Convert from NULL macro to nullptr.
[shibboleth/cpp-xmltooling.git] / xmltooling / security / impl / AbstractPKIXTrustEngine.cpp
index 95964de..0798115 100644 (file)
@@ -1,5 +1,5 @@
 /*
- *  Copyright 2006 Internet2
+ *  Copyright 2001-2010 Internet2
  * 
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  */
 
 #include "internal.h"
+#include "logging.h"
 #include "security/AbstractPKIXTrustEngine.h"
 #include "signature/KeyInfo.h"
+#include "signature/Signature.h"
 
-#include <log4cpp/Category.hh>
 #include <openssl/x509_vfy.h>
 #include <openssl/x509v3.h>
+#include <xmltooling/security/CredentialCriteria.h>
+#include <xmltooling/security/CredentialResolver.h>
+#include <xmltooling/security/KeyInfoResolver.h>
 #include <xmltooling/security/OpenSSLCryptoX509CRL.h>
+#include <xmltooling/security/X509Credential.h>
 #include <xmltooling/signature/SignatureValidator.h>
 #include <xmltooling/util/NDC.h>
+#include <xercesc/util/XMLUniDefs.hpp>
 #include <xsec/enc/OpenSSL/OpenSSLCryptoX509.hpp>
 
 using namespace xmlsignature;
+using namespace xmltooling::logging;
 using namespace xmltooling;
-using namespace log4cpp;
 using namespace std;
 
-AbstractPKIXTrustEngine::AbstractPKIXTrustEngine(const DOMElement* e) : OpenSSLTrustEngine(e), m_inlineResolver(NULL)
-{
-    m_inlineResolver = XMLToolingConfig::getConfig().KeyResolverManager.newPlugin(INLINE_KEY_RESOLVER,NULL);
-}
-
-AbstractPKIXTrustEngine::~AbstractPKIXTrustEngine()
-{
-    delete m_inlineResolver;
-}
 
 namespace {
     static int XMLTOOL_DLLLOCAL error_callback(int ok, X509_STORE_CTX* ctx)
@@ -57,13 +54,17 @@ namespace {
     }
 
     static bool XMLTOOL_DLLLOCAL validate(
-        X509* EE, STACK_OF(X509)* untrusted, AbstractPKIXTrustEngine::PKIXValidationInfoIterator* pkixInfo
+        X509* EE,
+        STACK_OF(X509)* untrusted,
+        AbstractPKIXTrustEngine::PKIXValidationInfoIterator* pkixInfo,
+        bool fullCRLChain,
+        const vector<XSECCryptoX509CRL*>* inlineCRLs=nullptr
         )
     {
         Category& log=Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine");
     
         // First we build a stack of CA certs. These objects are all referenced in place.
-        log.debug("building CA list from PKIX Validation information");
+        log.debug("supplying PKIX Validation information");
     
         // We need this for CRL support.
         X509_STORE* store=X509_STORE_new();
@@ -71,35 +72,53 @@ namespace {
             log_openssl();
             return false;
         }
-    #if (OPENSSL_VERSION_NUMBER >= 0x00907000L)
-        X509_STORE_set_flags(store,X509_V_FLAG_CRL_CHECK_ALL);
-    #endif
     
         STACK_OF(X509)* CAstack = sk_X509_new_null();
         
         // This contains the state of the validate operation.
+        int count=0;
         X509_STORE_CTX ctx;
         
         const vector<XSECCryptoX509*>& CAcerts = pkixInfo->getTrustAnchors();
         for (vector<XSECCryptoX509*>::const_iterator i=CAcerts.begin(); i!=CAcerts.end(); ++i) {
             if ((*i)->getProviderName()==DSIGConstants::s_unicodeStrPROVOpenSSL) {
                 sk_X509_push(CAstack,static_cast<OpenSSLCryptoX509*>(*i)->getOpenSSLX509());
+                ++count;
             }
         }
 
