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-rw-r--r--README.md3
1 files changed, 2 insertions, 1 deletions
diff --git a/README.md b/README.md
index 2ea0e8d..a7e6a35 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,8 @@ encpipe -d -p password -i inputfile -o outputfile
`-i` and `-o` can be set to `-` or omitted to read/write from the
standard input/output.
-`-P password_file` can be used to read the password from a file.
+`-P password_file` can be used to read the password, or an arbitrary
+long key (that doesn't have to be text) from a file.
If you don't feel inspired, `-G` prints a random password.