---
title: "Which Encryption Algorithms (Ciphers) Does Lasernet SFTP Support?"
slug: "which-encryption-algorithms-ciphers-does-lasernet-sftp-support"
updated: 2025-07-01T08:15:49Z
published: 2025-07-01T08:15:49Z
canonical: "kb.lasernetgroup.com/which-encryption-algorithms-ciphers-does-lasernet-sftp-support"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.lasernetgroup.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Which Encryption Algorithms (Ciphers) Does Lasernet SFTP Support?

**Applies to:** Lasernet Core 10

The Lasernet FTP input and output modules support SFTP. When establishing a connection, Lasernet and the SFTP server negotiate which encryption algorithm (cipher) to use.

## Supported Ciphers

1. aes128-ctr
2. aes256-ctr
3. aes192-ctr
4. aes128-cbc
5. aes256-cbc
6. aes192-cbc
7. aes128-gcm@openssh.com
8. aes256-gcm@openssh.com
9. twofish256-cbc
10. twofish128-cbc
11. blowfish-cbc (encryption strength is 128 bits)

## The Cipher Negotiation Process

When Lasernet and the SFTP server are establishing an SFTP connection, they follow this process to select a cipher:

1. The SFTP server specifies which ciphers it supports.
2. Lasernet will sequentially propose its supported ciphers in the order specified above. The connection will use the first cipher that Lasernet and the SFTP server both support.