
Secure Shell (SSH) Protocol Parameters 

(last updated 2009-07-20)

Registries below include:
- Message Numbers
- Disconnection Messages Reason Codes and Descriptions
- Channel Connection Failure Reason Codes and Descriptions
- Extended Channel Data Transfer data_type_code and Data Values
- Pseudo-Terminal Encoded Terminal Modes
- Service Names
- Authentication Method Names
- Connection Protocol Channel Types
- Connection Protocol Global Request Names
- Connection Protocol Channel Request Names
- Signal Names
- Connection Protocol Subsystem Names
- Key Exchange Method Names
- Assigned Algorithm Names
  - Encryption Algorithm Names 
  - MAC Algorithm Names 
  - Public Key Algorithm Names 
  - Compression Algorithm Names 
- SSH Public-Key File Header Tags
- Public Key Subsystem
  - Request Names 
  - Response Names 
  - Attribute Names 
  - Status Codes 


Registry Name: Message Numbers
Reference: [RFC4250]
Registration Procedures: Standards Action

Registry:
Value     Message ID                                        Reference
-------   ------------------------------------------------  --------------
1         SSH_MSG_DISCONNECT                                [SSH-TRANS]
2         SSH_MSG_IGNORE                                    [SSH-TRANS]
3         SSH_MSG_UNIMPLEMENTED                             [SSH-TRANS]
4         SSH_MSG_DEBUG                                     [SSH-TRANS]
5         SSH_MSG_SERVICE_REQUEST                           [SSH-TRANS]
6         SSH_MSG_SERVICE_ACCEPT                            [SSH-TRANS]
7-19      Unassigned (Transport layer generic)
20        SSH_MSG_KEXINIT                                   [SSH-TRANS]
21        SSH_MSG_NEWKEYS                                   [SSH-TRANS]
22-29     Unassigned (Algorithm negotiation)
30-49     Reserved (key exchange method specific)           [RFC4251]
50        SSH_MSG_USERAUTH_REQUEST                          [SSH-USERAUTH]
51        SSH_MSG_USERAUTH_FAILURE                          [SSH-USERAUTH]
52        SSH_MSG_USERAUTH_SUCCESS                          [SSH-USERAUTH]
53        SSH_MSG_USERAUTH_BANNER                           [SSH-USERAUTH]
54-59     Unassigned (User authentication generic)
60        SSH_MSG_USERAUTH_INFO_REQUEST                     [RFC4256]
61        SSH_MSG_USERAUTH_INFO_RESPONSE                    [RFC4256]
62-79     Reserved (User authentication method specific)    [RFC4251]
80        SSH_MSG_GLOBAL_REQUEST                            [SSH-CONNECT]
81        SSH_MSG_REQUEST_SUCCESS                           [SSH-CONNECT]
82        SSH_MSG_REQUEST_FAILURE                           [SSH-CONNECT]
83-89     Unassigned (Connection protocol generic)
90        SSH_MSG_CHANNEL_OPEN                              [SSH-CONNECT]
91        SSH_MSG_CHANNEL_OPEN_CONFIRMATION                 [SSH-CONNECT]
92        SSH_MSG_CHANNEL_OPEN_FAILURE                      [SSH-CONNECT]
93        SSH_MSG_CHANNEL_WINDOW_ADJUST                     [SSH-CONNECT]
94        SSH_MSG_CHANNEL_DATA                              [SSH-CONNECT]
95        SSH_MSG_CHANNEL_EXTENDED_DATA                     [SSH-CONNECT]
96        SSH_MSG_CHANNEL_EOF                               [SSH-CONNECT]
97        SSH_MSG_CHANNEL_CLOSE                             [SSH-CONNECT]
98        SSH_MSG_CHANNEL_REQUEST                           [SSH-CONNECT]
99        SSH_MSG_CHANNEL_SUCCESS                           [SSH-CONNECT]
100       SSH_MSG_CHANNEL_FAILURE                           [SSH-CONNECT]
101-127   Unassigned (Channel related messages)
128-191   Reserved (for client protocols)
192-255   Reserved for Private Use (local extensions)      


