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phc-winner-argon2-20171227/CHANGELOG.md 0000664 0000000 0000000 00000001375 13220775357 0017053 0 ustar 00root root 0000000 0000000 # 20171227
* Added ABI version number
* AVX2/AVX-512F optimizations of BLAMKA
* Set Argon2 version number from the command line
* New bindings
* Minor bug and warning fixes (no security issue)
# 20161029
* Argon2id added
* Better documentation
* Dual licensing CC0 / Apache 2.0
* Minor bug fixes (no security issue)
# 20160406
* Version 1.3 of Argon2
* Version number in encoded hash
* Refactored low-level API
* Visibility control for library symbols
* Microsoft Visual Studio solution
* New bindings
* Minor bug and warning fixes (no security issue)
# 20151206
* Python bindings
* Password read from stdin, instead of being an argument
* Compatibility FreeBSD, NetBSD, OpenBSD
* Constant-time verification
* Minor bug and warning fixes (no security issue)
phc-winner-argon2-20171227/LICENSE 0000664 0000000 0000000 00000042727 13220775357 0016255 0 ustar 00root root 0000000 0000000 Argon2 reference source code package - reference C implementations
Copyright 2015
Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
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phc-winner-argon2-20171227/Makefile 0000664 0000000 0000000 00000011353 13220775357 0016677 0 ustar 00root root 0000000 0000000 #
# Argon2 reference source code package - reference C implementations
#
# Copyright 2015
# Daniel Dinu, Dmitry Khovratovich, Jean-Philippe Aumasson, and Samuel Neves
#
# You may use this work under the terms of a Creative Commons CC0 1.0
# License/Waiver or the Apache Public License 2.0, at your option. The terms of
# these licenses can be found at:
#
# - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
# - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
#
# You should have received a copy of both of these licenses along with this
# software. If not, they may be obtained at the above URLs.
#
RUN = argon2
BENCH = bench
GENKAT = genkat
# Increment on an ABI breaking change
ABI_VERSION = 1
DIST = phc-winner-argon2
SRC = src/argon2.c src/core.c src/blake2/blake2b.c src/thread.c src/encoding.c
SRC_RUN = src/run.c
SRC_BENCH = src/bench.c
SRC_GENKAT = src/genkat.c
OBJ = $(SRC:.c=.o)
CFLAGS += -std=c89 -O3 -Wall -g -Iinclude -Isrc
ifeq ($(NO_THREADS), 1)
CFLAGS += -DARGON2_NO_THREADS
else
CFLAGS += -pthread
endif
CI_CFLAGS := $(CFLAGS) -Werror=declaration-after-statement -D_FORTIFY_SOURCE=2 \
-Wextra -Wno-type-limits -Werror -coverage -DTEST_LARGE_RAM
OPTTARGET ?= native
OPTTEST := $(shell $(CC) -Iinclude -Isrc -march=$(OPTTARGET) src/opt.c -c \
-o /dev/null 2>/dev/null; echo $$?)
# Detect compatible platform
ifneq ($(OPTTEST), 0)
$(info Building without optimizations)
SRC += src/ref.c
else
$(info Building with optimizations for $(OPTTARGET))
CFLAGS += -march=$(OPTTARGET)
SRC += src/opt.c
endif
BUILD_PATH := $(shell pwd)
KERNEL_NAME := $(shell uname -s)
LIB_NAME=argon2
ifeq ($(KERNEL_NAME), Linux)
LIB_EXT := so.$(ABI_VERSION)
LIB_CFLAGS := -shared -fPIC -fvisibility=hidden -DA2_VISCTL=1
SO_LDFLAGS := -Wl,-soname,lib$(LIB_NAME).$(LIB_EXT)
LINKED_LIB_EXT := so
endif
ifeq ($(KERNEL_NAME), $(filter $(KERNEL_NAME),FreeBSD NetBSD OpenBSD))
LIB_EXT := so
LIB_CFLAGS := -shared -fPIC
endif
ifeq ($(KERNEL_NAME), Darwin)
LIB_EXT := $(ABI_VERSION).dylib
LIB_CFLAGS := -dynamiclib -install_name @rpath/lib$(LIB_NAME).$(LIB_EXT)
LINKED_LIB_EXT := dylib
endif
