[hashcat.git] / docs / changes.txt

* changes v3.00 -> v3.xx:

##
## Improvements
##

- Make Linux build POSIX compatible; Also allow it to actually compile on musl-libc systems
- Add support to compile on FreeBSD
- Make use of cl_context_properties[] to clCreateContext(), even if OpenCL specification allow the use of NULL, some runtimes fail without
- The Time.Estimated attribute in status display should also show --runtime limit if user set it
- Fix some strict aliasing rule violation on older compilers
- Fix some variable initializers on older compilers
- Replace DARWIN macro with compiler predefined macro __APPLE__
- Replace LINUX macro with compiler predefined macro __linux__
- Allow the use of enc_id == 0 in hash-mode 10600 and 10700 as it takes no part in the actual computation
- Get rid of exit() calls in OpenCL wrapper library with the goal to have a better control which error can be ignored under special circumstances
- Do not error and exit if an OpenCL platform has no devices, just print a warning and continue with the next platform
- Workaround for OpenCL runtimes which do not accept -I parameter in the OpenCL kernel build options even if this is an OpenCL standard option
- Workaround for OpenCL runtimes which do accept -I parameter in the OpenCL kernel build options, but do not allow quotes
- Output cracked hashes on Windows using \r\n and not \n
- Replace RegGetValue() with RegQueryValueEx() to enable Windows XP 32 bit compatibility

##
## Bugs
##

- Fixed a bug where hashcat is suppressing --machine-readable output in the final status update
- Fixed a bug where hashcat did not check the return of realpath() and crashes uncontrolled if the path does not exist
- Fixed a bug where hashcat crashes for accessing deallocated buffer if user spams "s" shortly before hashcat shuts down
- Fixed a bug where hashcat crashes in case of a scrypt P setting > 1
- Fixed a bug where hashcat did not correctly use the newly cracked plains whenever --loopback or the induction folder was used
- Fixed a bug where hashcat did not correctly remove hashes of type WPA/WPA2 even if present in potfile
- Fixed a bug where hashcat reported an invalid password for a zero-length password in LM

* changes v2.01 -> v3.00:

This release markes the fusion of "hashcat" and "oclHashcat" into "hashcat".
It combines all features of all hashcat projects in one project.

##
## Features
##

- Support for Apple OpenCL runtime
- Support for NVidia OpenCL runtime (replaces CUDA)
- Support for Mesa (Gallium) OpenCL runtime
- Support for pocl OpenCL runtime
- Support for Khronos' OSS OpenCL reference implementation for building
- Support to utilize OpenCL devices-types other than GPU, ex: CPU and FPGA
- Support to utilize multiple different OpenCL platforms in parallel, ex: AMD + NV
- Support to utilize multiple different OpenCL device-types in parallel, ex: GPU + CPU
- Added option --opencl-platform to select a specific OpenCL platform
- Added option --opencl-device-types select specific OpenCL device types
- Added option --opencl-vector-width to override automatically selected vector-width size
- Added makefile native compilation target
- Added makefile install and uninstall targets
- Added autotuning engine and user-configurable tuning database
- Added current engine clock, current memory clock and pci-e lanes to the status display
- Added support for --gpu-temp-retain for NVidia GPU, both Linux and Windows
- Added execution timer of the running kernel to the status display
- Added command prompt to quit at next restore checkpoint
- Added human-readable error message for the OpenCL error codes
- Added option --potfile-path to override potfile path
- Added option --veracrypt-keyfile to set Keyfiles used, can be multiple
- Added option --veracrypt-pim to set the VeraCrypt personal iterations multiplier
- Added option --machine-readable for easier parsing of output
- Added option --powertune-enable to work with NVidia devices as well, not just AMD
- Added option --stdout to print candidates instead of trying to crack a hash

##
## Algorithms
##

- Added new hash-mode   125 = ArubaOS
- Added new hash-mode 12900 = Android FDE (Samsung DEK)
- Added new hash-mode 13000 = RAR5
- Added new hash-mode 13100 = Kerberos 5 TGS-REP etype 23
- Added new hash-mode 13200 = AxCrypt
- Added new hash-mode 13300 = AxCrypt in memory SHA1
- Added new hash-mode 13400 = Keepass 1 (AES/Twofish) and Keepass 2 (AES)
- Added new hash-mode 13500 = PeopleSoft PS_TOKEN
- Added new hash-mode 13600 = WinZip
- Added new hash-mode 137** = VeraCrypt
- Added new hash-mode 13800 = Windows 8+ phone PIN/Password

##
## Performance
##

- Full Table: https://docs.google.com/spreadsheets/d/1B1S_t1Z0KsqByH3pNkYUM-RCFMu860nlfSsYEqOoqco/edit#gid=0

