Secret 5 decrypt online

If you are interested into md5 collisions and want to know more, you can check this link. It is now better to use hash functions such as Sha, , bcrypt, scrypt, whirlpool for instance. If you still want to use md5 to encrypt passwords on your website, good thing would be to use a "salt" to make the hash more difficult to crack via bruteforce and rainbow tables. A salt is simply a caracters string that you add to an user password to make it less breakable.

For instance, say we are using the password "password" good idea. It will be obviously really easy to break. Please note that it is preferable to use random generated strings as salt, if you just use the same string for each password it will be far too easy to break. You could also be creative and split the salt in two, then add a part at the beginning of the password and the other part at the end. Or we may just flat out break into some Cisco device configured with default credentials.

The first thing attackers do after they gain access to a Cisco device is that they pull current configuration from the device either by running show running or show running-config command. The attackers are typically looking for sensitive information such as stored credentials, SNMP community strings, network configuration details and so on.

Credentials are naturally the most interesting thing to look for and over the years Cisco has developed number of different methods for storing passwords in their devices. Hence the name Cisco password type. In the following sections, we will go through all these password types by order from the least secure most easiest to crack to the most secure hardest to crack :.

Disclaimer: All examples and speed measurements in this article were produced on a standard modern laptop equipped with a GPU and 4 CPU cores. Cisco password type 0 is basically clear text password. There is no encryption nor obfuscation. It is the oldest and the most insecure method of storing passwords in Cisco devices. It should never be used. As you can see, there is really nothing to crack or decrypt. We can clearly see that the admin user has a password of [email protected].

The algorithm is reversible and thus it can be deciphered instantly into a plain text without any need for cracking. There are number of freely available tools for decrypting type 7 password.

Here are some examples:. For instance, to decrypt the above type 7 password using Ciscot7 Python script, simply run:. We can instantly see that the password is [email protected]. There are also numerous decrypters online for this type of password. But we strongly discourage using any them in order to avoid disclosing sensitive customer information credentials to a third party. But due to an implementation issue , it somehow ended up being a mere single iteration of SHA without salt.

To crack it, we have to first convert it to the following john friendly format and save it in a file:. Note that since we have 4 CPU cores, we can run john in 4 instances using --fork parameter:. If you want to convert your config to display them as 7 you need to enter the service password-encryption command;. If Type 7 passwords are so weak, how do I use Type 5 passwords? When creating accounts use the secret command like so;.

Feed openssl the salt, and a piece of the hash see the example above , and it will run through, grep the wordlist until it finds a match, where it spits out the decrypted password an the original hash like so;.

Note : The limitation here is the password has to be in the wordlist.