Add examples about SignatureValidator

* signature-validator-until-3.0
* signature-validator-since-4.0

Change-Id: Ib721ba32bb8c9e155b42479ce772743346510fef
Signed-off-by: sangwan.kwon <sangwan.kwon@samsung.com>

14 files changed, 424 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ee61fbb..f9de2ad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -60,6 +60,7 @@ ADD_SUBDIRECTORY(etc)
 IF (DEFINED CERTSVC_TEST_BUILD)
 ADD_DEFINITIONS("-DTESTAPP_RES_DIR=\"${CERT_SVC_TESTS}/\"")
 ADD_SUBDIRECTORY(tests)
+ADD_SUBDIRECTORY(examples)
 ENDIF (DEFINED CERTSVC_TEST_BUILD)
 
 CONFIGURE_FILE(packaging/cert-svc.manifest.in cert-svc.manifest @ONLY)
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
new file mode 100644
index 0000000..13a67cb
--- /dev/null
+++ b/examples/CMakeLists.txt
@@ -0,0 +1,41 @@
+#
+#  Copyright (c) 2017 Samsung Electronics Co., Ltd All Rights Reserved
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License
+#
+
+ADD_DEFINITIONS("-DCERT_SVC_EXAMPLES=\"${CERT_SVC_EXAMPLES}\"")
+
+INCLUDE_DIRECTORIES(${PROJECT_SOURCE_DIR}/src)
+
+FUNCTION(BUILD_EXAMPLE EXAMPLE_NAME SOURCE_FILE)
+	ADD_EXECUTABLE(${EXAMPLE_NAME} ${CMAKE_CURRENT_SOURCE_DIR}/${SOURCE_FILE})
+	TARGET_LINK_LIBRARIES(${EXAMPLE_NAME} ${TARGET_VCORE_LIB})
+	INSTALL(TARGETS ${EXAMPLE_NAME}
+			DESTINATION ${BIN_DIR}
+			PERMISSIONS OWNER_READ
+						OWNER_WRITE
+						OWNER_EXECUTE
+						GROUP_READ
+						GROUP_EXECUTE
+						WORLD_READ
+						WORLD_EXECUTE)
+	INSTALL(FILES ${CMAKE_CURRENT_SOURCE_DIR}/${SOURCE_FILE}
+			DESTINATION ${CERT_SVC_EXAMPLES})
+ENDFUNCTION(BUILD_EXAMPLE)
+
+BUILD_EXAMPLE("cert-svc-example-vcore-until-3.0" signature-validator-until-3.0.cpp)
+BUILD_EXAMPLE("cert-svc-example-vcore-since-4.0" signature-validator-since-4.0.cpp)
+
+INSTALL(DIRECTORY resource
+		DESTINATION ${CERT_SVC_EXAMPLES})
diff --git a/examples/resource/player/author-signature.xml b/examples/resource/player/author-signature.xml
new file mode 100644
index 0000000..a36b3de
--- /dev/null
+++ b/examples/resource/player/author-signature.xml
@@ -0,0 +1,82 @@
+<Signature xmlns="http://www.w3.org/2000/09/xmldsig#" Id="AuthorSignature">
+<SignedInfo>
+<CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></CanonicalizationMethod>
+<SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"></SignatureMethod>
+<Reference URI="bin%2Fplayer">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>4iIofyuIao2qwVNIuhUCpugxEr7Rxmjnj2r0SrGx0+s=</DigestValue>
+</Reference>
+<Reference URI="res%2Fsample.3gp">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>WMfan++QSvRVetnCQ1b2n0l7/SoR/5oJeJ+4bFAW3tY=</DigestValue>
+</Reference>
+<Reference URI="res%2Ftest0.3gp">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>XFDMdIG8gkJhmZ+gG8Tkfl+dOnjxSYJtmUC+Gyr5xgM=</DigestValue>
+</Reference>
+<Reference URI="res%2Ftest1.wav">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>lhUM4r77NnuRbxpA4j9B2nqxA3A7BAxFoLJC2ij1kMw=</DigestValue>
+</Reference>
+<Reference URI="res%2Ftest2.wav">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>v2+TQF3YD9JZmgCX8ow7Wn/avjr2o/vSKglhM3weZBU=</DigestValue>
+</Reference>
+<Reference URI="shared%2Fres%2Fplayer.png">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>1d0oEZHqPn+QzNzGIHwj9ODby6x9ggFs9uOsav6jPNs=</DigestValue>
+</Reference>
+<Reference URI="tizen-manifest.xml">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>V+kS3pGWRSUjCG1YRNghKWNpPOJOw/VQ1j8OKaO5nmg=</DigestValue>
+</Reference>
+<Reference URI="#prop">
+<Transforms>
+<Transform Algorithm="http://www.w3.org/2006/12/xml-c14n11"></Transform>
+</Transforms>
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>lpo8tUDs054eLlBQXiDPVDVKfw30ZZdtkRs1jd7H5K8=</DigestValue>
+</Reference>
+</SignedInfo>
+<SignatureValue>
+pUNlYyBuHgMsic5q+VDIvpEfw5vJ90GIOwa+N6FlHc8pbYSzmOXimqrDSWslesj2X65xDB+OEB0X
+QUYrRL3surBjr/8p+/5fNsxqK5VIRBbry9SEhs6mU9sqTwOJcA7ZtW0XyPD1Eee60g90mDvHniVI
+oRGvUISF0TtUX7M8d3w=
+</SignatureValue>
+<KeyInfo>
+<X509Data>
+<X509Certificate>
+MIIClTCCAX2gAwIBAgIGAVODJIU1MA0GCSqGSIb3DQEBBQUAMFYxGjAYBgNVBAoMEVRpemVuIEFz
+c29jaWF0aW9uMRowGAYDVQQLDBFUaXplbiBBc3NvY2lhdGlvbjEcMBoGA1UEAwwTVGl6ZW4gRGV2
+ZWxvcGVycyBDQTAeFw0xMjExMDEwMDAwMDBaFw0xOTAxMDEwMDAwMDBaMBExDzANBgNVBAMMBmF1
+dGhvcjCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAqFd1i8Gps0Kb6WIAzCHSB1vbfjVbigOd
+kmOx/ESTS4XHPgA8LfqzjATrsASnCovZjxOkqlBEqENnwHirBAAKFGAfjiJWMrNtpBzpvGWYYe5W
+qqct0AxL8XjmMR2IQo0XjeTMT1MwLf7VsjINYeSiKr0YXDIQvjiHM4zxllfml08CAwEAAaMyMDAw
+DAYDVR0TAQH/BAIwADALBgNVHQ8EBAMCB4AwEwYDVR0lBAwwCgYIKwYBBQUHAwMwDQYJKoZIhvcN
+AQEFBQADggEBAG1lTFDWrlOobNHe1ZYXGFFfe0z6QHXXjdQcrbooZGgKYGLxuXrRFXkv101RNSu1
+XwCUhOsYVbHzDGHi/VngrbzYrFVPfNaF4HhfDHSKf+Fh0j0Hyyrkbx7jGzKKfykyUxb9ucHOgAp4
+MIM2RLIX2qqg/D/EHPZQjL4zEj8Ltya64CpiP56HvGZTjAz7W9dj1q+SuMWPiUrbNFjlibUTrlch
+sAg/dLdn9DE7vsb9evSkTXHBUh8F3l1f+Ejz8Rc8SQu3Vd3VMBPzwG97SLWWCGCSPCcMRl81jgv+
+knt+MQX2bqF9X5tmFva1zGER1YMhpP74xFW9/ge80Ys6PNpLOng=
+</X509Certificate>
+<X509Certificate>
+MIIDOTCCAiGgAwIBAgIBATANBgkqhkiG9w0BAQUFADBYMRowGAYDVQQKDBFUaXplbiBBc3NvY2lh
+dGlvbjEaMBgGA1UECwwRVGl6ZW4gQXNzb2NpYXRpb24xHjAcBgNVBAMMFVRpemVuIERldmVsb3Bl
+cnMgUm9vdDAeFw0xMjAxMDEwMDAwMDBaFw0yNzAxMDEwMDAwMDBaMFYxGjAYBgNVBAoMEVRpemVu
+IEFzc29jaWF0aW9uMRowGAYDVQQLDBFUaXplbiBBc3NvY2lhdGlvbjEcMBoGA1UEAwwTVGl6ZW4g
+RGV2ZWxvcGVycyBDQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANVGhRGmMIUyBA7o
+PCz8Sxut6z6HNkF4oDIuzuKaMzRYPeWodwe9O0gmqAkToQHfwg2giRhE5GoPld0fq+OYMMwSasCu
+g8dwODx1eDeSYVuOLWRxpAmbTXOsSFi6VoWeyaPEm18JBHvZBsU5YQtgZ6Kp7MqzvQg3pXOxtajj
+vyHxiatJl+xXrHgcXC1wgyG3buty7u/Fi2mvKXJ0PRJcCjjK81dqe/Vr20sRUCrbk02zbm5ggFt/
+jIEhV8wbFRQpliobc7J4dSTKhFfrqGM8rdd54LYhD7gSI1CFSe16pUXfcVR7FhJztRaiGLnCrwBE
+dyTZ248+D4L/qR/D0axb3jcCAwEAAaMQMA4wDAYDVR0TBAUwAwEB/zANBgkqhkiG9w0BAQUFAAOC
+AQEAnOXXQ/1O/QTDHyrmQDtFziqPY3xWlJBqJtEqXiT7Y+Ljpe66e+Ee/OjQMlZe8gu21/8cKklH
+95RxjopMWCVedXDUbWdvS2+CdyvVW/quT2E0tjqIzXDekUTYwwhlPWlGxvfj3VsxqSFq3p8Brl04
+1Gx5RKAGyKVsMfTLhbbwSWwApuBUxYfcNpKwLWGPXkysu+HctY03OKv4/xKBnVWiN8ex/Sgesi0M
++OBAOMdZMPK32uJBTeKFx1xZgTLIhk45V0hPOomPjZloiv0LSS11eyd451ufjW0iHRE7WlpR6EvI
+W6TFyZgMpQq+kg4hWl2SBTf3s2VI8Ygz7gj8TMlClg==
+</X509Certificate>
+</X509Data>
+</KeyInfo>
+<Object Id="prop"><SignatureProperties xmlns:dsp="http://www.w3.org/2009/xmldsig-properties"><SignatureProperty Id="profile" Target="#AuthorSignature"><dsp:Profile URI="http://www.w3.org/ns/widgets-digsig#profile"></dsp:Profile></SignatureProperty><SignatureProperty Id="role" Target="#AuthorSignature"><dsp:Role URI="http://www.w3.org/ns/widgets-digsig#role-author"></dsp:Role></SignatureProperty><SignatureProperty Id="identifier" Target="#AuthorSignature"><dsp:Identifier></dsp:Identifier></SignatureProperty></SignatureProperties></Object>
+</Signature>
\ No newline at end of file
diff --git a/examples/resource/player/bin/player b/examples/resource/player/bin/player
new file mode 100755
index 0000000..4489d02
--- /dev/null
+++ b/examples/resource/player/bin/player
diff --git a/examples/resource/player/res/sample.3gp b/examples/resource/player/res/sample.3gp
new file mode 100755
index 0000000..d2f415d
--- /dev/null
+++ b/examples/resource/player/res/sample.3gp
diff --git a/examples/resource/player/res/test0.3gp b/examples/resource/player/res/test0.3gp
new file mode 100755
index 0000000..4a3d8ea
--- /dev/null
+++ b/examples/resource/player/res/test0.3gp
diff --git a/examples/resource/player/res/test1.wav b/examples/resource/player/res/test1.wav
new file mode 100755
index 0000000..b5cabca
--- /dev/null
+++ b/examples/resource/player/res/test1.wav
diff --git a/examples/resource/player/res/test2.wav b/examples/resource/player/res/test2.wav
new file mode 100755
index 0000000..7265cbd
--- /dev/null
+++ b/examples/resource/player/res/test2.wav
diff --git a/examples/resource/player/shared/res/player.png b/examples/resource/player/shared/res/player.png
new file mode 100755
