Hi,

I am using DTLS with PSK (on OTP-21.1), but I can not find the correct cipher suites from the supported cipher list:
==============================
3> rp(ssl:cipher_suites(all)).
[

{ecdhe_ecdsa,aes_256_gcm,aead,sha384}

,

{ecdhe_rsa,aes_256_gcm,aead,sha384}

,

{ecdhe_ecdsa,aes_256_cbc,sha384,sha384}

,

{ecdhe_rsa,aes_256_cbc,sha384,sha384}

,

{ecdh_ecdsa,aes_256_gcm,aead,sha384}

,

{ecdh_rsa,aes_256_gcm,aead,sha384}

,

{ecdh_ecdsa,aes_256_cbc,sha384,sha384}

,

{ecdh_rsa,aes_256_cbc,sha384,sha384}

,

{dhe_rsa,aes_256_gcm,aead,sha384}

,

{dhe_dss,aes_256_gcm,aead,sha384}

,

{dhe_rsa,aes_256_cbc,sha256}

,

{dhe_dss,aes_256_cbc,sha256}

,

{ecdhe_ecdsa,aes_128_gcm,aead,sha256}

,

{ecdhe_rsa,aes_128_gcm,aead,sha256}

,

{ecdhe_ecdsa,aes_128_cbc,sha256,sha256}

,

{ecdhe_rsa,aes_128_cbc,sha256,sha256}

,

{ecdh_ecdsa,aes_128_gcm,aead,sha256}

,

{ecdh_rsa,aes_128_gcm,aead,sha256}

,

{ecdh_ecdsa,aes_128_cbc,sha256,sha256}

,

{ecdh_rsa,aes_128_cbc,sha256,sha256}

,

{dhe_rsa,aes_128_gcm,aead,sha256}

,

{dhe_dss,aes_128_gcm,aead,sha256}

,

{dhe_rsa,aes_128_cbc,sha256}

,

{dhe_dss,aes_128_cbc,sha256}

,

{ecdhe_ecdsa,aes_256_cbc,sha}

,

{ecdhe_rsa,aes_256_cbc,sha}

,

{dhe_rsa,aes_256_cbc,sha}

,

{dhe_dss,aes_256_cbc,sha}

,

{ecdh_ecdsa,aes_256_cbc,sha}

,

{ecdh_rsa,aes_256_cbc,sha}

,

{ecdhe_ecdsa,aes_128_cbc,sha}

,

{ecdhe_rsa,aes_128_cbc,sha}

,

{dhe_rsa,aes_128_cbc,sha}

,

{dhe_dss,aes_128_cbc,sha}

,

{ecdh_ecdsa,aes_128_cbc,sha}

,

{ecdh_rsa,aes_128_cbc,sha}

,

{rsa_psk,aes_256_gcm,aead,sha384}

,

{rsa_psk,aes_256_cbc,sha384}

,

{rsa_psk,aes_128_gcm,aead,sha256}

,

{rsa_psk,aes_128_cbc,sha256}

,

{rsa_psk,aes_256_cbc,sha}

,

{rsa_psk,aes_128_cbc,sha}

,

{rsa_psk,'3des_ede_cbc',sha}

,

{rsa_psk,rc4_128,sha}

,

{srp_rsa,'3des_ede_cbc',sha}

,

{srp_dss,'3des_ede_cbc',sha}

,

{srp_rsa,aes_128_cbc,sha}

,

{srp_dss,aes_128_cbc,sha}

,

{srp_rsa,aes_256_cbc,sha}

,

{srp_dss,aes_256_cbc,sha}

,

{ecdhe_ecdsa,rc4_128,sha}

,

{ecdhe_rsa,rc4_128,sha}

,

{ecdh_ecdsa,rc4_128,sha}

,

{ecdh_rsa,rc4_128,sha}

,

{rsa,rc4_128,sha}

,

{rsa,rc4_128,md5}

,

{dhe_rsa,des_cbc,sha}

,

{rsa,des_cbc,sha}

,

{ecdhe_ecdsa,'3des_ede_cbc',sha}

,

{ecdhe_rsa,'3des_ede_cbc',sha}

,

{dhe_rsa,'3des_ede_cbc',sha}

,

{dhe_dss,'3des_ede_cbc',sha}

,

{ecdh_ecdsa,'3des_ede_cbc',sha}

,

{ecdh_rsa,'3des_ede_cbc',sha}

,

{rsa,aes_256_gcm,aead,sha384}

,

{rsa,aes_256_cbc,sha256}

,

{rsa,aes_128_gcm,aead,sha256}

,

{rsa,aes_128_cbc,sha256}

,

{rsa,aes_256_cbc,sha}

,

{rsa,aes_128_cbc,sha}

,

{rsa,'3des_ede_cbc',sha}

]
==============================

What I am looking for is `TLS_PSK_WITH_AES_128_CBC_SHA256` and `TLS_PSK_WITH_AES_128_CCM_8`. I think they might be supported by OTP-21.1, but I am not sure as they are not listed in the output of `ssl:cipher_suites(all)`.

I found a [wiki](https://github.com/erlang/otp/wiki/Cipher-suite-correspondence-table) about this, but it seems to be outdated.
Could you confirm this? Can I use following SSL config in my application?

==============================
{ciphers, [

{psk, aes_128_cbc, sha256}

,

{psk, aes_128_ccm, 8}

]}
==============================

Best Regards,
//Shawn