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National Repository : NRDC The CCA maintains the following repositories : National Repository of Digital Certificates Certificate Suspension and Revocation List In accordance with Section 20 of the IT Act, all Certificates and CRLs issued by all the licensed CAs are contained in the NRDC. This also contains the Certificates and CRLs issued by the CCA through its RCAI. Relying parties can verify the CAs' public keys from the NRDC.

PKI Standards notified in India Public-key cryptography Asymmetric Cryptosystem - RSA Diffie-Hellman Public key Cryptography Elliptical Curve Discrete Logarithm (EC) systems Digital Signature Standards MD5-Hashing Algorithms SHA-1 -Hashing Algorithms DSA, Signature Algorithm RSA Signature Algorithm Directory Services (LDAP ver 3) X.500 for publication of Public Key Certificates and Certificate Revocation Lists X.509 version 3 Certificates as specified in ITU RFC 1422 X.509 version 2 Certificate Revocation Lists Public-key Cryptography Standards (PKCS) PKCS#1 - PKCS#15 Federal Information Processing Standards (FIPS) FIPS 180-1, Secure Hash Standard (SHA) FIPS 186-1, Digital Signature Standard (DSS) FIPS 140-1 level 3 and above, Security Requirement for Cryptographic Modules Elliptic Curve (EC) systems

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