Mail dk

You're looking for information about DK (DomainKeys) and DKIM (DomainKeys Identified Mail)!

DK and DKIM are email authentication protocols designed to prevent email spoofing and spamming. Here's a brief overview:

DK (DomainKeys)

DK is an older email authentication protocol developed by Yahoo! in 2003. It uses a public-private key pair to verify the authenticity of an email message. The sender's domain generates a digital signature using a private key, which is then verified by the recipient's domain using the corresponding public key.

DKIM (DomainKeys Identified Mail)

DKIM is an updated version of DK, developed by Yahoo! and Cisco Systems in 2007. DKIM is a more robust and widely adopted protocol that uses a similar public-private key pair mechanism as DK. However, DKIM also includes additional features, such as:

  1. Selector: A unique identifier for each public key, making it easier to rotate and update keys.
  2. Algorithm: Supports multiple cryptographic algorithms, including RSA and ECDSA.
  3. Canonicalization: Ensures that the email message is processed in a consistent manner, reducing the risk of errors or tampering.

DKIM is widely supported by email providers and is considered a best practice for email authentication.

How DKIM works

Here's a high-level overview of the DKIM process:

  1. Key generation: The sender's domain generates a private key and a corresponding public key.
  2. Email signing: The sender's domain uses the private key to generate a digital signature for the email message.
  3. Email transmission: The signed email message is transmitted to the recipient's domain.
  4. Verification: The recipient's domain uses the public key to verify the digital signature and ensure that the email message has not been tampered with or spoofed.

By using DKIM, email senders can demonstrate the authenticity of their emails and help prevent spam and phishing attacks.

I hope this helps! Let me know if you have any further questions.