You can take a look at Dan Berstein's Cureve2519. It's a non-NIST, non-NSA curve and he has his own adaptation of DSA that goes with it. However, I suppose it's possible to parallelize an attack on this, so it may not be resistant to quantum computing attacks.

As for symmetric encryption, it's important to note that AES was developed by the international community and is considered by most to NOT have NSA fingerprints on it. As you probably already know, it is the defacto symmetric encryption standard of today.

You can take a look at Dan Berstein's Curve25519. It's a non-NIST, non-NSA curve and he has his own adaptation of DSA that goes with it. However, I suppose it's possible to parallelize an attack on this, so it may not be resistant to quantum computing attacks.

As for symmetric encryption, it's important to note that AES was developed by the international community and is considered by most to NOT have NSA fingerprints on it. As you probably already know, it is the defacto symmetric encryption standard of today.