+        log.debug("supplied (%d) CA certificate(s)", count);
+
+#if (OPENSSL_VERSION_NUMBER >= 0x00907000L)
+        count=0;
+        if (inlineCRLs) {
+            for (vector<XSECCryptoX509CRL*>::const_iterator j=inlineCRLs->begin(); j!=inlineCRLs->end(); ++j) {
+                if ((*j)->getProviderName()==DSIGConstants::s_unicodeStrPROVOpenSSL) {
+                    // owned by store
+                    X509_STORE_add_crl(store, X509_CRL_dup(static_cast<OpenSSLCryptoX509CRL*>(*j)->getOpenSSLX509CRL()));
+                    ++count;
+                }
+            }
+        }
         const vector<XSECCryptoX509CRL*>& crls = pkixInfo->getCRLs();
         for (vector<XSECCryptoX509CRL*>::const_iterator j=crls.begin(); j!=crls.end(); ++j) {
             if ((*j)->getProviderName()==DSIGConstants::s_unicodeStrPROVOpenSSL) {
                 // owned by store
-                X509_STORE_add_crl(
-                    store,
-                    X509_CRL_dup(static_cast<OpenSSLCryptoX509CRL*>(*j)->getOpenSSLX509CRL())
-                    );
+                X509_STORE_add_crl(store, X509_CRL_dup(static_cast<OpenSSLCryptoX509CRL*>(*j)->getOpenSSLX509CRL()));
+                ++count;
             }
         }
-     
+        log.debug("supplied (%d) CRL(s)", count);
+        if (count > 0)
+            X509_STORE_set_flags(store, fullCRLChain ? (X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL) : (X509_V_FLAG_CRL_CHECK));
+#else
+        if ((inlineCRLs && !inlineCRLs->empty()) || !pkixInfo->getCRLs().empty()) {
+            log.warn("OpenSSL versions < 0.9.7 do not support CRL checking");
+        }
+#endif
+
         // AFAICT, EE and untrusted are passed in but not owned by the ctx.
-    #if (OPENSSL_VERSION_NUMBER >= 0x00907000L)
+#if (OPENSSL_VERSION_NUMBER >= 0x00907000L)
         if (X509_STORE_CTX_init(&ctx,store,EE,untrusted)!=1) {
             log_openssl();
             log.error("unable to initialize X509_STORE_CTX");
@@ -107,9 +126,9 @@ namespace {
             X509_STORE_free(store);
             return false;
         }
-    #else
+#else
         X509_STORE_CTX_init(&ctx,store,EE,untrusted);
-    #endif
+#endif
     
         // Seems to be most efficient to just pass in the CA stack.
         X509_STORE_CTX_trusted_stack(&ctx,CAstack);
@@ -136,7 +155,7 @@ namespace {
         sk_X509_free(CAstack);
     
         if (ret==1) {
-            log.info("successfully validated certificate chain");
+            log.debug("successfully validated certificate chain");
             return true;
         }
         
@@ -144,65 +163,74 @@ namespace {
     }
 };
 
-bool AbstractPKIXTrustEngine::checkEntityNames(X509* certEE, const KeyInfoSource& keyInfoSource) const
+AbstractPKIXTrustEngine::PKIXValidationInfoIterator::PKIXValidationInfoIterator()
 {
-    Category& log=Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine");
-    
-    // Build a list of acceptable names. Transcode the possible key "names" to UTF-8.
-    // For some simple cases, this should handle UTF-8 encoded DNs in certificates.
-    vector<string> keynames;
-    auto_ptr<KeyInfoIterator> keyInfoIter(keyInfoSource.getKeyInfoIterator());
-    while (keyInfoIter->hasNext()) {
-        const KeyInfo* keyInfo = keyInfoIter->next();
-        const vector<KeyName*>& knames=keyInfo->getKeyNames();
-        for (vector<KeyName*>::const_iterator kn_i=knames.begin(); kn_i!=knames.end(); ++kn_i) {
-            const XMLCh* n=(*kn_i)->getName();
-            if (n && *n) {
-                char* kn=toUTF8(n);
-                keynames.push_back(kn);
-                delete[] kn;
-            }
-        }
-    }
+}
+
+AbstractPKIXTrustEngine::PKIXValidationInfoIterator::~PKIXValidationInfoIterator()
+{
+}
+
+AbstractPKIXTrustEngine::AbstractPKIXTrustEngine(const xercesc::DOMElement* e) : TrustEngine(e), m_fullCRLChain(false)
+{
+    static XMLCh fullCRLChain[] = UNICODE_LITERAL_12(f,u,l,l,C,R,L,C,h,a,i,n);
+    const XMLCh* flag = e ? e->getAttributeNS(nullptr, fullCRLChain) : nullptr;
+    m_fullCRLChain = (flag && (*flag == xercesc::chLatin_t || *flag == xercesc::chDigit_1));
+}
+
+AbstractPKIXTrustEngine::~AbstractPKIXTrustEngine()
+{
+}
+
+bool AbstractPKIXTrustEngine::checkEntityNames(
+    X509* certEE, const CredentialResolver& credResolver, const CredentialCriteria& criteria
+    ) const
+{
+    Category& log=Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine.PKIX");
+
+    // We resolve to a set of trusted credentials.
+    vector<const Credential*> creds;
+    credResolver.resolve(creds,&criteria);
+
+    // Build a list of acceptable names.
+    set<string> trustednames;
+    trustednames.insert(criteria.getPeerName());
+    for (vector<const Credential*>::const_iterator cred = creds.begin(); cred!=creds.end(); ++cred)
+        trustednames.insert((*cred)->getKeyNames().begin(), (*cred)->getKeyNames().end());
 