Registry: Disconnection Messages Reason Codes and Descriptions 
Reference: [RFC4250] 
Range                   Registration Procedures
----------------------  -----------------------
0x00000001-0xFDFFFFFF   IETF Consensus   
0xFE000000-0xFFFFFFFF   Reserved for Private Use

Note: SSH_MSG_DISCONNECT 'description' and 'reason code' values 

Registry:
reason code            Symbolic Name                                  Reference
---------------------  ---------------------------------------------  -----------
1                      SSH_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT     [SSH-TRANS]      
2                      SSH_DISCONNECT_PROTOCOL_ERROR                  [SSH-TRANS]     
3                      SSH_DISCONNECT_KEY_EXCHANGE_FAILED             [SSH-TRANS]     
4                      SSH_DISCONNECT_RESERVED                        [SSH-TRANS] 
5                      SSH_DISCONNECT_MAC_ERROR                       [SSH-TRANS] 
6                      SSH_DISCONNECT_COMPRESSION_ERROR               [SSH-TRANS]     
7                      SSH_DISCONNECT_SERVICE_NOT_AVAILABLE           [SSH-TRANS]     
8                      SSH_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED  [SSH-TRANS]     
9                      SSH_DISCONNECT_HOST_KEY_NOT_VERIFIABLE         [SSH-TRANS]     
10                     SSH_DISCONNECT_CONNECTION_LOST                 [SSH-TRANS]     
11                     SSH_DISCONNECT_BY_APPLICATION                  [SSH-TRANS]     
12                     SSH_DISCONNECT_TOO_MANY_CONNECTIONS            [SSH-TRANS]     
13                     SSH_DISCONNECT_AUTH_CANCELLED_BY_USER          [SSH-TRANS]     
14                     SSH_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE  [SSH-TRANS]     
15                     SSH_DISCONNECT_ILLEGAL_USER_NAME               [SSH-TRANS]     
0x00000016-0xFDFFFFFF  Unassigned
0xFE000000-0xFFFFFFFF  Reserved for Private Use


Registry Name: Channel Connection Failure Reason Codes and Descriptions 
Reference: [RFC4250] 
Range                   Registration Procedures
----------------------  -----------------------
0x00000001-0xFDFFFFFF   IETF Consensus   
0xFE000000-0xFFFFFFFF   Reserved for Private Use

Note: 'reason code' values and 'description' values

Registry:
reason code            Symbolic Name                          Reference
---------------------  -------------------------------------  -------------
1                      SSH_OPEN_ADMINISTRATIVELY_PROHIBITED   [SSH-CONNECT]   
2                      SSH_OPEN_CONNECT_FAILED                [SSH-CONNECT]    
3                      SSH_OPEN_UNKNOWN_CHANNEL_TYPE          [SSH-CONNECT]    
4                      SSH_OPEN_RESOURCE_SHORTAGE             [SSH-CONNECT]    
0x00000005-0xFDFFFFFF  Unassigned
0xFE000000-0xFFFFFFFF  Reserved for Private Use


Registry Name: Extended Channel Data Transfer data_type_code and Data 
Reference: [RFC4250]
Range                   Registration Procedures
----------------------  -----------------------
0x00000001-0xFDFFFFFF   IETF Consensus   
0xFE000000-0xFFFFFFFF   Reserved for Private Use

Note: 'data_type_code' values and 'data' values

Registry:
data_type_code         Symbolic Name                    Reference
---------------------  -------------------------------- -------------
1                      SSH_EXTENDED_DATA_STDERR         [SSH-CONNECT]       
0x00000002-0xFFFFFFFF  Unassigned 
0xFE000000-0xFFFFFFFF   Reserved for Private Use


Registry Name: Pseudo-Terminal Encoded Terminal Modes
Reference: [RFC4250] 
Registration Procedures: IETF Consensus

Note: opcode and argument values which make up the "encoded terminal modes" values

