Difference between revisions of "TLS specifications"
From FileZilla Wiki
Jump to navigationJump to search (tmKVNI Post brought me to think, went to mull over!!....) |
m (Reverted edits by 193.105.210.170 (talk) to last revision by CodeSquid) |
||
| Line 1: | Line 1: | ||
The ''Transport Layer Security'' (TLS) protocol gets used to cryptographically protect a socket connection. It is the successor of the ''Secure Sockets Layer'' (SSL) protocol. TLS gets used for the FTP over TLS/SSL (FTPS) protocol. | The ''Transport Layer Security'' (TLS) protocol gets used to cryptographically protect a socket connection. It is the successor of the ''Secure Sockets Layer'' (SSL) protocol. TLS gets used for the FTP over TLS/SSL (FTPS) protocol. | ||
| − | + | == Technical Specifications == | |
| + | |||
| + | * [http://filezilla-project.org/specs/draft_ssl_v3.txt SSLv3 draft] (obsolete) | ||
| + | * [http://filezilla-project.org/specs/rfc2246.txt <nowiki>RFC 2246</nowiki>] "TLS 1.0" | ||
| + | * [http://filezilla-project.org/specs/rfc4346.txt <nowiki>RFC 4346</nowiki>] "TLS 1.1" | ||
| + | |||
| + | === Points of interest === | ||
| + | |||
| + | * Section 7.2.1. of RFC 2246: Closure alerts<br /> | ||
| + | <blockquote><pre>The client and the server must share knowledge that the connection is | ||
| + | ending in order to avoid a truncation attack. Either party may | ||
| + | initiate the exchange of closing messages. | ||
| + | [...] | ||
| + | Each party is required to send a close_notify alert before closing | ||
| + | the write side of the connection. | ||
| + | </pre></blockquote> | ||
| + | |||
| + | :Lots of FTP servers did not follow the specifications and were vulnerable to truncation attacks. FileZilla will properly fail transfers on those servers. | ||
== See also == | == See also == | ||
Revision as of 20:08, 11 February 2012
The Transport Layer Security (TLS) protocol gets used to cryptographically protect a socket connection. It is the successor of the Secure Sockets Layer (SSL) protocol. TLS gets used for the FTP over TLS/SSL (FTPS) protocol.
Technical Specifications
- SSLv3 draft (obsolete)
- RFC 2246 "TLS 1.0"
- RFC 4346 "TLS 1.1"
Points of interest
- Section 7.2.1. of RFC 2246: Closure alerts
The client and the server must share knowledge that the connection is ending in order to avoid a truncation attack. Either party may initiate the exchange of closing messages. [...] Each party is required to send a close_notify alert before closing the write side of the connection.
- Lots of FTP servers did not follow the specifications and were vulnerable to truncation attacks. FileZilla will properly fail transfers on those servers.
