目录
一、TEE的API介绍
参考《GPD_TEE_Internal_Core_API_Specification_v1.1.pdf》
1、Cryptographic Operations API 加解密函数介绍()
（1）、Generic Operation Functions
TEE_AllocateOperation
algorithm
mode
TEE_FreeOperation
TEE_SetOperationKey
TEE_SetOperationKey2
（2）、Message Digest Functions 消息摘要
TEE_DigestUpdate
TEE_DigestDoFinal
（3）、Symmetric Cipher Functions 对称加解密
TEE_CipherInit
TEE_CipherUpdate
TEE_CipherDoFinal
（4）、Asymmetric Functions 非对称加解密
TEE_AsymmetricEncrypt, TEE_AsymmetricDecrypt
TEE_AsymmetricSignDigest 和 TEE_AsymmetricVerifyDigest
（4）、Random Data Generation Function 随机数
TEE_GenerateRandom
2 、Functions by Category 函数分类总结
二、代码示例
（参考）optee_ctest ：https://github.com/OP-TEE/optee_client
1、cipher 对称加解密
case编号 : xtest_tee_test_4003
ADBG_CASE_DEFINE(regression, 4003, xtest_tee_test_4003,
"Test TEE Internal API cipher operations");
调用次序：
ta_crypt_cmd_allocate_operation
ta_crypt_cmd_allocate_transient_object
ta_crypt_cmd_set_operation_key
ta_crypt_cmd_cipher_init
ta_crypt_cmd_cipher_update
ta_crypt_cmd_cipher_do_final
ta_crypt_cmd_free_operation
2、Asymmetric 非对称加解密
case编号 : xtest_tee_test_4006
ADBG_CASE_DEFINE(regression, 4006, xtest_tee_test_4006,
"Test TEE Internal API Asymmetric Cipher operations");