ssh: removed pre-historic ssh specs from the doc-dir

1 files changed, 0 insertions, 1881 deletions

diff --git a/lib/ssh/doc/standard/draft-ietf-secsh-userauth-18.2.ps b/lib/ssh/doc/standard/draft-ietf-secsh-userauth-18.2.ps
deleted file mode 100644
index be5799dbce..0000000000
--- a/lib/ssh/doc/standard/draft-ietf-secsh-userauth-18.2.ps
+++ /dev/null
@@ -1,1881 +0,0 @@
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-(Network Working Group                                          T. Ylonen) s
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-(Internet-Draft                          SSH Communications Security Corp) s
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-(Expires: March 2, 2003                                    D. Moffat, Ed.) s
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-(                                                   Sun Microsystems, Inc) s
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-(                                                          September 2002) s
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-(   material or to cite them other than as "work in progress.") s
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-(   The list of current Internet-Drafts can be accessed at http://) s
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-(   http://www.ietf.org/shadow.html.) s
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-(   This Internet-Draft will expire on March 2, 2003.) s
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-(Copyright Notice) s
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-(   Copyright \(C\) The Internet Society \(2002\). All Rights Reserved.) s
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-(Abstract) s
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-(   SSH is a protocol for secure remote login and other secure network) s
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-(   services over an insecure network. This document describes the SSH) s
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-(   authentication protocol framework and public key, password, and) s
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-(   host-based client authentication methods. Additional authentication) s
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-(   methods are described in separate documents. The SSH authentication) s
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-(   protocol runs on top of the SSH transport layer protocol and provides) s
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-(   2.    Introduction . . . . . . . . . . . . . . . . . . . . . . . .  3) s
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-(   3.    Conventions Used in This Document  . . . . . . . . . . . . .  3) s
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-(   3.1.1 Authentication Requests  . . . . . . . . . . . . . . . . . .  4) s
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-(   3.1.2 Responses to Authentication Requests . . . . . . . . . . . .  5) s
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-(   3.1.3 The "none" Authentication Request  . . . . . . . . . . . . .  6) s
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-(   3.1.4 Completion of User Authentication  . . . . . . . . . . . . .  6) s
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-(   3.1.5 Banner Message . . . . . . . . . . . . . . . . . . . . . . .  7) s
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-(   3.2   Authentication Protocol Message Numbers  . . . . . . . . . .  7) s
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-(   3.3   Public Key Authentication Method: publickey  . . . . . . . .  8) s
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-(   3.4   Password Authentication Method: password . . . . . . . . . . 10) s
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-(   3.5   Host-Based Authentication: hostbased . . . . . . . . . . . . 11) s
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-(   4.    Security Considerations  . . . . . . . . . . . . . . . . . . 12) s
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-(         Normative  . . . . . . . . . . . . . . . . . . . . . . . . . 13) s
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-(1. Contributors) s
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-(   The major original contributors of this document were: Tatu Ylonen,) s
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-(   Tero Kivinen, Timo J. Rinne, Sami Lehtinen \(all of SSH Communications) s
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-(   details at: http://ietf.org/html.charters/secsh-charter.html) s
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-(   This document should be read only after reading the SSH architecture) s
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-(   document [SSH-ARCH]. This document freely uses terminology and) s
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-(   notation from the architecture document without reference or further) s
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-(   explanation.) s
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-(   The service name for this protocol is "ssh-userauth".) s
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-(   When this protocol starts, it receives the session identifier from) s
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-(   described in [RFC2119]) s
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-(   The architecture document also discusses the algorithm naming) s
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-(   conventions that MUST be used with the SSH protocols.) s
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-/fname () def
