Builds the reference argon2 command line utility modified to include optional secret and additional data.
This is the reference code from https://github.com/P-H-C/phc-winner-argon2 release 6 (2 July 2019).
make builds the executable argon2, the static library libargon2.a,
and the shared library libargon2.so (or on macOS, the dynamic library
libargon2.dylib -- make sure to specify the installation prefix when
you compile: make PREFIX=/usr). Make sure to run make test to verify
that your build produces valid results. sudo make install PREFIX=/usr
installs it to your system.
argon2 is a command-line utility to test specific Argon2 instances
on your system. To show usage instructions, run
./argon2 -h as
Usage: ./argon2 [-h] salt [-i|-d|-id] [-t iterations] [-m memory] [-p parallelism] [-l hash length] [-e|-r] [-v (10|13)]
Parameters:
salt The salt to use, at least 8 characters
-i Use Argon2i (this is the default)
-d Use Argon2d instead of Argon2i
-id Use Argon2id instead of Argon2i
-x password Password
-t N Sets the number of iterations to N (default = 3)
-s secret Optional secret
-a ad Optional additional data
-m N Sets the memory usage of 2^N KiB (default 12)
-k N Sets the memory usage of N KiB (default 4)
-p N Sets parallelism to N threads (default 1)
-l N Sets hash output length to N bytes (default 32)
-s secret Secret
-a ad Additional data
-e Output only encoded hash
-r Output only the raw bytes of the hash
-v (10|13) Argon2 version (defaults to the most recent version, currently 13)
-h Print argon2 usage
For example, to hash "password" using "somesalt" as a salt and doing 2 iterations, consuming 64 MiB, using four parallel threads and an output hash of 24 bytes
$ echo -n "password" | ./argon2 somesalt -t 2 -m 16 -p 4 -l 24
Type: Argon2i
Iterations: 2
Memory: 65536 KiB
Parallelism: 4
Hash: 45d7ac72e76f242b20b77b9bf9bf9d5915894e669a24e6c6
Encoded: $argon2i$v=19$m=65536,t=2,p=4$c29tZXNhbHQ$RdescudvJCsgt3ub+b+dWRWJTmaaJObG
0.188 seconds
Verification ok