tpm_initialize.py 文件源码

def get_mod_from_tpm(keyhandle):
    (retout,code)  = tpm_exec.run("getpubkey -ha %s -pwdk %s"%(keyhandle,get_tpm_metadata('aik_pw')),raiseOnError=False)
    if code!=tpm_exec.EXIT_SUCESS and len(retout)>0 and retout[0].startswith("Error Authentication failed (Incorrect Password) from TPM_GetPubKey"):
        return None

    # now to parse things!
    inMod = False
    public_modulus = []
    for line in retout:
        if line.startswith("Modulus"):
            inMod = True
            continue
        if inMod:
            tokens = line.split()
            for token in tokens:
                public_modulus.append(string.atol(token,base=16))
    return base64.b64encode(bytearray(public_modulus))