Hash It!

A hash tool which can work like hashdeep or md5sum, sha1sum, etc... When you want to find the hash or hashes of a file quickly, cross platform using a single command.

Yes the name is very intentional and similar to what say when I realise I need to get multiple hashes of a large file. This tool attempts to solve that pain.

Dual-licensed under MIT or the UNLICENSE.

Other similar projects,

• hashdeep originally called md5deep

Support

Using hashit commercially? If you want priority support for hashit you can purchase a years worth https://app.gumroad.com/products/mcpni which entitles you to priority direct email support from the developer.

Install

If you are comfortable using Go and have >= 1.16 installed the usual go get -u github.com/boyter/hashit/ will install for you.

Binaries will be on Releases for Windows, GNU/Linux and macOS for both i386 and x86_64 bit machines once it hits version 1.0.0.

If you would like to assist with getting hashit added into apt/homebrew/chocolatey/etc... please submit a PR or at least raise an issue with instructions.

Pitch

Why use hashit?

• It is very fast
• You can get multiple hashes "for free" on any CPU with multiple cores
• Works very well across multiple platforms without slowdown (Windows, Linux, macOS)
• Supports many hashes hashit --hashes MD4, MD5, SHA1, SHA256, SHA512, Blake2b-256, Blake2b-512, Blake3, SHA3-224, SHA3-256, SHA3-384, SHA3-512
• Output is compatible with hashdeep

Usage

Command line usage of hashit is designed to be as simple as possible. Full details can be found in hashit --help or hashit -h.

$ hashit -h
Hash It!
Version 1.2.0
Ben Boyter <ben@boyter.org>

Usage:
  hashit [flags]

Flags:
      --debug             enable debug output
  -f, --format string     set output format [text, json, sum, hashdeep, hashonly] (default "text")
  -c, --hash strings      hashes to be run for each file (set to 'all' for all possible hashes) (default [md5,sha1,sha256,sha512])
      --hashes            list all supported hashes
  -h, --help              help for hashit
      --no-stream         do not stream out results as processed
  -o, --output string     output filename (default stdout)
  -p, --progress          display progress of files as they are processed
  -r, --recursive         recursive subdirectories are traversed
      --stream-size int   min size of file in bytes where stream processing starts (default 1000000)
      --threads int       number of threads processing files, by default the number of CPU cores (default 8)
      --trace             enable trace output
  -v, --verbose           verbose output
      --version           version for hashit

Output should look something like the below for operations on this repository

$ hashit README.md
README.md (6616 bytes)
        MD5 17cad37b7b873eed74e15cafd7855f6d
       SHA1 8e4256ef60302acf72e9c25bea5a41e195cf14ec
     SHA256 5ff9cd136f827570acc98be42d5a76a9409c83e3b9300ff2466de48c71760ca0
     SHA512 e4d108219def5c36089f7cd45d4531548d52a41cc5992004c78e816fbe64d63a21bc7ea1303d7a31bd693bf4f5435c916fbbe4e9d3e1fd0b1982a9734b4ec739

$ hashit --hash all README.md
README.md (8025 bytes)
        MD4 1fe6069ad2ad0e14d5760f680563f7ad
        MD5 76132c9b8bd4abd9968bf77aecdd5212
       SHA1 b7700fc98999af299270ad5797adff8c765188bb
     SHA256 a11989771927275e29f66e9f6486126231bf3bc397bdecebb54d06967718a8af
     SHA512 e7a81bfb5b53c38eda7caab0a158db0067ebfbeabe32db52c97d09b75560199c4ef1ab055f812621f328e0348b861b9bae06dd5d1e6e30c0ebe87cf4145c8eae
Blake2b-256 04f5f1d2437a2b6627c8ebd365173323bfff698e94882a15d364a88e8e213d40
Blake2b-512 96fade8d2cb0a894612c8d1f013d22939a7f744efe2d7f71b60d68a5d38697886f53b702f8be159e528c6212cbad4f562c4209236d82f146e77692f2a059e95e
     Blake3 5e7e9d827d67ffa1813f2611b6ea5db52b8ffc1f21733b7ebff7968b7a7d154b
   SHA3-224 49c7678edc07785dd86d57eac2a5c55e31b28696b0c65c0a5685427f
   SHA3-256 b2490b9afc453dac7464e575fd7aac4258e632cbd77c3a371ad72443a21971bd
   SHA3-384 4091ab0487ca4f6ac2f08e2c4d323c775c441cdf5995e7148e1d3310115e3f99348882e620df4c6959d5074121e50a53
   SHA3-512 61950eb9fdbaec2add28b46da7ae628c985989453c41f5570335537eff62cb7c135d34baef3a16fdf5d823ec653ce00bc3a70f564b5562f4a7a7fabebdd9c903    