-    string peername = keyInfoSource.getName();
-    if (!peername.empty())
-        keynames.push_back(peername);
-    
-    char buf[256];
     X509_NAME* subject=X509_get_subject_name(certEE);
     if (subject) {
         // One way is a direct match to the subject DN.
         // Seems that the way to do the compare is to write the X509_NAME into a BIO.
         BIO* b = BIO_new(BIO_s_mem());
         BIO* b2 = BIO_new(BIO_s_mem());
-        BIO_set_mem_eof_return(b, 0);
-        BIO_set_mem_eof_return(b2, 0);
         // The flags give us LDAP order instead of X.500, with a comma separator.
-        int len=X509_NAME_print_ex(b,subject,0,XN_FLAG_RFC2253);
-        string subjectstr,subjectstr2;
+        X509_NAME_print_ex(b,subject,0,XN_FLAG_RFC2253);
         BIO_flush(b);
-        while ((len = BIO_read(b, buf, 255)) > 0) {
-            buf[len] = '\0';
-            subjectstr+=buf;
-        }
-        log.infoStream() << "certificate subject: " << subjectstr << CategoryStream::ENDLINE;
         // The flags give us LDAP order instead of X.500, with a comma plus space separator.
-        len=X509_NAME_print_ex(b2,subject,0,XN_FLAG_RFC2253 + XN_FLAG_SEP_CPLUS_SPC - XN_FLAG_SEP_COMMA_PLUS);
+        X509_NAME_print_ex(b2,subject,0,XN_FLAG_RFC2253 + XN_FLAG_SEP_CPLUS_SPC - XN_FLAG_SEP_COMMA_PLUS);
         BIO_flush(b2);
-        while ((len = BIO_read(b2, buf, 255)) > 0) {
-            buf[len] = '\0';
-            subjectstr2+=buf;
+
+        BUF_MEM* bptr=nullptr;
+        BUF_MEM* bptr2=nullptr;
+        BIO_get_mem_ptr(b, &bptr);
+        BIO_get_mem_ptr(b2, &bptr2);
+
+        if (bptr && bptr->length > 0 && log.isDebugEnabled()) {
+            string subjectstr(bptr->data, bptr->length);
+            log.debug("certificate subject: %s", subjectstr.c_str());
         }
         
         // Check each keyname.
-        for (vector<string>::const_iterator n=keynames.begin(); n!=keynames.end(); n++) {
+        for (set<string>::const_iterator n=trustednames.begin(); bptr && bptr2 && n!=trustednames.end(); n++) {
 #ifdef HAVE_STRCASECMP
-            if (!strcasecmp(n->c_str(),subjectstr.c_str()) || !strcasecmp(n->c_str(),subjectstr2.c_str())) {
+            if ((n->length() == bptr->length && !strncasecmp(n->c_str(), bptr->data, bptr->length)) ||
+                (n->length() == bptr2->length && !strncasecmp(n->c_str(), bptr2->data, bptr2->length))) {
 #else
-            if (!stricmp(n->c_str(),subjectstr.c_str()) || !stricmp(n->c_str(),subjectstr2.c_str())) {
+            if ((n->length() == bptr->length && !strnicmp(n->c_str(), bptr->data, bptr->length)) ||
+                (n->length() == bptr2->length && !strnicmp(n->c_str(), bptr2->data, bptr2->length))) {
 #endif
-                log.info("matched full subject DN to a key name (%s)", n->c_str());
+                log.debug("matched full subject DN to a key name (%s)", n->c_str());
                 BIO_free(b);
                 BIO_free(b2);
                 return true;
@@ -212,7 +240,7 @@ bool AbstractPKIXTrustEngine::checkEntityNames(X509* certEE, const KeyInfoSource
         BIO_free(b2);
 
