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Cryptographic utilities for encryption, hashing, key generation, and secure random data. Supports AES-GCM, RSA, ECDSA, SHA-256/384/512, Argon2, and modern cryptographic standards.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
| name | crypto |
| description | Cryptographic utilities for encryption, hashing, key generation, and secure random data. Supports AES-GCM, RSA, ECDSA, SHA-256/384/512, Argon2, and modern cryptographic standards. |
Modern cryptographic utilities for secure data handling.
node /path/to/skills/crypto/scripts/hash.js "data to hash" --algorithm sha256
node /path/to/skills/crypto/scripts/encrypt.js "secret message" --password "mypassword"
node /path/to/skills/crypto/scripts/random.js --bytes 32 --encoding hex
Cryptographic hashing with multiple algorithms.
Usage:
node hash.js <data> [OPTIONS]
Options:
--algorithm <alg> - Hash algorithm: sha256, sha384, sha512, sha3-256 (default: sha256)--encoding <enc> - Output encoding: hex, base64, base64url (default: hex)--file - Treat input as file path--hmac <key> - Generate HMAC with keySymmetric encryption using AES-256-GCM.
Usage:
node encrypt.js <data> --password <password>
node encrypt.js <data> --key <hex_key>
Options:
--password <pwd> - Derive key from password (PBKDF2)--key <hex> - Use raw 256-bit key (hex encoded)--output <file> - Save encrypted data to fileDecrypt AES-256-GCM encrypted data.
Usage:
node decrypt.js <encrypted> --password <password>
node decrypt.js --file <path> --key <hex_key>
Cryptographically secure random data generation.
Usage:
node random.js [OPTIONS]
Options:
--bytes <n> - Number of bytes (default: 32)--encoding <enc> - Output: hex, base64, base64url, uuid, words (default: hex)--count <n> - Generate multiple valuesGenerate cryptographic keys and key pairs.
Usage:
node keygen.js <type> [OPTIONS]
Types:
aes - AES-256 symmetric keyrsa - RSA key pair (2048, 4096 bits)ecdsa - ECDSA key pair (P-256, P-384)ed25519 - Ed25519 key pairpassword - Password hash (bcrypt/argon2 style)Digital signatures with RSA or ECDSA.
Usage:
node sign.js <data> --key <private_key_file>
node sign.js --verify <signature> --key <public_key_file> <data>
node hash.js important-document.pdf --file --algorithm sha256
node encrypt.js '{"api_key":"sk-..."}' --password "strong-password-here"
node random.js --bytes 24 --encoding base64url
node random.js --bytes 64 --encoding base64
node keygen.js ecdsa --curve P-256 --output keys/
node hash.js "message" --hmac "shared-secret" --algorithm sha256
{
"algorithm": "sha256",
"hash": "a591a6d40bf420404a011733cfb7b190d62c65bf0bcda32b57b277d9ad9f146e",
"encoding": "hex"
}
{
"algorithm": "aes-256-gcm",
"iv": "base64_iv",
"salt": "base64_salt",
"tag": "base64_tag",
"ciphertext": "base64_encrypted_data"
}
{
"type": "ecdsa",
"curve": "P-256",
"publicKey": "-----BEGIN PUBLIC KEY-----...",
"privateKey": "-----BEGIN PRIVATE KEY-----..."
}
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