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-5 723 M
-(Internet-Draft        SSH Authentication Protocol         September 2002) s
-5 690 M
-(   authentication methods can be used to continue the exchange at any) s
-5 679 M
-(   given time. The client has the freedom to try the methods listed by) s
-5 668 M
-(   the server in any order. This gives the server complete control over) s
-5 657 M
-(   the authentication process if desired, but also gives enough) s
-5 646 M
-(   flexibility for the client to use the methods it supports or that are) s
-5 635 M
-(   most convenient for the user, when multiple methods are offered by) s
-5 624 M
-(   the server.) s
-5 602 M
-(   Authentication methods are identified by their name, as defined in) s
-5 591 M
-(   [SSH-ARCH].  The "none" method is reserved, and MUST NOT be listed as) s
-5 580 M
-(   supported.  However, it MAY be sent by the client.  The server MUST) s
-5 569 M
-(   always reject this request, unless the client is to be allowed in) s
-5 558 M
-(   without any authentication, in which case the server MUST accept this) s
-5 547 M
-(   request.  The main purpose of sending this request is to get the list) s
-5 536 M
-(   of supported methods from the server.) s
-5 514 M
-(   The server SHOULD have a timeout for authentication, and disconnect) s
-5 503 M
-(   if the authentication has not been accepted within the timeout) s
-5 492 M
-(   period. The RECOMMENDED timeout period is 10 minutes.  Additionally,) s
-5 481 M
-(   the implementation SHOULD limit the number of failed authentication) s
-5 470 M
-(   attempts a client may perform in a single session \(the RECOMMENDED) s
-5 459 M
-(   limit is 20 attempts\).  If the threshold is exceeded, the server) s
-5 448 M
-(   SHOULD disconnect.) s
-5 426 M
-(3.1.1 Authentication Requests) s
-5 404 M
-(   All authentication requests MUST use the following message format.) s
-5 393 M
-(   Only the first few fields are defined; the remaining fields depend on) s
-5 382 M
-(   the authentication method.) s
-5 360 M
-(     byte      SSH_MSG_USERAUTH_REQUEST) s
-5 349 M
-(     string    user name \(in ISO-10646 UTF-8 encoding [RFC2279]\)) s
-5 338 M
-(     string    service name \(in US-ASCII\)) s
-5 327 M
-(     string    method name \(US-ASCII\)) s
-5 316 M
-(     The rest of the packet is method-specific.) s
-5 294 M
-(   The user name and service are repeated in every new authentication) s
-5 283 M
-(   attempt, and MAY change.  The server implementation MUST carefully) s
-5 272 M
-(   check them in every message, and MUST flush any accumulated) s
-5 261 M
-(   authentication states if they change.  If it is unable to flush some) s
-5 250 M
-(   authentication state, it MUST disconnect if the user or service name) s
-5 239 M
-(   changes.) s
-5 217 M
-(   The service name specifies the service to start after authentication.) s
-5 206 M
-(   There may be several different authenticated services provided.  If) s
-5 195 M
-(   the requested service is not available, the server MAY disconnect) s
-5 184 M
-(   immediately or at any later time.  Sending a proper disconnect) s
-5 173 M
-(   message is RECOMMENDED.  In any case, if the service does not exist,) s
-5 129 M
-(Ylonen & Moffat          Expires March 2, 2003                  [Page 4]) s
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- 595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
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-%%BeginPageSetup
-_S
-75 0 translate
-/pagenum 5 def
-/fname () def
-/fdir () def
-/ftail () def
-/user_header_p false def
-%%EndPageSetup
-5 723 M
-(Internet-Draft        SSH Authentication Protocol         September 2002) s
-5 690 M
-(   authentication MUST NOT be accepted.) s
-5 668 M
-(   If the requested user does not exist, the server MAY disconnect, or) s
-5 657 M
-(   MAY send a bogus list of acceptable authentication methods, but never) s
-5 646 M
-(   accept any.  This makes it possible for the server to avoid) s
-5 635 M
-(   disclosing information on which accounts exist.  In any case, if the) s
-5 624 M
-(   user does not exist, the authentication request MUST NOT be accepted.) s
-5 602 M
-(   While there is usually little point for clients to send requests that) s
-5 591 M
-(   the server does not list as acceptable, sending such requests is not) s
-5 580 M
-(   an error, and the server SHOULD simply reject requests that it does) s
-5 569 M
-(   not recognize.) s
-5 547 M
-(   An authentication request MAY result in a further exchange of) s
-5 536 M
-(   messages.  All such messages depend on the authentication method) s
-5 525 M
-(   used, and the client MAY at any time continue with a new) s
-5 514 M
-(   SSH_MSG_USERAUTH_REQUEST message, in which case the server MUST) s
-5 503 M
-(   abandon the previous authentication attempt and continue with the new) s
-5 492 M
-(   one.) s
-5 470 M
-(3.1.2 Responses to Authentication Requests) s
-5 448 M
-(   If the server rejects the authentication request, it MUST respond) s
-5 437 M
-(   with the following:) s
-5 415 M
-(     byte      SSH_MSG_USERAUTH_FAILURE) s
-5 404 M
-(     string    authentications that can continue) s
-5 393 M
-(     boolean   partial success) s
-5 371 M
-(   "Authentications that can continue" is a comma-separated list of) s
-5 360 M
-(   authentication method names that may productively continue the) s
-5 349 M
-(   authentication dialog.) s
-5 327 M
-(   It is RECOMMENDED that servers only include those methods in the list) s
-5 316 M
-(   that are actually useful.  However, it is not illegal to include) s
-5 305 M
-(   methods that cannot be used to authenticate the user.) s
-5 283 M
-(   Already successfully completed authentications SHOULD NOT be included) s