##
## Improvements
##

- Reordering of files to help integration into linux distributions ~/.hashcat etc
- Use a profile directory to write temporary files (session, potfile etc.)
- Workaround depencies on AMD APP-SDK AMD ADL, NV CUDA-SDK, NV ForceWare, NVML and NVAPI; they are no longer required
- Load external libraries dynamic at runtime instead of link them static at compile-time
- Benchmark accuracy improved; Is now on par to: singlehash -a 3 -w 3 ?b?b?b?b?b?b?b
- Benchmark no longer depends on a fixed time
- Removed option --benchmark-mode, therefore support --workload-profile in benchmark-mode
- Enabled support of --machine-readable in combination with --benchmark for automated benchmark processing
- Replaced --status-automat entirely with --machine-readable to make it more consistent among benchmark and non-benchmark mode
- Extended support from 14 to 255 functions calls per rule
- Extended password length up to 32 for 7zip
- Extended salt length up to 55 for raw hash types, eg: md5($pass.$salt)
- Extended version information
- Removed some duplicate rules in T0XlCv1, d3ad0ne and dive
- Redesigned changes.txt layout
- Redesigned --help menu layout

##
## Bugs
##

- Fixed a bug in speed display: In some situation, especially with slow hashes or lots of salts, it showed a speed of 0H/s
- Fixed a bug in restore handling: user immediately aborting after restart broke the restore file
- Fixed a bug in line counter: conditional jump or move depends on an uninitialised value
- Fixed a bug in rule-engine for NVidia devices: code for left- and right-shift were switched
- Fixed a bug in dive.rule: rules were not updated after the function 'x' was renamed to 'O'
- Fixed a bug in memory allocation "OpenCL -4 error": used unitialized value in a special situation
- Fixed a bug in memory handling: heap buffer overflow
- Fixed a bug in memory handling: out of bounds access
- Fixed a bug in implementation of DCC2: forced default iteration count for hashes to 10240
- Fixed a bug in implementation of WPA/WPA2: MAC and nonce stay one their original position as in the hccap file
- Fixed a bug in implementation of GOST R 34.11-94: zero length passwords were not cracked

##
## Technical
##

- Removed deprecated GCC version check requirement
- Removed NPROCS from Makefile, let make automatically detect the optimal number of parallel threads
- Dropped all C++ overloading functions to normal function which helps support more OpenCL platforms
- Renamed functions in common.h to emphasize their purpose
- Refactorized fast-hash kernels to enable SIMD on all OpenCL platforms
- Refactorized SIMD handling: SIMD the inner-loop not the outer-loop to save registers
- Workaround missing clEnqueueFillBuffer() support in certain OpenCL runtimes
- Added amd_bytealign() support in non-AMD OpenCL runtimes
- Added amd_bfe() support in non-AMD OpenCL runtimes
- Added several macros to allow writing optimized code for the different OpenCL platforms
- Replaced typedef for bool with stdbool.h
- Added special DEBUG environment variables to the makefile
- Hashcat now acquires an exclusive lock before writing to any file
- Changed buffers to not use same buffer for both input and output at the same time with snprintf()
- Check for allocatable device-memory depending on kernel_accel amplifier before trying to allocate
- Added additional check for max. ESSID length to prevent possible crashes
- Use a GCC equivalent for __stdcall where applicable
- Synchronize maximum output line size with input line size
- Increased maximum hash line size to 0x50000
- Run weak-hash checks only in straight-attack mode, this greatly reduces code complexity
- Restrict loopback option to straight attack-mode
- Moved rules_optimize to hashcat-utils
- Stick to older libOpenCL in binary package to avoid errors like this: version `OPENCL_2.0' not found
- Tightened hash parser for several algorithms
- Updated old RC4 code in Kerberos 5
- Limited the salt length of Juniper Netscreen/SSG (ScreenOS) hashes to 10
- Updated algorithm used to automatically select an ideal --scrypt-tmto value
- Renamed option --gpu-accel to --kernel-accel
- Renamed option --gpu-loops to --kernel-loops
- Renamed option --gpu-devices to --opencl-devices
- Added inline declaration to functions from simd.c, common.c, rp.c and types_ocl.c to increase performance
- Dropped static declaration from functions in all kernel to achieve OpenCL 1.1 compatibility
- Added -cl-std=CL1.1 to all kernel build options
- Created environment variable to inform NVidia OpenCL runtime to not create its own kernel cache
- Created environment variable to inform pocl OpenCL runtime to not create its own kernel cache
- Dropped special 64-bit rotate() handling for NV, it seems that they've added it to their OpenCL runtime
- Completely get rid of HAVE_ADL, HAVE_NVML and HAVE_NVAPI in sources
- Replaced NVAPI with NVML on windows