To comply with CA/Browser Forum’s SC067, TuringSign is implementing Multi-Perspective Issuance Corroboration (MPIC) for Domain Control Validation (DCV) and Certificate Authority Authorization (CAA) checks.
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What is MPIC?
Multi-Perspective Issuance Corroboration (MPIC) is a process defined in the CA/Browser Forum Baseline Requirements (Section 3.2.2.9) in which the results of domain validation and CAA checks performed by one network location (the Primary Network Perspective) must be confirmed by at least one or more geographically separate network locations before a certificate can be issued.
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MPIC Rule:
Domain Control Validation (DCV) and Certification Authority Authorization (CAA) checks must be performed from at least two independent network perspectives that are geographically separated by a minimum of 500 kilometers, in accordance with CA/Browser Forum Baseline Requirements (Section 3.2.2.9).
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MPIC Phased Implementation Timeline
*Â RIR = Regional Internet Registry (IPE, APNIC, ARIN, AfriNIC, LACNIC)Â
*Â Source: CA/Browser Forum Baseline Requirements, Section 3.2.2.9Â
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 Impact for SSL/TLS certificates DCV Methods
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 How to prepare
- Certificates issued before February 18, 2025, will remain valid until they expire or are revoked.
- TuringSign will not be issued if multi-perspective checks fail to corroborate the primary Domain Control Validation (DCV) or Certification Authority Authorization (CAA) records, starting no later than September 15, 2025.
- Customers should ensure their DNS configurations are correctly set up and accessible from multiple network locations to meet the validation requirements.
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