-5 272 M
-(   in the list, unless they really should be performed again for some) s
-5 261 M
-(   reason.) s
-5 239 M
-(   "Partial success" MUST be TRUE if the authentication request to which) s
-5 228 M
-(   this is a response was successful.  It MUST be FALSE if the request) s
-5 217 M
-(   was not successfully processed.) s
-5 195 M
-(   When the server accepts authentication, it MUST respond with the) s
-5 184 M
-(   following:) s
-5 129 M
-(Ylonen & Moffat          Expires March 2, 2003                  [Page 5]) s
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-5 723 M
-(Internet-Draft        SSH Authentication Protocol         September 2002) s
-5 690 M
-(     byte      SSH_MSG_USERAUTH_SUCCESS) s
-5 668 M
-(   Note that this is not sent after each step in a multi-method) s
-5 657 M
-(   authentication sequence, but only when the authentication is) s
-5 646 M
-(   complete.) s
-5 624 M
-(   The client MAY send several authentication requests without waiting) s
-5 613 M
-(   for responses from previous requests.  The server MUST process each) s
-5 602 M
-(   request completely and acknowledge any failed requests with a) s
-5 591 M
-(   SSH_MSG_USERAUTH_FAILURE message before processing the next request.) s
-5 569 M
-(   A request that results in further exchange of messages will be) s
-5 558 M
-(   aborted by a second request. It is not possible to send a second) s
-5 547 M
-(   request without waiting for a response from the server, if the first) s
-5 536 M
-(   request will result in further exchange of messages.  No) s
-5 525 M
-(   SSH_MSG_USERAUTH_FAILURE message will be sent for the aborted method.) s
-5 503 M
-(   SSH_MSG_USERAUTH_SUCCESS MUST be sent only once. When) s
-5 492 M
-(   SSH_MSG_USERAUTH_SUCCESS has been sent, any further authentication) s
-5 481 M
-(   requests received after that SHOULD be silently ignored.) s
-5 459 M
-(   Any non-authentication messages sent by the client after the request) s
-5 448 M
-(   that resulted in SSH_MSG_USERAUTH_SUCCESS being sent MUST be passed) s
-5 437 M
-(   to the service being run on top of this protocol.  Such messages can) s
-5 426 M
-(   be identified by their message numbers \(see Section Message Numbers) s
-5 415 M
-(   \(Section 3.2\)\).) s
-5 393 M
-(3.1.3 The "none" Authentication Request) s
-5 371 M
-(   A client may request a list of authentication methods that may) s
-5 360 M
-(   continue by using the "none" authentication method.) s
-5 338 M
-(   If no authentication at all is needed for the user, the server MUST) s
-5 327 M
-(   return SSH_MSG_USERAUTH_SUCCESS.  Otherwise, the server MUST return) s
-5 316 M
-(   SSH_MSG_USERAUTH_FAILURE and MAY return with it a list of) s
-5 305 M
-(   authentication methods that can continue.) s
-5 283 M
-(   This method MUST NOT be listed as supported by the server.) s
-5 261 M
-(3.1.4 Completion of User Authentication) s
-5 239 M
-(   Authentication is complete when the server has responded with) s
-5 228 M
-(   SSH_MSG_USERAUTH_SUCCESS; all authentication related messages) s
-5 217 M
-(   received after sending this message SHOULD be silently ignored.) s
-5 195 M
-(   After sending SSH_MSG_USERAUTH_SUCCESS, the server starts the) s
-5 184 M
-(   requested service.) s
-5 129 M
-(Ylonen & Moffat          Expires March 2, 2003                  [Page 6]) s
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-%%BeginPageSetup
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-/pagenum 7 def
-/fname () def
-/fdir () def
-/ftail () def
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-5 723 M
-(Internet-Draft        SSH Authentication Protocol         September 2002) s
-5 690 M
-(3.1.5 Banner Message) s
-5 668 M
-(   In some jurisdictions, sending a warning message before) s
-5 657 M
-(   authentication may be relevant for getting legal protection.  Many) s
-5 646 M
-(   UNIX machines, for example, normally display text from `/etc/issue',) s
-5 635 M
-(   or use "tcp wrappers" or similar software to display a banner before) s
-5 624 M
-(   issuing a login prompt.) s
-5 602 M
-(   The SSH server may send a SSH_MSG_USERAUTH_BANNER message at any time) s
-5 591 M
-(   before authentication is successful.  This message contains text to) s
-5 580 M
-(   be displayed to the client user before authentication is attempted.) s
-5 569 M
-(   The format is as follows:) s
-5 547 M
-(     byte      SSH_MSG_USERAUTH_BANNER) s
-5 536 M
-(     string    message \(ISO-10646 UTF-8\)) s
-5 525 M
-(     string    language tag \(as defined in [RFC3066]\)) s
-5 503 M
-(   The client SHOULD by default display the message on the screen.) s
-5 492 M
-(   However, since the message is likely to be sent for every login) s
-5 481 M
-(   attempt, and since some client software will need to open a separate) s
-5 470 M
-(   window for this warning, the client software may allow the user to) s
-5 459 M
-(   explicitly disable the display of banners from the server.  The) s
-5 448 M
-(   message may consist of multiple lines.) s
-5 426 M
-(   If the message string is displayed, control character filtering) s
-5 415 M
-(   discussed in [SSH-ARCH] SHOULD be used to avoid attacks by sending) s
-5 404 M
-(   terminal control characters.) s
-5 382 M
-(3.2 Authentication Protocol Message Numbers) s
-5 360 M
-(   All message numbers used by this authentication protocol are in the) s
-5 349 M
-(   range from 50 to 79, which is part of the range reserved for) s
-5 338 M
-(   protocols running on top of the SSH transport layer protocol.) s
-5 316 M
-(   Message numbers of 80 and higher are reserved for protocols running) s
-5 305 M
-(   after this authentication protocol, so receiving one of them before) s
-5 294 M
