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authororivej <[email protected]>2022-02-10 16:45:01 +0300
committerDaniil Cherednik <[email protected]>2022-02-10 16:45:01 +0300
commit2d37894b1b037cf24231090eda8589bbb44fb6fc (patch)
treebe835aa92c6248212e705f25388ebafcf84bc7a1 /contrib/libs/poco/Crypto/src/CipherKeyImpl.cpp
parent718c552901d703c502ccbefdfc3c9028d608b947 (diff)
Restoring authorship annotation for <[email protected]>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/poco/Crypto/src/CipherKeyImpl.cpp')
-rw-r--r--contrib/libs/poco/Crypto/src/CipherKeyImpl.cpp448
1 files changed, 224 insertions, 224 deletions
diff --git a/contrib/libs/poco/Crypto/src/CipherKeyImpl.cpp b/contrib/libs/poco/Crypto/src/CipherKeyImpl.cpp
index f793082ba03..2af173bce85 100644
--- a/contrib/libs/poco/Crypto/src/CipherKeyImpl.cpp
+++ b/contrib/libs/poco/Crypto/src/CipherKeyImpl.cpp
@@ -1,224 +1,224 @@
-//
-// CipherKeyImpl.cpp
-//
-// Library: Crypto
-// Package: Cipher
-// Module: CipherKeyImpl
-//
-// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
-// and Contributors.
-//
-// SPDX-License-Identifier: BSL-1.0
-//
-
-
-#include "Poco/Crypto/CipherKeyImpl.h"
-#include "Poco/Crypto/CryptoTransform.h"
-#include "Poco/Crypto/CipherFactory.h"
-#include "Poco/Exception.h"
-#include "Poco/RandomStream.h"
-#include <openssl/err.h>
-#include <openssl/evp.h>
-
-
-namespace Poco {
-namespace Crypto {
-
-
-CipherKeyImpl::CipherKeyImpl(const std::string& name,
- const std::string& passphrase,
- const std::string& salt,
- int iterationCount,
- const std::string& digest):
- _pCipher(0),
- _pDigest(0),
- _name(name),
- _key(),
- _iv()
-{
- // dummy access to Cipherfactory so that the EVP lib is initilaized
- CipherFactory::defaultFactory();
- _pCipher = EVP_get_cipherbyname(name.c_str());
-
- if (!_pCipher)
- throw Poco::NotFoundException("Cipher " + name + " was not found");
-
- _pDigest = EVP_get_digestbyname(digest.c_str());
-
- if (!_pDigest)
- throw Poco::NotFoundException("Digest " + name + " was not found");
-
- _key = ByteVec(keySize());
- _iv = ByteVec(ivSize());
- generateKey(passphrase, salt, iterationCount);
-}
-
-
-CipherKeyImpl::CipherKeyImpl(const std::string& name,
- const ByteVec& key,
- const ByteVec& iv):
- _pCipher(0),
- _pDigest(0),
- _name(name),
- _key(key),
- _iv(iv)
-{
- // dummy access to Cipherfactory so that the EVP lib is initialized
- CipherFactory::defaultFactory();
- _pCipher = EVP_get_cipherbyname(name.c_str());
-
- if (!_pCipher)
- throw Poco::NotFoundException("Cipher " + name + " was not found");
-}
-
-
-CipherKeyImpl::CipherKeyImpl(const std::string& name):
- _pCipher(0),
- _pDigest(0),
- _name(name),
- _key(),
- _iv()
-{
- // dummy access to Cipherfactory so that the EVP lib is initilaized
- CipherFactory::defaultFactory();
- _pCipher = EVP_get_cipherbyname(name.c_str());
-
- if (!_pCipher)
- throw Poco::NotFoundException("Cipher " + name + " was not found");
- _key = ByteVec(keySize());
- _iv = ByteVec(ivSize());
- generateKey();
-}
-
-
-CipherKeyImpl::~CipherKeyImpl()
-{
-}
-
-
-CipherKeyImpl::Mode CipherKeyImpl::mode() const
-{
- switch (EVP_CIPHER_mode(_pCipher))
- {
- case EVP_CIPH_STREAM_CIPHER:
- return MODE_STREAM_CIPHER;
-
- case EVP_CIPH_ECB_MODE:
- return MODE_ECB;
-
- case EVP_CIPH_CBC_MODE:
- return MODE_CBC;
-
- case EVP_CIPH_CFB_MODE:
- return MODE_CFB;
-
- case EVP_CIPH_OFB_MODE:
- return MODE_OFB;
-
-#if OPENSSL_VERSION_NUMBER >= 0x10001000L
- case EVP_CIPH_CTR_MODE:
- return MODE_CTR;
-
- case EVP_CIPH_GCM_MODE:
- return MODE_GCM;
-
- case EVP_CIPH_CCM_MODE:
- return MODE_CCM;
-#endif
- }
- throw Poco::IllegalStateException("Unexpected value of EVP_CIPHER_mode()");
-}
-
-
-void CipherKeyImpl::generateKey()
-{
- ByteVec vec;
-
- getRandomBytes(vec, keySize());
- setKey(vec);
-
- getRandomBytes(vec, ivSize());
- setIV(vec);
-}
-
-
-void CipherKeyImpl::getRandomBytes(ByteVec& vec, std::size_t count)
-{
- Poco::RandomInputStream random;
-
- vec.clear();
- vec.reserve(count);
-
- for (int i = 0; i < count; ++i)
- vec.push_back(static_cast<unsigned char>(random.get()));
-}
-
-
-void CipherKeyImpl::generateKey(
- const std::string& password,
- const std::string& salt,
- int iterationCount)
-{
- unsigned char keyBytes[EVP_MAX_KEY_LENGTH];
- unsigned char ivBytes[EVP_MAX_IV_LENGTH];
-
- // OpenSSL documentation specifies that the salt must be an 8-byte array.
