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author | Christopher Speller <crspeller@gmail.com> | 2017-02-02 09:32:00 -0500 |
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committer | Harrison Healey <harrisonmhealey@gmail.com> | 2017-02-02 09:32:00 -0500 |
commit | 701d1ab638b23c24877fc41824add66232446676 (patch) | |
tree | ec120c88d38ac9d38d9eabdd3270b52bb6ac9d96 /vendor/golang.org/x/crypto/ssh/common.go | |
parent | ca3211bc04f6dea34e8168217182637d1419f998 (diff) | |
download | chat-701d1ab638b23c24877fc41824add66232446676.tar.gz chat-701d1ab638b23c24877fc41824add66232446676.tar.bz2 chat-701d1ab638b23c24877fc41824add66232446676.zip |
Updating server dependancies (#5249)
Diffstat (limited to 'vendor/golang.org/x/crypto/ssh/common.go')
-rw-r--r-- | vendor/golang.org/x/crypto/ssh/common.go | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/vendor/golang.org/x/crypto/ssh/common.go b/vendor/golang.org/x/crypto/ssh/common.go index 2c72ab544..faabb7ef9 100644 --- a/vendor/golang.org/x/crypto/ssh/common.go +++ b/vendor/golang.org/x/crypto/ssh/common.go @@ -104,6 +104,21 @@ type directionAlgorithms struct { Compression string } +// rekeyBytes returns a rekeying intervals in bytes. +func (a *directionAlgorithms) rekeyBytes() int64 { + // According to RFC4344 block ciphers should rekey after + // 2^(BLOCKSIZE/4) blocks. For all AES flavors BLOCKSIZE is + // 128. + switch a.Cipher { + case "aes128-ctr", "aes192-ctr", "aes256-ctr", gcmCipherID, aes128cbcID: + return 16 * (1 << 32) + + } + + // For others, stick with RFC4253 recommendation to rekey after 1 Gb of data. + return 1 << 30 +} + type algorithms struct { kex string hostKey string |