Intel® Enhanced Privacy ID
Fleeting- External reference: https://software.intel.com/content/www/us/en/develop/articles/intel-enhanced-privacy-id-epid-security-technology.html
Intel® Enhanced Privacy ID (EPID) Security Technology
Intel® Enhanced Privacy Identification (EPID) security scheme, which helps to specifically address two device level security issues
From the sgx documentation.
a group signature scheme, which allows platforms to cryptographically sign objects while at the same time preserving the signer’s privacy.