- unsigned char saltBytes[8];
-
- if (!salt.empty())
- {
- int len = static_cast<int>(salt.size());
- // Create the salt array from the salt string
- for (int i = 0; i < 8; ++i)
- saltBytes[i] = salt.at(i % len);
- for (int i = 8; i < len; ++i)
- saltBytes[i % 8] ^= salt.at(i);
- }
-
- // Now create the key and IV, using the MD5 digest algorithm.
- int keySize = EVP_BytesToKey(
- _pCipher,
- _pDigest ? _pDigest : EVP_md5(),
- (salt.empty() ? 0 : saltBytes),
- reinterpret_cast<const unsigned char*>(password.data()),
- static_cast<int>(password.size()),
- iterationCount,
- keyBytes,
- ivBytes);
-
- // Copy the buffers to our member byte vectors.
- _key.assign(keyBytes, keyBytes + keySize);
-
- if (ivSize() == 0)
- _iv.clear();
- else
- _iv.assign(ivBytes, ivBytes + ivSize());
-}
-
-
-int CipherKeyImpl::keySize() const
-{
- return EVP_CIPHER_key_length(_pCipher);
-}
-
-
-int CipherKeyImpl::blockSize() const
-{
- return EVP_CIPHER_block_size(_pCipher);
-}
-
-
-int CipherKeyImpl::ivSize() const
-{
- return EVP_CIPHER_iv_length(_pCipher);
-}
-
-
-void CipherKeyImpl::setIV(const ByteVec& iv)
-{
- poco_assert(mode() == MODE_GCM || iv.size() == static_cast<ByteVec::size_type>(ivSize()));
- _iv = iv;
-}
-
-
-} } // namespace Poco::Crypto
+//
+// CipherKeyImpl.cpp
+//
+// Library: Crypto
+// Package: Cipher
+// Module: CipherKeyImpl
+//
+// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier: BSL-1.0
+//
+
+
+#include "Poco/Crypto/CipherKeyImpl.h"
+#include "Poco/Crypto/CryptoTransform.h"
+#include "Poco/Crypto/CipherFactory.h"
+#include "Poco/Exception.h"
+#include "Poco/RandomStream.h"
+#include <openssl/err.h>
+#include <openssl/evp.h>
+
+
+namespace Poco {
+namespace Crypto {
+
+
+CipherKeyImpl::CipherKeyImpl(const std::string& name,
+ const std::string& passphrase,
+ const std::string& salt,
+ int iterationCount,
+ const std::string& digest):
+ _pCipher(0),
+ _pDigest(0),
+ _name(name),
+ _key(),
+ _iv()
+{
+ // dummy access to Cipherfactory so that the EVP lib is initilaized
+ CipherFactory::defaultFactory();
+ _pCipher = EVP_get_cipherbyname(name.c_str());
+
+ if (!_pCipher)
+ throw Poco::NotFoundException("Cipher " + name + " was not found");
+
+ _pDigest = EVP_get_digestbyname(digest.c_str());
+
+ if (!_pDigest)
+ throw Poco::NotFoundException("Digest " + name + " was not found");
+
+ _key = ByteVec(keySize());
+ _iv = ByteVec(ivSize());
+ generateKey(passphrase, salt, iterationCount);
+}
+
+
+CipherKeyImpl::CipherKeyImpl(const std::string& name,
+ const ByteVec& key,
+ const ByteVec& iv):
+ _pCipher(0),
+ _pDigest(0),
+ _name(name),
+ _key(key),
+ _iv(iv)
+{
+ // dummy access to Cipherfactory so that the EVP lib is initialized
+ CipherFactory::defaultFactory();
+ _pCipher = EVP_get_cipherbyname(name.c_str());
+
+ if (!_pCipher)
+ throw Poco::NotFoundException("Cipher " + name + " was not found");
+}
+
+
+CipherKeyImpl::CipherKeyImpl(const std::string& name):
+ _pCipher(0),
+ _pDigest(0),
+ _name(name),
