Developer Guide

  • 10/27/2020
  • Public Content


Cryptography is used by Intel® DAL applets and firmware to exchange data securely, validate its integrity, and authenticate another party. The package provides an interface to cryptographic services.
The goals of cryptography are fourfold:
  • Data Integrity – Ensure that data is created/modified by authorized parties only.
  • Secrecy/Confidentiality – Restrict access to authorized parties only.
  • Authentication – Verify the identity of an entity.
  • Non-repudiation – Verify an action or data in such a way that denying its validity is impossible.
These goals can be achieved by using one or more of the following algorithms and a confidential key:
  • Symmetric key cryptography:
      the same key is used for both encryption and decryption.
  • Public (asymmetric) key cryptography:
    • Encryption – a public key is used for encryption;  a private key is used for decryption.
    • Digital signing – a private key is used for signing;  a public key is used for verification. 
The following sections describe the cryptography algorithms that are supported by Intel DAL.

Product and Performance Information


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