New Delhi:Indian digital certification authority eMudhra has revealed that private keys associated with its certificates have been compromised, which verify trusted digital assets and ensure secure online data transmission, according to an advisory from the cybersecurity watchdog Cert-In. Noting that eMudhra operates its Indian services, including eSign, and a global certificate business, government sources said that the problem arose in the global business, and that the impact on India is expected to be "limited".