         log.debug("unable to match DN, trying TLS subjectAltName match");
-        STACK_OF(GENERAL_NAME)* altnames=(STACK_OF(GENERAL_NAME)*)X509_get_ext_d2i(certEE, NID_subject_alt_name, NULL, NULL);
+        STACK_OF(GENERAL_NAME)* altnames=(STACK_OF(GENERAL_NAME)*)X509_get_ext_d2i(certEE, NID_subject_alt_name, nullptr, nullptr);
         if (altnames) {
             int numalts = sk_GENERAL_NAME_num(altnames);
             for (int an=0; an<numalts; an++) {
@@ -220,15 +248,14 @@ bool AbstractPKIXTrustEngine::checkEntityNames(X509* certEE, const KeyInfoSource
                 if (check->type==GEN_DNS || check->type==GEN_URI) {
                     const char* altptr = (char*)ASN1_STRING_data(check->d.ia5);
                     const int altlen = ASN1_STRING_length(check->d.ia5);
-                    
-                    for (vector<string>::const_iterator n=keynames.begin(); n!=keynames.end(); n++) {
+                    for (set<string>::const_iterator n=trustednames.begin(); n!=trustednames.end(); n++) {
 #ifdef HAVE_STRCASECMP
-                        if ((check->type==GEN_DNS && !strncasecmp(altptr,n->c_str(),altlen))
+                        if ((check->type==GEN_DNS && n->length()==altlen && !strncasecmp(altptr,n->c_str(),altlen))
 #else
-                        if ((check->type==GEN_DNS && !strnicmp(altptr,n->c_str(),altlen))
+                        if ((check->type==GEN_DNS && n->length()==altlen && !strnicmp(altptr,n->c_str(),altlen))
 #endif
-                                || (check->type==GEN_URI && !strncmp(altptr,n->c_str(),altlen))) {
-                            log.info("matched DNS/URI subjectAltName to a key name (%s)", n->c_str());
+                                || (check->type==GEN_URI && n->length()==altlen && !strncmp(altptr,n->c_str(),altlen))) {
+                            log.debug("matched DNS/URI subjectAltName to a key name (%s)", n->c_str());
                             GENERAL_NAMES_free(altnames);
                             return true;
                         }
@@ -239,49 +266,79 @@ bool AbstractPKIXTrustEngine::checkEntityNames(X509* certEE, const KeyInfoSource
         GENERAL_NAMES_free(altnames);
             
         log.debug("unable to match subjectAltName, trying TLS CN match");
-        memset(buf,0,sizeof(buf));
-        if (X509_NAME_get_text_by_NID(subject,NID_commonName,buf,255)>0) {
-            for (vector<string>::const_iterator n=keynames.begin(); n!=keynames.end(); n++) {
+
+        // Fetch the last CN RDN.
+        char* peer_CN = nullptr;
+        int j,i = -1;
+        while ((j=X509_NAME_get_index_by_NID(subject, NID_commonName, i)) >= 0)
+            i = j;
+        if (i >= 0) {
+            ASN1_STRING* tmp = X509_NAME_ENTRY_get_data(X509_NAME_get_entry(subject, i));
+            // Copied in from libcurl.
+            /* In OpenSSL 0.9.7d and earlier, ASN1_STRING_to_UTF8 fails if the input
+               is already UTF-8 encoded. We check for this case and copy the raw
+               string manually to avoid the problem. */
+            if(tmp && ASN1_STRING_type(tmp) == V_ASN1_UTF8STRING) {
+                j = ASN1_STRING_length(tmp);
+                if(j >= 0) {
+                    peer_CN = (char*)OPENSSL_malloc(j + 1);
+                    memcpy(peer_CN, ASN1_STRING_data(tmp), j);
+                    peer_CN[j] = '\0';
+                }
+            }
+            else /* not a UTF8 name */ {
+                j = ASN1_STRING_to_UTF8(reinterpret_cast<unsigned char**>(&peer_CN), tmp);
+            }
+
+            for (set<string>::const_iterator n=trustednames.begin(); n!=trustednames.end(); n++) {
 #ifdef HAVE_STRCASECMP
-                if (!strcasecmp(buf,n->c_str())) {
+                if (n->length() == j && !strncasecmp(peer_CN, n->c_str(), j)) {
 #else
-                if (!stricmp(buf,n->c_str())) {
+                if (n->length() == j && !strnicmp(peer_CN, n->c_str(), j)) {
 #endif
-                    log.info("matched subject CN to a key name (%s)", n->c_str());
+                    log.debug("matched subject CN to a key name (%s)", n->c_str());
+                    if(peer_CN)
+                        OPENSSL_free(peer_CN);
                     return true;
                 }
             }
+            if(peer_CN)
+                OPENSSL_free(peer_CN);
         }
-        else
+        else {
             log.warn("no common name in certificate subject");
+        }
     }
-    else
+    else {
         log.error("certificate has no subject?!");
+    }
     
