Difference between revisions of "OpenSSL/Cheatsheet"

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=== File encryption ===
=== File encryption ===
Encrypt
Encrypt
openssl enc -aes-256-cbc < file > file.aes
openssl enc -aes-256-cbc < <span class="input"><File></span> > <span class="input"><File></span>.aes
enter aes-256-cbc encryption password:
enter aes-256-cbc encryption password:
Verifying - enter aes-256-cbc encryption password:
Verifying - enter aes-256-cbc encryption password:


Decrypt
Decrypt
openssl enc -d -aes-256-cbc -in file.aes > file
openssl enc -d -aes-256-cbc -in <span class="input"><File></span>.aes > <span class="input"><File></span>
enter aes-256-cbc decryption password:
enter aes-256-cbc decryption password:



Revision as of 00:05, 30 June 2012

Command line shortcuts

Base64

Encode

openssl base64 < file.b64 > file.txt

Decode

openssl base64 -d < file.txt > file.b64

MD5

Checksum a file

openssl md5 file

SHA1

Checksum a file

openssl sha1 file


Generate Passwords

Crypt

openssl passwd <Password>

MD5 (for /etc/passwd and /etc/shadow)

openssl passwd -1

File encryption

Encrypt

openssl enc -aes-256-cbc < <File> > <File>.aes
enter aes-256-cbc encryption password:
Verifying - enter aes-256-cbc encryption password:

Decrypt

openssl enc -d -aes-256-cbc -in <File>.aes > <File> 
enter aes-256-cbc decryption password: