SHA-384ハッシュジェネレーター

// Works in all modern browsers and Node.js 18+
async function sha384(text) {
  const data = new TextEncoder().encode(text)
  const hashBuffer = await crypto.subtle.digest('SHA-384', data)
  const hashArray = Array.from(new Uint8Array(hashBuffer))
  return hashArray.map(b => b.toString(16).padStart(2, '0')).join('')
}

await sha384('hello world')
// → "fdbd8e75a67f29f701a4e040385e2e23986303ea10239211af907fcbb83578b3e417cb71ce646efd0819dd8c088de1bd"

// Node.js (built-in crypto module)
const crypto = require('crypto')
crypto.createHash('sha384').update('hello world').digest('hex')
// → "fdbd8e75a67f29f701a4e040385e2e23986303ea10239211af907fcbb83578b3e417cb71ce646efd0819dd8c088de1bd"

import hashlib

# Basic SHA-384 hash
result = hashlib.sha384(b'hello world').hexdigest()
print(result)
# → "fdbd8e75a67f29f701a4e040385e2e23986303ea10239211af907fcbb83578b3e417cb71ce646efd0819dd8c088de1bd"

# Hash a string with Unicode characters
text = 'café ☕'
hashlib.sha384(text.encode('utf-8')).hexdigest()
# → 96-character hex string

# Hash a file in chunks (memory-efficient)
with open('release.tar.gz', 'rb') as f:
    sha = hashlib.sha384()
    for chunk in iter(lambda: f.read(8192), b''):
        sha.update(chunk)
    print(sha.hexdigest())

package main

import (
    "crypto/sha512"
    "fmt"
)

func main() {
    data := []byte("hello world")
    // SHA-384 lives in the crypto/sha512 package
    hash := sha512.Sum384(data)
    fmt.Printf("%x\n", hash)
    // → fdbd8e75a67f29f701a4e040385e2e23986303ea10239211af907fcbb83578b3e417cb71ce646efd0819dd8c088de1bd
}

# Using sha384sum (Linux)
echo -n "hello world" | sha384sum
# → fdbd8e75a67f29f701a4e040385e2e23...  -

# macOS
echo -n "hello world" | shasum -a 384
# → fdbd8e75a67f29f701a4e040385e2e23...  -

# Using openssl (cross-platform)
echo -n "hello world" | openssl dgst -sha384
# → SHA2-384(stdin)= fdbd8e75a67f29f701a4e040385e2e23986303ea...

# Verify a file checksum
sha384sum myfile.bin > checksum.txt
sha384sum -c checksum.txt
# → myfile.bin: OK