AzelusLightvale-ComfyUI-ARG-Toolkit/web/docs/RSAPrivateKeyFormat.md

RSA Private Key Bytes

Generates an RSA private key and serializes it.

Source library: cryptography

Overview

RSA is a widely used public-key cryptosystem for secure data transmission. This node generates a new RSA private key with a specified key size and serializes it into bytes. The private key can optionally be encrypted with a password for secure storage.

Parameters

• public_exponent: The public exponent (e) for the key. Commonly 65537.
• key_size: The size of the key in bits (512 to 8192, in steps of 128). Default is 2048.
• encoding: The encoding format for the serialized key (PEM or DER).
• formatting: The key format to serialize in.
  • PKCS8: Modern standard format.
  • OpenSSH: OpenSSH private key format (requires PEM encoding).
  • TraditionalOpenSSL: Legacy SEC1 format.
• encryption: How to encrypt the private key (Best Available or None).
• encryption_password: (Optional) The password to use for encrypting the private key. Required when encryption is set to "Best Available".

Outputs

• key_object: The private key object (KEYOBJ), which can be passed to signing and decryption nodes.
• private_key: The serialized private key as a BYTESLIKE object.
• private_numbers: The private key numbers as a NUMOBJ object.

Additional Considerations

• Always protect private keys. Use encryption when storing or transmitting them.
• Larger key sizes provide more security but take longer to generate.