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<h1 class="SECT1"><a name="XMLSEC-VERIFY-WITH-RESTRICTIONS">Verifying a signature with additional restrictions.</a></h1>
<br clear="all"><div class="SECT2">
<h2 class="SECT2"><a name="XMLSEC-EXAMPLE-VERIFY4">verify4.c</a></h2>
<p></p>
<div class="INFORMALEXAMPLE">
<p></p>
<a name="AEN722"></a><pre class="PROGRAMLISTING">/**
* XML Security Library example: Verifying a simple SAML response with X509 certificate
*
* Verifies a simple SAML response. In addition to refular verification
* we ensure that the signature has only one <dsig:Reference/> element
* with an empty or NULL URI attribute and one enveloped signature transform
* as it is required by SAML specification.
*
* This example was developed and tested with OpenSSL crypto library. The
* certificates management policies for another crypto library may break it.
*
* Usage:
* verify4 <signed-file> <trusted-cert-pem-file1> [<trusted-cert-pem-file2> [...]]
*
* Example (sucecess):
* ./verify4 verify4-res.xml rootcert.pem
*
* Example (failure):
* ./verify4 verify4-bad-res.xml rootcert.pem
* In the same time, verify3 example successfuly verifies this signature:
* ./verify3 verify4-bad-res.xml rootcert.pem
*
* This is free software; see Copyright file in the source
* distribution for preciese wording.
*
* Copyright (C) 2002-2003 Aleksey Sanin <aleksey@aleksey.com>
*/
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <libxml/tree.h>
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#ifndef XMLSEC_NO_XSLT
#include <libxslt/xslt.h>
#include <libxslt/security.h>
#endif /* XMLSEC_NO_XSLT */
#include <xmlsec/xmlsec.h>
#include <xmlsec/xmltree.h>
#include <xmlsec/xmldsig.h>
#include <xmlsec/crypto.h>
xmlSecKeysMngrPtr load_trusted_certs(char** files, int files_size);
int verify_file(xmlSecKeysMngrPtr mngr, const char* xml_file);
int
main(int argc, char **argv) {
#ifndef XMLSEC_NO_XSLT
xsltSecurityPrefsPtr xsltSecPrefs = NULL;
#endif /* XMLSEC_NO_XSLT */
xmlSecKeysMngrPtr mngr;
assert(argv);
if(argc < 3) {
fprintf(stderr, "Error: wrong number of arguments.\n");
fprintf(stderr, "Usage: %s <xml-file> <cert-file1> [<cert-file2> [...]]\n", argv[0]);
return(1);
}
/* Init libxml and libxslt libraries */
xmlInitParser();
LIBXML_TEST_VERSION
xmlLoadExtDtdDefaultValue = XML_DETECT_IDS | XML_COMPLETE_ATTRS;
xmlSubstituteEntitiesDefault(1);
#ifndef XMLSEC_NO_XSLT
xmlIndentTreeOutput = 1;
#endif /* XMLSEC_NO_XSLT */
/* Init libxslt */
#ifndef XMLSEC_NO_XSLT
/* disable everything */
xsltSecPrefs = xsltNewSecurityPrefs();
xsltSetSecurityPrefs(xsltSecPrefs, XSLT_SECPREF_READ_FILE, xsltSecurityForbid);
xsltSetSecurityPrefs(xsltSecPrefs, XSLT_SECPREF_WRITE_FILE, xsltSecurityForbid);
xsltSetSecurityPrefs(xsltSecPrefs, XSLT_SECPREF_CREATE_DIRECTORY, xsltSecurityForbid);
xsltSetSecurityPrefs(xsltSecPrefs, XSLT_SECPREF_READ_NETWORK, xsltSecurityForbid);
xsltSetSecurityPrefs(xsltSecPrefs, XSLT_SECPREF_WRITE_NETWORK, xsltSecurityForbid);
xsltSetDefaultSecurityPrefs(xsltSecPrefs);
#endif /* XMLSEC_NO_XSLT */
/* Init xmlsec library */
if(xmlSecInit() < 0) {
fprintf(stderr, "Error: xmlsec initialization failed.\n");
return(-1);
}
/* Check loaded library version */
if(xmlSecCheckVersion() != 1) {
fprintf(stderr, "Error: loaded xmlsec library version is not compatible.\n");
return(-1);
}
/* Load default crypto engine if we are supporting dynamic
* loading for xmlsec-crypto libraries. Use the crypto library
* name ("openssl", "nss", etc.) to load corresponding
* xmlsec-crypto library.
