Sha1 encoding is a method of encryption that is often used by many programmers. Web sites, desktop applications, etc. In the applications, the passwords of the users are kept encrypted in the database. Sha1 encoding is used to generate these encrypted data. This encryption / encoding process results in unique encrypted data consisting of 40 characters of letters and digits. It requires more processing than resolution of md5 (32 characters) because it has 40 characters. It is not possible to resolve this data.