2 * Copyright (c) 2012, 2013 Samsung Electronics Co., Ltd.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #include <openssl/evp.h>
20 #include <openssl/bio.h>
21 #include <openssl/buffer.h>
24 #include "ByteArray.h"
25 #include "OpensslHelper.h"
27 namespace smartcard_service_api
29 bool OpensslHelper::encodeBase64String(const ByteArray &buffer, ByteArray &result, bool newLineChar)
35 if (buffer.size() == 0)
40 b64 = BIO_new(BIO_f_base64());
41 bmem = BIO_new(BIO_s_mem());
43 if (newLineChar == false)
44 BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
46 b64 = BIO_push(b64, bmem);
48 BIO_write(b64, buffer.getBuffer(), buffer.size());
50 BIO_get_mem_ptr(b64, &bptr);
52 result.assign((unsigned char *)bptr->data, bptr->length);
61 bool OpensslHelper::decodeBase64String(const char *buffer, ByteArray &result, bool newLineChar)
65 temp.assign((unsigned char *)buffer, strlen(buffer));
67 return decodeBase64String(temp, result, newLineChar);
70 bool OpensslHelper::decodeBase64String(const ByteArray &buffer, ByteArray &result, bool newLineChar)
73 unsigned int length = 0;
76 if (buffer.getBuffer() == NULL || buffer.size() == 0)
81 length = buffer.size();
83 temp = new char[length];
88 memset(temp, 0, length);
90 b64 = BIO_new(BIO_f_base64());
91 bmem = BIO_new_mem_buf((void *)buffer.getBuffer(), length);
92 if (newLineChar == false)
93 BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
94 bmem = BIO_push(b64, bmem);
96 length = BIO_read(bmem, temp, length);
100 result.assign((unsigned char *)temp, length);
108 _ERR("alloc failed");
114 bool OpensslHelper::digestBuffer(const char *algorithm,
115 const uint8_t *buffer, uint32_t length, ByteArray &result)
117 ByteArray temp(buffer, length);
119 return digestBuffer(algorithm, temp, result);
122 bool OpensslHelper::digestBuffer(const char *algorithm,
123 const ByteArray &buffer, ByteArray &result)
128 if (algorithm == NULL || buffer.size() == 0)
133 OpenSSL_add_all_digests();
135 if ((md = EVP_get_digestbyname(algorithm)) != NULL)
137 uint8_t temp[EVP_MAX_MD_SIZE] = { 0, };
139 unsigned int resultLen = 0;
141 if (EVP_DigestInit(&mdCtx, md) > 0)
143 if (EVP_DigestUpdate(&mdCtx, buffer.getBuffer(), buffer.size()) == 0)
145 _ERR("EVP_DigestUpdate failed");
148 if (EVP_DigestFinal(&mdCtx, temp, &resultLen) > 0 &&
151 result.assign(temp, resultLen);
158 _ERR("EVP_get_digestbyname(\"%s\") returns NULL", algorithm);
164 } /* namespace smartcard_service_api */