der1.7 KB

SAMPLE PKCS#7 Detached Signature (DER)

A detached PKCS#7 SignedData over signed-payload.txt, built without signed attributes so the bytes are reproducible. The content is not embedded, so verification needs both files — exactly the failure mode people hit with .p7s email attachments.

Certificate & key testing

Preview — schema + first 7 rowsder

Field	Value
Type	PKCS#7 SignedData, detached (DER)
Signer	CN=leaf.pki.sample.example,O=Novus Examples SAMPLE PKI,C=ZZ
Serial	0x701001
Digest algorithm	SHA-256
Signed attributes	none
Covers	signed-payload.txt
Bytes	1791

PUBLISHED SAMPLE detached signature — signed by the fictional SAMPLE leaf.

Specifications

Format: PKCS#7 SignedData, detached (DER)
Digest: SHA-256
Signature: RSA PKCS#1 v1.5
Signed Attributes: none (deterministic bytes)
Signer: CN=leaf.pki.sample.example
Covers: signed-payload.txt
Sample Only: true
Seed: 70117

Testing contract

Expected to pass

Scenario: Verify this signature against signed-payload.txt with the SAMPLE root trusted, then verify it alone.
Expected result: Verification succeeds when the payload is supplied and fails with a missing-content error when it is not.

What is a .der file?

DER (Distinguished Encoding Rules) is the binary encoding of an X.509 certificate (or other ASN.1 structure) — the same data a PEM file Base64-wraps, without the text armour. A .der certificate is compact and byte-exact, common in Java keystores and Windows tooling.

How to use this file

Use an example .der certificate to test binary X.509 parsers, ASN.1 decoders, and DER-to-PEM converters, or to confirm a tool reads raw certificate bytes. Published sample certificate, not a real identity.

How to use this file for testing

“SAMPLE PKCS#7 Detached Signature (DER)” is a deterministic Novus Examples fixture for Certificate & key testing. Self-signed X.509 certificates (PEM, CRT, DER), a CSR, RSA and Ed25519 keys, an SSH public key, a PKCS#12 bundle, and an htpasswd file — all published sample-only material, for testing certificate parsers, TLS tooling, keystore importers, and PEM/DER decoders.

Documented properties for this file: seed 70117 · PKCS#7 SignedData, detached (DER). Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.

Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.

This is published, SAMPLE-only security material — never a real secret. Point certificate, key, or token parsers at it, test PEM/DER decoding and PKCS handling, and confirm your tooling reads the documented fields; any sample password is printed on this page.

This is a published, sample-only certificate/key. Parse it, verify the chain or signature, and test PEM↔DER conversion — never deploy it anywhere real.