Private CA
A certificate authority that an organization builds and operates itself, with its root certificate trusted only through internal distribution. It gives full control over certificate templates and extension policies and is not subject to changes in public CA policy.
Timeline (last 90 days)
For mTLS scenarios that require client authentication, migration directions include using a private CA, introducing dedicated identity infrastructure such as SPIFFE, and assessing whether mTLS is really needed.
Using a private CA allows full control over certificate extension fields and the trust chain, unaffected by changes in public CA policies, but requires taking on the complexity of CA operations, certificate distribution and revocation oneself.
A private CA is a certificate authority that an organization builds and operates itself, whose root certificate is distributed and trusted only internally and does not enter public trust stores.
Common implementations of private CAs include lightweight CAs based on OpenSSL/Vault, cloud provider-managed private CA services (such as AWS Private CA and Azure Trusted Signing), and enterprise PKI platforms.
The main costs of a private CA lie in CA key protection, certificate revocation (CRL/OCSP) and high-availability operations; if mismanaged, private key leakage will cause the entire internal trust system to fail.
All Facts (5)
For mTLS scenarios that require client authentication, migration directions include using a private CA, introducing dedicated identity infrastructure such as SPIFFE, and assessing whether mTLS is really needed.
50%UnverifiedUsing a private CA allows full control over certificate extension fields and the trust chain, unaffected by changes in public CA policies, but requires taking on the complexity of CA operations, certificate distribution and revocation oneself.
50%UnverifiedA private CA is a certificate authority that an organization builds and operates itself, whose root certificate is distributed and trusted only internally and does not enter public trust stores.
50%UnverifiedCommon implementations of private CAs include lightweight CAs based on OpenSSL/Vault, cloud provider-managed private CA services (such as AWS Private CA and Azure Trusted Signing), and enterprise PKI platforms.
50%UnverifiedThe main costs of a private CA lie in CA key protection, certificate revocation (CRL/OCSP) and high-availability operations; if mismanaged, private key leakage will cause the entire internal trust system to fail.
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