Registry:
opcode    argument       Description                               Reference      Note
--------  -------------  ----------------------------------------  -------------  ---------
0         TTY_OP_END     Indicates end of options.                 [RFC4250] 
1         VINTR          Interrupt character; 255 if none.         [SSH-CONNECT]  Section 8
                         Similarly for the other characters. 
                         Not all of these characters are  
                         supported on all systems.
2         VQUIT          The quit character (sends SIGQUIT         [SSH-CONNECT]  Section 8
                         signal on POSIX systems).
3         VERASE         Erase the character to left of the        [SSH-CONNECT]  Section 8
                         cursor.
4         VKILL          Kill the current input line.              [SSH-CONNECT]  Section 8
5         VEOF           End-of-file character (sends EOF from     [SSH-CONNECT]  Section 8
                         the terminal).
6         VEOL           End-of-line character in addition to      [SSH-CONNECT]  Section 8
                         carriage return and/or linefeed.
7         VEOL2          Additional end-of-line character.         [SSH-CONNECT]  Section 8
8         VSTART         Continues paused output (normally         [SSH-CONNECT]  Section 8
                         control-Q).
9         VSTOP          Pauses output (normally control-S).       [SSH-CONNECT]  Section 8
10        VSUSP          Suspends the current program.             [SSH-CONNECT]  Section 8
11        VDSUSP         Another suspend character.                [SSH-CONNECT]  Section 8
12        VREPRINT       Reprints the current input line.          [SSH-CONNECT]  Section 8
13        VWERASE        Erases a word left of cursor.             [SSH-CONNECT]  Section 8
14        VLNEXT         Enter the next character typed literally, [SSH-CONNECT]  Section 8
                         even if it is a special character
15        VFLUSH         Character to flush output.                [SSH-CONNECT]  Section 8
16        VSWTCH         Switch to a different shell layer.        [SSH-CONNECT]  Section 8
17        VSTATUS        Prints system status line (load, command, [SSH-CONNECT]  Section 8
                         pid, etc).
18        VDISCARD       Toggles the flushing of terminal output.  [SSH-CONNECT]  Section 8
19-29     Unassigned
30        IGNPAR         The ignore parity flag.  The parameter    [SSH-CONNECT]  Section 8
                         SHOULD be 0 if this flag is FALSE,
                         and 1 if it is TRUE.
31        PARMRK         Mark parity and framing errors.           [SSH-CONNECT]  Section 8
32        INPCK          Enable checking of parity errors.         [SSH-CONNECT]  Section 8
33        ISTRIP         Strip 8th bit off characters.             [SSH-CONNECT]  Section 8
34        INLCR          Map NL into CR on input.                  [SSH-CONNECT]  Section 8
35        IGNCR          Ignore CR on input.                       [SSH-CONNECT]  Section 8
36        ICRNL          Map CR to NL on input.                    [SSH-CONNECT]  Section 8
37        IUCLC          Translate uppercase characters to         [SSH-CONNECT]  Section 8
                         lowercase.
38        IXON           Enable output flow control.               [SSH-CONNECT]  Section 8
39        IXANY          Any char will restart after stop.         [SSH-CONNECT]  Section 8
40        IXOFF          Enable input flow control.                [SSH-CONNECT]  Section 8
41        IMAXBEL        Ring bell on input queue full.            [SSH-CONNECT]  Section 8
42-49     Unassigned
50        ISIG           Enable signals INTR, QUIT, [D]SUSP.       [SSH-CONNECT]  Section 8
51        ICANON         Canonicalize input lines.                 [SSH-CONNECT]  Section 8
52        XCASE          Enable input and output of uppercase      [SSH-CONNECT]  Section 8
                         characters by preceding their lowercase
                         equivalents with "\".
53        ECHO           Enable echoing.                           [SSH-CONNECT]  Section 8
54        ECHOE          Visually erase chars.                     [SSH-CONNECT]  Section 8
55        ECHOK          Kill character discards current line.     [SSH-CONNECT]  Section 8
56        ECHONL         Echo NL even if ECHO is off.              [SSH-CONNECT]  Section 8
57        NOFLSH         Don't flush after interrupt.              [SSH-CONNECT]  Section 8
58        TOSTOP         Stop background jobs from output.         [SSH-CONNECT]  Section 8
59        IEXTEN         Enable extensions.                        [SSH-CONNECT]  Section 8
60        ECHOCTL        Echo control characters as ^(Char).       [SSH-CONNECT]  Section 8
61        ECHOKE         Visual erase for line kill.               [SSH-CONNECT]  Section 8
62        PENDIN         Retype pending input.                     [SSH-CONNECT]  Section 8
63-69     Unassigned
70        OPOST          Enable output processing.                 [SSH-CONNECT]  Section 8
71        OLCUC          Convert lowercase to uppercase.           [SSH-CONNECT]  Section 8
72        ONLCR          Map NL to CR-NL.                          [SSH-CONNECT]  Section 8
73        OCRNL          Translate carriage return to newline      [SSH-CONNECT]  Section 8
                         (output).
74        ONOCR          Translate newline to carriage             [SSH-CONNECT]  Section 8
                         return-newline (output).
75        ONLRET         Newline performs a carriage return        [SSH-CONNECT]  Section 8
                         (output).
76-89     Unassigned
90        CS7            7 bit mode.                               [SSH-CONNECT]  Section 8
91        CS8            8 bit mode.                               [SSH-CONNECT]  Section 8
92        PARENB         Parity enable.                            [SSH-CONNECT]  Section 8
93        PARODD         Odd parity, else even.                    [SSH-CONNECT]  Section 8
94-127    Unassigned
128       TTY_OP_ISPEED  Specifies the input baud rate in          [SSH-CONNECT]  Section 8
                         bits per second.
129       TTY_OP_OSPEED  Specifies the output baud rate in         [SSH-CONNECT]  Section 8
                         bits per second.
130-255   Unassigned


