1 /*
2 * Copyright 1999-2019 Alibaba Cloud All rights reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <alibabacloud/core/HmacSha1Signer.h>
18 #ifdef _WIN32
19 #include <wincrypt.h>
20 #include <windows.h>
21 #elif defined(USE_CRYPTO_MBEDTLS)
22 #include "mbedtls/compat-1.3.h"
23 #include "mbedtls/sha1.h"
24 #include "mbedtls/base64.h"
25 #include "mbedtls/md.h"
26 #else
27 #include <openssl/hmac.h>
28 #endif
29
30 namespace AlibabaCloud {
31
HmacSha1Signer()32 HmacSha1Signer::HmacSha1Signer() : Signer(HmacSha1, "HMAC-SHA1", "1.0") {}
33
~HmacSha1Signer()34 HmacSha1Signer::~HmacSha1Signer() {}
35
generate(const std::string & src,const std::string & secret) const36 std::string HmacSha1Signer::generate(const std::string &src,
37 const std::string &secret) const {
38 if (src.empty())
39 return std::string();
40
41 #ifdef _WIN32
42 typedef struct _my_blob {
43 BLOBHEADER hdr;
44 DWORD dwKeySize;
45 BYTE rgbKeyData[];
46 } my_blob;
47
48 DWORD kbLen = sizeof(my_blob) + secret.size();
49 my_blob *kb = (my_blob *)LocalAlloc(LPTR, kbLen);
50 kb->hdr.bType = PLAINTEXTKEYBLOB;
51 kb->hdr.bVersion = CUR_BLOB_VERSION;
52 kb->hdr.reserved = 0;
53 kb->hdr.aiKeyAlg = CALG_RC2;
54 kb->dwKeySize = secret.size();
55 memcpy(&kb->rgbKeyData, secret.c_str(), secret.size());
56
57 HCRYPTPROV hProv = 0;
58 HCRYPTKEY hKey = 0;
59 HCRYPTHASH hHmacHash = 0;
60 BYTE pbHash[32];
61 DWORD dwDataLen = 32;
62 HMAC_INFO HmacInfo;
63 ZeroMemory(&HmacInfo, sizeof(HmacInfo));
64 HmacInfo.HashAlgid = CALG_SHA1;
65
66 CryptAcquireContext(&hProv, NULL, MS_ENHANCED_PROV, PROV_RSA_FULL,
67 CRYPT_VERIFYCONTEXT | CRYPT_NEWKEYSET);
68 CryptImportKey(hProv, (BYTE *)kb, kbLen, 0, CRYPT_IPSEC_HMAC_KEY, &hKey);
69 CryptCreateHash(hProv, CALG_HMAC, hKey, 0, &hHmacHash);
70 CryptSetHashParam(hHmacHash, HP_HMAC_INFO, (BYTE *)&HmacInfo, 0);
71 CryptHashData(hHmacHash, (BYTE *)(src.c_str()), src.size(), 0);
72 CryptGetHashParam(hHmacHash, HP_HASHVAL, pbHash, &dwDataLen, 0);
73
74 LocalFree(kb);
75 CryptDestroyHash(hHmacHash);
76 CryptDestroyKey(hKey);
77 CryptReleaseContext(hProv, 0);
78
79 DWORD dlen = 0;
80 CryptBinaryToString(pbHash, dwDataLen,
81 CRYPT_STRING_BASE64 | CRYPT_STRING_NOCRLF, NULL, &dlen);
82 char *dest = new char[dlen];
83 CryptBinaryToString(pbHash, dwDataLen,
84 CRYPT_STRING_BASE64 | CRYPT_STRING_NOCRLF, dest, &dlen);
85
86 std::string ret = std::string(dest, dlen);
87 delete dest;
88 return ret;
89
90 #elif defined(USE_CRYPTO_MBEDTLS)
91 unsigned char md[20];
92 unsigned int mdLen = 20;
93 size_t olen = 0;
94 mbedtls_md_hmac(mbedtls_md_info_from_type(MBEDTLS_MD_SHA1),
95 reinterpret_cast<const unsigned char*>(secret.c_str()),static_cast<int>(secret.size()),
96 reinterpret_cast<const unsigned char*>(src.c_str()), src.size(),
97 (unsigned char *)md);
98 char encodedData[100];
99 mbedtls_base64_encode((unsigned char*)encodedData, sizeof(encodedData), &olen, md, mdLen);
100
101 return encodedData;
102 #else
103 unsigned char md[EVP_MAX_BLOCK_LENGTH];
104 unsigned int mdLen = EVP_MAX_BLOCK_LENGTH;
105
106 if (HMAC(EVP_sha1(), secret.c_str(), secret.size(),
107 reinterpret_cast<const unsigned char *>(src.c_str()), src.size(), md,
108 &mdLen) == nullptr)
109 return std::string();
110
111 char encodedData[100];
112 EVP_EncodeBlock(reinterpret_cast<unsigned char *>(encodedData), md, mdLen);
113 return encodedData;
114 #endif
115 }
116
117 } // namespace AlibabaCloud
118