public int GenerateCode(SecurityToken securityToken, string modifier = null)
{
ulong currentTimeStepNumber = this.GetCurrentTimeStepNumber();
using (HMACSHA1 hmacshA1 = new HMACSHA1(securityToken.GetDataNoClone()))
{
return this.ComputeTotp(hmacshA1, currentTimeStepNumber, modifier);
}
}
public bool ValidateCode(SecurityToken securityToken, int code, string modifier = null)
{
var codeIsValid = false;
ulong currentTimeStepNumber = this.GetCurrentTimeStepNumber();
using (HMACSHA1 hmacshA1 = new HMACSHA1(securityToken.GetDataNoClone()))
{
for (int index = -2; index <= 2; ++index)
{
if (this.ComputeTotp(hmacshA1, currentTimeStepNumber + (ulong)index, modifier) == code)
{
codeIsValid = true;
break;
}
}
}
return codeIsValid;
}