index 0000000..9765b1b
--- /dev/null
+++ b/examples/resource/player/shared/res/player.png
diff --git a/examples/resource/player/signature1.xml b/examples/resource/player/signature1.xml
new file mode 100644
index 0000000..0d9e3e6
--- /dev/null
+++ b/examples/resource/player/signature1.xml
@@ -0,0 +1,84 @@
+<Signature xmlns="http://www.w3.org/2000/09/xmldsig#" Id="DistributorSignature">
+<SignedInfo>
+<CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></CanonicalizationMethod>
+<SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"></SignatureMethod>
+<Reference URI="author-signature.xml">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>VVWnsf5bsID6FccZpe7Cl01iEP9wjil/rLWciQFBdx4=</DigestValue>
+</Reference>
+<Reference URI="bin%2Fplayer">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>4iIofyuIao2qwVNIuhUCpugxEr7Rxmjnj2r0SrGx0+s=</DigestValue>
+</Reference>
+<Reference URI="res%2Fsample.3gp">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>WMfan++QSvRVetnCQ1b2n0l7/SoR/5oJeJ+4bFAW3tY=</DigestValue>
+</Reference>
+<Reference URI="res%2Ftest0.3gp">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>XFDMdIG8gkJhmZ+gG8Tkfl+dOnjxSYJtmUC+Gyr5xgM=</DigestValue>
+</Reference>
+<Reference URI="res%2Ftest1.wav">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>lhUM4r77NnuRbxpA4j9B2nqxA3A7BAxFoLJC2ij1kMw=</DigestValue>
+</Reference>
+<Reference URI="res%2Ftest2.wav">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>v2+TQF3YD9JZmgCX8ow7Wn/avjr2o/vSKglhM3weZBU=</DigestValue>
+</Reference>
+<Reference URI="shared%2Fres%2Fplayer.png">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>1d0oEZHqPn+QzNzGIHwj9ODby6x9ggFs9uOsav6jPNs=</DigestValue>
+</Reference>
+<Reference URI="tizen-manifest.xml">
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>V+kS3pGWRSUjCG1YRNghKWNpPOJOw/VQ1j8OKaO5nmg=</DigestValue>
+</Reference>
+<Reference URI="#prop">
+<Transforms>
+<Transform Algorithm="http://www.w3.org/2006/12/xml-c14n11"></Transform>
+</Transforms>
+<DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"></DigestMethod>
+<DigestValue>u/jU3U4Zm5ihTMSjKGlGYbWzDfRkGphPPHx3gJIYEJ4=</DigestValue>
+</Reference>
+</SignedInfo>
+<SignatureValue>
+JoX9l1p6JEzziIU1oMvassakfgPr09hxR8umNmEt+E5IRN45C/ogLkQoo6t2pL7je3pW/AJtdJrX
+PkI8jOD8vYqh8TDZf59mwl1E9+C6y6KRx8PI/iyQNIcAUnkex1GPqjk76cUkUKPGmrrDxEV/7bMh
+mhsjvErXxvFcV+u43c4=
+</SignatureValue>
+<KeyInfo>
+<X509Data>
+<X509Certificate>
+MIICmzCCAgQCCQDXI7WLdVZwiTANBgkqhkiG9w0BAQUFADCBjzELMAkGA1UEBhMCS1IxDjAMBgNV
+BAgMBVN1d29uMQ4wDAYDVQQHDAVTdXdvbjEWMBQGA1UECgwNVGl6ZW4gVGVzdCBDQTEiMCAGA1UE
