> For bad example 2, please check if the panic info is: `thread '<unnamed>'
> panicked at 'TLS access error: AccessError { msg: "If TLS data needs to be
> destructed, TCS policy must be Bound." }'`. If so, the problem is:
>
> 1. the enclave is signed with TCSPOLICY=UNBOUND, which means there's no
> reliable thread local storage slots.
>
> 2. the enclave is using thread local storage, which often relates to
> `thread_rng`
>
>
> Two ways to fix:
>
> * Edit TCSPolicy in `Enclave.config.xml`. make TCSPolicy = 0
>
> * or use `SgxRng` in `sgx_rand`, or `OsRng` in ported `rand`
>
>
> ```toml
> rand = { git = "https://github.com/mesalock-linux/rand-sgx";, tag =
> "v0.6.5_sgx1.1.1" }
> ```
>
> ```rust
> use std::string::ToString;
> let threshold = 128;
> let secret = "abcdefg".to_string();
> let mut rand_container = vec![0u8; (threshold - 1) as usize];
> let mut coefficients= vec![];
>
> for c in secret.as_bytes() {
>
> // fixme: randomise the bytes
>
> let mut rng = SgxRng::new().unwrap();
> rng.fill_bytes(&mut rand_container);
> let mut coef: Vec<u8> = vec![*c];
> for r in rand_container.iter() {
> coef.push(*r);
> }
> coefficients.push(coef);
> }
>
> {
> use rand::rngs::OsRng;
> use rand::RngCore;
> OsRng.fill_bytes(&mut rand_container);
> }
> ```
Thanks for the help! :)
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