Unverified50% confidenceFactExact time
SPKI is a standard field in X.509 certificates that follows the ASN.1 SubjectPublicKeyInfo structure and contains the public key algorithm identifier and the public key itself.
1
Sources
50%
Confidence
Long-term
Relevance
10/20/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedTrust policies typically use a hash of the SPKI (such as SHA-256) as a fixed identifier for the public key, a technique known as "public key pinning".74% similarUnverifiedWhen validating a certificate chain, Go's crypto/x509 package computes the SPKI hash of each certificate in the chain and compares it against a built-in blacklist, terminating validation upon a match.67% similarUnverifiedRejecting specific SPKIs this time is a continuation of Go's proactive defense strategy, but being precise down to the public key level means that even if a CA as a whole remains trusted, its specific public keys can be individually marked as untrusted.66% similarUnverifiedSupabase has two types of keys: the publishable key (formerly called anon) is intended for the browser and is constrained by row-level security, while the secret key (formerly called service_role) completely bypasses row-level security.63% similarUnverifiedX.509 certificate chains and the SPIFFE/SPIRE workload identity framework provide technical references for the traceability of delegation chains.60% similar
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