+CwwZVGl6ZW4gRGlzdHJpYnV0b3IgVGVzdCBDQTEkMCIGA1UEAwwbVGl6ZW4gUHVibGljIERpc3Ry
+aWJ1dG9yIENBMB4XDTEyMTAyOTEzMDMwNFoXDTIyMTAyNzEzMDMwNFowgZMxCzAJBgNVBAYTAktS
+MQ4wDAYDVQQIDAVTdXdvbjEOMAwGA1UEBwwFU3V3b24xFjAUBgNVBAoMDVRpemVuIFRlc3QgQ0Ex
+IjAgBgNVBAsMGVRpemVuIERpc3RyaWJ1dG9yIFRlc3QgQ0ExKDAmBgNVBAMMH1RpemVuIFB1Ymxp
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+vKaYjeIsuEX6TVRUugHWudPzcEuQRLQf8ibZWjbQdBmpeQYBMg5x+xKLCJc=
+</X509Certificate>
+<X509Certificate>
+MIICtDCCAh2gAwIBAgIJAMDbehElPNKvMA0GCSqGSIb3DQEBBQUAMIGVMQswCQYDVQQGEwJLUjEO
+MAwGA1UECAwFU3V3b24xDjAMBgNVBAcMBVN1d29uMRYwFAYDVQQKDA1UaXplbiBUZXN0IENBMSMw
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+VhfnkHwPltmrpYVe
+</X509Certificate>
+</X509Data>
+</KeyInfo>
+<Object Id="prop"><SignatureProperties xmlns:dsp="http://www.w3.org/2009/xmldsig-properties"><SignatureProperty Id="profile" Target="#DistributorSignature"><dsp:Profile URI="http://www.w3.org/ns/widgets-digsig#profile"></dsp:Profile></SignatureProperty><SignatureProperty Id="role" Target="#DistributorSignature"><dsp:Role URI="http://www.w3.org/ns/widgets-digsig#role-distributor"></dsp:Role></SignatureProperty><SignatureProperty Id="identifier" Target="#DistributorSignature"><dsp:Identifier></dsp:Identifier></SignatureProperty></SignatureProperties></Object>
+</Signature>
\ No newline at end of file
diff --git a/examples/resource/player/tizen-manifest.xml b/examples/resource/player/tizen-manifest.xml
new file mode 100755
index 0000000..c7c99d4
--- /dev/null
+++ b/examples/resource/player/tizen-manifest.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<manifest xmlns="http://tizen.org/ns/packages" api-version="2.4" package="org.example.player" version="1.0.0">
+    <profile name="mobile"/>
+    <ui-application appid="org.example.player" exec="player" multiple="false" nodisplay="false" taskmanage="true" type="capp">
+        <label>player</label>
+        <icon>player.png</icon>
+    </ui-application>
+</manifest>
diff --git a/examples/signature-validator-since-4.0.cpp b/examples/signature-validator-since-4.0.cpp
new file mode 100644
index 0000000..4351bfe
--- /dev/null
+++ b/examples/signature-validator-since-4.0.cpp
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+/*
+ * @file        signature-validator-since-4.0.cpp
+ * @author      Sangwan Kwon (sangwan.kwon@samsung.com)
+ * @version     1.0
+ * @brief       Signature Validator example (Tizen_4.0 ~ )
+ */
+#include <string>
+#include <iostream>
+
+#include <vcore/SignatureValidator.h>
+
+const std::string PKG_PATH(CERT_SVC_EXAMPLES "/resource/player");
+
+int main()
+{
+	// Step 1. Validate signature files.
