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| author | EuAndreh <eu@euandre.org> | 2023-09-19 04:47:43 -0300 |
|---|---|---|
| committer | EuAndreh <eu@euandre.org> | 2023-09-19 04:47:47 -0300 |
| commit | 6d3fb5720f45ddd114dad237573e055a303fada5 (patch) | |
| tree | e63f755b08643b3888e0284d6ec1893717d5a999 /bin | |
| parent | etc/nix/configuration.nix: run nixfmt(1) (diff) | |
| download | dotfiles-6d3fb5720f45ddd114dad237573e055a303fada5.tar.gz dotfiles-6d3fb5720f45ddd114dad237573e055a303fada5.tar.xz | |
bin/{uuid,gen-password}: Use /dev/urandom over /dev/random
As Thomas Pornin eloquently put it[0]:
> use /dev/urandom and be happy; use /dev/random and be sorry
[0]: https://security.stackexchange.com/questions/3936/is-a-rand-from-dev-urandom-secure-for-a-login-key
Diffstat (limited to 'bin')
| -rwxr-xr-x | bin/gen-password | 2 | ||||
| -rwxr-xr-x | bin/uuid | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/bin/gen-password b/bin/gen-password index 758845c..244d971 100755 --- a/bin/gen-password +++ b/bin/gen-password @@ -69,6 +69,6 @@ shift $((OPTIND - 1)) LENGTH="${1:-999}" -tr -cd '[:alnum:]' < /dev/random | +tr -cd '[:alnum:]' < /dev/urandom | fold -w "$LENGTH" | head -n1 @@ -17,7 +17,7 @@ help() { -h, --help show this message - Generate UUID from /dev/random. + Generate UUID from /dev/urandom. Examples: @@ -59,5 +59,5 @@ while getopts 'h' flag; do done shift $((OPTIND - 1)) -od -xN20 /dev/random | +od -xN20 /dev/urandom | awk 'NR == 1 { OFS="-"; print $2$3,$4,$5,$6,$7$8$9; exit }' |