Online Reverse Hash Lookup tries to reveal the original
plaintext
messages from specified hash values of several cryptographic hash
functions.
Online Reverse Hash Lookup works with several online databases containing
millions of hash values as well as engines using
rainbow tables that can retrieve the
plaintext messages in more sophisticated way.
Cryptographic hash functions are commonly used to store passwords in online
systems. In case the password database was stolen by a malicious attacker
and the passwords were stored in the raw format without further processing,
the attacker would know all passwords immediately. However, when a
cryptographic hash functions is used to transform a password into a hash
value, which is then stored in the database instead of the password itself,
the passwords may remain unknown even if the database is stolen because it
is considered
difficult
to retrieve the plaintext from a hash value of cryptographic hash
function. Yet still, the authentication process of users of the system with
the hashed passwords is as easy as the one with passwords stored in the raw
format.
Cryptographic hash functions are also used for
data integrity verification,
fingerprinting,
and various other purposes, usually related to computer security and cryptography.
Use the Hash function field to select a type of hash value you
want to crack. In the Hash values textarea, write each input
hash value on a separate line. Then click the "Reverse!" button to start
Online Reverse Hash Lookup.
You can enter up to 5 hash values at once into the Hash values field.