ifeq ($(findstring CYGWIN, $(KERNEL_NAME)), CYGWIN)
LIB_EXT := dll
LIB_CFLAGS := -shared -Wl,--out-implib,lib$(LIB_NAME).$(LIB_EXT).a
endif
ifeq ($(findstring MINGW, $(KERNEL_NAME)), MINGW)
LIB_EXT := dll
LIB_CFLAGS := -shared -Wl,--out-implib,lib$(LIB_NAME).$(LIB_EXT).a
endif
ifeq ($(findstring MSYS, $(KERNEL_NAME)), MSYS)
LIB_EXT := dll
LIB_CFLAGS := -shared -Wl,--out-implib,lib$(LIB_NAME).$(LIB_EXT).a
endif
ifeq ($(KERNEL_NAME), SunOS)
CC := gcc
CFLAGS += -D_REENTRANT
LIB_EXT := so
LIB_CFLAGS := -shared -fPIC
endif
ifeq ($(KERNEL_NAME), Linux)
ifeq ($(CC), clang)
CI_CFLAGS += -fsanitize=address -fsanitize=undefined
endif
endif
LIB_SH := lib$(LIB_NAME).$(LIB_EXT)
LIB_ST := lib$(LIB_NAME).a
ifdef LINKED_LIB_EXT
LINKED_LIB_SH := lib$(LIB_NAME).$(LINKED_LIB_EXT)
endif
LIBRARIES = $(LIB_SH) $(LIB_ST)
HEADERS = include/argon2.h
INSTALL = install
DESTDIR =
PREFIX = /usr
INCLUDE_REL = include
LIBRARY_REL = lib
BINARY_REL = bin
INST_INCLUDE = $(DESTDIR)$(PREFIX)/$(INCLUDE_REL)
INST_LIBRARY = $(DESTDIR)$(PREFIX)/$(LIBRARY_REL)
INST_BINARY = $(DESTDIR)$(PREFIX)/$(BINARY_REL)
.PHONY: clean dist format $(GENKAT) all install
all: $(RUN) libs
libs: $(LIBRARIES)
$(RUN): $(SRC) $(SRC_RUN)
$(CC) $(CFLAGS) $(LDFLAGS) $^ -o $@
$(BENCH): $(SRC) $(SRC_BENCH)
$(CC) $(CFLAGS) $^ -o $@
$(GENKAT): $(SRC) $(SRC_GENKAT)
$(CC) $(CFLAGS) $^ -o $@ -DGENKAT
$(LIB_SH): $(SRC)
$(CC) $(CFLAGS) $(LIB_CFLAGS) $(LDFLAGS) $(SO_LDFLAGS) $^ -o $@
$(LIB_ST): $(OBJ)
ar rcs $@ $^
clean:
rm -f $(RUN) $(BENCH) $(GENKAT)
rm -f $(LIB_SH) $(LIB_ST) kat-argon2*
rm -f testcase
rm -rf *.dSYM
cd src/ && rm -f *.o
cd src/blake2/ && rm -f *.o
cd kats/ && rm -f kat-* diff* run_* make_*
dist:
cd ..; \
tar -c --exclude='.??*' -z -f $(DIST)-`date "+%Y%m%d"`.tgz $(DIST)/*
test: $(SRC) src/test.c
$(CC) $(CFLAGS) -Wextra -Wno-type-limits $^ -o testcase
@sh kats/test.sh
./testcase
testci: $(SRC) src/test.c
$(CC) $(CI_CFLAGS) $^ -o testcase
@sh kats/test.sh
./testcase
.PHONY: test
format:
clang-format -style="{BasedOnStyle: llvm, IndentWidth: 4}" \
-i include/*.h src/*.c src/*.h src/blake2/*.c src/blake2/*.h
install: $(RUN) libs
$(INSTALL) -d $(INST_INCLUDE)
$(INSTALL) -m 0644 $(HEADERS) $(INST_INCLUDE)
$(INSTALL) -d $(INST_LIBRARY)
$(INSTALL) $(LIBRARIES) $(INST_LIBRARY)
ifdef LINKED_LIB_SH
cd $(INST_LIBRARY) && ln -s $(notdir $(LIB_SH) $(LINKED_LIB_SH))
endif
$(INSTALL) -d $(INST_BINARY)
$(INSTALL) $(RUN) $(INST_BINARY)
uninstall:
cd $(INST_INCLUDE) && rm -f $(notdir $(HEADERS))
cd $(INST_LIBRARY) && rm -f $(notdir $(LIBRARIES) $(LINKED_LIB_SH))
cd $(INST_BINARY) && rm -f $(notdir $(RUN))
phc-winner-argon2-20171227/README.md 0000664 0000000 0000000 00000031145 13220775357 0016517 0 ustar 00root root 0000000 0000000 # Argon2
[](https://travis-ci.org/P-H-C/phc-winner-argon2)
[](https://ci.appveyor.com/project/P-H-C/phc-winner-argon2)
[](https://codecov.io/github/P-H-C/phc-winner-argon2?branch=master)
This is the reference C implementation of Argon2, the password-hashing
function that won the [Password Hashing Competition
(PHC)](https://password-hashing.net).
Argon2 is a password-hashing function that summarizes the state of the
art in the design of memory-hard functions and can be used to hash
passwords for credential storage, key derivation, or other applications.
It has a simple design aimed at the highest memory filling rate and
effective use of multiple computing units, while still providing defense
against tradeoff attacks (by exploiting the cache and memory organization
of the recent processors).
