libgenaro

======= document: usage

Asynchronous multi-platform C library and CLI for encrypted file transfer on the Genaro network. Forked from libstorj with additional functions added.

For usage, see usage.md for examples, and see genaro.h for api.

Feature Highlights

• Asynchronous I/O with concurrent peer-to-peer network requests for shards
• Erasure encoding with reed solomon for data durability
• Robust handling of shard transfers by selecting alternative sources
• File integrity and authenticity verified with HMAC-SHA512
• File encryption with AES-256-CTR
• File name and bucket name encryption with AES-256-GCM
• Proxy support with SOCKS5, SOCKS4, SOCKS4a
• Asynchronous progress updates in bytes per file
• Transfers can be cleanly canceled per file
• Seed based file encryption key for portability between devices
• The key of AES-256-CTR can be provided to decrypt the encrypted file, so that file sharing can be easily implemented
• String can be encrypted with AES-256-CTR and directly stored to a bucket

Build

OS X / Debian / Ubuntu

mkdir build
cd build
cmake ..
make

Windows

md build
cd build
cmake -G "MinGW Makefiles" ..
mingw32-make

To run tests:

./build/tests

To run command line utility:

./build/genaroeden-cli --help

OS X Dependencies (w/ homebrew):

Development tools:

brew install libtool automake
git clone https://github.com/bitcoin-core/secp256k1.git /tmp/secp256k1
cd /tmp/secp256k1
./autogen.sh
./configure
make
sudo make install
git clone https://github.com/maandree/libkeccak.git /tmp/libkeccak
cd /tmp/libkeccak

Modify the contents of Makefile:

  # for Linux
  LIBEXT = so
  LIBFLAGS = -shared -Wl,-soname,libkeccak.$(LIBEXT).$(LIB_MAJOR)
  # for Mac OS
  # LIBEXT = dylib
  # LIBFLAGS = -dynamiclib

to：

  # for Linux
  # LIBEXT = so
  # LIBFLAGS = -shared -Wl,-soname,libkeccak.$(LIBEXT).$(LIB_MAJOR)
  # for Mac OS
  LIBEXT = dylib
  LIBFLAGS = -dynamiclib

and then:

make
sudo make install

and then install dependencies:

brew install gmp json-c libuv nettle libmicrohttpd libscrypt

Debian / Ubuntu (16.04) Dependencies

Development tools:

apt-get install build-essential libtool autotools-dev automake libmicrohttpd-dev bsdmainutils

Dependencies:

apt-get install libcurl4-gnutls-dev nettle-dev libjson-c-dev libuv1-dev libsecp256k1-dev libscrypt-dev
git clone https://github.com/maandree/libkeccak.git /tmp/libkeccak
cd /tmp/libkeccak
make
sudo make install

If libsecp256k1-dev(library secp256k1) can't be installed, try:

git clone https://github.com/bitcoin-core/secp256k1.git /tmp/secp256k1
cd /tmp/secp256k1
./autogen.sh
./configure
make
sudo make install

Windows Dependencies

1. Cross Compiling Dependencies from Ubuntu 16.04:

a):

apt-get install gcc-mingw-w64-x86-64 gcc-mingw-w64-i686 g++-mingw-w64-i686 g++-mingw-w64-x86-64 m4 autoconf automake libtool pkg-config curl

b):

cd depends
make HOST="x86_64-w64-mingw32"

Command "make HOST="x86_64-w64-mingw32" will start to download the source code packages, when all the packages is downloaded and extracted(when appearing "checking ..."), break this command, and do these: aa) open "depends/sources/x86_64-w64-mingw32/json-c/configure.ac", add " -Wno-error=implicit-fallthrough" after "-Wno-error=deprecated-declarations"; bb) open "depends/sources/x86_64-w64-mingw32/libkeccak/Makefile", delete the whole contents, and input:

CC = x86_64-w64-mingw32-gcc
OBJS = libkeccak/state.o libkeccak/digest.o
LIBKECCAK = libkeccak.a
DES_DIR = ../../../build/x86_64-w64-mingw32/lib
$(LIBKECCAK): $(OBJS)
	x86_64-w64-mingw32-ar rcs $(LIBKECCAK) $(OBJS)
install:
	mkdir -p $(DES_DIR) && cp -f $(LIBKECCAK) $(DES_DIR)
clean:
	rm -f $(OBJS) $(LIBKECCAK)

and run "make clean" in the directory "depends/sources/x86_64-w64-mingw32/libkeccak".

cc) open "depends/sources/x86_64-w64-mingw32/libscrypt/Makefile", delete the whole contents, and input:

CC = x86_64-w64-mingw32-gcc
OBJS = crypto_scrypt-nosse.o sha256.o crypto-mcf.o b64.o crypto-scrypt-saltgen.o crypto_scrypt-check.o crypto_scrypt-hash.o slowequals.o
LIBSCRYPT = libscrypt.a
DES_DIR = ../../../build/x86_64-w64-mingw32/lib
$(LIBSCRYPT): $(OBJS)
	x86_64-w64-mingw32-ar rcs $(LIBSCRYPT) $(OBJS)
install:
	mkdir -p $(DES_DIR) && cp -f $(LIBSCRYPT) $(DES_DIR)
clean:
	rm -f $(OBJS) $(LIBSCRYPT)

and run "make clean" in the directory "depends/sources/x86_64-w64-mingw32/libscrypt".

c): run:

make HOST="x86_64-w64-mingw32"

again.

2. Install Dependencies on Windows:

Install MinGW-w64 and add the "bin" directory to environment "PATH". Install CMake.