- Add cipher_key_len() helper function - Store encryption_ctos/stoc in KexExchangeHandler - Use algorithm name to determine key_len (aes256 → 32, aes128 → 16) - Remove hardcoded cipher_key_len=32 TODO All 229 tests pass.
- Add cipher_key_len() helper function - Store encryption_ctos/stoc in KexExchangeHandler - Use algorithm name to determine key_len (aes256 → 32, aes128 → 16) - Remove hardcoded cipher_key_len=32 TODO All 229 tests pass.