https://www.taxtmi.com/notifications?id=147173 Digital signature certification standards require SHA-2 and prescribed cryptographic key lengths of 2048 or 4096 bits, while SHA-1 certificates issued before commencement remain valid until expiry. Key-use requirements mandate periodic replacement of certifying authority and subscriber keys, reasonable notice to relying parties of new signing key pairs, and maximum validity periods of ten years for certifying authority key pairs and associated certificates and three years for subscriber key pairs and associated certificates. en-us Tue, 25 Oct 2011 00:00:00 +0530 Mon, 05 Oct 2026 17:34:08 +0530 TaxTMI RSS Generator https://www.taxtmi.com/notifications?id=147173 Digital signature certification standards require SHA-2 and prescribed cryptographic key lengths of 2048 or 4096 bits, while SHA-1 certificates issued before commencement remain valid until expiry. Key-use requirements mandate periodic replacement of certifying authority and subscriber keys, reasonable notice to relying parties of new signing key pairs, and maximum validity periods of ten years for certifying authority key pairs and associated certificates and three years for subscriber key pairs and associated certificates. Notifications Indian Laws Tue, 25 Oct 2011 00:00:00 +0530 https://www.taxtmi.com/notifications?id=147173