+	ValidationCore::SignatureValidator validator(PKG_PATH);
+	ValidationCore::SignatureDataMap sigDataMap;
+	ValidationCore::VCerr result = validator.checkAll(true, // OCSP
+													  true, // reverse reference check
+													  sigDataMap);
+	/*
+		If you want to validate specific files, use checkListAll().
+
+		ex) UriList uriList;
+			uriList.emplace_back("author-siganture.xml");
+			uriList.emplace_back("res/res.xml");
+			uriList.emplace_back("shared/res/preference.png");
+			uriList.emplace_back("tizen-manifest.xml");
+
+			validator.checkListAll(true, // OCSP
+								   uriList,
+								   data);
+	*/
+
+	switch (result) {
+	case ValidationCore::E_SIG_DISREGARDED:
+		std::cout << "This signature is disregarded." << std::endl;
+		break;
+
+	case ValidationCore::E_SIG_NONE:
+		std::cout << "Success to validate signature." << std::endl;
+		break;
+
+	default:
+		std::cout << "Failed to validate signature : "
+				  << validator.errorToString(result) << std::endl;
+		return -1;
+	}
+
+	// Step 2. Get certificate list from signature.
+	auto authorSigData = sigDataMap[ValidationCore::SignatureType::AUTHOR];
+	for (const auto &certPtr : authorSigData.getCertList())
+		std::cout << "Author certificate > "
+				  << certPtr->getBase64() << std::endl;
+
+	auto dist1SigData = sigDataMap[ValidationCore::SignatureType::DISTRIBUTOR1];
+	for (const auto &certPtr : dist1SigData.getCertList())
+		std::cout << "Distributor1 certificate > "
+				  << certPtr->getBase64() << std::endl;
+
+	auto dist2SigData = sigDataMap[ValidationCore::SignatureType::DISTRIBUTOR2];
+	for (const auto &certPtr : dist2SigData.getCertList())
+		std::cout << "Distributor2 certificate > "
+				  << certPtr->getBase64() << std::endl;
+
+	// Step 3. Check visibility about distributor1.
+	switch (dist1SigData.getVisibilityLevel()) {
+	case ValidationCore::CertStoreId::VIS_PUBLIC:
+		std::cout << "This signature has public visibility." << std::endl;
+		break;
+	case ValidationCore::CertStoreId::VIS_PARTNER:
+		std::cout << "This signature has partner visibility." << std::endl;
+		break;
+	case ValidationCore::CertStoreId::VIS_PLATFORM:
+		std::cout << "This signature has platform visibility." << std::endl;
+		break;
+	default:
+		std::cout << "Failed to get proper visibility." << std::endl;
+		return -1;
+	}
+
+	return 0;
+}
diff --git a/examples/signature-validator-until-3.0.cpp b/examples/signature-validator-until-3.0.cpp
new file mode 100644
index 0000000..8db28d4
--- /dev/null
+++ b/examples/signature-validator-until-3.0.cpp
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+/*
+ * @file        signature-validator-until-3.0.cpp
+ * @author      Sangwan Kwon (sangwan.kwon@samsung.com)
+ * @version     1.0
+ * @brief       Signature Validator example (~ Tizen_3.0)
+ */
+#include <string>
+#include <iostream>
+
+#include <vcore/SignatureValidator.h>
+
+const std::string PKG_PATH(CERT_SVC_EXAMPLES "/resource/player");
+
+int main()
+{
+	// Step 1. Find signature files in package.
+	ValidationCore::SignatureFileInfoSet signatureSet;
+	ValidationCore::SignatureFinder finder(PKG_PATH);
+	if (ValidationCore::SignatureFinder::NO_ERROR != finder.find(signatureSet)) {
+		std::cout << "Failed to find signature." << std::endl;
+		return -1;
+	}
+
+	// Step 2. Validate signature files.
