Here is a complete scheme on the role of public and private keys in safety, together with some examples:
Public key
A public key is used to sign the data, making it tampering proof. It is like a digital identity card that shows that you have the right to access specific data.
- Use: Sign and -mail, documents and other digital files.
- Purpose: guarantee the authenticity and integrity of the data.
- Example: When sending an e -mail with an attached public key, the recipient can check the sender’s identity using their private key to decrypt the encrypted message.
private key
A private key is used for encryption. It is like a secret code that only the owner can decipher.
- Use: Data encryption, making unauthorized parts illegible.
- Purpose: protect sensitive information from access or modified without authorization.
- Example: When you archive sensitive financial information on your computer, use a private key to encrypt data and keep them confidential. Anyone who has access to your device will need both public and private keys to read encrypted data.
CHAIR of Keys
A key couple consists of a public key and a private key. The public key is used for the signature, while the private key is used for encryption.
- Use: sign and -mail with a public key and encrypt sensitive information with a private key.
- Purpose: ensure safe communication and protect sensitive data.
- Example: When you want to send an E -mail signed by the digital certificate, use both the public key (sent via e -mail) and the private key (maintained on the device).
Keys Management
The management of the keys refers to the storage, management and distribution process safely.
- Use: storage in a sure way of sensitive data, such as passwords and encryption keys.
- Purpose: prevent unauthorized access to sensitive information.
- Example: use a safe password manager to store complex passwords and related secrets (e.g. private key).
Best Practice
To ensure the safety of cryptographic keys:
- Store Keys safely
: use a combination of storage solutions based on hardware and software, such as encryption algorithms and password managers.
- Use strong passwords
: Choose univocal and complex passwords for all accounts and systems that require authentication.
- Keep the keys updated : Update sensitive data regularly and reflect to guarantee its security.
- Use safe key exchange protocols : Use established protocols, such as Diffie-Hellman or Swim-Hellman elliptical curve, when we exchange cryptographic keys with others.
By following these best practices and understanding the role of public and private keys in security, you can protect your sensitive data and guarantee the confidentiality and integrity of your digital communication.