Solaris encrypt/decrypt similiar on Linux?

Question

Wondering if someone can help me with they way to use openssl or something similar. In a solaris box normally I'm doing this:

decrypt -a aes -k my.key -i mypasswd.aes.cr > /tmp/tmp.file

then modify some passwords inside the tmp file, and proceed to encrypt it again

encrypt -a aes -k my.key -i /tmp/tmp.file -o mypasswd.aes.cr

But in Linux i dont have that solaris commands, so is there a way to do the same thing on linux with same files? I tried with openssl and seems to have a lot of options and parameters. i tried with few of them, like following command:

bash-4.2$ openssl  aes-128-cbc -d  -pass file:my.key -in mypasswd.aes.cr -out /tmp/tmp.file
bad magic number
bash-4.2$

I don't know what option i need to use, too many!

NOTE:seems like mypasswd.aes.cr is based on default aes 128bits encryption

thanks in advance!

Answer 1

If you have access to openssl, you can use the OpenSSL enc option to encrypt/decrypt files.

For example:

$ openssl enc -bf -a -in data.txt -out data.enc
enter bf-cbc encryption password:
Verifying - enter bf-cbc encryption password:

will encrypt data.txt using Blowfish CBC and store the encrypted data in data.enc in base-64 encoded format.

You can use a key file with the -kfile option:

$ openssl enc -aes128 -a -in data.txt -out data.enc -kfile my.key

The encrypted data may or may not be compatible with the Solaris encrypt/decrypt commands. You'll have to test compatibility.

You can enter

$ openssl enc ciphers

to get a list of ciphers your version of OpenSSL supports.

Note that storing your key file with the data it's protecting isn't very safe.