*/
#ifdef XMLSEC_CRYPTO_DYNAMIC_LOADING
if(xmlSecCryptoDLLoadLibrary(BAD_CAST XMLSEC_CRYPTO) < 0) {
fprintf(stderr, "Error: unable to load default xmlsec-crypto library. Make sure\n"
"that you have it installed and check shared libraries path\n"
"(LD_LIBRARY_PATH) envornment variable.\n");
return(-1);
}
#endif /* XMLSEC_CRYPTO_DYNAMIC_LOADING */
/* Init crypto library */
if(xmlSecCryptoAppInit(NULL) < 0) {
fprintf(stderr, "Error: crypto initialization failed.\n");
return(-1);
}
/* Init xmlsec-crypto library */
if(xmlSecCryptoInit() < 0) {
fprintf(stderr, "Error: xmlsec-crypto initialization failed.\n");
return(-1);
}
/* create keys manager and load trusted certificates */
mngr = load_trusted_certs(&(argv[2]), argc - 2);
if(mngr == NULL) {
return(-1);
}
/* verify file */
if(verify_file(mngr, argv[1]) < 0) {
xmlSecKeysMngrDestroy(mngr);
return(-1);
}
/* destroy keys manager */
xmlSecKeysMngrDestroy(mngr);
/* Shutdown xmlsec-crypto library */
xmlSecCryptoShutdown();
/* Shutdown crypto library */
xmlSecCryptoAppShutdown();
/* Shutdown xmlsec library */
xmlSecShutdown();
/* Shutdown libxslt/libxml */
#ifndef XMLSEC_NO_XSLT
xsltFreeSecurityPrefs(xsltSecPrefs);
xsltCleanupGlobals();
#endif /* XMLSEC_NO_XSLT */
xmlCleanupParser();
return(0);
}
/**
* load_trusted_certs:
* @files: the list of filenames.
* @files_size: the number of filenames in #files.
*
* Creates simple keys manager and load trusted certificates from PEM #files.
* The caller is responsible for destroing returned keys manager using
* @xmlSecKeysMngrDestroy.
*
* Returns the pointer to newly created keys manager or NULL if an error
* occurs.
*/
xmlSecKeysMngrPtr
load_trusted_certs(char** files, int files_size) {
xmlSecKeysMngrPtr mngr;
int i;
assert(files);
assert(files_size > 0);
/* create and initialize keys manager, we use a simple list based
* keys manager, implement your own xmlSecKeysStore klass if you need
* something more sophisticated
*/
mngr = xmlSecKeysMngrCreate();
if(mngr == NULL) {
fprintf(stderr, "Error: failed to create keys manager.\n");
return(NULL);
}
if(xmlSecCryptoAppDefaultKeysMngrInit(mngr) < 0) {
fprintf(stderr, "Error: failed to initialize keys manager.\n");
xmlSecKeysMngrDestroy(mngr);
return(NULL);
}
for(i = 0; i < files_size; ++i) {
assert(files[i]);
/* load trusted cert */
if(xmlSecCryptoAppKeysMngrCertLoad(mngr, files[i], xmlSecKeyDataFormatPem, xmlSecKeyDataTypeTrusted) < 0) {
fprintf(stderr,"Error: failed to load pem certificate from \"%s\"\n", files[i]);
xmlSecKeysMngrDestroy(mngr);
return(NULL);
}
}
return(mngr);
}
/**
* verify_file:
* @mngr: the pointer to keys manager.
