Difference between revisions of "OpenSSL/Cheatsheet"

Revision as of 08:50, 10 July 2012

Type	Action	Command	Comment
Base64	Encode	`openssl base64 -in <INPUT>.txt -out <OUTPUT>.b64`
Base64	Decode	`openssl base64 -d -in <INPUT>.b64 -out <OUTPUT>.txt`
MD5	Checksum	`openssl md5 <INPUT>`	Same as `md5sum <INPUT>`
SHA1	Checksum	`openssl sha1 <INPUT>`	Same as `sha1sum <INPUT>`
SHA224	Checksum	`openssl sha224 <INPUT>`	Same as `sha224sum <INPUT>`
SHA256	Checksum	`openssl sha256 <INPUT>`	Same as `sha256sum <INPUT>`
SHA384	Checksum	`openssl sha384 <INPUT>`	Same as `sha384sum <INPUT>`
SHA512	Checksum	`openssl sha512 <INPUT>`	Same as `sha512sum <INPUT>`

Checksum a file

openssl md5 file

Checksum a file

openssl sha1 file

Crypt

openssl passwd <Password>

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

openssl passwd -1 <Password>

Note: Newer versions of Debian use the sha-512 there is a tool called mkpasswd that will create compatible passwords.

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:

@@ Line 1: / Line 1: @@
 == Command line shortcuts ==
-=== Base64 ===
-Encode
- openssl base64 < file.b64 > file.txt
+{| class="wikitable sortable collapsible"
-Decode
+|-
- openssl base64 -d < file.txt > file.b64
+! Type    !! Action !! Command !! Comment
+|-
+| Base64  || Encode || <tt>openssl base64 -in <span class="input"><INPUT>.txt</span> -out <span class="input"><OUTPUT>.b64</span></tt> ||
+|-
+| Base64  || Decode || <tt>openssl base64 -d -in <span class="input"><INPUT>.b64</span> -out <span class="input"><OUTPUT>.txt</span></tt> ||
+|-
+| MD5     || Checksum || <tt>openssl md5 <span class="input"><INPUT></span> </tt> || Same as <tt>md5sum <span class="input"><INPUT></span></tt>
+|-
+| SHA1     || Checksum || <tt>openssl sha1 <span class="input"><INPUT></span> </tt> || Same as <tt>sha1sum <span class="input"><INPUT></span></tt>
+|-
+| SHA224     || Checksum || <tt>openssl sha224 <span class="input"><INPUT></span> </tt> || Same as <tt>sha224sum <span class="input"><INPUT></span></tt>
+|-
+| SHA256     || Checksum || <tt>openssl sha256 <span class="input"><INPUT></span> </tt> || Same as <tt>sha256sum <span class="input"><INPUT></span></tt>
+|-
+| SHA384     || Checksum || <tt>openssl sha384 <span class="input"><INPUT></span> </tt> || Same as <tt>sha384sum <span class="input"><INPUT></span></tt>
+|-
+| SHA512     || Checksum || <tt>openssl sha512 <span class="input"><INPUT></span> </tt> || Same as <tt>sha512sum <span class="input"><INPUT></span></tt>
+|-
+|}
 === MD5 ===