-(   authentication is complete is an error, to which the server MUST) s
-5 283 M
-(   respond by disconnecting \(preferably with a proper disconnect message) s
-5 272 M
-(   sent first to ease troubleshooting\).) s
-5 250 M
-(   After successful authentication, such messages are passed to the) s
-5 239 M
-(   higher-level service.) s
-5 217 M
-(   These are the general authentication message codes:) s
-5 195 M
-(     #define SSH_MSG_USERAUTH_REQUEST            50) s
-5 184 M
-(     #define SSH_MSG_USERAUTH_FAILURE            51) s
-5 173 M
-(     #define SSH_MSG_USERAUTH_SUCCESS            52) s
-5 129 M
-(Ylonen & Moffat          Expires March 2, 2003                  [Page 7]) s
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- 595.000000 0 rlineto 0 842.000000 rlineto -595.000000 0 rlineto
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-%%BeginPageSetup
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-/pagenum 8 def
-/fname () def
-/fdir () def
-/ftail () def
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-5 723 M
-(Internet-Draft        SSH Authentication Protocol         September 2002) s
-5 690 M
-(     #define SSH_MSG_USERAUTH_BANNER             53) s
-5 668 M
-(   In addition to the above, there is a range of message numbers) s
-5 657 M
-(   \(60..79\) reserved for method-specific messages.  These messages are) s
-5 646 M
-(   only sent by the server \(client sends only SSH_MSG_USERAUTH_REQUEST) s
-5 635 M
-(   messages\). Different authentication methods reuse the same message) s
-5 624 M
-(   numbers.) s
-5 602 M
-(3.3 Public Key Authentication Method: publickey) s
-5 580 M
-(   The only REQUIRED authentication method is public key authentication.) s
-5 569 M
-(   All implementations MUST support this method; however, not all users) s
-5 558 M
-(   need to have public keys, and most local policies are not likely to) s
-5 547 M
-(   require public key authentication for all users in the near future.) s
-5 525 M
-(   With this method, the possession of a private key serves as) s
-5 514 M
-(   authentication.  This method works by sending a signature created) s
-5 503 M
-(   with a private key of the user.  The server MUST check that the key) s
-5 492 M
-(   is a valid authenticator for the user, and MUST check that the) s
-5 481 M
-(   signature is valid.  If both hold, the authentication request MUST be) s
-5 470 M
-(   accepted; otherwise it MUST be rejected.  \(Note that the server MAY) s
-5 459 M
-(   require additional authentications after successful authentication.\)) s
-5 437 M
-(   Private keys are often stored in an encrypted form at the client) s
-5 426 M
-(   host, and the user must supply a passphrase before the signature can) s
-5 415 M
-(   be generated. Even if they are not, the signing operation involves) s
-5 404 M
-(   some expensive computation.  To avoid unnecessary processing and user) s
-5 393 M
-(   interaction, the following message is provided for querying whether) s
-5 382 M
-(   authentication using the key would be acceptable.) s
-5 360 M
-(     byte      SSH_MSG_USERAUTH_REQUEST) s
-5 349 M
-(     string    user name) s
-5 338 M
-(     string    service) s
-5 327 M
-(     string    "publickey") s
-5 316 M
-(     boolean   FALSE) s
-5 305 M
-(     string    public key algorithm name) s
-5 294 M
-(     string    public key blob) s
-5 272 M
-(   Public key algorithms are defined in the transport layer) s
-5 261 M
-(   specification [SSH-TRANS]. The public key blob may contain) s
-5 250 M
-(   certificates.) s
-5 228 M
-(   Any public key algorithm may be offered for use in authentication.) s
-5 217 M
-(   In particular, the list is not constrained by what was negotiated) s
-5 206 M
-(   during key exchange.  If the server does not support some algorithm,) s
-5 195 M
-(   it MUST simply reject the request.) s
-5 173 M
-(   The server MUST respond to this message with either) s
-5 129 M
-(Ylonen & Moffat          Expires March 2, 2003                  [Page 8]) s
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-/fname () def
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-5 723 M
-(Internet-Draft        SSH Authentication Protocol         September 2002) s
-5 690 M
-(   SSH_MSG_USERAUTH_FAILURE or with the following:) s
-5 668 M
-(     byte      SSH_MSG_USERAUTH_PK_OK) s
-5 657 M
-(     string    public key algorithm name from the request) s
-5 646 M
-(     string    public key blob from the request) s
-5 624 M
-(   To perform actual authentication, the client MAY then send a) s
-5 613 M
-(   signature generated using the private key.  The client MAY send the) s
-5 602 M
-(   signature directly without first verifying whether the key is) s
-5 591 M
-(   acceptable. The signature is sent using the following packet:) s
-5 569 M
-(     byte      SSH_MSG_USERAUTH_REQUEST) s
-5 558 M
-(     string    user name) s
-5 547 M
-(     string    service) s
-5 536 M
-(     string    "publickey") s
-5 525 M
-(     boolean   TRUE) s
-5 514 M
-(     string    public key algorithm name) s
-5 503 M
-(     string    public key to be used for authentication) s
-5 492 M
-(     string    signature) s
-5 470 M
-(   Signature is a signature by the corresponding private key over the) s
-5 459 M
-(   following data, in the following order:) s
-5 437 M
-(     string    session identifier) s
-5 426 M
-(     byte      SSH_MSG_USERAUTH_REQUEST) s
-5 415 M
-(     string    user name) s
-5 404 M
-(     string    service) s
-5 393 M
-(     string    "publickey") s
-5 382 M
-(     boolean   TRUE) s
-5 371 M
-(     string    public key algorithm name) s
-5 360 M
-(     string    public key to be used for authentication) s
-5 338 M
-(   When the server receives this message, it MUST check whether the) s
-5 327 M