     return false;
 }
 
-bool AbstractPKIXTrustEngine::validate(
+bool AbstractPKIXTrustEngine::validateWithCRLs(
     X509* certEE,
     STACK_OF(X509)* certChain,
-    const KeyInfoSource& keyInfoSource,
-    bool checkName,
-    const KeyResolver* keyResolver
+    const CredentialResolver& credResolver,
+    CredentialCriteria* criteria,
+    const std::vector<XSECCryptoX509CRL*>* inlineCRLs
     ) const
 {
 #ifdef _DEBUG
-    NDC ndc("validate");
+    NDC ndc("validateWithCRLs");
 #endif
-    Category& log=Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine");
+    Category& log=Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine.PKIX");
 
     if (!certEE) {
         log.error("X.509 credential was NULL, unable to perform validation");
         return false;
     }
 
-    if (checkName) {
+    if (criteria && criteria->getPeerName() && *(criteria->getPeerName())) {
         log.debug("checking that the certificate name is acceptable");
-        if (!checkEntityNames(certEE,keyInfoSource)) {
+        if (criteria->getUsage()==Credential::UNSPECIFIED_CREDENTIAL)
+            criteria->setUsage(Credential::SIGNING_CREDENTIAL);
+        if (!checkEntityNames(certEE,credResolver,*criteria)) {
             log.error("certificate name was not acceptable");
             return false;
         }
@@ -289,66 +346,83 @@ bool AbstractPKIXTrustEngine::validate(
     
     log.debug("performing certificate path validation...");
 
-    auto_ptr<PKIXValidationInfoIterator> pkix(
-        getPKIXValidationInfoIterator(keyInfoSource, *(keyResolver ? keyResolver : m_inlineResolver))
-        );
+    auto_ptr<PKIXValidationInfoIterator> pkix(getPKIXValidationInfoIterator(credResolver, criteria));
     while (pkix->next()) {
-        if (::validate(certEE,certChain,pkix.get())) {
+        if (::validate(certEE,certChain,pkix.get(),m_fullCRLChain,inlineCRLs)) {
             return true;
         }
     }
 
-    log.error("failed to validate certificate chain using supplied PKIX information");
+    log.debug("failed to validate certificate chain using supplied PKIX information");
     return false;
 }
 
 bool AbstractPKIXTrustEngine::validate(
+    X509* certEE,
+    STACK_OF(X509)* certChain,
+    const CredentialResolver& credResolver,
+    CredentialCriteria* criteria
+    ) const
+{
+    return validateWithCRLs(certEE,certChain,credResolver,criteria);
+}
+
+bool AbstractPKIXTrustEngine::validate(
     XSECCryptoX509* certEE,
     const vector<XSECCryptoX509*>& certChain,
-    const KeyInfoSource& keyInfoSource,
-    bool checkName,
-    const KeyResolver* keyResolver
+    const CredentialResolver& credResolver,
+    CredentialCriteria* criteria
     ) const
 {
-    if (!certEE) {
 #ifdef _DEBUG
         NDC ndc("validate");
 #endif
-        Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine").error("X.509 credential was NULL, unable to perform validation");
+    if (!certEE) {
+        Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine.PKIX").error("X.509 credential was NULL, unable to perform validation");
         return false;
     }
     else if (certEE->getProviderName()!=DSIGConstants::s_unicodeStrPROVOpenSSL) {
-#ifdef _DEBUG
-        NDC ndc("validate");
-#endif
-        Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine").error("only the OpenSSL XSEC provider is supported");
+        Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine.PKIX").error("only the OpenSSL XSEC provider is supported");
         return false;
     }
 
