Required files
net/ssh/transport/key_expander
net/ssh/transport/hmac/md5
net/ssh/transport/hmac/md5_96
net/ssh/transport/hmac/sha1
net/ssh/transport/hmac/sha1_96
net/ssh/transport/hmac/sha2_256
net/ssh/transport/hmac/sha2_256_96
net/ssh/transport/hmac/sha2_512
net/ssh/transport/hmac/sha2_512_96
net/ssh/transport/hmac/none