-(   supplied key is acceptable for authentication, and if so, it MUST) s
-5 316 M
-(   check whether the signature is correct.) s
-5 294 M
-(   If both checks succeed, this method is successful.  Note that the) s
-5 283 M
-(   server may require additional authentications.  The server MUST) s
-5 272 M
-(   respond with SSH_MSG_USERAUTH_SUCCESS \(if no more authentications are) s
-5 261 M
-(   needed\), or SSH_MSG_USERAUTH_FAILURE \(if the request failed, or more) s
-5 250 M
-(   authentications are needed\).) s
-5 228 M
-(   The following method-specific message numbers are used by the) s
-5 217 M
-(   publickey authentication method.) s
-5 195 M
-(     /* Key-based */) s
-5 184 M
-(     #define SSH_MSG_USERAUTH_PK_OK              60) s
-5 129 M
-(Ylonen & Moffat          Expires March 2, 2003                  [Page 9]) s
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-(Internet-Draft        SSH Authentication Protocol         September 2002) s
-5 690 M
-(3.4 Password Authentication Method: password) s
-5 668 M
-(   Password authentication uses the following packets.  Note that a) s
-5 657 M
-(   server MAY request the user to change the password.  All) s
-5 646 M
-(   implementations SHOULD support password authentication.) s
-5 624 M
-(     byte      SSH_MSG_USERAUTH_REQUEST) s
-5 613 M
-(     string    user name) s
-5 602 M
-(     string    service) s
-5 591 M
-(     string    "password") s
-5 580 M
-(     boolean   FALSE) s
-5 569 M
-(     string    plaintext password \(ISO-10646 UTF-8\)) s
-5 547 M
-(   Note that the password is encoded in ISO-10646 UTF-8.  It is up to) s
-5 536 M
-(   the server how it interprets the password and validates it against) s
-5 525 M
-(   the password database.  However, if the client reads the password in) s
-5 514 M
-(   some other encoding \(e.g., ISO 8859-1 \(ISO Latin1\)\), it MUST convert) s
-5 503 M
-(   the password to ISO-10646 UTF-8 before transmitting, and the server) s
-5 492 M
-(   MUST convert the password to the encoding used on that system for) s
-5 481 M
-(   passwords.) s
-5 459 M
-(   Note that even though the cleartext password is transmitted in the) s
-5 448 M
-(   packet, the entire packet is encrypted by the transport layer.  Both) s
-5 437 M
-(   the server and the client should check whether the underlying) s
-5 426 M
-(   transport layer provides confidentiality \(i.e., if encryption is) s
-5 415 M
-(   being used\).  If no confidentiality is provided \(none cipher\),) s
-5 404 M
-(   password authentication SHOULD be disabled.  If there is no) s
-5 393 M
-(   confidentiality or no MAC, password change SHOULD be disabled.) s
-5 371 M
-(   Normally, the server responds to this message with success or) s
-5 360 M
-(   failure. However, if the password has expired the server SHOULD) s
-5 349 M
-(   indicate this by responding with SSH_MSG_USERAUTH_PASSWD_CHANGEREQ.) s
-5 338 M
-(   In anycase the server MUST NOT allow an expired password to be used) s
-5 327 M
-(   for authentication.) s
-5 305 M
-(     byte      SSH_MSG_USERAUTH_PASSWD_CHANGEREQ) s
-5 294 M
-(     string    prompt \(ISO-10646 UTF-8\)) s
-5 283 M
-(     string    language tag \(as defined in [RFC3066]\)) s
-5 261 M
-(   In this case, the client MAY continue with a different authentication) s
-5 250 M
-(   method, or request a new password from the user and retry password) s
-5 239 M
-(   authentication using the following message. The client MAY also send) s
-5 228 M
-(   this message instead of the normal password authentication request) s
-5 217 M
-(   without the server asking for it.) s
-5 195 M
-(     byte      SSH_MSG_USERAUTH_REQUEST) s
-5 184 M
-(     string    user name) s
-5 173 M
-(     string    service) s
-5 129 M
-(Ylonen & Moffat          Expires March 2, 2003                 [Page 10]) s
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-(     string    "password") s
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-(     boolean   TRUE) s
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-(     string    plaintext old password \(ISO-10646 UTF-8\)) s
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-(     string    plaintext new password \(ISO-10646 UTF-8\)) s
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-(   The server must reply to request message with) s
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-(   SSH_MSG_USERAUTH_SUCCESS, SSH_MSG_USERAUTH_FAILURE, or another) s
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-(   SSH_MSG_USERAUTH_PASSWD_CHANGEREQ.  The meaning of these is as) s
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-(   follows:) s
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-(      SSH_MSG_USERAUTH_SUCCESS The password has been changed, and) s
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-(      authentication has been successfully completed.) s
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-(      SSH_MSG_USERAUTH_FAILURE with partial success The password has) s
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-(      been changed, but more authentications are needed.) s
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-(      SSH_MSG_USERAUTH_FAILURE without partial success The password has) s
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-(      not been changed.  Either password changing was not supported, or) s
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-(      the old password was bad.  Note that if the server has already) s
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-(      sent SSH_MSG_USERAUTH_PASSWD_CHANGEREQ, we know that it supports) s
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-(      changing the password.) s
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-(      SSH_MSG_USERAUTH_CHANGEREQ The password was not changed because) s
