本文整理汇总了C++中cryptopp::Integer::BERDecode方法的典型用法代码示例。如果您正苦于以下问题：C++ Integer::BERDecode方法的具体用法？C++ Integer::BERDecode怎么用？C++ Integer::BERDecode使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类cryptopp::Integer的用法示例。
在下文中一共展示了Integer::BERDecode方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: LoadCertificate
void Reseeder::LoadCertificate (const std::string& filename)
{
std::ifstream s(filename, std::ifstream::binary);
if (s.is_open ())
{
s.seekg (0, std::ios::end);
size_t len = s.tellg ();
s.seekg (0, std::ios::beg);
char buf[2048];
s.read (buf, len);
std::string cert (buf, len);
// assume file in pem format
auto pos1 = cert.find (CERTIFICATE_HEADER);
auto pos2 = cert.find (CERTIFICATE_FOOTER);
if (pos1 == std::string::npos || pos2 == std::string::npos)
{
LogPrint (eLogError, "Malformed certificate file");
return;
}
pos1 += strlen (CERTIFICATE_HEADER);
pos2 -= pos1;
std::string base64 = cert.substr (pos1, pos2);
CryptoPP::ByteQueue queue;
CryptoPP::Base64Decoder decoder; // regular base64 rather than I2P
decoder.Attach (new CryptoPP::Redirector (queue));
decoder.Put ((const uint8_t *)base64.data(), base64.length());
decoder.MessageEnd ();
// extract X.509
CryptoPP::BERSequenceDecoder x509Cert (queue);
CryptoPP::BERSequenceDecoder tbsCert (x509Cert);
// version
uint32_t ver;
CryptoPP::BERGeneralDecoder context (tbsCert, 0xa0);
CryptoPP::BERDecodeUnsigned<uint32_t>(context, ver, CryptoPP::INTEGER);
LogPrint (eLogInfo, ver);
// serial
CryptoPP::Integer serial;
serial.BERDecode(tbsCert);
// signature
CryptoPP::BERSequenceDecoder signature (tbsCert);
signature.SkipAll();
// issuer
CryptoPP::BERSequenceDecoder issuer (tbsCert);
issuer.SkipAll();
// validity
CryptoPP::BERSequenceDecoder validity (tbsCert);
validity.SkipAll();
// subject
CryptoPP::BERSequenceDecoder subject (tbsCert);
subject.SkipAll();
// public key
CryptoPP::BERSequenceDecoder publicKey (tbsCert);
publicKey.SkipAll();
tbsCert.SkipAll();
x509Cert.SkipAll();
}
else
LogPrint (eLogError, "Can't open certificate file ", filename);
}