     STACK_OF(X509)* untrusted=sk_X509_new_null();
-    for (vector<XSECCryptoX509*>::const_iterator i=certChain.begin(); i!=certChain.end(); ++i) {
+    for (vector<XSECCryptoX509*>::const_iterator i=certChain.begin(); i!=certChain.end(); ++i)
         sk_X509_push(untrusted,static_cast<OpenSSLCryptoX509*>(*i)->getOpenSSLX509());
-    }
 
-    bool ret = validate(static_cast<OpenSSLCryptoX509*>(certEE)->getOpenSSLX509(),untrusted,keyInfoSource,checkName,keyResolver);
+    bool ret = validate(static_cast<OpenSSLCryptoX509*>(certEE)->getOpenSSLX509(), untrusted, credResolver, criteria);
     sk_X509_free(untrusted);
     return ret;
 }
 
 bool AbstractPKIXTrustEngine::validate(
     Signature& sig,
-    const KeyInfoSource& keyInfoSource,
-    const KeyResolver* keyResolver
+    const CredentialResolver& credResolver,
+    CredentialCriteria* criteria
     ) const
 {
 #ifdef _DEBUG
     NDC ndc("validate");
 #endif
-    Category& log=Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine");
+    Category& log=Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine.PKIX");
+
+    const KeyInfoResolver* inlineResolver = m_keyInfoResolver;
+    if (!inlineResolver)
+        inlineResolver = XMLToolingConfig::getConfig().getKeyInfoResolver();
+    if (!inlineResolver) {
+        log.error("unable to perform PKIX validation, no KeyInfoResolver available");
+        return false;
+    }
 
-    // Pull the certificate chain out of the signature using an inline KeyResolver.
-    KeyResolver::ResolvedCertificates certs;
-    if (0==m_inlineResolver->resolveCertificates(&sig, certs)) {
+    // Pull the certificate chain out of the signature.
+    X509Credential* x509cred;
+    auto_ptr<Credential> cred(inlineResolver->resolve(&sig,X509Credential::RESOLVE_CERTS|X509Credential::RESOLVE_CRLS));
+    if (!cred.get() || !(x509cred=dynamic_cast<X509Credential*>(cred.get()))) {
+        log.error("unable to perform PKIX validation, signature does not contain any certificates");
+        return false;
+    }
+    const vector<XSECCryptoX509*>& certs = x509cred->getEntityCertificateChain();
+    if (certs.empty()) {
         log.error("unable to perform PKIX validation, signature does not contain any certificates");
         return false;
     }
@@ -357,25 +431,37 @@ bool AbstractPKIXTrustEngine::validate(
 
     // Find and save off a pointer to the certificate that unlocks the object.
     // Most of the time, this will be the first one anyway.
-    XSECCryptoX509* certEE=NULL;
+    XSECCryptoX509* certEE=nullptr;
     SignatureValidator keyValidator;
-    for (vector<XSECCryptoX509*>::const_iterator i=certs.v().begin(); !certEE && i!=certs.v().end(); ++i) {
+    for (vector<XSECCryptoX509*>::const_iterator i=certs.begin(); !certEE && i!=certs.end(); ++i) {
         try {
-            keyValidator.setKey((*i)->clonePublicKey());
+            auto_ptr<XSECCryptoKey> key((*i)->clonePublicKey());
+            keyValidator.setKey(key.get());
             keyValidator.validate(&sig);
-            log.info("signature verified with key inside signature, attempting certificate validation...");
+            log.debug("signature verified with key inside signature, attempting certificate validation...");
             certEE=(*i);
         }
-        catch (ValidationException&) {
-            // trap failures
+        catch (ValidationException& ex) {
+            log.debug(ex.what());
         }
     }
     