Registry Name: Service Names
Reference: [RFC4250] 
Registration Procedures: IETF Consensus

Registry:
Service Name                   Reference
-----------------------------  --------------
ssh-userauth                   [SSH-USERAUTH]
ssh-connection                 [SSH-CONNECT]
netconf                        [RFC4742]


Registry Name: Authentication Method Names 
Reference: [RFC4250] 
Registration Procedures: IETF Consensus

Registry:
Method Name                    Reference       Note
-----------------------------  --------------  -------------
publickey                      [SSH-USERAUTH]  Section 7
password                       [SSH-USERAUTH]  Section 8
hostbased                      [SSH-USERAUTH]  Section 9
none                           [SSH-USERAUTH]  Section 5.2
gssapi-with-mic                [RFC4462]
gssapi-keyex                   [RFC4462]
gssapi                         [RFC4462]
external-keyx                  [RFC4462]


Registry Name: Connection Protocol Channel Types
Reference: [RFC4250] 
Registration Procedures: IETF Consensus

Registry:
Channel type                   Reference      Note
-----------------------------  -------------  -------------
session                        [SSH-CONNECT]  Section 6.1
x11                            [SSH-CONNECT]  Section 6.3.2
forwarded-tcpip                [SSH-CONNECT]  Section 7.2
direct-tcpip                   [SSH-CONNECT]  Section 7.2


Registry Name: Connection Protocol Global Request Names 
Reference: [RFC4250]
Registration Procedures: IETF Consensus

Registry:
Request type                   Reference      Note
-----------------------------  -------------  -----------
tcpip-forward                  [SSH-CONNECT]  Section 7.1
cancel-tcpip-forward           [SSH-CONNECT   Section 7.1


Registry Name: Connection Protocol Channel Request Names 
Reference: [RFC4250]
Registration Procedures: IETF Consensus

Registry:
Request type                   Reference      Note
-----------------------------  -------------  -------------
pty-req                        [SSH-CONNECT]  Section 6.2
x11-req                        [SSH-CONNECT]  Section 6.3.1
env                            [SSH-CONNECT]  Section 6.4
shell                          [SSH-CONNECT]  Section 6.5
exec                           [SSH-CONNECT]  Section 6.5
subsystem                      [SSH-CONNECT]  Section 6.5
window-change                  [SSH-CONNECT]  Section 6.7
xon-xoff                       [SSH-CONNECT]  Section 6.8
signal                         [SSH-CONNECT]  Section 6.9
exit-status                    [SSH-CONNECT]  Section 6.10
exit-signal                    [SSH-CONNECT]  Section 6.10
break                          [RFC4335]