* @xml_file: the signed XML file name.
*
* Verifies XML signature in #xml_file.
*
* Returns 0 on success or a negative value if an error occurs.
*/
int
verify_file(xmlSecKeysMngrPtr mngr, const char* xml_file) {
xmlDocPtr doc = NULL;
xmlNodePtr node = NULL;
xmlSecDSigCtxPtr dsigCtx = NULL;
int res = -1;
assert(mngr);
assert(xml_file);
/* load file */
doc = xmlParseFile(xml_file);
if ((doc == NULL) || (xmlDocGetRootElement(doc) == NULL)){
fprintf(stderr, "Error: unable to parse file \"%s\"\n", xml_file);
goto done;
}
/* find start node */
node = xmlSecFindNode(xmlDocGetRootElement(doc), xmlSecNodeSignature, xmlSecDSigNs);
if(node == NULL) {
fprintf(stderr, "Error: start node not found in \"%s\"\n", xml_file);
goto done;
}
/* create signature context */
dsigCtx = xmlSecDSigCtxCreate(mngr);
if(dsigCtx == NULL) {
fprintf(stderr,"Error: failed to create signature context\n");
goto done;
}
/* limit the Reference URI attributes to empty or NULL */
dsigCtx->enabledReferenceUris = xmlSecTransformUriTypeEmpty;
/* limit allowed transforms for siganture and reference processing */
if((xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformInclC14NId) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformExclC14NId) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformSha1Id) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformRsaSha1Id) < 0)) {
fprintf(stderr,"Error: failed to limit allowed siganture transforms\n");
goto done;
}
if((xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformInclC14NId) < 0) ||
(xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformExclC14NId) < 0) ||
(xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformSha1Id) < 0) ||
(xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformEnvelopedId) < 0)) {
fprintf(stderr,"Error: failed to limit allowed reference transforms\n");
goto done;
}
/* in addition, limit possible key data to valid X509 certificates only */
if(xmlSecPtrListAdd(&(dsigCtx->keyInfoReadCtx.enabledKeyData), BAD_CAST xmlSecKeyDataX509Id) < 0) {
fprintf(stderr,"Error: failed to limit allowed key data\n");
goto done;
}
/* Verify signature */
if(xmlSecDSigCtxVerify(dsigCtx, node) < 0) {
fprintf(stderr,"Error: signature verify\n");
goto done;
}
/* check that we have only one Reference */
if((dsigCtx->status == xmlSecDSigStatusSucceeded) &&
(xmlSecPtrListGetSize(&(dsigCtx->signedInfoReferences)) != 1)) {
fprintf(stderr,"Error: only one reference is allowed\n");
goto done;
}
/* print verification result to stdout */
if(dsigCtx->status == xmlSecDSigStatusSucceeded) {
fprintf(stdout, "Signature is OK\n");
} else {
fprintf(stdout, "Signature is INVALID\n");
}
/* success */
res = 0;
done:
/* cleanup */
if(dsigCtx != NULL) {
xmlSecDSigCtxDestroy(dsigCtx);
}
if(doc != NULL) {
xmlFreeDoc(doc);
}
return(res);
}
</pre>
<p></p>
</div>
</div>
<br clear="all"><div class="SECT2">
<h2 class="SECT2"><a name="XMLSEC-EXAMPLE-VERIFY4-TMPL">verify4-tmpl.xml</a></h2>
<p></p>
<div class="INFORMALEXAMPLE">
<p></p>
<a name="AEN727"></a><pre class="PROGRAMLISTING"><?xml version="1.0" encoding="UTF-8"?>
<!--
XML Security Library example: A simple SAML response template (verify4 example).
