public MD(MDType type)
{
EVP_MD * md = null; // Statically allocated (MT), don't free
EVP_MD_CTX *handle = null;
if ((md = MD.GetMD(type)) == null)
{
throw new EVPException();
}
if ((handle = _MD.EVP_MD_CTX_create()) == null)
{
goto Bailout;
}
if (_MD.EVP_DigestInit_ex(handle, md, IntPtr.Zero) == 0)
{
goto Bailout;
}
this._handle = handle;
this._type = type;
return;
Bailout:
if (handle != null)
{
_MD.EVP_MD_CTX_destroy(handle);
}
throw new EVPException();
}
public HMAC(MDType type)
{
this._type = type;
this._md = MD.GetMD(this._type);
if (this._md == null)
{
throw new EVPException();
}
}
public HMAC(MDType type)
{
this._type = type;
this._md = MD.GetMD(this._type);
if (this._md == null)
throw new EVPException();
}
public static extern IntPtr HMAC
(EVP_MD *md, byte[] key, int klen, byte[] data, int len, byte[] aout, ref int olen);
public static extern int EVP_MD_size(EVP_MD *handle);
public static extern int EVP_DigestInit_ex(EVP_MD_CTX *handle, EVP_MD *type, IntPtr engine);
