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cdesc-OCSP.ri
U:RDoc::NormalModule[iI" OCSP:ETI"OpenSSL::OCSP;T0o:RDoc::Markup::Document: @parts[o;;[(o: RDoc::Markup::Paragraph;[I"JOpenSSL::OCSP implements Online Certificate Status Protocol requests ;TI"and responses.;To: RDoc::Markup::BlankLine o; ;[ I"ICreating and sending an OCSP request requires a subject certificate ;TI"Kthat contains an OCSP URL in an authorityInfoAccess extension and the ;TI"Missuer certificate for the subject certificate. First, load the issuer ;TI" and subject certificates:;T@o:RDoc::Markup::Verbatim;[I":subject = OpenSSL::X509::Certificate.new subject_pem ;TI"9issuer = OpenSSL::X509::Certificate.new issuer_pem ;T: @format0o; ;[I"FTo create the request we need to create a certificate ID for the ;TI"Isubject certificate so the CA knows which certificate we are asking ;TI" about:;T@o; ;[I"*digest = OpenSSL::Digest.new('SHA1') ;TI"certificate_id = ;TI"@ OpenSSL::OCSP::CertificateId.new subject, issuer, digest ;T; 0o; ;[I"<Then create a request and add the certificate ID to it:;T@o; ;[I"*request = OpenSSL::OCSP::Request.new ;TI"'request.add_certid certificate_id ;T; 0o; ;[I"KAdding a nonce to the request protects against replay attacks but not ;TI" all CA process the nonce.;T@o; ;[I"request.add_nonce ;T; 0o; ;[I"MTo submit the request to the CA for verification we need to extract the ;TI"+OCSP URI from the subject certificate:;T@o; ;[ I"#ocsp_uris = subject.ocsp_uris ;TI" ;TI"require 'uri' ;TI" ;TI"!ocsp_uri = URI ocsp_uris[0] ;T; 0o; ;[I"KTo submit the request we'll POST the request to the OCSP URI (per RFC ;TI"I2560). Note that we only handle HTTP requests and don't handle any ;TI"Hredirects in this example, so this is insufficient for serious use.;T@o; ;[I"require 'net/http' ;TI" ;TI"http_response = ;TI"> Net::HTTP.start ocsp_uri.hostname, ocsp.port do |http| ;TI"2 http.post ocsp_uri.path, request.to_der, ;TI"@ 'content-type' => 'application/ocsp-request' ;TI" end ;TI" ;TI"?response = OpenSSL::OCSP::Response.new http_response.body ;TI"%response_basic = response.basic ;T; 0o; ;[ I"LFirst we check if the response has a valid signature. Without a valid ;TI"Isignature we cannot trust it. If you get a failure here you may be ;TI"Kmissing a system certificate store or may be missing the intermediate ;TI"certificates.;T@o; ;[ I"&store = OpenSSL::X509::Store.new ;TI" store.set_default_paths ;TI" ;TI"1unless response_basic.verify [], store then ;TI"? raise 'response is not signed by a trusted certificate' ;TI" end ;T; 0o; ;[I"JThe response contains the status information (success/fail). We can ;TI"$display the status as a string:;T@o; ;[I"0puts response.status_string #=> successful ;T; 0o; ;[ I"LNext we need to know the response details to determine if the response ;TI"Imatches our request. First we check the nonce. Again, not all CAs ;TI"Gsupport a nonce. See Request#check_nonce for the meanings of the ;TI"return values.;T@o; ;[I"Ap request.check_nonce basic_response #=> value from -1 to 3 ;T; 0o; ;[I"LThen extract the status information for the certificate from the basic ;TI"response.;T@o; ;[ I"Dsingle_response = basic_response.find_response(certificate_id) ;TI" ;TI" unless single_response ;TI"K raise 'basic_response does not have the status for the certificate' ;TI" end ;T; 0o; ;[I"MThen check the validity. A status issued in the future must be rejected.;T@o; ;[I"+unless single_response.check_validity ;TI"K raise 'this_update is in the future or next_update time has passed' ;TI" end ;TI" ;TI"&case single_response.cert_status ;TI"+when OpenSSL::OCSP::V_CERTSTATUS_GOOD ;TI") puts 'certificate is still valid' ;TI".when OpenSSL::OCSP::V_CERTSTATUS_REVOKED ;TI"Q puts "certificate has been revoked at #{single_response.revocation_time}" ;TI".when OpenSSL::OCSP::V_CERTSTATUS_UNKNOWN ;TI"; puts 'responder doesn't know about the certificate' ;TI"end;T; 0: @fileI" ext/openssl/ossl_ocsp.c;T:0@omit_headings_from_table_of_contents_below0; 0;0[ [%U:RDoc::Constant[i I""RESPONSE_STATUS_INTERNALERROR;TI"1OpenSSL::OCSP::RESPONSE_STATUS_INTERNALERROR;T: public0o;;[o; ;[I" Internal error in issuer;T@; @…;0@…@cRDoc::NormalModule0U;[i I"%RESPONSE_STATUS_MALFORMEDREQUEST;TI"4OpenSSL::OCSP::RESPONSE_STATUS_MALFORMEDREQUEST;T;0o;;[o; ;[I"!Illegal confirmation request;T@; @…;0@…@@‘0U;[i I" REVOKED_STATUS_NOSTATUS;TI"+OpenSSL::OCSP::REVOKED_STATUS_NOSTATUS;T;0o;;[o; ;[I"6The certificate was revoked for an unknown reason;T@; @…;0@…@@‘0U;[i I" RESPONSE_STATUS_SIGREQUIRED;TI"/OpenSSL::OCSP::RESPONSE_STATUS_SIGREQUIRED;T;0o;;[o; ;[I"+You must sign the request and resubmit;T@; @…;0@…@@‘0U;[i I" RESPONSE_STATUS_SUCCESSFUL;TI".OpenSSL::OCSP::RESPONSE_STATUS_SUCCESSFUL;T;0o;;[o; ;[I"%Response has valid confirmations;T@; @…;0@…@@‘0U;[i I" RESPONSE_STATUS_TRYLATER;TI",OpenSSL::OCSP::RESPONSE_STATUS_TRYLATER;T;0o;;[o; ;[I"Try again later;T@; @…;0@…@@‘0U;[i I"&REVOKED_STATUS_AFFILIATIONCHANGED;TI"5OpenSSL::OCSP::REVOKED_STATUS_AFFILIATIONCHANGED;T;0o;;[o; ;[I"@The certificate subject's name or other information changed;T@; @…;0@…@@‘0U;[i I" REVOKED_STATUS_CACOMPROMISE;TI"/OpenSSL::OCSP::REVOKED_STATUS_CACOMPROMISE;T;0o;;[o; ;[I"<This CA certificate was revoked due to a key compromise;T@; @…;0@…@@‘0U;[i I"#REVOKED_STATUS_CERTIFICATEHOLD;TI"2OpenSSL::OCSP::REVOKED_STATUS_CERTIFICATEHOLD;T;0o;;[o; ;[I" The certificate is on hold;T@; @…;0@…@@‘0U;[i I"(REVOKED_STATUS_CESSATIONOFOPERATION;TI"7OpenSSL::OCSP::REVOKED_STATUS_CESSATIONOFOPERATION;T;0o;;[o; ;[I"(The certificate is no longer needed;T@; @…;0@…@@‘0U;[i I"!REVOKED_STATUS_KEYCOMPROMISE;TI"0OpenSSL::OCSP::REVOKED_STATUS_KEYCOMPROMISE;T;0o;;[o; ;[I"8The certificate was revoked due to a key compromise;T@; @…;0@…@@‘0U;[i I"!REVOKED_STATUS_REMOVEFROMCRL;TI"0OpenSSL::OCSP::REVOKED_STATUS_REMOVEFROMCRL;T;0o;;[o; ;[I"KThe certificate was previously on hold and should now be removed from ;TI" the CRL;T@; @…;0@…@@‘0U;[i I" REVOKED_STATUS_SUPERSEDED;TI"-OpenSSL::OCSP::REVOKED_STATUS_SUPERSEDED;T;0o;;[o; ;[I"8The certificate was superseded by a new certificate;T@; @…;0@…@@‘0U;[i I"!RESPONSE_STATUS_UNAUTHORIZED;TI"0OpenSSL::OCSP::RESPONSE_STATUS_UNAUTHORIZED;T;0o;;[o; ;[I""Your request is unauthorized.;T@; @…;0@…@@‘0U;[i I" REVOKED_STATUS_UNSPECIFIED;TI".OpenSSL::OCSP::REVOKED_STATUS_UNSPECIFIED;T;0o;;[o; ;[I":The certificate was revoked for an unspecified reason;T@; @…;0@…@@‘0U;[i I" NOCERTS;TI"OpenSSL::OCSP::NOCERTS;T;0o;;[o; ;[I"0Do not include certificates in the response;T@; @…;0@…@@‘0U;[i I" NOINTERN;TI" OpenSSL::OCSP::NOINTERN;T;0o;;[o; ;[I"FDo not search certificates contained in the response for a signer;T@; @…;0@…@@‘0U;[i I" NOSIGS;TI"OpenSSL::OCSP::NOSIGS;T;0o;;[o; ;[I"/Do not check the signature on the response;T@; @…;0@…@@‘0U;[i I" NOCHAIN;TI"OpenSSL::OCSP::NOCHAIN;T;0o;;[o; ;[I"8Do not verify the certificate chain on the response;T@; @…;0@…@@‘0U;[i I" NOVERIFY;TI" OpenSSL::OCSP::NOVERIFY;T;0o;;[o; ;[I"&Do not verify the response at all;T@; @…;0@…@@‘0U;[i I"NOEXPLICIT;TI" OpenSSL::OCSP::NOEXPLICIT;T;0o;;[o; ;[I"Do not check trust;T@; @…;0@…@@‘0U;[i I" NOCASIGN;TI" OpenSSL::OCSP::NOCASIGN;T;0o;;[o; ;[I".(This flag is not used by OpenSSL 1.0.1g);T@; @…;0@…@@‘0U;[i I"NODELEGATED;TI" OpenSSL::OCSP::NODELEGATED;T;0o;;[o; ;[I".(This flag is not used by OpenSSL 1.0.1g);T@; @…;0@…@@‘0U;[i I" NOCHECKS;TI" OpenSSL::OCSP::NOCHECKS;T;0o;;[o; ;[I"6Do not make additional signing certificate checks;T@; @…;0@…@@‘0U;[i I"TRUSTOTHER;TI" OpenSSL::OCSP::TRUSTOTHER;T;0o;;[o; ;[I"*Do not verify additional certificates;T@; @…;0@…@@‘0U;[i I"RESPID_KEY;TI" OpenSSL::OCSP::RESPID_KEY;T;0o;;[o; ;[I"<Identify the response by signing the certificate key ID;T@; @…;0@…@@‘0U;[i I" NOTIME;TI"OpenSSL::OCSP::NOTIME;T;0o;;[o; ;[I"/Do not include producedAt time in response;T@; @…;0@…@@‘0U;[i I"V_CERTSTATUS_GOOD;TI"%OpenSSL::OCSP::V_CERTSTATUS_GOOD;T;0o;;[o; ;[I"LIndicates the certificate is not revoked but does not necessarily mean ;TI"Dthe certificate was issued or that this response is within the ;TI"$certificate's validity interval;T@; @…;0@…@@‘0U;[i I"V_CERTSTATUS_REVOKED;TI"(OpenSSL::OCSP::V_CERTSTATUS_REVOKED;T;0o;;[o; ;[I"FIndicates the certificate has been revoked either permanently or ;TI"temporarily (on hold).;T@; @…;0@…@@‘0U;[i I"V_CERTSTATUS_UNKNOWN;TI"(OpenSSL::OCSP::V_CERTSTATUS_UNKNOWN;T;0o;;[o; ;[I"GIndicates the responder does not know about the certificate being ;TI"requested.;T@; @…;0@…@@‘0U;[i I"V_RESPID_NAME;TI"!OpenSSL::OCSP::V_RESPID_NAME;T;0o;;[o; ;[I"/The responder ID is based on the key name.;T@; @…;0@…@@‘0U;[i I"V_RESPID_KEY;TI" OpenSSL::OCSP::V_RESPID_KEY;T;0o;;[o; ;[I"1The responder ID is based on the public key.;T@; @…;0@…@@‘0[ [[I" class;T[[;[ [:protected[ [: private[ [I" instance;T[[;[ [;[ [;[ [ [U:RDoc::Context::Section[i 0o;;[ ; 0;0[I"ext/openssl/ossl.c;TI" OpenSSL;T@‘