🔐 Hash Generator

Description

Algorithm Information

MD5 (Message Digest 5)
MD5: Message Digest Algorithm 5 - Fast but deprecated for security
SHA-1 (Secure Hash Algorithm 1)
SHA-1: Secure Hash Algorithm 1 - 160-bit, legacy use only
SHA-256 (Recommended)
SHA-256: Part of SHA-2 family - Industry standard for security
SHA-512 (High Security)
SHA-512: Maximum security in SHA-2 family - Best for sensitive data
SHA3-256/512 (Modern)
SHA3: Latest NIST standard based on Keccak algorithm - High security for modern applications
Keccak-256 (Ethereum)
Blockchain Hash: Keccak-256 used in Ethereum blockchain system
CRC32 (Checksum)
CRC32: Cyclic Redundancy Check - For data integrity verification
SM3 (Chinese National Standard)
SM3: Chinese national standard - 256-bit cryptographic hash
Security Considerations
⚠️ MD5 and SHA-1 are deprecated for security applications due to collision vulnerabilities

Select Hash Algorithms

Select one or more algorithms to generate multiple hashes simultaneously

Input Data

Input length: 0

Algorithm Details & Implementation Examples

Security Level
Secure
Performance
Good
Output Size
256 bits (64 hex chars)

Description

SHA-256 is part of the SHA-2 family and produces a 256-bit hash value. It's currently the industry standard for cryptographic hashing, widely used in blockchain, digital certificates, and secure communications.

Use Cases & Applications

Password Storage
Digital Signatures
Blockchain Technology
SSL/TLS Certificates

Implementation Examples

// Node.js SHA-256 Implementation (Recommended)
const crypto = require('crypto');

function calculateSHA256(text) {
    const hash = crypto.createHash('sha256');
    hash.update(text, 'utf8');
    return hash.digest('hex');
}

// Usage example
const text = "Hello World";
const result = calculateSHA256(text);
console.log(`SHA-256: ${result}`);

// Alternative: One-liner for simple cases
const quickHash = crypto.createHash('sha256')
    .update(text, 'utf8')
    .digest('hex');

관련 JSON 도구

더 강력한 JSON 처리 도구 탐색

Symmetric Encryption Tool

Encrypt and decrypt data using symmetric encryption algorithms like AES, SM4, and ChaCha20

Asymmetric Encryption Tool

Generate key pairs, encrypt/decrypt data, and create digital signatures using RSA, ECC, SM2, and other public-key cryptography algorithms

JSON 포매터

실시간 구문 검사와 오류 감지로 JSON 데이터를 포맷, 미화, 압축합니다.

JSON 검증기

상세 오류 리포트와 분석으로 JSON 구문과 구조를 검증합니다.

JSON 편집기

강력한 온라인 JSON 편집기: 포맷팅, 미화, 검증, 압축, 트리/테이블/시각화 뷰, 온라인 파싱, CSV/Excel 내보내기, 다운로드 등을 지원합니다.

JSON→XML 변환기

구조 매핑과 타입 처리를 자동으로 지원하는 JSON→XML 변환 도구입니다.

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