-    if (certEE)
-        return validate(certEE,certs.v(),keyInfoSource,true,keyResolver);
-        
-    log.error("failed to verify signature with embedded certificates");
-    return false;
+    if (!certEE) {
+        log.debug("failed to verify signature with embedded certificates");
+        return false;
+    }
+    else if (certEE->getProviderName()!=DSIGConstants::s_unicodeStrPROVOpenSSL) {
+        log.error("only the OpenSSL XSEC provider is supported");
+        return false;
+    }
+
+    STACK_OF(X509)* untrusted=sk_X509_new_null();
+    for (vector<XSECCryptoX509*>::const_iterator i=certs.begin(); i!=certs.end(); ++i)
+        sk_X509_push(untrusted,static_cast<OpenSSLCryptoX509*>(*i)->getOpenSSLX509());
+    const vector<XSECCryptoX509CRL*>& crls = x509cred->getCRLs();
+    bool ret = validateWithCRLs(static_cast<OpenSSLCryptoX509*>(certEE)->getOpenSSLX509(), untrusted, credResolver, criteria, &crls);
+    sk_X509_free(untrusted);
+    return ret;
 }
 
 bool AbstractPKIXTrustEngine::validate(
@@ -384,18 +470,37 @@ bool AbstractPKIXTrustEngine::validate(
     KeyInfo* keyInfo,
     const char* in,
     unsigned int in_len,
-    const KeyInfoSource& keyInfoSource,
-    const KeyResolver* keyResolver
+    const CredentialResolver& credResolver,
+    CredentialCriteria* criteria
     ) const
 {
 #ifdef _DEBUG
     NDC ndc("validate");
 #endif
-    Category& log=Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine");
+    Category& log=Category::getInstance(XMLTOOLING_LOGCAT".TrustEngine.PKIX");
+
+    if (!keyInfo) {
+        log.error("unable to perform PKIX validation, KeyInfo not present");
+        return false;
+    }
 
-    // Pull the certificate chain out of the KeyInfo using an inline KeyResolver.
-    KeyResolver::ResolvedCertificates certs;
-    if (!keyInfo || 0==m_inlineResolver->resolveCertificates(keyInfo, certs)) {
+    const KeyInfoResolver* inlineResolver = m_keyInfoResolver;
+    if (!inlineResolver)
+        inlineResolver = XMLToolingConfig::getConfig().getKeyInfoResolver();
+    if (!inlineResolver) {
+        log.error("unable to perform PKIX validation, no KeyInfoResolver available");
+        return false;
+    }
+
+    // Pull the certificate chain out of the signature.
+    X509Credential* x509cred;
+    auto_ptr<Credential> cred(inlineResolver->resolve(keyInfo,X509Credential::RESOLVE_CERTS));
+    if (!cred.get() || !(x509cred=dynamic_cast<X509Credential*>(cred.get()))) {
+        log.error("unable to perform PKIX validation, KeyInfo does not contain any certificates");
+        return false;
+    }
+    const vector<XSECCryptoX509*>& certs = x509cred->getEntityCertificateChain();
+    if (certs.empty()) {
         log.error("unable to perform PKIX validation, KeyInfo does not contain any certificates");
         return false;
     }
@@ -404,24 +509,23 @@ bool AbstractPKIXTrustEngine::validate(
 
     // Find and save off a pointer to the certificate that unlocks the object.
     // Most of the time, this will be the first one anyway.
-    XSECCryptoX509* certEE=NULL;
-    SignatureValidator keyValidator;
-    for (vector<XSECCryptoX509*>::const_iterator i=certs.v().begin(); !certEE && i!=certs.v().end(); ++i) {
+    XSECCryptoX509* certEE=nullptr;
+    for (vector<XSECCryptoX509*>::const_iterator i=certs.begin(); !certEE && i!=certs.end(); ++i) {
         try {
             auto_ptr<XSECCryptoKey> key((*i)->clonePublicKey());
             if (Signature::verifyRawSignature(key.get(), sigAlgorithm, sig, in, in_len)) {
-                log.info("signature verified with key inside signature, attempting certificate validation...");
+                log.debug("signature verified with key inside signature, attempting certificate validation...");
                 certEE=(*i);
             }
         }
-        catch (SignatureException&) {
-            // trap failures
+        catch (SignatureException& ex) {
+            log.debug(ex.what());
         }
     }
     
     if (certEE)
-        return validate(certEE,certs.v(),keyInfoSource,true,keyResolver);
+        return validate(certEE,certs,credResolver,criteria);
         
-    log.error("failed to verify signature with embedded certificates");
+    log.debug("failed to verify signature with embedded certificates");
     return false;
 }