+ _key(),
+ _iv()
+{
+ // dummy access to Cipherfactory so that the EVP lib is initilaized
+ CipherFactory::defaultFactory();
+ _pCipher = EVP_get_cipherbyname(name.c_str());
+
+ if (!_pCipher)
+ throw Poco::NotFoundException("Cipher " + name + " was not found");
+ _key = ByteVec(keySize());
+ _iv = ByteVec(ivSize());
+ generateKey();
+}
+
+
+CipherKeyImpl::~CipherKeyImpl()
+{
+}
+
+
+CipherKeyImpl::Mode CipherKeyImpl::mode() const
+{
+ switch (EVP_CIPHER_mode(_pCipher))
+ {
+ case EVP_CIPH_STREAM_CIPHER:
+ return MODE_STREAM_CIPHER;
+
+ case EVP_CIPH_ECB_MODE:
+ return MODE_ECB;
+
+ case EVP_CIPH_CBC_MODE:
+ return MODE_CBC;
+
+ case EVP_CIPH_CFB_MODE:
+ return MODE_CFB;
+
+ case EVP_CIPH_OFB_MODE:
+ return MODE_OFB;
+
+#if OPENSSL_VERSION_NUMBER >= 0x10001000L
+ case EVP_CIPH_CTR_MODE:
+ return MODE_CTR;
+
+ case EVP_CIPH_GCM_MODE:
+ return MODE_GCM;
+
+ case EVP_CIPH_CCM_MODE:
+ return MODE_CCM;
+#endif
+ }
+ throw Poco::IllegalStateException("Unexpected value of EVP_CIPHER_mode()");
+}
+
+
+void CipherKeyImpl::generateKey()
+{
+ ByteVec vec;
+
+ getRandomBytes(vec, keySize());
+ setKey(vec);
+
+ getRandomBytes(vec, ivSize());
+ setIV(vec);
+}
+
+
+void CipherKeyImpl::getRandomBytes(ByteVec& vec, std::size_t count)
+{
+ Poco::RandomInputStream random;
+
+ vec.clear();
+ vec.reserve(count);
+
+ for (int i = 0; i < count; ++i)
+ vec.push_back(static_cast<unsigned char>(random.get()));
+}
+
+
+void CipherKeyImpl::generateKey(
+ const std::string& password,
+ const std::string& salt,
+ int iterationCount)
+{
+ unsigned char keyBytes[EVP_MAX_KEY_LENGTH];
+ unsigned char ivBytes[EVP_MAX_IV_LENGTH];
+
+ // OpenSSL documentation specifies that the salt must be an 8-byte array.
+ unsigned char saltBytes[8];
+
+ if (!salt.empty())
+ {
+ int len = static_cast<int>(salt.size());
+ // Create the salt array from the salt string
+ for (int i = 0; i < 8; ++i)
+ saltBytes[i] = salt.at(i % len);
+ for (int i = 8; i < len; ++i)
+ saltBytes[i % 8] ^= salt.at(i);
+ }
+
+ // Now create the key and IV, using the MD5 digest algorithm.
+ int keySize = EVP_BytesToKey(
+ _pCipher,
+ _pDigest ? _pDigest : EVP_md5(),
+ (salt.empty() ? 0 : saltBytes),
+ reinterpret_cast<const unsigned char*>(password.data()),
+ static_cast<int>(password.size()),
+ iterationCount,
+ keyBytes,
+ ivBytes);
+
+ // Copy the buffers to our member byte vectors.
+ _key.assign(keyBytes, keyBytes + keySize);
+
+ if (ivSize() == 0)
+ _iv.clear();
+ else
+ _iv.assign(ivBytes, ivBytes + ivSize());
+}
+
+
+int CipherKeyImpl::keySize() const
+{
+ return EVP_CIPHER_key_length(_pCipher);
+}
+
+
+int CipherKeyImpl::blockSize() const
+{
+ return EVP_CIPHER_block_size(_pCipher);
+}
+
+
+int CipherKeyImpl::ivSize() const
+{
+ return EVP_CIPHER_iv_length(_pCipher);
+}
+
+
+void CipherKeyImpl::setIV(const ByteVec& iv)
+{
+ poco_assert(mode() == MODE_GCM || iv.size() == static_cast<ByteVec::size_type>(ivSize()));
+ _iv = iv;
+}
+
+
+} } // namespace Poco::Crypto