Sign it using the following command (replace __ with double dashes):
../apps/xmlsec sign __privkey rsakey.pem,rsacert.pem __output verify4-res.xml verify4-tmpl.xml
-->
<Response xmlns="urn:oasis:names:tc:SAML:1.0:protocol" xmlns:samlp="urn:oasis:names:tc:SAML:1.0:protocol" IssueInstant="2002-04-18T16:56:54Z" MajorVersion="1" MinorVersion="0" Recipient="https://shire.target.com" ResponseID="7ddc31-ed4a03d703-FB24AD27D96135B68C99FB9AACFE2FFC">
<dsig:Signature xmlns:dsig="http://www.w3.org/2000/09/xmldsig#">
<dsig:SignedInfo>
<dsig:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
<dsig:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
<dsig:Reference URI="">
<dsig:Transforms>
<dsig:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
</dsig:Transforms>
<dsig:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<dsig:DigestValue/>
</dsig:Reference>
</dsig:SignedInfo>
<dsig:SignatureValue/>
<dsig:KeyInfo>
<dsig:X509Data/>
</dsig:KeyInfo>
</dsig:Signature>
<Status>
<StatusCode Value="samlp:Success"/>
</Status>
<Assertion xmlns="urn:oasis:names:tc:SAML:1.0:assertion" AssertionID="7ddc31-ed4a03d735-FB24AD27D96135B68C99FB9AACFE2FFC" IssueInstant="2002-04-18T16:56:54Z" Issuer="hs.osu.edu" MajorVersion="1" MinorVersion="0">
<Conditions NotBefore="2002-04-18T16:56:54Z" NotOnOrAfter="2002-04-18T17:01:54Z">
<AudienceRestrictionCondition>
<Audience>http://middleware.internet2.edu/shibboleth/clubs/clubshib/1.0/</Audience>
</AudienceRestrictionCondition>
</Conditions>
<AuthenticationStatement AuthenticationInstant="2002-04-18T16:56:53Z" AuthenticationMethod="urn:mace:shibboleth:authmethod">
<Subject>
<NameIdentifier Format="urn:mace:shibboleth:1.0:handle" NameQualifier="osu.edu">foo</NameIdentifier>
<SubjectConfirmation>
<ConfirmationMethod>urn:oasis:names:tc:SAML:1.0:cm:Bearer</ConfirmationMethod>
</SubjectConfirmation>
</Subject>
<SubjectLocality IPAddress="127.0.0.1"/>
<AuthorityBinding AuthorityKind="samlp:AttributeQuery" Binding="urn:oasis:names:tc:SAML:1.0:bindings:SOAP-binding" Location="https://aa.osu.edu/"/>
</AuthenticationStatement>
</Assertion>
</Response></pre>
<p></p>
</div>
</div>
<br clear="all"><div class="SECT2">
<h2 class="SECT2"><a name="XMLSEC-EXAMPLE-VERIFY4-RES">verify4-res.xml</a></h2>
<p></p>
<div class="INFORMALEXAMPLE">
<p></p>
<a name="AEN732"></a><pre class="PROGRAMLISTING"><?xml version="1.0" encoding="UTF-8"?>
<!--
XML Security Library example: A simple SAML response template (verify4 example).
