本文整理汇总了C++中ustring::getUstring方法的典型用法代码示例。如果您正苦于以下问题：C++ ustring::getUstring方法的具体用法？C++ ustring::getUstring怎么用？C++ ustring::getUstring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ustring的用法示例。
在下文中一共展示了ustring::getUstring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: decode
ustring PubAddr::decode(ustring data, ustring privK)
{
unsigned int p = 0;
ustring IV = data.getUstring(16, p);
unsigned int curveType = data.getInt16(p);
unsigned int Xlen = data.getInt16(p);
ustring X = data.getUstring(Xlen, p);
unsigned int Ylen = data.getInt16(p);
ustring Y = data.getUstring(Ylen, p);
ustring cipherText = data.getUstring(data.size() - (p + 32), p);
ustring MAC = data.getUstring(32, p);
ustring pubK;
pubK += 0x04;
pubK += X;
pubK += Y;
OID CURVE = secp256k1();
AutoSeededRandomPool rng;
ECDH < ECP >::Domain dhA(CURVE), dhB(CURVE);
SecByteBlock privA(privK.c_str(), dhA.PrivateKeyLength());
SecByteBlock pubB(pubK.c_str(), dhB.PublicKeyLength());
if (dhA.AgreedValueLength() != dhB.AgreedValueLength())
{
throw runtime_error("Shared shared size mismatch");
}
SecByteBlock sharedA(dhA.AgreedValueLength()), sharedB(dhB.AgreedValueLength());
if (!dhA.Agree(sharedA, privA, pubB))
throw runtime_error("Failed to reach shared secret (A)");
Integer ssa, ssb;
ssa.Decode(sharedA.BytePtr(), sharedA.SizeInBytes());
uint8_t H[CryptoPP::SHA512::DIGESTSIZE];
CryptoPP::SHA512 hash;
hash.CalculateDigest(H, sharedA.BytePtr(), sharedA.SizeInBytes());
AutoSeededRandomPool prng;
byte key[32];
memcpy(key, H, sizeof(key));
byte Hkey[32];
memcpy(Hkey, &(H[32]), sizeof(Hkey));
byte iv[16];
memcpy(iv, IV.c_str(), IV.size());
string cipher = cipherText.toString(), encoded, recovered;
string HMacPlain;
p = 0;
HMacPlain += data.getString(data.size()-32,p);
string mac;
try
{
HMAC<SHA256> hmac(Hkey, 32);
StringSource s(HMacPlain, true,
new HashFilter(hmac,
new StringSink(mac)
)
);
}
catch (const CryptoPP::Exception& e)
{
throw runtime_error(e.what());
}
if (mac != MAC.toString())
throw runtime_error("mac doesnt match");
try
{
CBC_Mode< AES >::Decryption d;
d.SetKeyWithIV(key, sizeof(key), iv);
// The StreamTransformationFilter removes
// padding as required.
StringSource s(cipher, true,
new StreamTransformationFilter(d,
new StringSink(recovered)
) // StreamTransformationFilter
); // StringSource
}
//.........这里部分代码省略.........