OFFLINE CRYPTOGRAPHIC VALIDATOR · RFC 8032

ZTDS Conformance Certificate Validator

Verify Ed25519 digital signatures, invariant conformance, and cryptographic SHA-256 build hashes in client-side memory. Executes 100% offline with zero external network egress.

Algorithm

Ed25519 (RFC 8032)

Data Privacy

0.00 Bytes Egress

Canonicalization

RFC 8785 JSON

SubtleCrypto

Web Crypto Native

Certificate Token Input ZTDS-CERT-v1

Segments: Header . Payload . Sig (64B)

0 chars Awaiting Input

Load Preset Test Tokens:

Independent CLI Verification

To verify this certificate inside an air-gapped terminal or automated CI/CD pipeline without opening a web browser:

npx ztds-verify <TOKEN_STRING>

Awaiting Certificate Token

Paste a token or select one of the test tokens on the left. Cryptographic verification is computed directly in your browser using standard Web Crypto primitives.

Root Key: MCowBQYDK2VwAyEAg3N98ZgL4Uqbu0PmqvG8KN8vUicYkgKfUNVgwlLObr4=

Audited Subject & Conformance Scope

Certificate ID

Applicant / Authority

Target Product

Assurance Level

Issued Timestamp

Expiration & Validity

Target Audit SHA-256 Digest

Four Foundational Invariants Conformance (RFC v1.0)

Invariant 1: Zero External Egress

0.00 bytes transmitted prior to sanitization.

Invariant 2: Reversible Surrogates

Context preserved for attention mechanisms.

Invariant 3: Volatile RAM Isolation

Sandboxed execution with memory zeroization.

Invariant 4: Zero Subprocessors

GDPR Article 28 DPA statutory exemption.

Signal Zero-Trust Readiness to Enterprise Buyers

Broaden network trust: share this immutable cryptographic verification on LinkedIn or X, or embed your verified badge in your repository.

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How ZTDS Cryptographic Verification Works

Designed for strict Zero-Trust environments, allowing Chief Information Security Officers, developers, and compliance auditors to independently attest software authenticity without contacting any verification server.

Deterministic JSON Canonicalization

The certificate payload is serialized strictly conforming to RFC 8785 (canonical key sorting, uniform UTF-8 normalization), ensuring byte-for-byte identical hashing across disparate programming languages and runtimes.

RFC 8032 Ed25519 Signatures

Signatures are computed over the Edwards-curve Digital Signature Algorithm (Ed25519). The 64-byte signature is immune to side-channel timing attacks and cannot be forged without the Consortium master key.

SubtleCrypto In-RAM Validation

Verification runs entirely inside browser client volatile RAM via window.crypto.subtle. 0.00 bytes of data are sent to vendor or third-party cloud infrastructure.

Direct Answer Knowledge Base

Ed25519 Cryptographic Certificate Validator FAQ

How does the ZTDS Cryptographic Certificate Validator verify conformance tokens offline? ↓

The validator parses the ZTDS-CERT-v1 token, canonicalizes the JSON payload according to RFC 8785 (JSON Canonicalization Scheme), and verifies the detached Ed25519 signature (RFC 8032) directly in browser volatile RAM using the Web Crypto API (window.crypto.subtle) with zero external server calls.

What public key is used to authenticate official ZTDS-CERT-v1 certificates? ↓

All official ZTDS conformance certificates are verified against the consortium SPKI Ed25519 root public key (MCowBQYDK2VwAyEAg3N98ZgL4Uqbu0PmqvG8KN8vUicYkgKfUNVgwlLObr4=), which is published in the open specification and machine-readable llms.txt corpus for independent air-gapped verification.

Can enterprise procurement teams verify certificates via the command line in CI/CD pipelines? ↓

Yes. Security engineers and procurement auditors can validate any certificate token or registry slug in air-gapped environments by running npx ztds-verify --strict, which exits with code 0 only when the Ed25519 signature and all four invariants are mathematically valid.

Does verifying a certificate transmit any corporate data or telemetry to ZTDS.ai? ↓

No. Certificate signature verification and A4 PDF conformance certificate rendering occur 100% locally within client browser memory, transmitting 0.00 bytes of telemetry or verification metadata over the network.