Registry Name: Signal Names
Reference: [RFC4250]
Registration Procedures: IETF Consensus

Registry:
Signal                         Reference
-----------------------------  -------------
ABRT                           [SSH-CONNECT]
ALRM                           [SSH-CONNECT]
FPE                            [SSH-CONNECT]
HUP                            [SSH-CONNECT]
ILL                            [SSH-CONNECT]
INT                            [SSH-CONNECT]
KILL                           [SSH-CONNECT]
PIPE                           [SSH-CONNECT]
QUIT                           [SSH-CONNECT]
SEGV                           [SSH-CONNECT]
TERM                           [SSH-CONNECT]
USR1                           [SSH-CONNECT]
USR2                           [SSH-CONNECT]


Registry Name: Connection Protocol Subsystem Names 
Reference: [RFC4250]
Registration Procedures: IETF Consensus

Registry:
Subsystem Name                  Reference
------------------------------  ---------
publickey                       [RFC4819]
snmp                            [RFC5592]


Registry Name: Key Exchange Method Names 
Reference: [RFC4250]
Registration Procedures: IETF Consensus

Note: 
*All values beginning with the specified string and not containing "@". 

Registry:
Method name                           Reference    Note
------------------------------------  -----------  -----------
diffie-hellman-group-exchange-sha1    [RFC4419]    Section 4.1
diffie-hellman-group-exchange-sha256  [RFC4419]    Section 4.2
diffie-hellman-group1-sha1            [SSH-TRANS]  Section 8.1
diffie-hellman-group14-sha1           [SSH-TRANS]  Section 8.2
gss-group1-sha1-*                     [RFC4462]    Section 2.3
gss-gex-sha1-*                        [RFC4462]    Section 2.5
gss-*                                 [RFC4462]    Section 2.6
rsa1024-sha1                          [RFC4432] 
rsa2048-sha256                        [RFC4432]


Registry Name: Encryption Algorithm Names 
Reference: [RFC4250]
Registration Procedures: IETF Consensus

Registry:
Encryption Algorithm Name        Reference    Note
-------------------------------  -----------  ---------------------
3des-cbc                         [SSH-TRANS]  Section 6.3
blowfish-cbc                     [SSH-TRANS]  Section 6.3
twofish256-cbc                   [SSH-TRANS]  Section 6.3
twofish-cbc                      [SSH-TRANS]  Section 6.3
twofish192-cbc                   [SSH-TRANS]  Section 6.3
twofish128-cbc                   [SSH-TRANS]  Section 6.3
aes256-cbc                       [SSH-TRANS]  Section 6.3
aes192-cbc                       [SSH-TRANS]  Section 6.3
aes128-cbc                       [SSH-TRANS]  Section 6.3
serpent256-cbc                   [SSH-TRANS]  Section 6.3
serpent192-cbc                   [SSH-TRANS]  Section 6.3
serpent128-cbc                   [SSH-TRANS]  Section 6.3
arcfour                          [SSH-TRANS]  Section 6.3
idea-cbc                         [SSH-TRANS]  Section 6.3
cast128-cbc                      [SSH-TRANS]  Section 6.3
none                             [SSH-TRANS]  Section 6.3
des-cbc                          [FIPS-46-3]  HISTORIC, See page 4 
arcfour128                       [RFC4345]
arcfour256                       [RFC4345]
aes128-ctr                       [RFC4344]
aes192-ctr                       [RFC4344]
aes256-ctr                       [RFC4344]
3des-ctr                         [RFC4344]
blowfish-ctr                     [RFC4344]
twofish128-ctr                   [RFC4344]
twofish192-ctr                   [RFC4344]
twofish256-ctr                   [RFC4344]
serpent128-ctr                   [RFC4344]
serpent192-ctr                   [RFC4344]
serpent256-ctr                   [RFC4344]
idea-ctr                         [RFC4344]
cast128-ctr                      [RFC4344]
AEAD_AES_128_GCM                 [RFC-igoe-secsh-aes-gcm-03.txt]  Section 6.1
AEAD_AES_256_GCM                 [RFC-igoe-secsh-aes-gcm-03.txt]  Section 6.2


