I like to use OpenSSL to encrypt some files on my hard drive. I cobbled
together the following script that allows me to "transparently" view and
updated OpenSSL-encrypted docs using vim on Linux:
augroup encrypted
au!
" First make sure nothing is written to ~/.viminfo while editing
" an encrypted file.
autocmd BufReadPre,FileReadPre *.des3 set viminfo=
" We don't want a swap file, as it write unencrypted data to disk
autocmd BufReadPre,FileReadPre *.des3 set noswapfile
" Switch to binary mode to read the encrypted file
autocmd BufReadPre,FileReadPre *.des3 set bin
autocmd BufReadPre,FileReadPre *.des3 let ch_save =
&ch|set ch=2
autocmd BufReadPre,FileReadPre *.des3 let shsave=&sh
autocmd BufReadPre,FileReadPre *.des3 let &sh='sh'
autocmd BufReadPre,FileReadPre *.des3 let ch_save =
&ch|set ch=2
autocmd BufReadPost,FileReadPost *.des3 '[,']!openssl enc
-d -des3 2> /dev/null
autocmd BufReadPost,FileReadPost *.des3 let &sh=shsave
" Switch to normal mode for editing
autocmd BufReadPost,FileReadPost *.des3 set nobin
autocmd BufReadPost,FileReadPost *.des3 let &ch =
ch_save|unlet ch_save
autocmd BufReadPost,FileReadPost *.des3 execute ":doautocmd
BufReadPost " . expand("%:r")
" Convert all text to encrypted text before writing
autocmd BufWritePre,FileWritePre *.des3 set bin
autocmd BufWritePre,FileWritePre *.des3 let shsave=&sh
autocmd BufWritePre,FileWritePre *.des3 let &sh='sh'
autocmd BufWritePre,FileWritePre *.des3 '[,']!openssl enc
-e -des3 -salt 2>/dev/null
autocmd BufWritePre,FileWritePre *.des3 let &sh=shsave
" Undo the encryption so we are back in the normal text, directly
after the
" file has been written.
autocmd BufWritePost,FileWritePost *.des3 silent u
autocmd BufWritePost,FileWritePost *.des3 set nobin
augroup END
Basically, when I try to open a file with a "des3" file extension, this
chunk of code is executed.
To get this to work on Windows, I changed the "openssl" lines to the
following:
autocmd BufReadPost,FileReadPost *.des3
'[,']!C:\OpenSSL\bin\openssl.exe enc -d -des3 2> /dev/null
...
autocmd BufWritePre,FileWritePre *.des3
'[,']!C:\OpenSSL\bin\openssl.exe enc -e -des3 -salt 2>/dev/null
Also, I commented out the "let &sh='sh'" lines, since I get the
following value when I execute the ":echo &sh" command:
C:\WINDOWS\system32\cmd.exe
However, when I try to open an encrypted file using this function, I get
the following error:
c:> gvim .\secret.txt.des3
".\secret.txt.des3" [noeol][unix] 10L, 1304C
shell returned 1
10 lines filtered
Press ENTER or type command to continue
...
'sh' is not recognized as an internal or external command,
operable program or batch file.
The weird part is that I commented out all of the lines that explicitly
reference 'sh'.
What am I doing wrong? Is there anyone else who's usuing gpg or openssl
with Vim?
Thanks in advance!
Tom Purl