Argon2 has three variants: Argon2i, Argon2d, and Argon2id. Argon2d is faster
and uses data-depending memory access, which makes it highly resistant
against GPU cracking attacks and suitable for applications with no threats
from side-channel timing attacks (eg. cryptocurrencies). Argon2i instead
uses data-independent memory access, which is preferred for password
hashing and password-based key derivation, but it is slower as it makes
more passes over the memory to protect from tradeoff attacks. Argon2id is a
hybrid of Argon2i and Argon2d, using a combination of data-depending and
data-independent memory accesses, which gives some of Argon2i's resistance to
side-channel cache timing attacks and much of Argon2d's resistance to GPU
cracking attacks.
Argon2i, Argon2d, and Argon2id are parametrized by:
* A **time** cost, which defines the amount of computation realized and
therefore the execution time, given in number of iterations
* A **memory** cost, which defines the memory usage, given in kibibytes
* A **parallelism** degree, which defines the number of parallel threads
The [Argon2 document](argon2-specs.pdf) gives detailed specs and design
rationale.
Please report bugs as issues on this repository.
## Usage
`make` builds the executable `argon2`, the static library `libargon2.a`,
and the shared library `libargon2.so` (or `libargon2.dylib` on OSX).
Make sure to run `make test` to verify that your build produces valid
results. `make install PREFIX=/usr` installs it to your system.
### Command-line utility
`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)]
Password is read from stdin
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
-t N Sets the number of iterations to N (default = 3)
-m N Sets the memory usage of 2^N KiB (default 12)
-p N Sets parallelism to N threads (default 1)
-l N Sets hash output length to N bytes (default 32)
-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
```
### Library
`libargon2` provides an API to both low-level and high-level functions
for using Argon2.
The example program below hashes the string "password" with Argon2i
using the high-level API and then using the low-level API. While the
high-level API takes the three cost parameters (time, memory, and
parallelism), the password input buffer, the salt input buffer, and the
output buffers, the low-level API takes in these and additional parameters
, as defined in [`include/argon2.h`](include/argon2.h).
There are many additional parameters, but we will highlight three of them here.
1. The `secret` parameter, which is used for [keyed hashing](
https://en.wikipedia.org/wiki/Hash-based_message_authentication_code).
This allows a secret key to be input at hashing time (from some external
location) and be folded into the value of the hash. This means that even if
your salts and hashes are compromized, an attacker cannot brute-force to find
the password without the key.
2. The `ad` parameter, which is used to fold any additional data into the hash
value. Functionally, this behaves almost exactly like the `secret` or `salt`
parameters; the `ad` parameter is folding into the value of the hash.
However, this parameter is used for different data. The `salt` should be a
random string stored alongside your password. The `secret` should be a random
key only usable at hashing time. The `ad` is for any other data.
3. The `flags` parameter, which determines which memory should be securely
erased. This is useful if you want to securly delete the `pwd` or `secret`
fields right after they are used. To do this set `flags` to either
`ARGON2_FLAG_CLEAR_PASSWORD` or `ARGON2_FLAG_CLEAR_SECRET`. To change how
internal memory is cleared, change the global flag
`FLAG_clear_internal_memory` (defaults to clearing internal memory).
Here the time cost `t_cost` is set to 2 iterations, the
memory cost `m_cost` is set to 216 kibibytes (64 mebibytes),
and parallelism is set to 1 (single-thread).
Compile for example as `gcc test.c libargon2.a -Isrc -o test`, if the program
below is named `test.c` and placed in the project's root directory.
```c
#include "argon2.h"
#include
#include
#include
#define HASHLEN 32
#define SALTLEN 16
#define PWD "password"
int main(void)
{
uint8_t hash1[HASHLEN];
uint8_t hash2[HASHLEN];
uint8_t salt[SALTLEN];
memset( salt, 0x00, SALTLEN );
uint8_t *pwd = (uint8_t *)strdup(PWD);
uint32_t pwdlen = strlen((char *)pwd);
uint32_t t_cost = 2; // 1-pass computation
uint32_t m_cost = (1<<16); // 64 mebibytes memory usage
uint32_t parallelism = 1; // number of threads and lanes
// high-level API
argon2i_hash_raw(t_cost, m_cost, parallelism, pwd, pwdlen, salt, SALTLEN, hash1, HASHLEN);
// low-level API
argon2_context context = {
hash2, /* output array, at least HASHLEN in size */
HASHLEN, /* digest length */
pwd, /* password array */
pwdlen, /* password length */
salt, /* salt array */
SALTLEN, /* salt length */
NULL, 0, /* optional secret data */
NULL, 0, /* optional associated data */
t_cost, m_cost, parallelism, parallelism,
ARGON2_VERSION_13, /* algorithm version */
NULL, NULL, /* custom memory allocation / deallocation functions */
/* by default only internal memory is cleared (pwd is not wiped) */
ARGON2_DEFAULT_FLAGS
};
int rc = argon2i_ctx( &context );
if(ARGON2_OK != rc) {
printf("Error: %s\n", argon2_error_message(rc));
exit(1);
}
free(pwd);
for( int i=0; i