passwd − compute password hashes
openssl passwd [−crypt] [−1] [−apr1] [−salt string] [−in file] [−stdin] [−noverify] [−quiet] [−table] {password}
The passwd command computes the hash of a password typed at run-time or the hash of each password in a list. The password list is taken from the named file for option −in file, from stdin for option −stdin, or from the command line, or from the terminal otherwise. The Unix standard algorithm crypt and the MD5−based BSD password algorithm 1 and its Apache variant apr1 are available.
−crypt
Use the crypt algorithm (default).
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−1 |
Use the MD5 based BSD password algorithm 1. |
−apr1
Use the apr1 algorithm (Apache variant of the BSD algorithm).
−salt string
Use the specified salt. When reading a password from the terminal, this implies −noverify.
−in file
Read passwords from file.
−stdin
Read passwords from stdin.
−noverify
Don’t verify when reading a password from the terminal.
−quiet
Don’t output warnings when passwords given at the command line are truncated.
−table
In the output list, prepend the cleartext password and a TAB character to each password hash.
openssl passwd −crypt −salt xx password prints xxj31ZMTZzkVA.
openssl passwd −1 −salt xxxxxxxx password prints $1$xxxxxxxx$UYCIxa628.9qXjpQCjM4a..
openssl passwd −apr1 −salt xxxxxxxx password prints $apr1$xxxxxxxx$dxHfLAsjHkDRmG83UXe8K0.