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Diffstat (limited to 'manual/cli.rst')
| -rw-r--r-- | manual/cli.rst | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/manual/cli.rst b/manual/cli.rst index ef80933e..50f72bb5 100644 --- a/manual/cli.rst +++ b/manual/cli.rst @@ -1735,8 +1735,10 @@ Encryption --encrypt user-password owner-password key-length [options] -- Either or both of user-password and owner-password may be empty - strings. key-length may be 40, 128, or 256. Encryption options are - terminated by "--" by itself. + strings, though setting either to the empty string enables the file + to be opened and decrpyted without a password. key-length may be + 40, 128, or 256. Encryption options are terminated by "--" by + itself. 40-bit encryption is insecure, as is 128-bit encryption without AES. Use 256-bit encryption unless you have a specific reason to @@ -1802,8 +1804,10 @@ To create an encrypted file, use --encrypt user-password owner-password key-length [options] -- Either or both of :samp:`{user-password}` and :samp:`{owner-password}` -may be empty strings. :samp:`{key-length}` may be ``40``, ``128``, or -``256``. Encryption options are terminated by ``--`` by itself. +may be empty strings, though setting either to the empty string +enables the file to be opened and decrpyted without a password.. +:samp:`{key-length}` may be ``40``, ``128``, or ``256``. Encryption +options are terminated by ``--`` by itself. 40-bit encryption is insecure, as is 128-bit encryption without AES. Use 256-bit encryption unless you have a specific reason to use an |