The Public Key Infrastructure (PKI) in the country is realized through the establishment of licensed CAs. The Public Key Infrastructure of India comprises the CCA and the CAs, with CCA being at the root of the trust chain in India. CCA certifies the CA Public Keys and issue certificate.
The Indian IT Act 2000 accords legal recognition to records in electronic for, prescribes Digital Signatures based upon asymmetric key cryptography and hash functions as the method of authenticating electronic records. Under the IT Act 2000, the Office of the Controller of Certifying Authorities is set up with the responsibility for setting up and operating the National Root CA, the National Repository and for licensing, regulating and overseeing licensed Certifying Authorities. DCs issued by any CA irrespective of whether it is in the private or Government sector are all legally valid under the IT Act.