セキュリティ & 暗号化 ツール

AES encryption and decryption

Generate and sign JWT tokens

Generate HS/RS keys for JWT

MD5, SHA hash generation

Secure password generator

Bcrypt password hashing

HMAC message authentication codes

OTP one-time passwords

HTTP Basic Auth helper

Mask or obfuscate strings

Analyze password strength

Generate BIP39 mnemonics

AES/Base64 utilities

Inspect regex for performance and ReDoS risks

Build Content Security Policy headers

Generate Subresource Integrity hashes

Detect exposed tokens and API keys in local text

Encrypt and decrypt .env secrets

Generate and inspect SSH keys

Decode SAML requests/responses

OAuth 2.0 PKCE helper

Decode WebAuthn payloads

Convert certificate formats between PEM and DER