate-certificate - Generate a signed certificate. - --generate-proxy Generate a proxy certificate. - --generate-crl Generate a CRL. - -u, --update-certificate - Update a signed certificate. - -p, --generate-privkey Generate a private key. - -q, --generate-request Generate a PKCS #10 certificate - request. - -e, --verify-chain Verify a PEM encoded certificate chain. - The last certificate in the chain must - be a self signed one. - --verify Verify a PEM encoded certificate chain. - CA certificates must be loaded with - --load-ca-certificate. - --verify-crl Verify a CRL. - --generate-dh-params Generate PKCS #3 encoded Diffie-Hellman - parameters. - --get-dh-params Get the included PKCS #3 encoded - Diffie-Hellman parameters. - --load-privkey FILE Private key file to use. - --load-pubkey FILE Public key file to use. - --load-request FILE Certificate request file to use. - --load-certificate FILE - Certificate file to use. - --load-ca-privkey FILE Certificate authority's private key - file to use. - --load-ca-certificate FILE - Certificate authority's certificate - file to use. - --password PASSWORD Password to use. - -i, --certificate-info Print information on a certificate. - --certificate-pubkey Print certificate public key. - --pgp-certificate-info Print information on a OpenPGP - certificate. - --pgp-ring-info Print information on a keyring - structure. - -l, --crl-info Print information on a CRL. - --crq-info Print information on a Certificate - Request. - --no-crq-extensions Do not use extensions in certificate - requests. - --p12-info Print information on a PKCS #12 - structure. - --p7-info Print information on a PKCS #7 - structure. - --smime-to-p7 Convert S/MIME to PKCS #7 structure. - -k, --key-info Print information on a private key. - --pgp-key-info Print information on a OpenPGP private - key. - --pubkey-info Print information on a public key. - --fix-key Regenerate the parameters in a private - key. - --v1 Generate an X.509 version 1 certificate - (no extensions). - --to-p12 Generate a PKCS #12 structure. - --to-p8 Generate a PKCS #8 key structure. - -8, --pkcs8 Use PKCS #8 format for private keys. - --dsa Use DSA keys. - --ecc Use ECC (ECDSA) keys. - --hash STR Hash algorithm to use for signing - (MD5,SHA1,RMD160,SHA256,SHA384,SHA512). - --export-ciphers Use weak encryption algorithms. - --inder Use DER format for input certificates - and private keys. - --inraw Use RAW/DER format for input - certificates and private keys. - --outder Use DER format for output certificates - and private keys. - --outraw Use RAW/DER format for output - certificates and private keys. - --bits BITS specify the number of bits for key - generation. - --sec-param PARAM specify the security level - [low|normal|high|ultra]. - --disable-quick-random Use /dev/random for key generationg, - thus increasing the quality of - randomness used. - --outfile FILE Output file. - --infile FILE Input file. - --template FILE Template file to use for non - interactive operation. - --pkcs-cipher CIPHER Cipher to use for pkcs operations - (3des,3des-pkcs12,aes-128,aes-192,aes-25 - 6,rc2-40,arcfour). - -d, --debug LEVEL specify the debug level. Default is 1. - -h, --help shows this help text - -v, --version shows the program's version -@end example - -The program can be used interactively or non interactively by -specifying the @code{--template} command line option. See below for an -example of a template file. - -@subheading Diffie-Hellman parameter generation -To generate parameters for Diffie-Hellman key exchange, use the command: -@example -$ certtool --generate-dh-params --outfile dh.pem --sec-param normal -@end example - -@subheading Self-signed certificate generation - -To create a self signed certificate, use the command: -@example -$ certtool --generate-privkey --outfile ca-key.pem -$ certtool --generate-self-signed --load-privkey ca-key.pem \ - --outfile ca-cert.pem -@end example - -Note that a self-signed certificate usually belongs to a certificate -authority, that signs other certificates. - -@subheading Private key generation -To create a private key (RSA by default), run: - -@example -$ certtool --generate-privkey --outfile key.pem -@end example - -To create a DSA or elliptic curves (ECDSA) private key use the -above command combined with @code{--dsa} or @code{--ecc} options. - -@subheading Certificate generation -To generate a certificate using the private key, use the command: - -@example -$ certtool --generate-certificate --load-privkey key.pem \ - --outfile cert.pem --load-ca-certificate ca-cert.pem \ - --load-ca-privkey ca-key.pem -@end example - -Alternatively you may create a certificate request, which is needed -when the certificate will be signed by a third party authority. - -@example -$ certtool --generate-request --load-privkey key.pem \ - --outfile request.pem -@end example - -If the private key is stored in a smart card you can generate -a request by specifying the private key object URL (see @ref{The p11tool application} -on how to obtain the URL). - -@example -$ certtool --generate-request --load-privkey pkcs11:(PRIVKEY URL) \ - --load-pubkey pkcs11:(PUBKEY URL) --outfile request.pem -@end example - -To generate a certificate using the previous request, use the command: - -@example -$ certtool --generate-certificate --load-request request.pem \ - --outfile cert.pem \ - --load-ca-certificate ca-cert.pem --load-ca-privkey ca-key.pem -@end example - -@subheading Certificate information -To view the certificate information, use: - -@example -$ certtool --certificate-info --infile cert.pem -@end example - -@subheading @acronym{PKCS} #12 structure generation -To generate a @acronym{PKCS} #12 structure using the previous key and -certificate, use the command: - -@example -$ certtool --load-certificate cert.pem --load-privkey key.pem \ - --to-p12 --outder --outfile key.p12 -@end example - -Some tools (reportedly web browsers) have problems with that file -because it does not contain the CA certificate for the certificate. -To work around that problem in the tool, you can use the ---load-ca-certificate parameter as follows: - -@example -$ certtool --load-ca-certificate ca.pem \ - --load-certificate cert.pem --load-privkey key.pem \ - --to-p12 --outder --outfile key.p12 -@end example - -@subheading Proxy certificate generation -Proxy certificate can be used to delegate your credential to a -temporary, typically short-lived, certificate. To create one from the -previously created certificate, first create a temporary key and then -generate a proxy certificate for it, using the commands: - -@example -$ certtool --generate-privkey > proxy-key.pem -$ certtool --generate-proxy --load-ca-privkey key.pem \ - --load-privkey proxy-key.pem --load-certificate cert.pem \ - --outfile proxy-cert.pem -@end example - -@subheading Certificate revocation list generation -To create an empty Certificate Revocation List (CRL) do: - -@example -$ certtool --generate-crl --load-ca-privkey x509-ca-key.pem \ - --load-ca-certificate x509-ca.pem -@end example - -To create a CRL that contains some revoked certificates, place the -certificates in a file and use @code{--load-certificate} as follows: - -@example -$ certtool --generate-crl --load-ca-privkey x509-ca-key.pem \ - --load-ca-certificate x509-ca.pem --load-certificate revoked-certs.pem -@end example - -To verify a Certificate Revocation List (CRL) do: - -@example -$ certtool --verify-crl --load-ca-certificate x509-ca.pem < crl.pem -@end example - - - -@subheading Certtool's template file format: -A template file can be used to avoid the interactive questions of -certtool. Initially create a file named 'cert.cfg' that contains the information -about the certificate. The template can be used as below: - -@example -$ certtool --generate-certificate cert.pem --load-privkey key.pem \ - --template cert.cfg \ - --load-ca-certificate ca-cert.pem --load-ca-privkey ca-key.pem -@end example - -An example certtool template file that can be used to generate a certificate -request or a self signed certificate follows. - -@example -# X.509 Certificate options -# -# DN options - -# The organization of the subject. -organization = "Koko inc." - -# The organizational unit of the subject. -unit = "sleeping dept." - -# The locality of the subject. -# locality = - -# The state of the certificate owner. -state = "Attiki" - -# The country of the subject. Two letter code. -country = GR - -# The common name of the certificate owner. -cn = "Cindy Lauper" - -# A user id of the certificate owner. -#uid = "clauper" - -# If the supported DN OIDs are not adequate you can set -# any OID here. -# For example set the X.520 Title and the X.520 Pseudonym -# by using OID and string pairs. -#dn_oid = 2.5.4.12 Dr. -#dn_oid = 2.5.4.65 jackal - -# This is deprecated and should not be used in new -# certificates. -# pkcs9_email = "none@@none.org" - -# The serial number of the certificate -serial = 007 - -# In how many days, counting from today, this certificate will expire. -expiration_days = 700 - -# X.509 v3 extensions - -# A dnsname in case of a WWW server. -#dns_name = "www.none.org" -#dns_name = "www.morethanone.org" - -# An IP address in case of a server. -#ip_address = "192.168.1.1" - -# An email in case of a person -email = "none@@none.org" - -# Challenge password used in certificate requests -challenge_passwd = 123456 - -# key_purpose_oid = 1.2.3.4.5.6.7 -# key_purpose_oid = 1.2.3.4.5.6.7.9 - -# An URL that has CRLs (certificate revocation lists) -# available. Needed in CA certificates. -#crl_dist_points = "http://www.getcrl.crl/getcrl/" - -# Whether this is a CA certificate or not -#ca - -# Whether this certificate will be used for a TLS client -#tls_www_client - -# Whether this certificate will be used for a TLS server -#tls_www_server - -# Whether this certificate will be used to sign data (needed -# in TLS DHE ciphersuites). -signing_key - -# Whether this certificate will be used to encrypt data (needed -# in TLS RSA ciphersuites). Note that it is preferred to use different -# keys for encryption and signing. -#encryption_key - -# Whether this key will be used to sign other certificates. -#cert_signing_key - -# Whether this key will be used to sign CRLs. -#crl_signing_key - -# Whether this key will be used to sign code. -#code_signing_key - -# Whether this key will be used to sign OCSP data. -#ocsp_signing_key - -# Whether this key will be used for time stamping. -#time_stamping_key - -# Whether this key will be used for IPsec IKE operations. -#ipsec_ike_key - -# When generating a certificate from a certificate -# request, then honor the extensions stored in the request -# and store them in the real certificate. -#honor_crq_extensions - -# Path length contraint. Sets the maximum number of -# certificates that can be used to certify this certificate. -# (i.e. the certificate chain length) -#path_len = -1 -#path_len = 2 - -# Options for proxy certificates -# proxy_policy_language = 1.3.6.1.5.5.7.21.1 - -# Options for generating a CRL - -# next CRL update will be in 43 days (wow) -#crl_next_update = 43 - -# this is the 5th CRL by this CA -#crl_number = 5 - -@end example - -@node The ocsptool application -@section The ocsptool application -@cindex ocsptool - -This is a program that can parse and print information about -@acronym{OCSP} requests/responses, generate requests and verify -responses. - -@example -Ocsptool help -Usage : ocsptool [options] - -e, --verify-response Verify response. - -i, --request-info Print information on a OCSP request. - -j, --response-info Print information on a OCSP response. - -q, --generate-request Generate a OCSP request. - --no-nonce don't add nonce to OCSP request. - --load-issuer FILE read issuer certificate from FILE. - --load-cert FILE read certificate to check from FILE. - --load-trust FILE read trust anchors from FILE. - --inder Use DER format for input certificates. - -Q, --load-request FILE - read DER encoded OCSP request from - FILE. - -S, --load-response FILE - read DER encoded OCSP response from - FILE. - --outfile FILE Output file. - --infile FILE Input file. - -V, --verbose More verbose output. - -d, --debug integer Enable debugging - -v, --version prints the program's version number - -h, --help shows this help text -@end example - -@subheading Print information about an OCSP request - -To parse an OCSP request and print information about the content, the -@code{-i} or @code{--request-info} parameter may be used as follows. -The @code{-Q} parameter specify the name of the file containing the -OCSP request, and it should contain the OCSP request in binary DER -format. - -@example -$ ocsptool -i -Q ocsp-request.der -@end example - -The input file may also be sent to standard input like this: - -@example -$ cat ocsp-request.der | ocsptool --request-info -@end example - -@subheading Print information about an OCSP response - -Similar to parsing OCSP requests, OCSP responses can be parsed using -the @code{-j} or @code{--response-info} as follows. - -@example -$ ocsptool -j -Q ocsp-response.der -$ cat ocsp-response.der | ocsptool --response-info -@end example - -@subheading Generate an OCSP request - -The @code{-q} or @code{--generate-request} parameters are used to -generate an OCSP request. By default the OCSP request is written to -standard output in binary DER format, but can be stored in a file -using @code{--outfile}. To generate an OCSP