Description
Get a signature for a given operational certificate and a cold key path.
The signing algorithm is the same as for transaction witnesses.
The key derivation scheme for pool cold keys is described in CIP 1853 - HD Stake Pool Cold Keys for Cardano.
Command
| Field | Value |
|---|---|
| CLA | 0xD7 |
| INS | 0x22 |
| P1 | 0x00 |
| P2 | 0x00 |
Data
| Field | Length | Comments |
|---|---|---|
| KES public key | 32 | |
| KES period | 8 | Big endian. |
| Issue counter | 8 | Big endian. |
| Pool cold key path | variable | BIP44 path. See GetExtColdKey call for a format example. |
There are restrictions on the path; see policyForSignOpCert in src/securityPolicy.c for the details.
Response
| Field | Length | Comments |
|---|---|---|
| Signature | 64 | Operational certificate signature. |