Registry Name: MAC Algorithm Names 
Reference: [RFC4250]
Registration Procedures: IETF Consensus

Registry:
MAC Algorithm Name               Reference    Note
-------------------------------  -----------  ------------
hmac-sha1                        [SSH-TRANS]  Section 6.4
hmac-sha1-96                     [SSH-TRANS]  Section 6.4
hmac-md5                         [SSH-TRANS]  Section 6.4
hmac-md5-96                      [SSH-TRANS]  Section 6.4
none                             [SSH-TRANS]  Section 6.4
AEAD_AES_128_GCM                 [RFC-igoe-secsh-aes-gcm-03.txt]  Section 6.1
AEAD_AES_256_GCM                 [RFC-igoe-secsh-aes-gcm-03.txt]  Section 6.2


Registry Name: Public Key Algorithm Names 
Reference: [RFC4250]
Registration Procedures: IETF Consensus

Registry:
Public Key Algorithm Name        Reference    Note 
-------------------------------  -----------  ------------
ssh-dss                          [SSH-TRANS]  Section 6.6
ssh-rsa                          [SSH-TRANS]  Section 6.6
spki-sign-rsa                    [SSH-TRANS]  Section 6.6
spki-sign-dss                    [SSH-TRANS]  Section 6.6
pgp-sign-rsa                     [SSH-TRANS]  Section 6.6
pgp-sign-dss                     [SSH-TRANS]  Section 6.6
null                             [RFC4462]    Section 5


Registry Name: Compression Algorithm Names 
Reference: [RFC4250]
Registration Procedures: IETF Consensus

Registry:
Compression Algorithm Name       Reference    Note
-------------------------------  -----------  -----------
none                             [SSH-TRANS]  Section 6.2
zlib                             [SSH-TRANS]  Section 6.2


Registry Name: SSH Public-Key File Header Tags
Reference: [RFC4716]
Registration Procedures: IETF Consensus

Note: Tags beginning with x- Reserved for Private Use

Registry:
Header Tag                       Reference  Note
-------------------------------  ---------  --------------
subject                          [RFC4716]  Section 3.3.1
comment                          [RFC4716]  Section 3.3.2


Registry Name: Publickey Subsystem Request Names 
Reference: [RFC4819]
Registration Procedures: IETF consensus

Registry: 
Request Name               Reference
-------------------------  ---------
version                    [RFC4819]
add                        [RFC4819]
remove                     [RFC4819]
list                       [RFC4819]
listattributes             [RFC4819]


Registry Name: Publickey Subsystem Response Names
Reference: [RFC4819]
Registration Procedures: IETF consensus

Registry:
Response Name              Reference
-------------------------  ---------
version                    [RFC4819]
status                     [RFC4819]
publickey                  [RFC4819]
attribute                  [RFC4819]


Registry Name: Publickey Subsystem Attributes 
Reference: [RFC4819]
Registration Procedures: IETF consensus

Registry:
Attribute Name             Reference
-------------------------  ---------
comment                    [RFC4819]
comment-language           [RFC4819]
command-override           [RFC4819]
subsystem                  [RFC4819]
x11                        [RFC4819]
shell                      [RFC4819]
exec                       [RFC4819]
agent                      [RFC4819]
env                        [RFC4819]
from                       [RFC4819]
port-forward               [RFC4819]
reverse-forward            [RFC4819]


Registry Name: Publickey Subsystem Status Codes
Reference: [RFC4819]
Range     Registration Procedures
--------  --------------------------
0-191     Standards Action
192-255   Reserved for Private Use

