103 lines
3.0 KiB
C++
103 lines
3.0 KiB
C++
/*
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* Copyright 1999-2019 Alibaba Cloud All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <alibabacloud/core/HmacSha1Signer.h>
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#ifdef _WIN32
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#include <windows.h>
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#include <wincrypt.h>
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#else
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#include <openssl/hmac.h>
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#endif
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namespace AlibabaCloud {
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HmacSha1Signer::HmacSha1Signer() :
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Signer(HmacSha1, "HMAC-SHA1", "1.0") {
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}
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HmacSha1Signer::~HmacSha1Signer() {
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}
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std::string HmacSha1Signer::generate(const std::string & src,
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const std::string & secret) const {
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if (src.empty())
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return std::string();
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#ifdef _WIN32
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typedef struct _my_blob {
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BLOBHEADER hdr;
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DWORD dwKeySize;
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BYTE rgbKeyData[];
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}my_blob;
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DWORD kbLen = sizeof(my_blob) + secret.size();
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my_blob * kb = (my_blob *)LocalAlloc(LPTR, kbLen);
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kb->hdr.bType = PLAINTEXTKEYBLOB;
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kb->hdr.bVersion = CUR_BLOB_VERSION;
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kb->hdr.reserved = 0;
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kb->hdr.aiKeyAlg = CALG_RC2;
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kb->dwKeySize = secret.size();
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memcpy(&kb->rgbKeyData, secret.c_str(), secret.size());
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HCRYPTPROV hProv = 0;
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HCRYPTKEY hKey = 0;
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HCRYPTHASH hHmacHash = 0;
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BYTE pbHash[32];
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DWORD dwDataLen = 32;
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HMAC_INFO HmacInfo;
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ZeroMemory(&HmacInfo, sizeof(HmacInfo));
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HmacInfo.HashAlgid = CALG_SHA1;
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CryptAcquireContext(&hProv, NULL,
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MS_ENHANCED_PROV, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT | CRYPT_NEWKEYSET);
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CryptImportKey(hProv, (BYTE*)kb, kbLen, 0, CRYPT_IPSEC_HMAC_KEY, &hKey);
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CryptCreateHash(hProv, CALG_HMAC, hKey, 0, &hHmacHash);
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CryptSetHashParam(hHmacHash, HP_HMAC_INFO, (BYTE*)&HmacInfo, 0);
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CryptHashData(hHmacHash, (BYTE*)(src.c_str()), src.size(), 0);
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CryptGetHashParam(hHmacHash, HP_HASHVAL, pbHash, &dwDataLen, 0);
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LocalFree(kb);
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CryptDestroyHash(hHmacHash);
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CryptDestroyKey(hKey);
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CryptReleaseContext(hProv, 0);
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DWORD dlen = 0;
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CryptBinaryToString(pbHash,
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dwDataLen, CRYPT_STRING_BASE64 | CRYPT_STRING_NOCRLF, NULL, &dlen);
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char* dest = new char[dlen];
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CryptBinaryToString(pbHash,
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dwDataLen, CRYPT_STRING_BASE64 | CRYPT_STRING_NOCRLF, dest, &dlen);
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std::string ret = std::string(dest, dlen);
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delete dest;
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return ret;
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#else
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unsigned char md[EVP_MAX_BLOCK_LENGTH];
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unsigned int mdLen = EVP_MAX_BLOCK_LENGTH;
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if (HMAC(EVP_sha1(), secret.c_str(), secret.size(),
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reinterpret_cast<const unsigned char*>(src.c_str()), src.size(),
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md, &mdLen) == nullptr)
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return std::string();
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char encodedData[100];
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EVP_EncodeBlock(reinterpret_cast<unsigned char*>(encodedData), md, mdLen);
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return encodedData;
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#endif
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}
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} // namespace AlibabaCloud
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