This file was signed using the following command (replace __ with double dashes):
../apps/xmlsec sign __privkey rsakey.pem,rsacert.pem __output verify4-res.xml verify4-tmpl.xml
-->
<Response xmlns="urn:oasis:names:tc:SAML:1.0:protocol" xmlns:samlp="urn:oasis:names:tc:SAML:1.0:protocol" IssueInstant="2002-04-18T16:56:54Z" MajorVersion="1" MinorVersion="0" Recipient="https://shire.target.com" ResponseID="7ddc31-ed4a03d703-FB24AD27D96135B68C99FB9AACFE2FFC">
<dsig:Signature xmlns:dsig="http://www.w3.org/2000/09/xmldsig#">
<dsig:SignedInfo>
<dsig:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
<dsig:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
<dsig:Reference URI="">
<dsig:Transforms>
<dsig:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
</dsig:Transforms>
<dsig:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<dsig:DigestValue>t1nvDq1bZXEhBIXc/DHcqIrjRyI=</dsig:DigestValue>
</dsig:Reference>
</dsig:SignedInfo>
<dsig:SignatureValue>EsNm7mOj9XY6pq1bfeuzFd1F/LQwbc1K/YgOYgrElk4tr8BhSd5OcrzXBgsivPvm
HpjvSOBkjctGOFVE7x+6+G8TMudTja1IchEmGMh+pjMBlGNpvxSTedwtnoZBGWAz
RlfRhRFThskup0T7Or+VBHYygPGM3gmwX0ZWVYpNzM/rfYSk7+obgIp9DxLDIXlW
oLrJGVivubE+T63CPfBPaUIv1CbfBAzdo+11+8CiVsdWn2qwtGe5Fsmc3eCg06Oj
sl1nyCIu3AONq1w8jIPOgmITF8PpwDm0+XoQUH0P4kHJqNLphnJZY+GlPAC6VlAW
2bcAFr4Ul5yzHUBpxCDZfg==</dsig:SignatureValue>
<dsig:KeyInfo>
<dsig:X509Data>
<X509Certificate xmlns="http://www.w3.org/2000/09/xmldsig#">MIIE3zCCBEigAwIBAgIBBTANBgkqhkiG9w0BAQQFADCByzELMAkGA1UEBhMCVVMx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</X509Certificate>
</dsig:X509Data>
</dsig:KeyInfo>
</dsig:Signature>
<Status>
<StatusCode Value="samlp:Success"/>
</Status>
<Assertion xmlns="urn:oasis:names:tc:SAML:1.0:assertion" AssertionID="7ddc31-ed4a03d735-FB24AD27D96135B68C99FB9AACFE2FFC" IssueInstant="2002-04-18T16:56:54Z" Issuer="hs.osu.edu" MajorVersion="1" MinorVersion="0">
<Conditions NotBefore="2002-04-18T16:56:54Z" NotOnOrAfter="2002-04-18T17:01:54Z">
<AudienceRestrictionCondition>
<Audience>http://middleware.internet2.edu/shibboleth/clubs/clubshib/1.0/</Audience>
</AudienceRestrictionCondition>
</Conditions>
<AuthenticationStatement AuthenticationInstant="2002-04-18T16:56:53Z" AuthenticationMethod="urn:mace:shibboleth:authmethod">
<Subject>
<NameIdentifier Format="urn:mace:shibboleth:1.0:handle" NameQualifier="osu.edu">foo</NameIdentifier>
<SubjectConfirmation>
<ConfirmationMethod>urn:oasis:names:tc:SAML:1.0:cm:Bearer</ConfirmationMethod>
</SubjectConfirmation>
</Subject>
<SubjectLocality IPAddress="127.0.0.1"/>
<AuthorityBinding AuthorityKind="samlp:AttributeQuery" Binding="urn:oasis:names:tc:SAML:1.0:bindings:SOAP-binding" Location="https://aa.osu.edu/"/>
</AuthenticationStatement>
</Assertion>
</Response></pre>
<p></p>
</div>
</div>
<br clear="all"><div class="SECT2">
<h2 class="SECT2"><a name="XMLSEC-EXAMPLE-VERIFY4-BAD-TMPL">verify4-bad-tmpl.xml</a></h2>
<p></p>
<div class="INFORMALEXAMPLE">
<p></p>
<a name="AEN737"></a><pre class="PROGRAMLISTING"><?xml version="1.0" encoding="UTF-8"?>
<!--
XML Security Library example: A simple bad SAML response template (verify4 example).