Registry:
Value     Status code                                  Reference
--------  -------------------------------------------  ----------
0         SSH_PUBLICKEY_SUCCESS                        [RFC4819]
1         SSH_PUBLICKEY_ACCESS_DENIED                  [RFC4819]
2         SSH_PUBLICKEY_STORAGE_EXCEEDED               [RFC4819]
3         SSH_PUBLICKEY_VERSION_NOT_SUPPORTED          [RFC4819]
4         SSH_PUBLICKEY_KEY_NOT_FOUND                  [RFC4819]
5         SSH_PUBLICKEY_KEY_NOT_SUPPORTED              [RFC4819]
6         SSH_PUBLICKEY_KEY_ALREADY_PRESENT            [RFC4819]
7         SSH_PUBLICKEY_GENERAL_FAILURE                [RFC4819]
8         SSH_PUBLICKEY_REQUEST_NOT_SUPPORTED          [RFC4819]
9         SSH_PUBLICKEY_ATTRIBUTE_NOT_SUPPORTED        [RFC4819]
10-191    Standards Action
192-255   Reserved


References
----------
[SSH-CONNECT][RFC4254]
           T. Ylonen and C. Lonvick, Ed., "SSH Connection Protocol", 
           RFC 4254, January 2006.

[SSH-TRANS][RFC4253]
           T. Ylonen and C. Lonvick, Ed., "SSH Transport Layer Protocol", 
           RFC 4253, January 2006.

[SSH-USERAUTH][RFC4252]
           T. Ylonen and C. Lonvick, Ed., "SSH Authentication Protocol",
           RFC 4252, January 2006.

[RFC4250]  S. Lehtinen and C. Lonvick, Ed., "SSH Protocol Assigned Numbers",
           RFC 4250, January 2006.

[RFC4251]  T. Ylonen and C. Lonvick, Ed., "SSH Protocol Architecture", 
           RFC 4251, January 2006.

[RFC4256]  F. Cusack and M. Forssen, "Generic Message Exchange Authentication for
           the Secure Shell Protocol (SSH)", RFC 4256, January 2006.

[RFC4335]  J. Galbraith and P. Remaker, "Secure Shell (SSH) Session Channel 
           Break Extension", RFC 4335, January 2006.

[RFC4344]  M. Bellare, T. Kohno and C. Namprempre, "SSH Transport Layer 
           Encryption Modes", RFC 4344, January 2006.

[RFC4345]  B. Harris, "Improved Arcfour Modes for the Secure Shell (SSH) 
           Transport Layer Protocol", RFC 4345, January 2006. 

[RFC4419]  M. Friedl, N. Provos, W. Simpson, "Diffie-Hellman Group Exchange for 
           the Secure Shell (SSH) Transport Layer Protocol", RFC 4419, March 2006.

[RFC4432]  B. Harris, "Rivest-Shamir-Adleman (RSA) key exchange for the 
           Secure Shell (SSH) Transport Layer Protocol", RFC 4432, March 2006.

[RFC4462]  J. Hutzelman, J. Salowey, J. Galbraith, and V. Welch, "GSSAPI 
           Authentication and Key Exchange for the Secure Shell Protocol",
           RFC 4462, May 2006.

[RFC4742]  M. Wasserman and T. Goddard, "Using the NETCONF Configuration Protocol 
           over Secure Shell (SSH)", RFC 4742, December 2006.

[RFC4716]  J. Galbraith and R. Thayer, "SSH Public Key File Format", RFC 4716,
           November 2006.

[RFC4819]  J. Galbraith, J. Van Dyke, B. McClure, J. Bright, "Secure Shell 
           Public-Key Subsystem", RFC 4819, March 2007.

[RFC5592]  D. Harrington, J. Salowey, W. Hardaker, "Secure Shell Transport Model 
           for SNMP", RFC 5592, June 2009.

[RFC-igoe-secsh-aes-gcm-03.txt]
           K. Igoe, J. Solinas, "AES Galois Counter Mode for the Secure Shell 
           Transport Layer Protocol", RFC XXXX, Month Year. 


(Registry created 2005-06-02)

[]