$ hashit scripts
scripts/include.go (1835 bytes)
        MD5 73d7180f48af0b44e4ca7ae650335ac1
       SHA1 dcd8b23288c1604c7b541c7626ae569bec9001b6
     SHA256 929750fcace21c4a261d19824f691eae8691958989e8c1870b0934cfa9493462
     SHA512 b37ac5a309f9006b740fb0933fe5c4569923cab0fe822c1e2fbf0fbd2a15e9787681ec509ca9f7ea13d921a82257ecc3a32e2dfa18cc6892ea82978befe2629c

hashit can produce hashdeep compatible audit files and its ability to do the audit is coming,

$ hashit --format hashdeep processor
%%%% HASHDEEP-1.0
%%%% size,md5,sha256,filename
## Invoked from: /home/bboyter/Go/src/github.com/boyter/hashit
## $ hashit --format hashdeep processor
##
12093,4bf92524edf098a6f5ada7b9ce6ae933,54be4e99f2635c00c6eb769a0342c2c040eac9b4f10627233e6dea8b9b20981b,processor/constants.go
18786,5b0971442f17ae00b7ad6087855d5089,b1074780eee33b1c7d548b1b94c6743691dcbc5c7d475d685c9ca77a8b7905ba,processor/workers.go
5856,58043d636928a4c0e7e6a04e69d385de,12f0e925a67d10da9327f11976c9156ba158458874d5d6fde632c27e27dead67,processor/processor.go
758,76697adfb4c818d816d3092c04fdeb46,af61af65db73a2aec2d2bea66468d9e7c44bc92bade2561754b426484a7f235b,processor/file.go
8883,8865704b023f417ffa2d6d347f5d2164,56a04cd56fb30b4ccb7b1344fbee119607b514eac57c99222dbe1319020adb5a,processor/formatters.go
444,22158f610b8a262ca8ae68424ad96ad9,47f026a06d7ced7ecbbdaf199926678cbc003b7a387eb9bbee78a2a0340297bf,processor/structs.go
2840,ce29ce9a95713628e1d8e43a51027ac1,7dcc785a34ce95c4e741e92177f221e6d05d9c1663481f35c54286fc6645934f,processor/workers_test.go

The output of the above can be run through hashdeep for verification,

$ hashit --format hashdeep processor > audit.txt && hashdeep -l -r -a -v -k audit.txt processor
hashdeep: Audit passed
          Files matched: 7
Files partially matched: 0
            Files moved: 0
        New files found: 0
  Known files not found: 0

Note that you don't have to specify the directory you want to run against. Running hashit will assume you want to run against the current directory.

If you supply a single argument to hashit and its a file it will process it. If you supply a single argument and it is a directory it will recurse that directory.

If you supply multiple arguments which consist of files and directories then directories will be skipped. This allows wild card's to be used and just process the files in a directory.

$ hashit *
Gopkg.toml (736 bytes)
        MD5 3e88135ebf43e8199ce0c19c8bebd925
       SHA1 c3324f86a84c7a3ee941fcf94d221877aa25e799
     SHA256 712667bfe27e245e0f34b2d64ad6b0d21580c058a01ce8374e5b6fa408a97f66
     SHA512 d897a428487e31143b1b1ba9b3fa237bc9ed3aac7ad15ecd9507b7f58eaf5f1059385ebfcbeed4505e2cbf63113f70a0252acbf9f738f25fc79e563e7c8b32b6

Gopkg.lock (1514 bytes)
        MD5 d19eb48da41406376a361a1c4a97e496
       SHA1 977b14e5ed765137c0e146789ed37c52a8cd51ee
     SHA256 5b76da627bd28a7bc7459b3281e3582616b21c4694302ae00b8888689effe35c
     SHA512 95b9450cf19a3ef5c287841b3606ac7a1ad3066308a638fb8be908d649360a656ae41291e657e6f4250c87b0e18e05d73fca111fede9ed496eb600afdb245a0d

README.md (7094 bytes)
        MD5 df97688a1cb29d4b06d630df034b6e16
       SHA1 d1c94c30c97f8fac75fe485e8352da813c4d4bb7
     SHA256 78ce6718977135593fbd9867d6c2a68f91aa6d2846fe7bf08cbe9924790517b9
     SHA512 759a3ef175466639fdc5bfbd1a8a47087410148405b15a3ac4bc0c88e677207f7c50f62cee947dabbbcf739c1031f3ff1ecdfd1688d83f566c75068b11a1f680

... OUTPUT SNIPPED ...

If you are running hashit on a slower mechanical HDD you may want to limit the number of threads which read files from disk using --threads 1

$ hashit --threads 1 /mnt/slowdisk/

For large files you can use -p to see the progress of the file to get an idea of how long it might take to process.

$ hashit -p --threads 1 large.file
[==================================>---------------------------------] file: large.file

Misc stuff below

Usage of hashdeep

https://linhost.info/2010/05/using-hashdeep-to-ensure-data-integrity/

Issues to address

jessek/hashdeep#4 jessek/hashdeep#358

Example usage

hashdeep -r vendor > audit.txt hashdeep -r -a -k audit.txt vendor