本文整理汇总了C++中BER_Decoder::decode_octet_string_bigint方法的典型用法代码示例。如果您正苦于以下问题：C++ BER_Decoder::decode_octet_string_bigint方法的具体用法？C++ BER_Decoder::decode_octet_string_bigint怎么用？C++ BER_Decoder::decode_octet_string_bigint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BER_Decoder的用法示例。
在下文中一共展示了BER_Decoder::decode_octet_string_bigint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: createAuthenticationKeyFromOpenSSL
bool SshEncryptionFacility::createAuthenticationKeyFromOpenSSL(const QByteArray &privKeyFileContents,
QList<BigInt> &pubKeyParams, QList<BigInt> &allKeyParams, QString &error)
{
try {
bool syntaxOk = true;
QList<QByteArray> lines = privKeyFileContents.split('\n');
while (lines.last().isEmpty())
lines.removeLast();
if (lines.count() < 3) {
syntaxOk = false;
} else if (lines.first() == PrivKeyFileStartLineRsa) {
if (lines.last() != PrivKeyFileEndLineRsa)
syntaxOk = false;
else
m_authKeyAlgoName = SshCapabilities::PubKeyRsa;
} else if (lines.first() == PrivKeyFileStartLineDsa) {
if (lines.last() != PrivKeyFileEndLineDsa)
syntaxOk = false;
else
m_authKeyAlgoName = SshCapabilities::PubKeyDss;
} else if (lines.first() == PrivKeyFileStartLineEcdsa) {
if (lines.last() != PrivKeyFileEndLineEcdsa)
syntaxOk = false;
// m_authKeyAlgoName set below, as we don't know the size yet.
} else {
syntaxOk = false;
}
if (!syntaxOk) {
error = SSH_TR("Unexpected format.");
return false;
}
QByteArray privateKeyBlob;
for (int i = 1; i < lines.size() - 1; ++i)
privateKeyBlob += lines.at(i);
privateKeyBlob = QByteArray::fromBase64(privateKeyBlob);
BER_Decoder decoder(convertByteArray(privateKeyBlob), privateKeyBlob.size());
BER_Decoder sequence = decoder.start_cons(SEQUENCE);
size_t version;
sequence.decode (version);
const size_t expectedVersion = m_authKeyAlgoName.isEmpty() ? 1 : 0;
if (version != expectedVersion) {
error = SSH_TR("Key encoding has version %1, expected %2.")
.arg(version).arg(expectedVersion);
return false;
}
if (m_authKeyAlgoName == SshCapabilities::PubKeyDss) {
BigInt p, q, g, y, x;
sequence.decode (p).decode (q).decode (g).decode (y).decode (x);
DSA_PrivateKey * const dsaKey = new DSA_PrivateKey(m_rng, DL_Group(p, q, g), x);
m_authKey.reset(dsaKey);
pubKeyParams << p << q << g << y;
allKeyParams << pubKeyParams << x;
} else if (m_authKeyAlgoName == SshCapabilities::PubKeyRsa) {
BigInt p, q, e, d, n;
sequence.decode(n).decode(e).decode(d).decode(p).decode(q);
RSA_PrivateKey * const rsaKey = new RSA_PrivateKey(m_rng, p, q, e, d, n);
m_authKey.reset(rsaKey);
pubKeyParams << e << n;
allKeyParams << pubKeyParams << p << q << d;
} else {
BigInt privKey;
sequence.decode_octet_string_bigint(privKey);
m_authKeyAlgoName = SshCapabilities::ecdsaPubKeyAlgoForKeyWidth(
static_cast<int>(privKey.bytes()));
const EC_Group group(SshCapabilities::oid(m_authKeyAlgoName));
auto * const key = new ECDSA_PrivateKey(m_rng, group, privKey);
m_authKey.reset(key);
pubKeyParams << key->public_point().get_affine_x()
<< key->public_point().get_affine_y();
allKeyParams << pubKeyParams << privKey;
}
sequence.discard_remaining();
sequence.verify_end();
} catch (const Exception &ex) {
error = QLatin1String(ex.what());
return false;
} catch (const Decoding_Error &ex) {
error = QLatin1String(ex.what());
return false;
}
return true;
}