Cryptographic Commitments: I Promise I’m Not Changing My Answer
There are a few cryptographic primitives that sound considerably more complicated than they actually are.
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44 articles tagged Cryptography.
PKI: The Infrastructure That Everyone Needs and Nobody Wants to Think About
There are technologies that get all the attention.
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X.509 Certificates With More Than One Signature: Because You Can Never Have Too Many Cryptographic…
Post-Quantum Cryptography (PQC) is creating a rather awkward problem for PKI.
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OID4VCI: OAuth2 Comes to the Credential Issuance Problem
For all the excitement around Verifiable Credentials, there is a rather mundane problem hiding underneath the cryptography:
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Why Do Cryptographic Standards Pick Specific Elliptic Curves?
There are an almost ridiculous number of elliptic curves.
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Holder of Key vs. Proof of Possession: Two Sides of Cryptographic Identity
For years, identity protocols have used phrases such as Holder of Key, Proof of Possession, Key Binding, and Bearer almost interchangeably.
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Cryptographic Bill of Materials: The CBOM To The Industry’s SBOM
A Cryptographic Bill of Materials (CBOM) is exactly what it sounds like: an inventory of every cryptographic component used throughout an organization. If a Software Bill of Materials (SBOM) tells you what software you have, a CBOM tells you how that software is protected.
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Elliptic Curve Groups: The Mathematical Engine Behind Modern Digital Identity
If you’ve ever read a specification like WebAuthn, DID Core, SD-JWT VC, BBS Signatures, OID4VCI, or OID4VP, you’ve probably encountered references to P-256, secp256k1, Ed25519, or BLS12–381.
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Finite Fields: The Mathematics Behind Cryptography, Error Correction, and Digital Trust
Modern technology runs on mathematics that most people never see.
Read article: Finite Fields: The Mathematics Behind Cryptography, Error Correction, and Digital Trust