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-(      the new password was not acceptable \(e.g. too easy to guess\).) s
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-(   The following method-specific message numbers are used by the) s
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-(   password authentication method.) s
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-(     #define SSH_MSG_USERAUTH_PASSWD_CHANGEREQ   60) s
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-(3.5 Host-Based Authentication: hostbased) s
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-(   Some sites wish to allow authentication based on the host where the) s
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-(   user is coming from, and the user name on the remote host.  While) s
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-(   this form of authentication is not suitable for high-security sites,) s
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-(   it can be very convenient in many environments.  This form of) s
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-(   authentication is OPTIONAL. When used, special care SHOULD be taken) s
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-(   to prevent a regular user from obtaining the private host key.) s
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-(   The client requests this form of authentication by sending the) s
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-(   following message.  It is similar to the UNIX "rhosts" and) s
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-(   "hosts.equiv" styles of authentication, except that the identity of) s
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-(   the client host is checked more rigorously.) s
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-(   This method works by having the client send a signature created with) s
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-(   the private key of the client host, which the server checks with that) s
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-(   host's public key.  Once the client host's identity is established,) s
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-(Internet-Draft        SSH Authentication Protocol         September 2002) s
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-(   authorization \(but no further authentication\) is performed based on) s
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-(   the user names on the server and the client, and the client host) s
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-(   name.) s
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-(     byte      SSH_MSG_USERAUTH_REQUEST) s
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-(     string    user name) s
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-(     string    service) s
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-(     string    "hostbased") s
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-(     string    public key algorithm for host key) s
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-(     string    public host key and certificates for client host) s
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-(     string    client host name \(FQDN; US-ASCII\)) s
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-(     string    user name on the client host \(ISO-10646 UTF-8\)) s
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-(     string    signature) s
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-(   Public key algorithm names for use in "public key algorithm for host) s
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-(   key" are defined in the transport layer specification.  The "public) s
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-(   host key for client host" may include certificates.) s
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-(   Signature is a signature with the private host key of the following) s
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-(   data, in this order:) s
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-(     string    session identifier) s
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-(     byte      SSH_MSG_USERAUTH_REQUEST) s
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-(     string    user name) s
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-(     string    service) s
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-(     string    "hostbased") s
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-(     string    public key algorithm for host key) s
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-(     string    public host key and certificates for client host) s
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-(     string    client host name \(FQDN; US-ASCII\)) s
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-(     string    user name on the client host\(ISO-10646 UTF-8\)) s
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-(   The server MUST verify that the host key actually belongs to the) s
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-(   client host named in the message, that the given user on that host is) s
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-(   allowed to log in, and that the signature is a valid signature on the) s
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-(   appropriate value by the given host key.  The server MAY ignore the) s
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-(   client user name, if it wants to authenticate only the client host.) s
