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Add range safety check to EllipticCurveKey.

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This commit is contained in:
Adam Ierymenko 2013-08-09 20:45:15 -04:00
parent 6c53891b44
commit 9979474f1e
1 changed files with 5 additions and 19 deletions
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24
node/EllipticCurveKey.hpp
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@ -30,6 +30,7 @@
#include <string>
#include <algorithm>
#include <stdexcept>
#include <string.h>
#include "Utils.hpp"
@ -69,39 +70,24 @@ public:
}
EllipticCurveKey(const void *data,unsigned int len)
throw()
throw(std::out_of_range)
{
set(data,len);
}
EllipticCurveKey(const std::string &data)
throw()
throw(std::out_of_range)
{
set(data.data(),data.length());
}
EllipticCurveKey(const EllipticCurveKey &k)
throw()
{
_bytes = k._bytes;
memcpy(_key,k._key,_bytes);
}
inline EllipticCurveKey &operator=(const EllipticCurveKey &k)
throw()
{
_bytes = k._bytes;
memcpy(_key,k._key,_bytes);
return *this;
}
inline void set(const void *data,unsigned int len)
throw()
throw(std::out_of_range)
{
if (len <= ZT_EC_MAX_BYTES) {
_bytes = len;
memcpy(_key,data,len);
} else _bytes = 0;
} else throw std::out_of_range("key too large");
}
inline const unsigned char *data() const throw() { return _key; }