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singleion
V2EX  ›  Java

为什么在 TSS. Java 项目中使用 tpm.EvictControl()方法运行出错,并显示以下消息:{NO_SESSIONS},有没有了解的进来提点提点

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  •   singleion · 122 天前 · 815 次点击
    这是一个创建于 122 天前的主题,其中的信息可能已经有所发展或是发生改变。

    用的是微软的 TSS.java 开发工具包,做个 TPM 可信模块开发,遇到的问题,源码如下:

    public static void main(String[] args) throws IOException {
            Tpm tpm = TpmFactory.platformTpm();
            byte[] nullVec = new byte[0];
            byte[] aesKey = Helpers.RandomBytes(16);
            TPMT_PUBLIC aesTemplate = new TPMT_PUBLIC(TPM_ALG_ID.SHA256, new TPMA_OBJECT(new TPMA_OBJECT[]{TPMA_OBJECT.decrypt, TPMA_OBJECT.sign, TPMA_OBJECT.fixedParent, TPMA_OBJECT.fixedTPM, TPMA_OBJECT.userWithAuth}), new byte[0], new TPMS_SYMCIPHER_PARMS(new TPMT_SYM_DEF_OBJECT(TPM_ALG_ID.AES, 128, TPM_ALG_ID.CFB)), new TPM2B_DIGEST_SYMCIPHER());
            TPMS_SENSITIVE_CREATE sensCreate = new TPMS_SENSITIVE_CREATE(nullVec, aesKey);
            CreatePrimaryResponse aesPrimary = tpm.CreatePrimary(tpm._OwnerHandle, sensCreate, aesTemplate, nullVec, new TPMS_PCR_SELECTION[0]);
            TPM_HANDLE aesHandle = aesPrimary.handle;
            byte[] toEncrypt = new byte[]{1, 2, 3, 4, 5, 4, 3, 2, 12, 3, 4, 5};
            byte[] iv = new byte[16];
            EncryptDecryptResponse encrypted = tpm.EncryptDecrypt(aesHandle, (byte) 0, TPM_ALG_ID.CFB, iv, toEncrypt);
            EncryptDecryptResponse decrypted = tpm.EncryptDecrypt(aesHandle, (byte) 1, TPM_ALG_ID.CFB, iv, encrypted.outData);
            System.out.println("AES128 encryption with key = " + Helpers.toHex(aesKey));
            System.out.println("    Input     data:" + Helpers.toHex(toEncrypt));
            System.out.println("    encrypted data:" + Helpers.toHex(encrypted.outData));
            System.out.println("    decrypted data:" + Helpers.toHex(decrypted.outData));
    
    
            // persistent handle
            TPM_HANDLE persistentHandle = TPM_HANDLE.persistent(0x81010001);
            tpm.EvictControl(TPM_HANDLE.from(TPM_RH.OWNER), aesHandle, persistentHandle);
            if (!Helpers.arraysAreEqual(toEncrypt, decrypted.outData)) {
                throw new RuntimeException("encrypt/decrypt failed!");
            } else {
                tpm.FlushContext(aesHandle);
            }
            // clean object
            if (!Helpers.arraysAreEqual(toEncrypt, decrypted.outData)) {
                throw new RuntimeException("encrypt/decrypt failed!");
            } else {
                tpm.FlushContext(aesHandle);
            }
        }
    

    错误信息如下:

    Exception in thread "main" tss.TpmException: Unexpected response tag {NO_SESSIONS}  
    at tss.TpmBase.DispatchCommand(TpmBase.java:391)    
    at tss.Tpm.EvictControl(Tpm.java:1930)  
    at com.xxx.assist.XXXX.main(XXXX.java:12)
    
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