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-(   It is RECOMMENDED that whenever possible, the server perform) s
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-(   additional checks to verify that the network address obtained from) s
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-(   the \(untrusted\) network matches the given client host name.  This) s
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-(   makes exploiting compromised host keys more difficult.  Note that) s
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-(   this may require special handling for connections coming through a) s
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-(   firewall.) s
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-(4. Security Considerations) s
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-(   The purpose of this protocol is to perform client user) s
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-(   authentication. It assumed that this runs over a secure transport) s
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-(Internet-Draft        SSH Authentication Protocol         September 2002) s
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-(   layer protocol, which has already authenticated the server machine,) s
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-(   established an encrypted communications channel, and computed a) s
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-(   unique session identifier for this session. The transport layer) s
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-(   provides forward secrecy for password authentication and other) s
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-(   methods that rely on secret data.) s
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-(   Full security considerations for this protocol are provided in) s
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-(   Section 8 of [SSH-ARCH]) s
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-(Normative) s
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-(   [SSH-ARCH]) s
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-(              Ylonen, T., "SSH Protocol Architecture", I-D) s
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-(              draft-ietf-architecture-15.txt, Oct 2003.) s
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-(   [SSH-TRANS]) s
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-(              Ylonen, T., "SSH Transport Layer Protocol", I-D) s
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-(              draft-ietf-transport-17.txt, Oct 2003.) s
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-(   [SSH-USERAUTH]) s
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-(              Ylonen, T., "SSH Authentication Protocol", I-D) s
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-(              draft-ietf-userauth-18.txt, Oct 2003.) s
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-(   [SSH-CONNECT]) s
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-(              Ylonen, T., "SSH Connection Protocol", I-D) s
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-(              draft-ietf-connect-18.txt, Oct 2003.) s
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-(   [SSH-NUMBERS]) s
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-(              Lehtinen, S. and D. Moffat, "SSH Protocol Assigned) s
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-(              Numbers", I-D draft-ietf-secsh-assignednumbers-05.txt, Oct) s
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-(              2003.) s
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-(   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate) s
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-(              Requirement Levels", BCP 14, RFC 2119, March 1997.) s
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-(Informative) s
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-(   [RFC3066]  Alvestrand, H., "Tags for the Identification of) s
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-(              Languages", BCP 47, RFC 3066, January 2001.) s
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-(   [RFC2279]  Yergeau, F., "UTF-8, a transformation format of ISO) s
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-(              10646", RFC 2279, January 1998.) s
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-(Internet-Draft        SSH Authentication Protocol         September 2002) s
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-(Authors' Addresses) s
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-(   Tatu Ylonen) s
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-(   SSH Communications Security Corp) s
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-(   Fredrikinkatu 42) s
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-(   HELSINKI  FIN-00100) s
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-(   Finland) s
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-(   EMail: [email protected]) s
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-(   Darren J. Moffat \(editor\)) s
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-(   Sun Microsystems, Inc) s
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-(   17 Network Circle) s
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-(   Menlo Park  95025) s
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-(   USA) s
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-(   EMail: [email protected]) s
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-(Internet-Draft        SSH Authentication Protocol         September 2002) s
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-(Intellectual Property Statement) s
