Simple usage of Linux OpenSSL

use OpenSSL to encrypt user data

OpenSSL paswd can encrypt user's password

-1 means encryption using MD5

-SALT specifies a random number, although this random number is statically specified.

Generate random numbers

Two equals signs in output content are Base64 encoded fixed format

-base64 indicates that the generated random number is displayed using the Base64 encoded format

-hex indicates that the generated random number is displayed in hexadecimal format

10 indicates a 10-byte random number is generated

Encrypt user passwords with random numbers generated automatically by the system

Computes the hash value of a file

OpenSSL DGST-SHA1 =sha1sum

Encrypting files

-in files that need to be processed

-out Output Files

-pass Encryption Password

-e Encryption command Purpose

-D Decryption

-a encoded format The default output file content is displayed by the BASE64 encoded format

adding random numbers when-salt encryption

Now, decrypt it.

Look at the decrypted file contents.

Note: The decrypted file permissions may not be consistent with the original file.

Simple usage of Linux OpenSSL