There are major differences between the two, including cryptography used, outlined on the Wikipedia article - https://en.wikipedia.org/wiki/Trusted_Platform_Mod

There are major differences between the two, including cryptography used, outlined on the Wikipedia article - https://en.wikipedia.org/wiki/Trusted_Platform_Module#Version_differences https://en.wikipedia.org/wiki/Trusted_Platform_Module#Versio.... 2.0 is required for Microsoft's purposes. Here's one of them: https://learn.microsoft.com/en-us/windows/security/hardware-security/tpm/tpm-fundamentals#tpm-20-anti-hammering https://learn.microsoft.com/en-us/windows/security/hardware-...