2 * Copyright 2001-2006 Internet2
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 * @file saml/security/TrustEngine.h
20 * SAML-specific TrustEngine API
23 #ifndef __saml_trust_h__
24 #define __saml_trust_h__
26 #include <saml/base.h>
27 #include <saml/saml2/metadata/Metadata.h>
28 #include <xmltooling/signature/KeyResolver.h>
33 * Adapts SAML metadata as a source of KeyInfo for a TrustEngine
34 * and adds SAML-specific signature validation.
36 class SAML_API TrustEngine {
37 MAKE_NONCOPYABLE(TrustEngine);
42 * If a DOM is supplied, the following XML content is supported:
45 * <li><KeyResolver> elements with a type attribute
48 * XML namespaces are ignored in the processing of this content.
50 * @param e DOM to supply configuration for provider
52 TrustEngine(const DOMElement* e=NULL) {}
55 virtual ~TrustEngine() {}
58 * Determines whether a signed SAML object is correct and valid with respect
59 * to the information known about the issuer.
61 * A custom KeyResolver can be supplied from outside the TrustEngine.
62 * Alternatively, one may be specified to the plugin constructor.
63 * A non-caching, inline resolver will be used as a fallback.
65 * @param sig reference to a signature object to validate
66 * @param role metadata role supplying key information
67 * @param keyResolver optional externally supplied KeyResolver, or NULL
68 * @return true iff the signature validates
70 virtual bool validate(
71 xmlsignature::Signature& sig,
72 const saml2md::RoleDescriptor& role,
73 const xmlsignature::KeyResolver* keyResolver=NULL
77 * Determines whether a raw signature is correct and valid with respect to
78 * the information known about the signer.
80 * <p>A custom KeyResolver can be supplied from outside the TrustEngine.
81 * Alternatively, one may be specified to the plugin constructor.
82 * A non-caching, inline resolver will be used as a fallback.
84 * @param sigAlgorithm XML Signature identifier for the algorithm used
85 * @param sig null-terminated base64-encoded signature value
86 * @param keyInfo KeyInfo object accompanying the signature, if any
87 * @param in the input data over which the signature was created
88 * @param in_len size of input data in bytes
89 * @param role metadata role supplying key information
90 * @param keyResolver optional externally supplied KeyResolver, or NULL
91 * @return true iff the signature validates
93 virtual bool validate(
94 const XMLCh* sigAlgorithm,
96 xmlsignature::KeyInfo* keyInfo,
99 const saml2md::RoleDescriptor& role,
100 const xmlsignature::KeyResolver* keyResolver=NULL
106 * Registers TrustEngine classes into the runtime.
108 void SAML_API registerTrustEngines();
110 /** TrustEngine based on explicit key information resolved from metadata. */
111 #define EXPLICIT_KEY_SAMLTRUSTENGINE "org.opensaml.security.ExplicitKeyTrustEngine"
113 /** TrustEngine that tries multiple engines in sequence. */
114 #define CHAINING_SAMLTRUSTENGINE "org.opensaml.security.ChainingTrustEngine"
117 #endif /* __saml_trust_h__ */