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-(   The IETF takes no position regarding the validity or scope of any) s
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-(   intellectual property or other rights that might be claimed to) s
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-(   pertain to the implementation or use of the technology described in) s
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-(   this document or the extent to which any license under such rights) s
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-(   might or might not be available; neither does it represent that it) s
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-(   has made any effort to identify any such rights. Information on the) s
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-(   IETF's procedures with respect to rights in standards-track and) s
-5 591 M
-(   standards-related documentation can be found in BCP-11. Copies of) s
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-(   claims of rights made available for publication and any assurances of) s
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-(   licenses to be made available, or the result of an attempt made to) s
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-(   obtain a general license or permission for the use of such) s
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-(   proprietary rights by implementors or users of this specification can) s
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-(   be obtained from the IETF Secretariat.) s
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-(   The IETF invites any interested party to bring to its attention any) s
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-(   copyrights, patents or patent applications, or other proprietary) s
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-(   rights which may cover technology that may be required to practice) s
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-(   this standard. Please address the information to the IETF Executive) s
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-(   Director.) s
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-(   The IETF has been notified of intellectual property rights claimed in) s
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-(   regard to some or all of the specification contained in this) s
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-(   document. For more information consult the online list of claimed) s
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-(   rights.) s
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-(Full Copyright Statement) s
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-(   Copyright \(C\) The Internet Society \(2002\). All Rights Reserved.) s
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-(   This document and translations of it may be copied and furnished to) s
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-(   others, and derivative works that comment on or otherwise explain it) s
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-(   or assist in its implementation may be prepared, copied, published) s
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-(   and distributed, in whole or in part, without restriction of any) s
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-(   kind, provided that the above copyright notice and this paragraph are) s
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-(   included on all such copies and derivative works. However, this) s
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-(   document itself may not be modified in any way, such as by removing) s
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-(   the copyright notice or references to the Internet Society or other) s
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-(   Internet organizations, except as needed for the purpose of) s
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-(   developing Internet standards in which case the procedures for) s
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-(   copyrights defined in the Internet Standards process must be) s
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-(   followed, or as required to translate it into languages other than) s
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-(   English.) s
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-(   The limited permissions granted above are perpetual and will not be) s
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-(   revoked by the Internet Society or its successors or assignees.) s
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-(   This document and the information contained herein is provided on an) s
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-(   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING) s
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-(   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING) s
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-(   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION) s
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-(   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF) s
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-(   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.) s
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-(Acknowledgment) s
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-(   Funding for the RFC Editor function is currently provided by the) s
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-(   Internet Society.) s
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