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-rw-r--r--SoftHSMv2/src/lib/crypto/OSSLRSAPublicKey.cpp155
1 files changed, 155 insertions, 0 deletions
diff --git a/SoftHSMv2/src/lib/crypto/OSSLRSAPublicKey.cpp b/SoftHSMv2/src/lib/crypto/OSSLRSAPublicKey.cpp
new file mode 100644
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+++ b/SoftHSMv2/src/lib/crypto/OSSLRSAPublicKey.cpp
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+/*
+ * Copyright (c) 2010 SURFnet bv
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*****************************************************************************
+ OSSLRSAPublicKey.cpp
+
+ OpenSSL RSA public key class
+ *****************************************************************************/
+
+#include "config.h"
+#include "log.h"
+#include "OSSLComp.h"
+#include "OSSLRSAPublicKey.h"
+#include "OSSLUtil.h"
+#include <string.h>
+#include <openssl/bn.h>
+#ifdef WITH_FIPS
+#include <openssl/fips.h>
+#endif
+
+// Constructors
+OSSLRSAPublicKey::OSSLRSAPublicKey()
+{
+ rsa = NULL;
+}
+
+OSSLRSAPublicKey::OSSLRSAPublicKey(const RSA* inRSA)
+{
+ rsa = NULL;
+
+ setFromOSSL(inRSA);
+}
+
+// Destructor
+OSSLRSAPublicKey::~OSSLRSAPublicKey()
+{
+ RSA_free(rsa);
+}
+
+// The type
+/*static*/ const char* OSSLRSAPublicKey::type = "OpenSSL RSA Public Key";
+
+// Check if the key is of the given type
+bool OSSLRSAPublicKey::isOfType(const char* inType)
+{
+ return !strcmp(type, inType);
+}
+
+// Set from OpenSSL representation
+void OSSLRSAPublicKey::setFromOSSL(const RSA* inRSA)
+{
+ const BIGNUM* bn_n = NULL;
+ const BIGNUM* bn_e = NULL;
+
+ RSA_get0_key(inRSA, &bn_n, &bn_e, NULL);
+
+ if (bn_n)
+ {
+ ByteString inN = OSSL::bn2ByteString(bn_n);
+ setN(inN);
+ }
+ if (bn_e)
+ {
+ ByteString inE = OSSL::bn2ByteString(bn_e);
+ setE(inE);
+ }
+}
+
+// Setters for the RSA public key components
+void OSSLRSAPublicKey::setN(const ByteString& inN)
+{
+ RSAPublicKey::setN(inN);
+
+ if (rsa)
+ {
+ RSA_free(rsa);
+ rsa = NULL;
+ }
+}
+
+void OSSLRSAPublicKey::setE(const ByteString& inE)
+{
+ RSAPublicKey::setE(inE);
+
+ if (rsa)
+ {
+ RSA_free(rsa);
+ rsa = NULL;
+ }
+}
+
+// Retrieve the OpenSSL representation of the key
+RSA* OSSLRSAPublicKey::getOSSLKey()
+{
+ if (rsa == NULL) createOSSLKey();
+
+ return rsa;
+}
+
+// Create the OpenSSL representation of the key
+void OSSLRSAPublicKey::createOSSLKey()
+{
+ if (rsa != NULL) return;
+
+ rsa = RSA_new();
+ if (rsa == NULL)
+ {
+ ERROR_MSG("Could not create RSA object");
+ return;
+ }
+
+ // Use the OpenSSL implementation and not any engine
+#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
+
+#ifdef WITH_FIPS
+ if (FIPS_mode())
+ RSA_set_method(rsa, FIPS_rsa_pkcs1_ssleay());
+ else
+ RSA_set_method(rsa, RSA_PKCS1_SSLeay());
+#else
+ RSA_set_method(rsa, RSA_PKCS1_SSLeay());
+#endif
+
+#else
+ RSA_set_method(rsa, RSA_PKCS1_OpenSSL());
+#endif
+
+ BIGNUM* bn_n = OSSL::byteString2bn(n);
+ BIGNUM* bn_e = OSSL::byteString2bn(e);
+
+ RSA_set0_key(rsa, bn_n, bn_e, NULL);
+}