Code,Reason,Reference
0,No reason specified (Key Revocation or Certification Revocation signatures),[RFC9580]
1,Key is superseded (Key Revocation signatures),[RFC9580]
2,Key material has been compromised (Key Revocation signatures),[RFC9580]
3,Key is retired and no longer used (Key Revocation signatures),[RFC9580]
4-31,Unassigned,
32,User ID information is no longer valid (Certification Revocation signatures),[RFC9580]
33-99,Unassigned,
100-110,Private Use,[RFC9580]