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HALOWERK sicherwerk CSR Self-Signature Audit
x402
HALOWERK sicherwerk CSR Self-Signature Audit is a paid API for AI agents from sicher.halowerk.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Validates a PEM-encoded certificate signing request by verifying its self-signature and parsing all requested fields, extensions, and public key parameters via a pinned OpenSSL build.
Price / call$0.002
Success—
StatusUnknown
How this service works
Runs the pinned OpenSSL build against a submitted certificate request and answers two questions a registration authority has to settle before it signs anything: does the request carry a valid self-signature over its own body, and what exactly is being requested. The reply names the subject, the public key parameters and every requested extension as OpenSSL parses them, so a policy check compares against the parsed request rather than the text an applicant supplied.
Output
Returns whether the CSR self-signature is cryptographically valid, plus OpenSSL-parsed details including the subject distinguished name, public key algorithm and parameters, and all requested certificate extensions — giving a registration authority a trustworthy parsed view of what the applicant is requesting.
Example use cases
RA pre-signing integrity check
“Before we sign this certificate request, verify that its self-signature is intact and give me a full breakdown of the subject DN, key algorithm, and every extension it's asking for — here's the PEM.”
Policy compliance before issuance
“Our CA policy only allows RSA-2048 or ECDSA P-256 with specific SANs — can you parse this CSR and tell me exactly what key type and extensions are in it so I can check it against policy?”
Automated CSR validation pipeline
“I'm processing a batch of customer certificate requests — for this one, verify the self-signature is valid and extract all the requested fields so I can log them before forwarding to the signing queue.”
Technical details
Endpoint
POSThttps://sicher.halowerk.com/v1/oss-openssl-csr-self-signature-audit?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a deterministic, OpenSSL-backed audit of a PKCS#10 CSR before a registration authority signs it — particularly when you need both signature validity and a trusted parsed representation of the subject, key, and extensions for policy enforcement. Prefer this over client-side parsing when you cannot trust the applicant's own tooling or representation of the request.
Side effects
- Malformed or non-PEM input returns a parse error
- CSR with invalid self-signature returns a failed verification result
- CSR exceeding 262144 bytes is rejected
- Non-PKCS#10 PEM blocks (e.g. a certificate instead of a CSR) cause a parsing failure
- Payment failure (x402) blocks the request before processing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| csr_pem | string |
Tags
x402
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