Blowfish-CTR mode incorrect

• 报告人: (匿名)
• 属主: doda
• 类型: Bugs
• 状态: 关闭
• 组件: TTSSH
• 里程碑: Tera Term 4.91 (关闭)
• 优先: 5 - Medium
• 严重性: 5 - Medium
• 处理结果: Fixed
• 文件: 无

Details 回复

blowfish-ctr in TeraTerm defaults to using a 128-bit key rather than a 256-bit key. See https://tools.ietf.org/html/rfc4344 page 4 which states:

The "blowfish-ctr" method uses Blowfish with 256-bit keys SCHNEIER. The block size is 8 bytes. (Note that "blowfish-cbc" from RFC4253 uses 128-bit keys.)

If I manually change my SSH server to use 128-bit keys with blowfish-ctr, a connection is correctly made. PuTTY 0.67 does not have this problem and correctly uses 256-bit keys.

任务单历史 (3/5 Histories)

2016-05-06 04:46 Updated by: None

• New Ticket "Blowfish-CTR mode incorrect" created

2016-05-06 18:43 Updated by: doda

• 属主 Update from (无) to doda
• 里程碑 Update from (无) to Tera Term 4.91 (关闭)
• 组件 Update from Tera Term to TTSSH
• 处理结果 Update from 无 to Accepted

2016-05-07 03:11 Updated by: doda

• 处理结果 Update from Accepted to Fixed

2016-05-09 10:22 Updated by: doda

评论 回复

fixed. Thanks!

https://ttssh2.osdn.jp/snapshot/snapshot-20160509.zip

2016-05-31 23:00 Updated by: (del#1144)

• Ticket Close date is changed to 2016-05-31 23:00
• 状态 Update from 开启 to 关闭