Runs the pinned OpenSSL build's parameter checks over a supplied finite-field Di
Runs the pinned OpenSSL build's parameter checks over a supplied finite-field Diffie-Hellman group and reports whether it passes, along with the detail output that says why. The point is to catch parameters that are syntactically fine but cryptographically unsafe before they reach a handshake: a non-prime modulus, a generator of small order, a group below the build's security level.
Answeringour last check, 2026-10-24
1 of 1checks answered this week
911 msmedian answer time
$0.003listed price per call
$0.003price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://sicher.halowerk.com/v1/oss-openssl-dh-group-check
| Category | Everything else |
|---|---|
| Provider host | sicher.halowerk.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-24 | valid payment request | 402 | $0.003 | 911 ms |
Example input (from the provider)
{
"body": {
"parameters_pem": "-----BEGIN DH PARAMETERS-----\nMIIBCAKCAQEA//////////+t+FRYortKmq/cViAnPTzx2LnFg84tNpWp4TZBFGQz\n+8yTnc4kmz75fS/jY2MMddj2gbICrsRhetPfHtXV/WVhJDP1H18GbtCFY2VVPe0a\n87VXE15/V8k1mE8McODmi3fipona8+/och3xWKE2rec1MKzKT0g6eXq8CrGCsyT7\nYdEIqUuyyOP7uWrat2DX9GgdT0Kj3jlN9K5W7edjcrsZCwenyO4KbXCeAvzhzffi\n7MA0BM0oNC9hkXL+nOmFg/+OTxIy7vKBg8P+OxtMb61zO7X8vC7CIAXFjvGDfRaD\nssbzSibBsu/6iGtCOGEoXJf//////////wIBAg==\n-----END DH PARAMETERS-----\n"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"parameters_pem": {
"maxLength": 262144,
"minLength": 1,
"type": "string"
}
},
"required": [
"parameters_pem"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}