diff options
Diffstat (limited to 'SoftHSMv2/src/lib/crypto/BotanECDSAPublicKey.cpp')
| -rw-r--r-- | SoftHSMv2/src/lib/crypto/BotanECDSAPublicKey.cpp | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/SoftHSMv2/src/lib/crypto/BotanECDSAPublicKey.cpp b/SoftHSMv2/src/lib/crypto/BotanECDSAPublicKey.cpp new file mode 100644 index 0000000..3409d88 --- /dev/null +++ b/SoftHSMv2/src/lib/crypto/BotanECDSAPublicKey.cpp @@ -0,0 +1,151 @@ +/* + * Copyright (c) 2010 .SE (The Internet Infrastructure Foundation) + * 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. + */ + +/***************************************************************************** + BotanECDSAPublicKey.cpp + + Botan ECDSA public key class + *****************************************************************************/ + +#include "config.h" +#ifdef WITH_ECC +#include "log.h" +#include "BotanECDSAPublicKey.h" +#include "BotanUtil.h" +#include <string.h> + +// Constructors +BotanECDSAPublicKey::BotanECDSAPublicKey() +{ + eckey = NULL; +} + +BotanECDSAPublicKey::BotanECDSAPublicKey(const Botan::ECDSA_PublicKey* inECKEY) +{ + eckey = NULL; + + setFromBotan(inECKEY); +} + +// Destructor +BotanECDSAPublicKey::~BotanECDSAPublicKey() +{ + delete eckey; +} + +// The type +/*static*/ const char* BotanECDSAPublicKey::type = "Botan ECDSA Public Key"; + +// Get the base point order length +unsigned long BotanECDSAPublicKey::getOrderLength() const +{ + try + { + Botan::EC_Group group = BotanUtil::byteString2ECGroup(ec); + return group.get_order().bytes(); + } + catch (...) + { + ERROR_MSG("Can't get EC group for order length"); + + return 0; + } +} + +// Set from Botan representation +void BotanECDSAPublicKey::setFromBotan(const Botan::ECDSA_PublicKey* inECKEY) +{ + ByteString inEC = BotanUtil::ecGroup2ByteString(inECKEY->domain()); + setEC(inEC); + ByteString inQ = BotanUtil::ecPoint2ByteString(inECKEY->public_point()); + setQ(inQ); +} + +// Check if the key is of the given type +bool BotanECDSAPublicKey::isOfType(const char* inType) +{ + return !strcmp(type, inType); +} + +// Setters for the ECDSA public key components +void BotanECDSAPublicKey::setEC(const ByteString& inEC) +{ + ECPublicKey::setEC(inEC); + + if (eckey) + { + delete eckey; + eckey = NULL; + } +} + +void BotanECDSAPublicKey::setQ(const ByteString& inQ) +{ + ECPublicKey::setQ(inQ); + + if (eckey) + { + delete eckey; + eckey = NULL; + } +} + +// Retrieve the Botan representation of the key +Botan::ECDSA_PublicKey* BotanECDSAPublicKey::getBotanKey() +{ + if (!eckey) + { + createBotanKey(); + } + + return eckey; +} + +// Create the Botan representation of the key +void BotanECDSAPublicKey::createBotanKey() +{ + if (ec.size() != 0 && + q.size() != 0) + { + if (eckey) + { + delete eckey; + eckey = NULL; + } + + try + { + Botan::EC_Group group = BotanUtil::byteString2ECGroup(ec); + Botan::PointGFp point = BotanUtil::byteString2ECPoint(q, group); + eckey = new Botan::ECDSA_PublicKey(group, point); + } + catch (...) + { + ERROR_MSG("Could not create the Botan public key"); + } + } +} +#endif |