| commit | 7ddab115e18334dafbebeba5f21c4c80fddfdf59 | [log] [tgz] |
|---|---|---|
| author | Heinz N. Gies <heinz@licenser.net> | Tue Aug 15 10:58:39 2017 +0200 |
| committer | David de Boer <david@ddeboer.nl> | Tue Aug 15 10:58:39 2017 +0200 |
| tree | b66cad193d84ea181d54c43b32e8fca71c950a94 | |
| parent | 8d5342cc23e3797c924eafdf5c46a894077e3aa6 [diff] |
Fix compilation on SmartOS/solaris (#2)
erlang-bcrypt is a wrapper around the OpenBSD Blowfish password hashing algorithm, as described in A Future-Adaptable Password Scheme by Niels Provos and David Mazieres.
Build it (project uses rebar, but I’ve included a Makefile):
make
Run it (simple way, starting sasl, crypto and bcrypt):
erl -pa ebin -boot start_sasl -s crypto -s bcrypt
Hash a password using a salt with the default number of rounds:
1> {ok, Salt} = bcrypt:gen_salt(). {ok,"$2a$12$sSS8Eg.ovVzaHzi1nUHYK."} 2> {ok, Hash} = bcrypt:hashpw("foo", Salt). {ok,"$2a$12$sSS8Eg.ovVzaHzi1nUHYK.HbUIOdlQI0iS22Q5rd5z.JVVYH6sfm6"}
Verify the password:
3> {ok, Hash} =:= bcrypt:hashpw("foo", Hash). true 4> {ok, Hash} =:= bcrypt:hashpw("bar", Hash). false
The bcrypt application is configured by changing values in the application's environment:
default_log_rounds Sets the default number of rounds which define the complexity of the hash function. Defaults to 12.
mechanism Specifies whether to use the NIF implementation ('nif') or a pool of port programs ('port'). Defaults to 'nif'.
Note: the NIF implementation no longer blocks the Erlang VM scheduler threads
pool_size Specifies the size of the port program pool. Defaults to 4.
Hunter Morris & Mrinal Wadhwa.