Sign it using the following command (replace __ with double dashes):
../apps/xmlsec sign __privkey rsakey.pem,rsacert.pem __output verify4--bad-res.xml verify4-bad-tmpl.xml
-->
<Response xmlns="urn:oasis:names:tc:SAML:1.0:protocol" xmlns:samlp="urn:oasis:names:tc:SAML:1.0:protocol" IssueInstant="2002-04-18T16:56:54Z" MajorVersion="1" MinorVersion="0" Recipient="https://shire.target.com" ResponseID="7ddc31-ed4a03d703-FB24AD27D96135B68C99FB9AACFE2FFC">
<dsig:Signature xmlns:dsig="http://www.w3.org/2000/09/xmldsig#">
<dsig:SignedInfo>
<dsig:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
<dsig:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
<dsig:Reference URI="">
<dsig:Transforms>
<dsig:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
<dsig:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
<dsig:XPath xmlns:samlp_xpath="urn:oasis:names:tc:SAML:1.0:protocol" >
count(ancestor-or-self::samlp_xpath:Response |
here()/ancestor::samlp_xpath:Response[1]) =
count(ancestor-or-self::samlp_xpath:Response)
</dsig:XPath>
</dsig:Transform>
</dsig:Transforms>
<dsig:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<dsig:DigestValue/>
</dsig:Reference>
</dsig:SignedInfo>
<dsig:SignatureValue/>
<dsig:KeyInfo>
<dsig:X509Data/>
</dsig:KeyInfo>
</dsig:Signature>
<Status>
<StatusCode Value="samlp:Success"/>
</Status>
<Assertion xmlns="urn:oasis:names:tc:SAML:1.0:assertion" AssertionID="7ddc31-ed4a03d735-FB24AD27D96135B68C99FB9AACFE2FFC" IssueInstant="2002-04-18T16:56:54Z" Issuer="hs.osu.edu" MajorVersion="1" MinorVersion="0">
<Conditions NotBefore="2002-04-18T16:56:54Z" NotOnOrAfter="2002-04-18T17:01:54Z">
<AudienceRestrictionCondition>
<Audience>http://middleware.internet2.edu/shibboleth/clubs/clubshib/1.0/</Audience>
</AudienceRestrictionCondition>
</Conditions>
<AuthenticationStatement AuthenticationInstant="2002-04-18T16:56:53Z" AuthenticationMethod="urn:mace:shibboleth:authmethod">
<Subject>
<NameIdentifier Format="urn:mace:shibboleth:1.0:handle" NameQualifier="osu.edu">foo</NameIdentifier>
<SubjectConfirmation>
<ConfirmationMethod>urn:oasis:names:tc:SAML:1.0:cm:Bearer</ConfirmationMethod>
</SubjectConfirmation>
</Subject>
<SubjectLocality IPAddress="127.0.0.1"/>
<AuthorityBinding AuthorityKind="samlp:AttributeQuery" Binding="urn:oasis:names:tc:SAML:1.0:bindings:SOAP-binding" Location="https://aa.osu.edu/"/>
</AuthenticationStatement>
</Assertion>
</Response></pre>
<p></p>
</div>
</div>
<br clear="all"><div class="SECT2">
<h2 class="SECT2"><a name="XMLSEC-EXAMPLE-VERIFY4-BAD-RES">verify4-bad-res.xml</a></h2>
<p></p>
<div class="INFORMALEXAMPLE">
<p></p>
<a name="AEN742"></a><pre class="PROGRAMLISTING"><?xml version="1.0" encoding="UTF-8"?>
<!--
XML Security Library example: A simple bad SAML response (verify4 example).
This file could be verified with verify3 example (signature is valid)
but verify4 example fails because of XPath transform which is not allowed
in a simple SAML response.
This file was created from a template with the following command (replace __ with double dashes):
../apps/xmlsec sign __privkey rsakey.pem,rsacert.pem __output verify4-bad-res.xml verify4-bad-tmpl.xml
-->
<Response xmlns="urn:oasis:names:tc:SAML:1.0:protocol" xmlns:samlp="urn:oasis:names:tc:SAML:1.0:protocol" IssueInstant="2002-04-18T16:56:54Z" MajorVersion="1" MinorVersion="0" Recipient="https://shire.target.com" ResponseID="7ddc31-ed4a03d703-FB24AD27D96135B68C99FB9AACFE2FFC">
<dsig:Signature xmlns:dsig="http://www.w3.org/2000/09/xmldsig#">
<dsig:SignedInfo>
<dsig:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
<dsig:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
<dsig:Reference URI="">
<dsig:Transforms>
<dsig:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
<dsig:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
<dsig:XPath xmlns:samlp_xpath="urn:oasis:names:tc:SAML:1.0:protocol">
count(ancestor-or-self::samlp_xpath:Response |
here()/ancestor::samlp_xpath:Response[1]) =
count(ancestor-or-self::samlp_xpath:Response)
</dsig:XPath>
</dsig:Transform>
</dsig:Transforms>
<dsig:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
<dsig:DigestValue>t1nvDq1bZXEhBIXc/DHcqIrjRyI=</dsig:DigestValue>
</dsig:Reference>
</dsig:SignedInfo>
<dsig:SignatureValue>PipZFFmmYcSnSU9p5AcOmFbRYoeatERYPy4IRk+jU26xk9sAM6yfhXtbK8csl/0w
rjODj1jGcydBGP9I8kFAfHyZ+Ls+A+53oMNl+tGWfe8iICMowIU1HCxJtPrgbTKk
1gc+VnYJ3IXhoVneeQKqzilXwA5X7FW7hgIecb5KwLShYV3iO8+z8pzt3NEGKAGQ
p/lQmO3EQR4Zu0bCSOk6zXdlOhe5dPVFXJQLlE8Zz3WjGQNo0l4op0ZXKf1B+syH
blHx0tnPQDtSBzQdKohJV39UgkGnL3rd5ggBzyXemjMTX8eFxNZ7bh4UgZ+Wo74W
Zb4ompTc2ImxJfbpszWp8w==</dsig:SignatureValue>
<dsig:KeyInfo>
<dsig:X509Data>
<X509Certificate xmlns="http://www.w3.org/2000/09/xmldsig#">MIIE3zCCBEigAwIBAgIBBTANBgkqhkiG9w0BAQQFADCByzELMAkGA1UEBhMCVVMx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</X509Certificate>
</dsig:X509Data>
</dsig:KeyInfo>
</dsig:Signature>
<Status>
<StatusCode Value="samlp:Success"/>
</Status>
<Assertion xmlns="urn:oasis:names:tc:SAML:1.0:assertion" AssertionID="7ddc31-ed4a03d735-FB24AD27D96135B68C99FB9AACFE2FFC" IssueInstant="2002-04-18T16:56:54Z" Issuer="hs.osu.edu" MajorVersion="1" MinorVersion="0">
<Conditions NotBefore="2002-04-18T16:56:54Z" NotOnOrAfter="2002-04-18T17:01:54Z">
<AudienceRestrictionCondition>
<Audience>http://middleware.internet2.edu/shibboleth/clubs/clubshib/1.0/</Audience>
</AudienceRestrictionCondition>
</Conditions>
<AuthenticationStatement AuthenticationInstant="2002-04-18T16:56:53Z" AuthenticationMethod="urn:mace:shibboleth:authmethod">
<Subject>
<NameIdentifier Format="urn:mace:shibboleth:1.0:handle" NameQualifier="osu.edu">foo</NameIdentifier>
<SubjectConfirmation>
<ConfirmationMethod>urn:oasis:names:tc:SAML:1.0:cm:Bearer</ConfirmationMethod>
</SubjectConfirmation>
</Subject>
<SubjectLocality IPAddress="127.0.0.1"/>
<AuthorityBinding AuthorityKind="samlp:AttributeQuery" Binding="urn:oasis:names:tc:SAML:1.0:bindings:SOAP-binding" Location="https://aa.osu.edu/"/>
</AuthenticationStatement>
</Assertion>
</Response></pre>
<p></p>
</div>
</div>
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