added X509Certificate::equals()

Crypto/include/Poco/Crypto/X509Certificate.h

@@ -130,6 +130,14 @@ public:
 		/// Returns true if verification against the issuer certificate
 		/// was successful, false otherwise.
 
+	bool equals(const X509Certificate& otherCertificate) const;
+		/// Checks whether the certificate is equal to
+		/// the other certificate, by comparing the hashes
+		/// of both certificates.
+		///
+		/// Returns true if both certificates are identical,
+		/// otherwise false.
+
 	const X509* certificate() const;
 		/// Returns the underlying OpenSSL certificate.
 

Crypto/src/X509Certificate.cpp

@@ -284,4 +284,12 @@ bool X509Certificate::issuedBy(const X509Certificate& issuerCertificate) const
 }
 
 
+bool X509Certificate::equals(const X509Certificate& otherCertificate) const
+{
+	X509* pCert = const_cast<X509*>(_pCert);
+	X509* pOtherCert = const_cast<X509*>(otherCertificate.certificate());
+	return X509_cmp(pCert, pOtherCert) == 0;
+}
+
+
 } } // namespace Poco::Crypto

Crypto/testsuite/src/CryptoTest.cpp

@@ -304,6 +304,11 @@ void CryptoTest::testCertificate()
 	
 	// fails with recent OpenSSL versions:
 	// assert (cert.issuedBy(cert));
+	
+	std::istringstream otherCertStream(APPINF_PEM);
+	X509Certificate otherCert(otherCertStream);
+	
+	assert (cert.equals(otherCert));
 }