This article explains the major differences between TPM 1.2 and TPM 2.0

Trusted Platform Module (TPM) chips come in several versions, with each generation and type offering unique features and capabilities.

TPM 1.2 and TPM 2.0 differ mainly in security features and compatibility. While TPM 1.2 relies on the older SHA-1 algorithm and is limited to basic security applications, TPM 2.0 supports stronger algorithms like SHA-256 and RSA-2048, offering better cryptographic flexibility and advanced features like Secure Boot and BitLocker. TPM 2.0 also aligns with modern security standards, making it essential for newer systems, including those running Windows 11, where robust encryption and compatibility are critical.

Here’s a breakdown of the main TPM variations:

1. TPM 1.2 vs. TPM 2.0

• TPM 1.2:

  • Released in 2003 as the initial standard.
  • Uses the SHA-1 hashing algorithm, which is considered less secure by modern standards.
  • Supports limited algorithms and lacks flexibility in cryptographic standards.
  • Often used for specific security applications, like simple authentication and encryption.

• TPM 2.0:

  • Introduced in 2014 with broader and stronger security features.
  • Supports SHA-256 (more secure than SHA-1) as well as other advanced algorithms, providing better cryptographic flexibility.
  • More versatile, supporting newer applications, such as Secure Boot, BitLocker, and modern OS requirements.
  • Required by Windows 11 for enhanced security.

• Key Differences:

  • Algorithm Support: TPM 2.0 has wider support for cryptographic algorithms, including SHA-256 and RSA 2048.
  • Compatibility: TPM 2.0 is more compatible with modern hardware and security standards.
  • Enhanced Security: Offers better resistance to vulnerabilities and stronger encryption options.