Examples

The rz-hash tool can be used to calculate checksums and has functions of byte streams, files, text strings.

$ rz-hash -h
Usage: rz-hash [-rBhLkv] [-b S] [-a A] [-c H] [-E A] [-s S] [-f O] [-t O] [file] ...
 -a algo     comma separated list of algorithms (default is 'sha256')
 -b bsize    specify the size of the block (instead of full file)
 -B          show per-block hash
 -c hash     compare with this hash
 -e          swap endian (use little endian)
 -E algo     encrypt. Use -S to set key and -I to set IV
 -D algo     decrypt. Use -S to set key and -I to set IV
 -f from     start hashing at given address
 -i num      repeat hash N iterations
 -I iv       use give initialization vector (IV) (hexa or s:string)
 -S seed     use given seed (hexa or s:string) use ^ to prefix (key for -E)
             (- will slurp the key from stdin, the @ prefix points to a file
 -k          show hash using the openssh's randomkey algorithm
 -q          run in quiet mode (-qq to show only the hash)
 -L          list all available algorithms (see -a)
 -r          output rizin commands
 -s string   hash this string instead of files
 -t to       stop hashing at given address
 -x hexstr   hash this hexpair string instead of files
 -v          show version information

To obtain an MD5 hash value of a text string, use the -s option:

$ rz-hash -q -a md5 -s 'hello world'
5eb63bbbe01eeed093cb22bb8f5acdc3

It is possible to calculate hash values for contents of files. But do not attempt to do it for very large files because rz-hash buffers the whole input in memory before computing the hash.

To apply all algorithms known to rz-hash, use all as an algorithm name:

$ rz-hash -a all /bin/ls
/bin/ls: 0x00000000-0x000268c7 md5: 767f0fff116bc6584dbfc1af6fd48fc7
/bin/ls: 0x00000000-0x000268c7 sha1: 404303f3960f196f42f8c2c12970ab0d49e28971
/bin/ls: 0x00000000-0x000268c7 sha256: 74ea05150acf311484bddd19c608aa02e6bf3332a0f0805a4deb278e17396354
/bin/ls: 0x00000000-0x000268c7 sha384: c6f811287514ceeeaabe73b5b2f54545036d6fd3a192ea5d6a1fcd494d46151df4117e1c62de0884cbc174c8db008ed1
/bin/ls: 0x00000000-0x000268c7 sha512: 53e4950a150f06d7922a2ed732060e291bf0e1c2ac20bc72a41b9303e1f2837d50643761030d8b918ed05d12993d9515e1ac46676bc0d15ac94d93d8e446fa09
/bin/ls: 0x00000000-0x000268c7 md4: fdfe7c7118a57c1ff8c88a51b16fc78c
/bin/ls: 0x00000000-0x000268c7 xor: 42
/bin/ls: 0x00000000-0x000268c7 xorpair: d391
/bin/ls: 0x00000000-0x000268c7 parity: 00
/bin/ls: 0x00000000-0x000268c7 entropy: 5.95471783
/bin/ls: 0x00000000-0x000268c7 hamdist: 00
/bin/ls: 0x00000000-0x000268c7 pcprint: 22
/bin/ls: 0x00000000-0x000268c7 mod255: ef
/bin/ls: 0x00000000-0x000268c7 xxhash: 76554666
/bin/ls: 0x00000000-0x000268c7 adler32: 7704fe60
/bin/ls: 0x00000000-0x000268c7 luhn: 01
/bin/ls: 0x00000000-0x000268c7 crc8smbus: 8d
/bin/ls: 0x00000000-0x000268c7 crc15can: 1cd5
/bin/ls: 0x00000000-0x000268c7 crc16: d940
/bin/ls: 0x00000000-0x000268c7 crc16hdlc: 7847
/bin/ls: 0x00000000-0x000268c7 crc16usb: 17bb
/bin/ls: 0x00000000-0x000268c7 crc16citt: 67f7
/bin/ls: 0x00000000-0x000268c7 crc24: 3e7053
/bin/ls: 0x00000000-0x000268c7 crc32: c713f78f
/bin/ls: 0x00000000-0x000268c7 crc32c: 6cfba67c
/bin/ls: 0x00000000-0x000268c7 crc32ecma267: b4c809d6
/bin/ls: 0x00000000-0x000268c7 crc32bzip2: a1884a09
/bin/ls: 0x00000000-0x000268c7 crc32d: d1a9533c
/bin/ls: 0x00000000-0x000268c7 crc32mpeg2: 5e77b5f6
/bin/ls: 0x00000000-0x000268c7 crc32posix: 6ba0dec3
/bin/ls: 0x00000000-0x000268c7 crc32q: 3166085c
/bin/ls: 0x00000000-0x000268c7 crc32jamcrc: 38ec0870
/bin/ls: 0x00000000-0x000268c7 crc32xfer: 7504089d
/bin/ls: 0x00000000-0x000268c7 crc64: b6471d3093d94241
/bin/ls: 0x00000000-0x000268c7 crc64ecma: b6471d3093d94241
/bin/ls: 0x00000000-0x000268c7 crc64we: 8fe37d44a47157bd
/bin/ls: 0x00000000-0x000268c7 crc64xz: ea83e12c719e0d79
/bin/ls: 0x00000000-0x000268c7 crc64iso: d243106d9853221c