Securely loading code in a security processor may include autonomous fetching an encrypted security data set, which may comprise security code and/or root keys, by a security processor integrated within a chip. The encrypted security data set may be decrypted via the on-chip security processor and the decrypted code set may be validated on-chip using an on-chip locked value. The on-chip locked value may be stored in a one-time programmable read-only memory (OTP ROM) and may include security information generated by applying one or more security algorithms, for example SHA-based algorithms, to the security data set. The encryption of the security data set may utilize various security algorithms, for example AES-based algorithms. The on-chip locked value may be created and locked after a virgin boot of a device that includes the security processor. The security data set may be authenticated during the virgin boot of the device.