Symptom

From the fault guide we are not given any clear helpful steps other than contact TAC Severity: Major Code: F0854 Last Transition Time: 2022-01-16T12:08:09.799 ID: 27555 Status: None Description: FDM Keyring's RSA modulus is invalid. Affected Object: sys/pki-ext/keyring-FDM Name: Pki Key Ring Modulus Cause: Invalid Keyring Modulus Type: Security Acknowledged: No Occurrences: 1

Conditions

FTD KP (2100)

Workaround

firepower # scope security firepower /security # scope keyring FDM firepower /security/keyring # set modulus mod2048 firepower /security/keyring # set elliptic-curve secp384r1 firepower /security/keyring # commit-buffer and try the regenerate command after this from ftd console: > system support regenerate-security-keyring

Further Problem Description