Commands tagged sha256 sorted by votes

Commands tagged sha256 (8)

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Bitcoin Brainwallet Private Key Calculator

A bitcoin "brainwallet" is a secret passphrase you carry in the "wallet" of your brain. The Bitcoin Brainwallet Private Key Calculator calculates the standard base58 encoded bitcoin private key from your "brainwallet" passphrase. The private key is the most important bitcoin number. All other numbers can be derived from it. This command uses 3 other functions - all 3 are defined on my user page: 1) brainwallet_exponent() - search for Bitcoin Brainwallet Exponent Calculator 2) brainwallet_checksum() - search for Bitcoin Brainwallet Exponent Calculator 3) b58encode() - search for Bitcoin Brainwallet Base58 Encoder Do make sure you use really strong, unpredictable passphrases (30+ characters)! http:brainwallet.org can be used to check the accuracy of this calculator. Show Sample Output
This is sample output - yours may be different.
```
> echo -n "correct horse battery staple" | the-above-command
> 5KJvsngHeMpm884wtkJNzQGaCErckhHJBGFsvd3VyK5qMZXj3hS
```
7

(read -r passphrase; b58encode 80$( brainwallet_exponent "$passphrase" )$( brainwallet_checksum "$passphrase" ))

nixnax · 2014-02-18 02:50:09 1
Bitcoin Brainwallet Exponent Calculator

A bitcoin "brainwallet" is a secret passphrase you carry in your brain. The Bitcoin Brainwallet Exponent Calculator is one of three functions needed to calculate the bitcoin PRIVATE key. Roughly, the formula is exponent = sha256 (passphrase) Note that this is a bash function, which means you have to type its name to invoke it. You can check the accuracy of the results here http://brainwallet.org Show Sample Output
This is sample output - yours may be different.
```
> brainwallet_exponent "correct horse battery staple"
> c4bbcb1fbec99d65bf59d85c8cb62ee2db963f0fe106f483d9afa73bd4e39a8a

> echo -ne "correct horse battery staple" | sha256sum
> c4bbcb1fbec99d65bf59d85c8cb62ee2db963f0fe106f483d9afa73bd4e39a8a  -
```
5

function brainwallet_exponent () { printf %s "$1"|sha256sum|head -c 64; }

nixnax · 2014-02-18 01:49:09 0
Bitcoin Brainwallet Checksum Calculator

A bitcoin "brainwallet" is a secret passphrase you carry in your brain. The Bitcoin Brainwallet Exponent Calculator is the second of three functions needed to calculate a bitcoin PRIVATE key. Roughly, checksum is the first 8 hex digits of sha256(sha256(0x80+sha256(passphrase))) Note that this is a bash function, which means you have to type its name to invoke it Show Sample Output
This is sample output - yours may be different.
```
> brainwallet_checksum "correct horse battery staple"
> eb5f56e1
```
5

function brainwallet_checksum () { (o='openssl sha256 -binary'; p='printf';($p %b "\x80";$p %s "$1"|$o)|$o|sha256sum|cut -b1-8); }

nixnax · 2014-02-18 02:07:02 0
Produce a pseudo random password with given length in base 64

Of course you will have to install Digest::SHA and perl before this will work :) Maximum length is 43 for SHA256. If you need more, use SHA512 or the hexadecimal form: sha256_hex() Show Sample Output
This is sample output - yours may be different.
```
nqSj9EG1qsQ
```
1

perl -MDigest::SHA -e 'print substr( Digest::SHA::sha256_base64( time() ), 0, $ARGV[0] ) . "\n"' <length>

udog · 2010-04-30 21:45:46 0
SHA256 signature sum check of file

get the SHA256 sum signatur for a file Show Sample Output
This is sample output - yours may be different.
```
SHA256(exampleFile-0.20.1-x86_64-linux-gnu.tar.gz)= 376194f06596ecfa40331167c39bc70c355f960280bd2a645fdbf18f66527397
```
1

openssl dgst -sha256 <FILENAME>

aysadk · 2020-12-20 21:17:27 3
Bitcoin Brainwallet Private Key Calculator
This is sample output - yours may be different.
0

$ bitgen hex 12312381273918273128937128912c3b1293cb712938cb12983cb192cb1289b3 info

Label10 · 2019-03-27 21:25:29 0
Bitcoin Brainwallet Private Key Calculator
This is sample output - yours may be different.
0

(read -r passphrase; b58encode 80$( brainwallet_exponent "$passphrase" )$( brainwallet_checksum "$passphrase" ))

Jacki188 · 2019-09-15 21:31:52 0
Create a secure password using /dev/urandom and sha256
This is sample output - yours may be different.
-6

pwgen -Bs 10 1

techie · 2013-05-16 10:50:00 1

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mplayer webcam window for screencasts

When recording screencast some people like to have the image from their webcam, so the can show something, that can't be seen on the desktop. So starting mplayer with these parameters you will have a window with no frames, borders whatsoever, and selecting the window a hitting the "F" key you will bring it in fullscreen. if you want to position the frame somewhere else, you could play with the --geomeptry option where 100%:100% mean bottom right corner. The HEIGHT and WIDTH can't be changed as you like, since the most webcams support specified dimensions, so you would have to play with it to see what is supported

When was your OS installed?

shows also time if its the same year or shows year if installed before actual year and also works if /etc is a link (mac os)

intercept stdout/stderr of another process

similar to the previous command, but with more friendly output (tested on linux)

dd with progress bar and statistics to gzipped image

This is a useful command to backup an sd card with relative total size for piping to pv with a progressbar

List out classes in of all htmls in directory

Lists out all classes used in all *.html files in the currect directory. usefull for checking if you have left out any style definitions, or accidentally given a different name than you intended. ( I have an ugly habit of accidentally substituting camelCase instead of using under_scores: i would name soemthing counterBox instead of counter_box) WARNING: assumes you give classnames in between double quotes, and that you apply only one class per element.

rename anime fansubs

renames Anime Episodes to files, that can be parsed by sonarr & co

My PS1

mount an iso

mounts an ISO file to a directory on the target file system

Rename files in batch

Sorted list of established destination connections

no need grep. its redundant when awk is present.

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Commands tagged sha256 (8)

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