+	for (const auto &signature : signatureSet) {
+		ValidationCore::SignatureValidator validator(signature);
+		ValidationCore::SignatureData data;
+		ValidationCore::VCerr result = validator.check(PKG_PATH,
+													   true, // OCSP
+													   true, // reverse reference check
+													   data);
+		/*
+			If you want to validate specific files, use checkList().
+
+			ex) UriList uriList;
+				uriList.emplace_back("author-siganture.xml");
+				uriList.emplace_back("res/res.xml");
+				uriList.emplace_back("shared/res/preference.png");
+				uriList.emplace_back("tizen-manifest.xml");
+
+				validator.checkList(true, // OCSP
+									uriList,
+									data);
+		*/
+
+		std::cout << "Start to validate : "
+				  << data.getSignatureFileName() << std::endl;
+
+		switch (result) {
+		case ValidationCore::E_SIG_DISREGARDED:
+			std::cout << "This signature is disregarded." << std::endl;
+			break;
+
+		case ValidationCore::E_SIG_NONE:
+			std::cout << "Success to validate signature." << std::endl;
+			// Step 3. Get certificate list from signature.
+			for (const auto &certPtr : data.getCertList())
+				std::cout << certPtr->getBase64() << std::endl;
+			break;
+
+		default:
+			std::cout << "Failed to validate signature : "
+					  << validator.errorToString(result) << std::endl;
+			return -1;
+		}
+
+		// Step 4. Check visibility about distributor1.
+		if (!data.isAuthorSignature() && data.getSignatureNumber() == 1) {
+			switch (data.getVisibilityLevel()) {
+			case ValidationCore::CertStoreId::VIS_PUBLIC:
+				std::cout << "This signature has public visibility." << std::endl;
+				break;
+			case ValidationCore::CertStoreId::VIS_PARTNER:
+				std::cout << "This signature has partner visibility." << std::endl;
+				break;
+			case ValidationCore::CertStoreId::VIS_PLATFORM:
+				std::cout << "This signature has platform visibility." << std::endl;
+				break;
+			default:
+				std::cout << "Failed to get proper visibility." << std::endl;
+				return -1;
+			}
+		}
+	}
+
+	return 0;
+}
diff --git a/packaging/cert-svc.spec b/packaging/cert-svc.spec
index ad0c01f..83fee99 100644
--- a/packaging/cert-svc.spec
+++ b/packaging/cert-svc.spec
@@ -49,6 +49,7 @@ Requires: openssl
 %global cert_svc_pkcs12         %cert_svc_path/pkcs12
 %global cert_svc_transec        %cert_svc_path/transec
 %global cert_svc_ca_bundle      %cert_svc_path/ca-certificate.crt
+%global cert_svc_examples       %cert_svc_ro_path/examples
 %global cert_svc_tests          %rw_app_dir/cert-svc-tests
 
 %global cert_svc_old_db_path    /opt/share/cert-svc/dbspace
@@ -120,6 +121,7 @@ export FFLAGS="$FFLAGS -DTIZEN_EMULATOR_MODE"
 %if 0%{?certsvc_test_build}
          -DCERTSVC_TEST_BUILD=1 \
          -DCERT_SVC_TESTS=%cert_svc_tests \
+         -DCERT_SVC_EXAMPLES=%cert_svc_examples \
 %endif
          -DCMAKE_BUILD_TYPE=%build_type \
          -DSYSTEMD_UNIT_DIR=%_unitdir
@@ -190,6 +192,11 @@ fi
 %bin_dir/cert-svc-test*
 %cert_svc_tests
 %_libdir/libcert-svc-validator-plugin.so
+
 %attr(755, root, root) %upgrade_script_path/cert-svc-test-upgrade.sh
 %upgrade_data_path/certs-meta-old.db
+
+%bin_dir/cert-svc-example*
+%cert_svc_examples
+
 %endif