Re: generating sha256 hashes with openssl?
- From: Dave <davidct1209@xxxxxxxxx>
- To: programmingblind@xxxxxxxxxxxxx
- Date: Sun, 22 Aug 2010 17:13:26 -0700
Easy way to find out; does std::string have an overloaded equals
operator and does it perform a copy? You can also try just
constructing a new std::string for the hash and see if that solves the
problem.
On 8/22/10, Littlefield, Tyler <tyler@xxxxxxxxxxxxx> wrote:
> std::string should strcpy though, no?
> ----- Original Message -----
> From: "Dave" <davidct1209@xxxxxxxxx>
> To: <programmingblind@xxxxxxxxxxxxx>
> Sent: Sunday, August 22, 2010 5:42 PM
> Subject: Re: generating sha256 hashes with openssl?
>
>
>> From a cursory glance at the function (and without knowing what
>> exactly failed), it potentially looks like you have a dangling
>> pointer.
>>
>> You assign to your password class member an array of characters which
>> you created on the heap (and then delete).
>>
>> On 8/22/10, Littlefield, Tyler <tyler@xxxxxxxxxxxxx> wrote:
>>> Hello all,
>>> I've been trying to figure this out based on documentation from openssl
>>> (what little there is) and some info from google, but it still seems to
>>> be
>>> failing: Any ideas would be great on where I might be going wrong; here
>>> is
>>> the function
>>> void Player::SetPassword(const std::string &s)
>>> {
>>> SHA256_CTX context;
>>> unsigned char *hash = new unsigned char[SHA256_DIGEST_LENGTH+1];
>>> memset(hash, 0, SHA256_DIGEST_LENGTH+1);
>>>
>>> SHA256_Init(&context);
>>> SHA256_Update(&context, (unsigned char*)s.c_str(), s.length());
>>> SHA256_Final(hash, &context);
>>> _password=(char*)hash;
>>> delete []hash;
>>> }
>>> Thanks,
>>> Ty
>> __________
>> View the list's information and change your settings at
>> //www.freelists.org/list/programmingblind
>>
>
> __________
> View the list's information and change your settings at
> //www.freelists.org/list/programmingblind
>
>
__________
View the list's information and change your settings at
//www.freelists.org/list/programmingblind
Other related posts:
