How to Use DM-Crypt to encrypt a Linux File System?
Readers often ask us how to implement a file system encryption method for Linux. Before discussing this topic in depth, I would like to clarify two points:
First, it is difficult to find enough
Use crypt () in PHP to implement user authentication. read the instructions in PHP to use crypt () for user authentication. if you do not want to develop new encryption algorithms in PHP applications, you can also use the crypt () function provided
There are many encryption functions in php functions, one of which can implement data encryption functions is called the crypt () function. The crypt () function uses a one-way algorithm without corresponding decryption functions. It returns a
If you do not want to develop new encryption algorithms for PHP applications, you can use the crypt () function provided by PHP to complete one-way encryption ()
Anyone who has experience using a non-Windows platform may be familiar with crypt ().
Understanding crypt ()Anyone who has experience using a non-Windows platform may be familiar with crypt (). This function is called one-way encryption and can encrypt some plain codes, however, the password cannot be converted to the original
If you do not want to develop new encryption algorithms for PHP applications, you can use the crypt () function provided by PHP to complete one-way encryption ()
Anyone who has experience using a non-Windows platform may be familiar with crypt ().
If you do not want to develop new encryption algorithms for PHP applications, you can use the crypt () function provided by PHP to complete one-way encryption ()
Anyone who has experience using a non-Windows platform may be familiar with crypt ().
Before introducing the encryption function, let's first introduce the principle of data encryption: it is to process the original plaintext file or data according to a certain algorithm to make it a piece of unreadable code, it is usually called
The irreversible cryptographic functions are: MD5 (), Crypt ()
MD5 () is used to calculate MD5. The syntax is: string MD5 (string str);
Crypt () encrypts the string with the UNIX standard cryptographic DES module. This is a one-way cryptographic
The irreversible cryptographic functions are: MD5 (), Crypt ()
MD5 () is used to calculate MD5. The syntax is: string MD5 (string str);
Crypt () encrypts the string with the UNIX standard cryptographic DES module. This is a one-way cryptographic
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