Security & Network
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MD5 ハッシュ生成Compute the MD5 digest of any string.SHA-1 ハッシュ生成Compute the SHA-1 digest of any string.SHA-384 ハッシュ生成Compute the SHA-384 digest of any string.SHA-512 ハッシュ生成Compute the SHA-512 digest of any string.HMAC 生成Create keyed HMAC signatures with SHA-256/384/512.CRC32 チェックサムCalculate the CRC32 checksum of text or files.Adler-32 チェックサムCompute the fast Adler-32 checksum used by zlib.ハッシュ Type 識別Guess which algorithm produced a hash from its length, encoding and character set.CRC-16 計算Compute CRC-16 in six variants: CCITT-FALSE, XMODEM, KERMIT, MODBUS, X.25 and DNP.FNV-1a ハッシュCompute the Fowler-Noll-Vo non-cryptographic hash in 32, 64 or 128 bits.MurmurHash3 計算Compute MurmurHash3 x86_32 or x86_128 with a configurable seed.CRC-16 MODBUS 計算Compute the CRC-16/MODBUS checksum used by RS-485 and industrial PLC protocols.SnefruSnefru is a cryptographic hash function invented by Ralph Merkle in 1990 while working at Xerox PARC. The function supports 128-bit and 256-bit output. It was named after the Egyptian Pharaoh Sneferu, continuing the tradition of the Khufu a
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AES 復号Decrypt AES-GCM/CBC payloads produced by the AES Encrypt tool.RSA Key Pair 生成Generate 2048/4096-bit RSA keys and export them as JWK.XOR 暗号Encrypt or decrypt bytes with a repeating XOR key.RC4 暗号化Classic RC4 stream cipher — for study and legacy interop.Vigenere 暗号Polyalphabetic keyword cipher, encrypt and decrypt.Affine 暗号 EncodeThe Affine cipher is a type of monoalphabetic substitution cipher, wherein each letter in an alphabet is mapped to its numeric equivalent, encrypted using simple mathematical function, (ax + b) % 26 , and converted back to a letter.Bifid 暗号 DecodeThe Bifid cipher is a cipher which uses a Polybius square in conjunction with transposition, which can be fairly difficult to decipher without knowing the alphabet keyword.Bifid 暗号 EncodeThe Bifid cipher is a cipher which uses a Polybius square in conjunction with transposition, which can be fairly difficult to decipher without knowing the alphabet keyword.Cetacean 暗号 DecodeDecode Cetacean Cipher input. e.g. EEEEEEEEEeeEeEEEEEEEEEEEEeeEeEEe becomes hiCetacean 暗号 EncodeConverts any input into Cetacean Cipher. e.g. hi becomes EEEEEEEEEeeEeEEEEEEEEEEEEeeEeEEeRailFence 暗号 DecodeDecodes Strings that were created using the Rail fence Cipher provided a key and an offsetRailFence 暗号 EncodeEncodes Strings using the Rail fence Cipher provided a key and an offsetSIGABAEncipher/decipher with the WW2 SIGABA machine. SIGABA, otherwise known as ECM Mark II, was used by the United States for message encryption during WW2 up to the 1950s. It was developed in the 1930s by the US Army and Navy, and has up to thiTypexEncipher/decipher with the WW2 Typex machine. Typex was originally built by the British Royal Air Force prior to WW2, and is based on the Enigma machine with some improvements made, including using five rotors with more stepping points and WhirlpoolWhirlpool is a cryptographic hash function designed by Vincent Rijmen (co-creator of AES) and Paulo S. L. M. Barreto, who first described it in 2000. Several variants exist: Whirlpool-0 is the original version released in 2000. Whirlpool-T
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ドメイン RDAP WHOIS 一覧Fetch registrar, status and expiry data via RDAP.HTTP Request ヘッダー検査See exactly which headers your client sends.ポート数値一覧Find the service behind a port number, or the port behind a service name, with the IANA class.IP Address 抽出Pull every IPv4 address out of a log file, packet capture summary or config dump, deduplicated.URL 抽出Find and list every http/https URL in unstructured text, one per line, deduplicated.ParseUDPParses a UDP header and payload (if present).
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IPv6 Address 展開Expand abbreviated IPv6 to the full 8-group form.IPv6 Address 圧縮Compress IPv6 to its shortest RFC 5952 form.IP to 10 進変換Convert IPv4 addresses to 32-bit integers and back.10 進 to IP 変換Turn a packed integer back into dotted-quad IPv4.MAC Address 検証Validate MAC formats and inspect unicast/multicast and admin bits.
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Strong パスワード生成Crypto-random passwords with full policy control.JWT デコードInspect JWT header, payload and signature metadata.
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パスフレーズ生成Diceware-style memorable passphrases.パスワード Strength テストEstimate entropy and crack-time of a password.API Key 生成Random hex / Base64 secrets of any length.基本 Auth Header 生成Build and decode Authorization: Basic headers.チェックサム検証Compare a file hash against the published digest.Secret スキャンFind leaked API keys, tokens, private keys, JWTs and connection strings in config files, logs or code.PII 秘匿化Mask emails, phone numbers, SSNs, card numbers, IPs, IBANs, MACs and JWTs in logs before sharing them.TOTP Code 生成Generate RFC 6238 time-based one-time passwords from a Base32 secret, with the otpauth URI.JWT 署名検証Decode a JWT and verify its HS256 signature locally, with exp/nbf/iat claim checks.ToBech32Bech32 is an encoding scheme primarily used for Bitcoin SegWit addresses (BIP-0173). It uses a 32-character alphabet that excludes easily confused characters (1, b, i, o) and includes a checksum for error detection. Bech32m (BIP-0350) is an