TRUSTED TSA

HSM and TSU Assurance

TSA signing-key protection, segregation of duties and issuing-unit controls.

Protects TSA signing keys with dual control, tamper resistance and audit.

Issuing unit combining trusted time and policy.

Generation, backup, rollover and compromise response.

FIPS 140-2/140-3 Level 3 or EN 419221-5 is claimed only with evidence.