OPTEE把OPTEE里TEE_ATTR_RSA_PUBLIC_EXPONENT值设置为3生成RSA密钥我需要代码

以下是使用OPTEE生成RSA密钥的示例代码：

#include <tee_internal_api.h>
#include <tee_internal_api_extensions.h>
#include <utee_defines.h>

#define RSA_KEY_SIZE 1024
#define RSA_PUBLIC_EXPONENT 3

TEE_Result generate_rsa_key(TEE_ObjectHandle *key_handle) {
    TEE_Result res;
    TEE_ObjectHandle key_pair = TEE_HANDLE_NULL;
    TEE_Attribute attrs[2];
    uint32_t count = 2;

    // Allocate object for RSA key pair
    res = TEE_AllocateTransientObject(TEE_TYPE_RSA_KEYPAIR, RSA_KEY_SIZE, &key_pair);
    if (res != TEE_SUCCESS) {
        TEE_Printf("Failed to allocate RSA key pair object\n");
        goto exit;
    }

    // Set RSA public exponent attribute
    TEE_InitValueAttribute(&attrs[0], TEE_ATTR_RSA_PUBLIC_EXPONENT,
                           &RSA_PUBLIC_EXPONENT, sizeof(RSA_PUBLIC_EXPONENT));
    // Generate RSA key pair
    res = TEE_GenerateKeyPair(key_pair, RSA_KEY_SIZE, &attrs[0], count);
    if (res != TEE_SUCCESS) {
        TEE_Printf("Failed to generate RSA key pair\n");
        goto exit;
    }

    // Export RSA public key
    res = TEE_GetObjectBufferAttribute(key_pair, TEE_ATTR_RSA_PUBLIC_EXPONENT, NULL, 0, &count);
    if (res != TEE_SUCCESS) {
        TEE_Printf("Failed to get RSA public key buffer size\n");
        goto exit;
    }

    uint8_t *public_key = TEE_Malloc(count, 0);
    if (public_key == NULL) {
        TEE_Printf("Failed to allocate buffer for RSA public key\n");
        res = TEE_ERROR_OUT_OF_MEMORY;
        goto exit;
    }

    res = TEE_GetObjectBufferAttribute(key_pair, TEE_ATTR_RSA_PUBLIC_EXPONENT, public_key, count, &count);
    if (res != TEE_SUCCESS) {
        TEE_Printf("Failed to get RSA public key\n");
        goto exit;
    }

    // Import RSA public key as TEE object
    res = TEE_AllocateTransientObject(TEE_TYPE_RSA_PUBLIC_KEY, RSA_KEY_SIZE, key_handle);
    if (res != TEE_SUCCESS) {
        TEE_Printf("Failed to allocate RSA public key object\n");
        goto exit;
    }

    res = TEE_SetObjectBufferAttribute(*key_handle, TEE_ATTR_RSA_PUBLIC_EXPONENT, public_key, count);
    if (res != TEE_SUCCESS) {
        TEE_Printf("Failed to set RSA public key attribute\n");
        goto exit;
    }

    // Success
    res = TEE_SUCCESS;

exit:
    // Clean up resources
    TEE_Free(public_key);
    TEE_CloseObject(key_pair);
    return res;
}

注意：该示例代码只生成RSA公钥，并将其导出为TEE对象。如果需要生成完整的RSA密钥对，可以使用TEE_TYPE_RSA_KEYPAIR类型的对象，并使用TEE_GetObjectBufferAttribute函数获取私钥的DER编码。