sounisi5011 · March 28, 2024 12:34 · eric-glb · Mar 28, 2024
diff --git a/.BLAKE3 vs SHA-256 vs SHA-512 b/.BLAKE3 vs SHA-256 vs SHA-512
diff --git a/.gitignore b/.gitignore
 /node_modules/
 /package-lock.json

 /lf[1-9]G[0-9][0-9]
diff --git a/README.md b/README.md
diff --git a/b3-512sum.js b/b3-512sum.js
 const fs = require('fs');
 const process = require('process');

 const blake3 = require('blake3');

 const filenameList = process.argv.slice(2);
 for (const filename of filenameList) {
  try {
    const b3Hasher = blake3.createHash();
    const fileReadStream = fs.createReadStream(filename);
    fileReadStream.on('data', chunk => b3Hasher.update(chunk));
    fileReadStream.on('end', () => {
      const hashStr = b3Hasher.digest('hex', { length: 512/8 });
      console.log(`${hashStr}  ${filename}`);
    });
    fileReadStream.on('error', error => { throw error });
  } catch (error) {
    process.exitCode = 1;
    console.error(error);
  }
 }
diff --git a/b3sum.js b/b3sum.js
 const fs = require('fs');
 const process = require('process');

 const blake3 = require('blake3');

 const filenameList = process.argv.slice(2);
 for (const filename of filenameList) {
  fs.createReadStream(filename)
    .pipe(blake3.createHash())
    .on('data', hash => console.log(`${hash.toString('hex')}  ${filename}`))
    .on('error', error => {
      process.exitCode = 1;
      console.error(error);
    });
 }
diff --git a/create-large-files.sh b/create-large-files.sh
 #!/bin/bash

 # Generates 1 GiB files with random content.

 dd if=/dev/urandom of=./lf1G01 bs=1 seek=1023m count=1m
 dd if=/dev/urandom of=./lf1G02 bs=1 seek=1023m count=1m
 dd if=/dev/urandom of=./lf1G03 bs=1 seek=1023m count=1m
 dd if=/dev/urandom of=./lf1G04 bs=1 seek=1023m count=1m
 dd if=/dev/urandom of=./lf1G05 bs=1 seek=1023m count=1m
 dd if=/dev/urandom of=./lf1G06 bs=1 seek=1023m count=1m
 dd if=/dev/urandom of=./lf1G07 bs=1 seek=1023m count=1m
 dd if=/dev/urandom of=./lf1G08 bs=1 seek=1023m count=1m
 dd if=/dev/urandom of=./lf1G09 bs=1 seek=1023m count=1m
 dd if=/dev/urandom of=./lf1G10 bs=1 seek=1023m count=1m
diff --git a/package.json b/package.json
 {
  "private": true,
  "dependencies": {
    "blake3": "2.1.4"
  }
 }
command	exec time	hash length
`node ./b3-512sum.js [FILE]...`	18.404s	64 bytes
`node ./b3sum.js [FILE]...`	19.230s	32 bytes
`sha512sum [FILE]...`	49.112s	64 bytes
`sha256sum [FILE]...`	1m18.633s	32 bytes
	const fs = require('fs');
	const process = require('process');

	const blake3 = require('blake3');

	const filenameList = process.argv.slice(2);
	for (const filename of filenameList) {
	try {
	const b3Hasher = blake3.createHash();
	const fileReadStream = fs.createReadStream(filename);
	fileReadStream.on('data', chunk => b3Hasher.update(chunk));
	fileReadStream.on('end', () => {
	const hashStr = b3Hasher.digest('hex', { length: 512/8 });
	console.log(`${hashStr} ${filename}`);
	});
	fileReadStream.on('error', error => { throw error });
	} catch (error) {
	process.exitCode = 1;
	console.error(error);
	}
	}
	#!/bin/bash

	# Generates 1 GiB files with random content.

	dd if=/dev/urandom of=./lf1G01 bs=1 seek=1023m count=1m
	dd if=/dev/urandom of=./lf1G02 bs=1 seek=1023m count=1m
	dd if=/dev/urandom of=./lf1G03 bs=1 seek=1023m count=1m
	dd if=/dev/urandom of=./lf1G04 bs=1 seek=1023m count=1m
	dd if=/dev/urandom of=./lf1G05 bs=1 seek=1023m count=1m
	dd if=/dev/urandom of=./lf1G06 bs=1 seek=1023m count=1m
	dd if=/dev/urandom of=./lf1G07 bs=1 seek=1023m count=1m
	dd if=/dev/urandom of=./lf1G08 bs=1 seek=1023m count=1m
	dd if=/dev/urandom of=./lf1G09 bs=1 seek=1023m count=1m
	dd if=/dev/urandom of=./lf1G10 bs=1 seek=1023m count=1m