MD5 Hash Online Generador

hi everyone my Company ordered me to create program for Time attendance we have program working but this application for IT company this company finished and we have no connection to them for technical support so I programmed program like that the problem I faced is password login it is saved in database encrypted when I log as user i should log for encrypted password i look for function used to encrypt password in .net reflector after I open IT company application but i do not understand strings I look for Strings I could not understand simply when i enter password like 0 the encrypted password will be 8 and here is the function used for IT company application I hope to help me . and this after function called public static string CodingPasswordFun(string OldStr)

enter codestring str2;string str3;string str4;string str5;string str6;int num2;int num3 = Strings.Len(OldStr);for (num2 = 1; num2 <= num3; num2++){    str5 = Strings.Mid(OldStr, num2, 1);    str2 = str2 + str5;    if (num2 == 2)    {        str2 = str2 + "A";    }    else if (num2 == 4)    {        str2 = str2 + "D";    }    else if (num2 == 6)    {        str2 = str2 + "E";    }    else if (num2 == 8)    {        str2 = str2 + "L";    }}int num4 = Strings.Len(str2);for (int i = 1; i <= num4; i++){    str5 = Strings.Mid(str2, i, 1);    str6 = str6 + str5;    switch (i)    {        case 3:            str6 = str6 + "B";            break;        case 5:            str6 = str6 + "E";            break;        case 7:            str6 = str6 + "T";            break;        case 9:            str6 = str6 + "A";            break;    }}int num5 = Strings.Len(str6);for (num2 = 1; num2 <= num5; num2++){    string str8 = Strings.Mid(str6, num2, 1);    str4 = str4 + Conversions.ToString(Strings.Asc(str8));}int num6 = Strings.Len(str4);for (num2 = 1; num2 <= num6; num2++){    if ((num2 % 2) == 0)    {        string str7 = Strings.Mid(str4, num2, 2);        if ((((Conversions.ToDouble(str7) >= 65.0) & (Conversions.ToDouble(str7) <= 90.0)) | ((Conversions.ToDouble(str7) >= 97.0) & (Conversions.ToDouble(str7) <= 122.0))) | (Conversions.ToDouble(str7) == 45.0))        {            str3 = str3 + Conversions.ToString(Strings.Chr(Conversions.ToInteger(str7)));        }        else        {            str3 = str3 + str7;        }    }}return str3;

here

I am calculating a MD5 sum for a file to compare it with values supplied in a text file. I use the following line to create the checksum:

cksum = File.open(File.join(File.dirname(path), file),'rb') do |f|   MD5.hexdigest(f.read)end

Every once in a while I get one that does not match but running the md5 manually at the system level shows the file has the correct MD5.

Does anyone see any issue with the process I am using to calculate the MD5 value or have any idea why they sometimes do not match when calculated by this ruby method?

My project need to use mksqashfs pack something to an image,when the content changes, I need to replace image file with the new one.

Before using sqashfs,I 'v used tarball+md5sum. Content changes ,md5 changes.But,mksquashfs export image file changes every time,even the content is the same.

I'm walking through all the parameter of mksquashfs ,try to find the problem without luck right now.

I'm currently programming a video sharing site. For the uploads, I'm using PHP. I noticed that when I upload a video, S3 takes an MD5 hash of the file. I'm wondering if S3 does any deduplication. I uploaded several of the same file and didn't see anything in there indicating S3 knew they were the same or that it was doing anything about it at least.

Should I implement this on my own? I have a MySQL database where I'm storing all the video info. I could take a hash of all the videos and serve up previously uploaded files if they're the same. I could simply do md5(tmp-file-here). This would seem appropriate since S3 is already using md5. However, md5 is slow when compared to something optimized for such things such as BLAKE2. Should I do this and what would be the best approach?

I want to ask how to change password for logged in user,I can change the password when I enter password that matches anyone in database.For just example, user have "admin" password, I just enter the current password,new password and confirm password.

Current password: adminNew Password: newadminCurrent Password: new admin

And also I don't know how to change the password if the passworduses md5(). I hope you can help me, I am a newbie on Codeigniter.I search answers but I really don't understand it so I want to comment but it's required 50 reputation so I post new question.

Here's my code :

Controller

    public function update(){    $this->form_validation->set_rules('password', 'Current Password', 'required|alpha_numeric|min_length[6]|max_length[20]');    $this->form_validation->set_rules('newpass', 'New Password', 'required|alpha_numeric|min_length[6]|max_length[20]');    $this->form_validation->set_rules('confpassword', 'Confirm Password', 'required|alpha_numeric|min_length[6]|max_length[20]');    if($this->form_validation->run()){        $cur_password = $this->input->post('password');        $new_password = $this->input->post('newpass');        $conf_password = $this->input->post('confpassword');        $this->load->model('queries');        $userid = '1';        $passwd = $this->queries->getCurrPassword($userid);        if($passwd->password == $cur_password){            if($new_password == $conf_password){                if($this->queries->updatePassword($new_password, $userid)){                    echo 'Password updated successfully';                }                else{                    echo 'Failed to update password';                }            }            else{                echo 'New password & Confirm password is not matching';            }        }        else{            echo'Sorry! Current password is not matching';    }}else{    echo validation_errors();}

model

 public function getCurrPassword($userid){  $query = $this->db->where(['id'=>$userid])                    ->get('users');    if($query->num_rows() > 0){        return $query->row();    } }  public function updatePassword($new_password, $userid){  $data = array(      'password'=> $new_password      );      return $this->db->where('id', $userid)                      ->update('users', $data); }