request the issuer of the -certificate to check needs to be specified with @code{--load-issuer} -and the certificate to check with @code{--load-cert}. By default PEM -format is used for these files, although @code{--inder} can be used to -specify that the input files are in DER format. - -@example -$ ocsptool -q --load-issuer issuer.pem --load-cert client.pem --outfile ocsp-request.der -@end example - -When generating OCSP requests, the tool will add an OCSP extension -containing a nonce. This behaviour can be disabled by specifying -@code{--no-nonce}. - -@subheading Verify signature in OCSP response - -To verify the signature in an OCSP response the @code{-e} or -@code{--verify-response} parameter is used. The tool will read an -OCSP response in DER format from standard input, or from the file -specified by @code{--load-response}. The OCSP response is verified -against a set of trust anchors, which are specified using -@code{--load-trust}. The trust anchors are concatenated certificates -in PEM format. The certificate that signed the OCSP response needs to -be in the set of trust anchors, or the issuer of the signer -certificate needs to be in the set of trust anchors and the OCSP -Extended Key Usage bit has to be asserted in the signer certificate. - -@example -$ ocsptool -e --load-trust issuer.pem --load-response ocsp-response.der -@end example - -The tool will print status of verification. - -@subheading Verify signature in OCSP response against given certificate - -It is possible to override the normal trust logic if you know that a -certain certificate is supposed to have signed the OCSP response, and -you want to use it to check the signature. This is achieved using -@code{--load-signer} instead of @code{--load-trust}. This will load -one certificate and it will be used to verify the signature in the -OCSP response. It will not check the Extended Key Usage bit. - -@example -$ ocsptool -e --load-signer ocsp-signer.pem --load-response ocsp-response.der -@end example - -This approach is normally only relevant in two situations. The first -is when the OCSP response does not contain a copy of the signer -certificate, so the @code{--load-trust} code would fail. The second -is if you want to avoid the indirect mode where the OCSP response -signer certificate is signed by a trust anchor. - -@subheading Real-world example - -Here is an example of how to generate an OCSP request for a -certificate and to verify the response. For illustration we'll use -the @code{blog.josefsson.org} host, which (as of writing) uses a -certificate from CACert. First we'll use @code{gnutls-cli} to get a -copy of the server certificate chain. The server is not required to -send this information, but this particular one is configured to do so. - -@example -$ echo | gnutls-cli -p 443 blog.josefsson.org --print-cert > chain.pem -@end example - -Use a text editor on @code{chain.pem} to create three files for each -separate certificates, called @code{cert.pem} for the first -certificate for the domain itself, secondly @code{issuer.pem} for the -intermediate certificate and @code{root.pem} for the final root -certificate. - -The domain certificate normally contains a pointer to where the OCSP -responder is located, in the Authority Information Access Information -extension. For example, from @code{certtool -i < cert.pem} there is -this information: - -@example - Authority Information Access Information (not critical): - Access Method: 1.3.6.1.5.5.7.48.1 (id-ad-ocsp) - Access Location URI: http://ocsp.CAcert.org/ -@end example - -This means the CA support OCSP queries over HTTP. We are now ready to -create a OCSP request for the certificate. - -@example -$ ocsptool --generate-request --load-issuer issuer.pem --load-cert cert.pem --outfile ocsp-request.der -@end example - -The request is sent base64 encoded via HTTP to the address indicated -by the id-ad-ocsp extension, as follows. - -@example -$ wget -O ocsp-response.der http://ocsp.CAcert.org/$(base64 -w0 ocsp-request.der) -@end example - -The OCSP response is now in the file @code{ocsp-response.der} and you -can view it using @code{ocsptool -j < ocsp-response.der}. To verify -the signature you need to load the issuer as the trust anchor. - -@example -$ ocsptool --verify-response --load-trust issuer.pem --load-response ocsp-response.der -Verifying OCSP Response: Success. -$ -@end example - -This particular OCSP responder includes its signer certificate in the -OCSP respnose, so you may extract it and use it together with -@code{--load-signer} for verifying the signature directly against the -certificate. - -@example -$ ocsptool -j < ocsp-response.der > signer.pem -$ ocsptool --verify-response --load-signer signer.pem --load-response ocsp-response.der -Verifying OCSP Response: Success. -$ -@end example - -You may experiment passing different certificates to -@code{--load-trust} and @code{--load-signer} to find common error -conditions for OCSP response verification failures. +@include invoke-ocsptool.texi @node Smart cards and HSMs @section Smart cards and HSMs @@ -954,7 +398,7 @@ system, being the @acronym{Gnome Keyring}. * Reading objects:: * Writing objects:: * Using a PKCS11 token with TLS:: -* The p11tool application:: +* p11tool Invocation:: Invoking p11tool @end menu @node PKCS11 Initialization @@ -1078,102 +522,7 @@ certificates by specifying a PKCS #11 URL instead of a filename. @showfuncC{gnutls_certificate_set_x509_trust_file,gnutls_certificate_set_x509_key_file,gnutls_certificate_set_x509_simple_pkcs12_file} -@node The p11tool application -@subsection The p11tool application -@anchor{p11tool} -@cindex p11tool - -p11tool is a program that is used to access tokens -and security modules that support the PKCS #11 API. It requires -individual PKCS #11 modules to be loaded either with the -@code{--provider} option, or by setting up the GnuTLS configuration -file for PKCS #11 as in @ref{Smart cards and HSMs}. - -@example -p11tool help -Usage: p11tool [options] -Usage: p11tool --list-tokens -Usage: p11tool --list-all -Usage: p11tool --export 'pkcs11:...' - - --export URL Export an object specified by a pkcs11 - URL - --list-tokens List all available tokens - --list-mechanisms URL List all available mechanisms in token. - --list-all List all objects specified by a PKCS#11 - URL - --list-all-certs List all certificates specified by a - PKCS#11 URL - --list-certs List certificates that have a private - key specified by a PKCS#11 URL - --list-privkeys List private keys specified by a - PKCS#11 URL - --list-trusted List certificates marked as trusted, - specified by a PKCS#11 URL - --initialize URL Initializes a PKCS11 token. - --write URL Writes loaded certificates, private or - secret keys to a PKCS11 token. - --delete URL Deletes objects matching the URL. - --label label Sets a label for the write operation. - --trusted Marks the certificate to be written as - trusted. - --private Marks the object to be written as - private (requires PIN). - --no-private Marks the object to be written as not - private. - --login Force login to token - --detailed-url Export detailed URLs. - --no-detailed-url Export less detailed URLs. - --secret-key HEX_KEY Provide a hex encoded secret key. - --load-privkey FILE Private key file to use. - --load-pubkey FILE Private key file to use. - --load-certificate FILE - Certificate file to use. - -8, --pkcs8 Use PKCS #8 format for private keys. - --inder Use DER format for input certificates - and private keys. - --inraw Use RAW/DER format for input - certificates and private keys. - --provider Library Specify the pkcs11 provider library - --outfile FILE Output file. - -d, --debug LEVEL specify the debug level. Default is 1. - -h, --help shows this help text -@end example - -After being provided the available PKCS #11 modules, it can list all tokens -available in your system, the objects on the tokens, and perform operations -on them. - -Some examples on how to use p11tool are illustrated in the following paragraphs. - -@subsubheading List all tokens -@example -$ p11tool --list-tokens -@end example - -@subsubheading List all objects -The following command will list all objects in a token. The @code{--login} -is required to show objects marked as private. -@example -$ p11tool --login --list-all -@end example - -@subsubheading Exporting an object -To retrieve an object stored in the card use the following command. -Note however that objects marked as sensitive (typically PKCS #11 private keys) -are not allowed to be extracted from the token. -@example -$ p11tool --login --export [OBJECT URL] -@end example - -@subsubheading Copy an object to a token -To copy an object, such as a certificate or private key to a token -use the following command. -@example -$ p11tool --login --write [TOKEN URL] \ - --load-certificate cert.pem --label "my_cert" -@end example - +@include invoke-p11tool.texi @node Abstract key types @section Abstract key types |