monero-site/_i18n/it/resources/moneropedia/ntcp.md

---
tags: ["kovri"]
terms: ["NTCP"]
summary: "NIO-Based TCP (Non-blocking I/O based TCP): one of two Kovri transports"
---

{% include untranslated.html %}
### The Basics

*NIO-Based TCP (Non-blocking I/O based TCP)* is one of two encrypted @transports for @Kovri.

Similar to @SSU, @NTCP's *primary* purpose is to securely transmit @in-net @I2NP messages through @tunnels but, unlike @SSU, @NTCP functions solely over encrypted [TCP](https://en.wikipedia.org/wiki/Transmission_Control_Protocol).

### In-depth information

 - Passes along individual @I2NP messages (both Standard and Time Sync) after:
   - TCP has been established
   - Establishment Sequence has been completed
 - Uses the following @encryption:
   - 2048-bit [Diffie-Hellman](https://en.wikipedia.org/wiki/Diffie-hellman)
   - [AES-256](https://en.wikipedia.org/wiki/Advanced_Encryption_Standard)/[CBC](https://en.wikipedia.org/wiki/Block_cipher_modes_of_operation)
 - Establishment Sequence has the following *states*:
   - Pre-establishment
   - Establishment
   - Post-establishment or "Established"
 - Uses the following from the @network-database:
   - Transport name: NTCP
   - Host: IP (IPv4 or IPv6) or host name (shortened IPv6 address (with "::") is allowed)
   - Port: 1024 - 65535

### Notes

For further details, read @Java-I2P's [NTCP](https://geti2p.net/en/docs/transport/ntcp)
upload unstrandlated files 2018-02-04 15:56:31 +00:00			`---`
			`tags: ["kovri"]`
			`terms: ["NTCP"]`
			`summary: "NIO-Based TCP (Non-blocking I/O based TCP): one of two Kovri transports"`
			`---`

Moneropedia relocalized + correction on Italian Account + Removed leftover miners.md (replaced by mining.md) + Removed Dust and update Copyright + Code improvement to avoid reading the config file and to use the builtin jekyll config variable passed in the content + Ammount.md:25/26 glitch "\@transaction-privacy" corrected. PL to be checked twice. + Italian ammount.md moneropedia links corrected (terms added to destination entries, unnecessary markdown links removed) + Polish corrections + extend ruby \word-boundary in regex to match `-based` `-like` `-form` + Updated readme according to the new way to add or translate a moneropedia entry + fix mining with CryptoNight variant + rebased to include AR + chery picked #820 to avoid conflicts 2018-07-05 15:04:14 +00:00			`{% include untranslated.html %}`
upload unstrandlated files 2018-02-04 15:56:31 +00:00			`### The Basics`

			`NIO-Based TCP (Non-blocking I/O based TCP) is one of two encrypted @transports for @Kovri.`

			`Similar to @SSU, @NTCP's primary purpose is to securely transmit @in-net @I2NP messages through @tunnels but, unlike @SSU, @NTCP functions solely over encrypted [TCP](https://en.wikipedia.org/wiki/Transmission_Control_Protocol).`

			`### In-depth information`

			`- Passes along individual @I2NP messages (both Standard and Time Sync) after:`
			`- TCP has been established`
			`- Establishment Sequence has been completed`
			`- Uses the following @encryption:`
			`- 2048-bit [Diffie-Hellman](https://en.wikipedia.org/wiki/Diffie-hellman)`
			`- [AES-256](https://en.wikipedia.org/wiki/Advanced_Encryption_Standard)/[CBC](https://en.wikipedia.org/wiki/Block_cipher_modes_of_operation)`
			`- Establishment Sequence has the following states:`
			`- Pre-establishment`
			`- Establishment`
			`- Post-establishment or "Established"`
			`- Uses the following from the @network-database:`
			`- Transport name: NTCP`
			`- Host: IP (IPv4 or IPv6) or host name (shortened IPv6 address (with "::") is allowed)`
			`- Port: 1024 - 65535`

			`### Notes`

			`For further details, read @Java-I2P's [NTCP](https://geti2p.net/en/docs/transport/ntcp)`