Better Tor should use secure TLS (esp TLS 1.2 and higher) with least TLS 1.1 and higher instead of insecure SSL. At the same time, Tor should remove RC4,RC2,DES,MD5,null, DH,ECDH from encrypted codes because they're insecure. Tor also should remove 3DES from encrypted codes because it have low streng. And HTTP 2.0 is safer and more secure and more private and faster than HTTP 1.1 and HTTP 1.0. And RSA and DSA and ECDSA are same strong but ECDSA have best performent in RSA/DSA/ECDSA. Use least ECDSA 128 bits encryption for client and least ECDSA 2048 bits for server even ECDSA 8192 bits possible. Use DHE/ECDHE for encryption.