86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
|
#include <vanetza/asn1/security_profile.hpp>
|
||
|
|
#include VANETZA_ASN1_SECURITY_HEADER(EccP256CurvePoint.h)
|
||
|
|
#include <vanetza/security/v3/asn1_conversions.hpp>
|
||
|
|
#include <boost/variant/static_visitor.hpp>
|
||
|
|
#include <algorithm>
|
||
|
|
#include <cstring>
|
||
|
|
|
||
|
|
namespace vanetza
|
||
|
|
{
|
||
|
|
namespace security
|
||
|
|
{
|
||
|
|
namespace v3
|
||
|
|
{
|
||
|
|
|
||
|
|
HashedId8 convert(const Vanetza_Security_HashedId8_t& in)
|
||
|
|
{
|
||
|
|
HashedId8 out;
|
||
|
|
std::memcpy(out.data(), in.buf, std::min(out.size(), in.size));
|
||
|
|
return out;
|
||
|
|
}
|
||
|
|
|
||
|
|
void assign(OCTET_STRING_t* dst, const ByteBuffer& src)
|
||
|
|
{
|
||
|
|
OCTET_STRING_fromBuf(dst, reinterpret_cast<const char*>(src.data()), src.size());
|
||
|
|
}
|
||
|
|
|
||
|
|
asn1::EccP256CurvePoint to_asn1(const EccPoint& point)
|
||
|
|
{
|
||
|
|
struct visitor : public boost::static_visitor<asn1::EccP256CurvePoint>
|
||
|
|
{
|
||
|
|
asn1::EccP256CurvePoint operator()(const X_Coordinate_Only& x_only) const
|
||
|
|
{
|
||
|
|
asn1::EccP256CurvePoint result = {};
|
||
|
|
result.present = Vanetza_Security_EccP256CurvePoint_PR_x_only;
|
||
|
|
assign(&result.choice.x_only, x_only.x);
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
asn1::EccP256CurvePoint operator()(const Compressed_Lsb_Y_0& y0) const
|
||
|
|
{
|
||
|
|
asn1::EccP256CurvePoint result = {};
|
||
|
|
result.present = Vanetza_Security_EccP256CurvePoint_PR_compressed_y_0;
|
||
|
|
assign(&result.choice.compressed_y_0, y0.x);
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
asn1::EccP256CurvePoint operator()(const Compressed_Lsb_Y_1& y1) const
|
||
|
|
{
|
||
|
|
asn1::EccP256CurvePoint result = {};
|
||
|
|
result.present = Vanetza_Security_EccP256CurvePoint_PR_compressed_y_1;
|
||
|
|
assign(&result.choice.compressed_y_1, y1.x);
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
asn1::EccP256CurvePoint operator()(const Uncompressed& unc) const
|
||
|
|
{
|
||
|
|
asn1::EccP256CurvePoint result = {};
|
||
|
|
result.present = Vanetza_Security_EccP256CurvePoint_PR_uncompressedP256;
|
||
|
|
assign(&result.choice.uncompressedP256.x, unc.x);
|
||
|
|
assign(&result.choice.uncompressedP256.y, unc.y);
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
return boost::apply_visitor(visitor(), point);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace v3
|
||
|
|
|
||
|
|
HashedId8 create_hashed_id8(const Vanetza_Security_HashedId8_t& in)
|
||
|
|
{
|
||
|
|
HashedId8 out;
|
||
|
|
std::memcpy(out.data(), in.buf, std::min(out.size(), in.size));
|
||
|
|
return out;
|
||
|
|
}
|
||
|
|
|
||
|
|
HashedId3 create_hashed_id3(const Vanetza_Security_HashedId3_t& in)
|
||
|
|
{
|
||
|
|
HashedId3 out;
|
||
|
|
std::memcpy(out.data(), in.buf, std::min(out.size(), in.size));
|
||
|
|
return out;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace security
|
||
|
|
} // namespace vanetza
|