本文整理汇总了C++中TrustDomain::CheckRSAPublicKeyModulusSizeInBits方法的典型用法代码示例。如果您正苦于以下问题：C++ TrustDomain::CheckRSAPublicKeyModulusSizeInBits方法的具体用法？C++ TrustDomain::CheckRSAPublicKeyModulusSizeInBits怎么用？C++ TrustDomain::CheckRSAPublicKeyModulusSizeInBits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TrustDomain的用法示例。
在下文中一共展示了TrustDomain::CheckRSAPublicKeyModulusSizeInBits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: subjectPublicKeyReader
//.........这里部分代码省略.........
static const uint8_t secp521r1[] = {
0x2b, 0x81, 0x04, 0x00, 0x23
};
// Matching is attempted based on a rough estimate of the commonality of the
// elliptic curve, to minimize the number of MatchRest calls.
NamedCurve curve;
unsigned int bits;
if (namedCurveOIDValue.MatchRest(secp256r1)) {
curve = NamedCurve::secp256r1;
bits = 256;
} else if (namedCurveOIDValue.MatchRest(secp384r1)) {
curve = NamedCurve::secp384r1;
bits = 384;
} else if (namedCurveOIDValue.MatchRest(secp521r1)) {
curve = NamedCurve::secp521r1;
bits = 521;
} else {
return Result::ERROR_UNSUPPORTED_ELLIPTIC_CURVE;
}
rv = trustDomain.CheckECDSACurveIsAcceptable(endEntityOrCA, curve);
if (rv != Success) {
return rv;
}
// RFC 5480 Section 2.2 says that the first octet will be 0x04 to indicate
// an uncompressed point, which is the only encoding we support.
uint8_t compressedOrUncompressed;
rv = subjectPublicKeyReader.Read(compressedOrUncompressed);
if (rv != Success) {
return rv;
}
if (compressedOrUncompressed != 0x04) {
return Result::ERROR_UNSUPPORTED_EC_POINT_FORM;
}
// The point is encoded as two raw (not DER-encoded) integers, each padded
// to the bit length (rounded up to the nearest byte).
Input point;
rv = subjectPublicKeyReader.SkipToEnd(point);
if (rv != Success) {
return rv;
}
if (point.GetLength() != ((bits + 7) / 8u) * 2u) {
return Result::ERROR_BAD_DER;
}
// XXX: We defer the mathematical verification of the validity of the point
// until signature verification. This means that if we never verify a
// signature, we'll never fully check whether the public key is valid.
} else if (algorithmOID.MatchRest(rsaEncryption)) {
// RFC 3279 Section 2.3.1 says "The parameters field MUST have ASN.1 type
// NULL for this algorithm identifier."
rv = der::ExpectTagAndEmptyValue(algorithm, der::NULLTag);
if (rv != Success) {
return rv;
}
// RSAPublicKey :: = SEQUENCE{
// modulus INTEGER, --n
// publicExponent INTEGER } --e
rv = der::Nested(subjectPublicKeyReader, der::SEQUENCE,
[&trustDomain, endEntityOrCA](Reader& r) {
Input modulus;
Input::size_type modulusSignificantBytes;
Result rv = der::PositiveInteger(r, modulus, &modulusSignificantBytes);
if (rv != Success) {
return rv;
}
// XXX: Should we do additional checks of the modulus?
rv = trustDomain.CheckRSAPublicKeyModulusSizeInBits(
endEntityOrCA, modulusSignificantBytes * 8u);
if (rv != Success) {
return rv;
}
// XXX: We don't allow the TrustDomain to validate the exponent.
// XXX: We don't do our own sanity checking of the exponent.
Input exponent;
return der::PositiveInteger(r, exponent);
});
if (rv != Success) {
return rv;
}
} else {
return Result::ERROR_UNSUPPORTED_KEYALG;
}
rv = der::End(algorithm);
if (rv != Success) {
return rv;
}
rv = der::End(subjectPublicKeyReader);
if (rv != Success) {
return rv;
}
return Success;
}