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author | Andreas Schultz <aschultz@tpip.net> | 2013-01-14 18:19:09 +0100 |
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committer | Ingela Anderton Andin <ingela@erlang.org> | 2013-03-28 11:29:37 +0100 |
commit | 9a913b0219188a96f55d5f266bc2ce52c034aa4c (patch) | |
tree | 0dcedc31159a472b673d4ddc57a0e55ed03680ea /lib/ssl/doc/src | |
parent | b5d0475fa744da644ed6f9e4232a0aaf660a5f35 (diff) | |
download | otp-9a913b0219188a96f55d5f266bc2ce52c034aa4c.tar.gz otp-9a913b0219188a96f55d5f266bc2ce52c034aa4c.tar.bz2 otp-9a913b0219188a96f55d5f266bc2ce52c034aa4c.zip |
SSL: add documentation for PSK and SRP ciphers options
Diffstat (limited to 'lib/ssl/doc/src')
-rw-r--r-- | lib/ssl/doc/src/ssl.xml | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/lib/ssl/doc/src/ssl.xml b/lib/ssl/doc/src/ssl.xml index e9858a3220..d78deb3252 100644 --- a/lib/ssl/doc/src/ssl.xml +++ b/lib/ssl/doc/src/ssl.xml @@ -79,6 +79,7 @@ {keyfile, path()} | {password, string()} | {cacerts, [der_encoded()]} | {cacertfile, path()} | |{dh, der_encoded()} | {dhfile, path()} | {ciphers, ciphers()} | + {user_lookup_fun, {fun(), term()}}, {psk_identity, string()}, {srp_identity, {string(), string()}} | {ssl_imp, ssl_imp()} | {reuse_sessions, boolean()} | {reuse_session, fun()} {next_protocols_advertised, [binary()]} | {client_preferred_next_protocols, client | server, [binary()]} @@ -123,6 +124,7 @@ {key_exchange(), cipher(), hash()}</c></p> <p><c>key_exchange() = rsa | dhe_dss | dhe_rsa | dh_anon + | psk | dhe_psk | rsa_psk | srp_anon | srp_dss | srp_rsa </c></p> <p><c>cipher() = rc4_128 | des_cbc | '3des_ede_cbc' @@ -134,6 +136,9 @@ <p><c>prf_random() = client_random | server_random </c></p> + <p><c>srp_param_type() = srp_1024 | srp_1536 | srp_2048 | srp_3072 + | srp_4096 | srp_6144 | srp_8192</c></p> + </section> <section> @@ -292,6 +297,35 @@ fun(OtpCert :: #'OTPCertificate'{}, Event :: {bad_cert, Reason :: atom()} | <c>undefined</c> is specified (this is the default), the process will never go into hibernation. </item> + + <tag>{user_lookup_fun, {Lookupfun :: fun(), UserState :: term()}}</tag> + <item> + <p>The lookup fun should be defined as:</p> + <code> +fun(psk, PSKIdentity, UserState :: term()) -> + {ok, SharedSecret :: binary()} | error; +fun(srp, Username, UserState :: term()) -> + {ok, {SRPParams :: srp_param_type(), Salt :: binary(), UserPassHash :: binary()}} | error. + </code> + + <p>For PSK cipher suites, the lookup fun will be called in the client and server the find + the shared secret. On the client, PSKIdentity will be set to hint presented by the server + or undefined. On the server, PSKIdentity is the identity presented by the client. + For SRP cipher suites, the fun will only be used by the server to find the SRP values. + </p> + + <p>For SRP, the required values on a server will usually be precalculated and kept in a passwd + like file. A sample SRP lookup fun that calculates the values on the fly for a single user entry + with a static password could be:</p> + <code><![CDATA[ +user_lookup(srp, Username, _UserState) -> + Salt = ssl:random_bytes(16), + UserPassHash = crypto:sha([Salt, crypto:sha([Username, <<$:>>, <<"secret">>])]), + {ok, {srp_1024, Salt, UserPassHash}}. + ]]></code> + + </item> + </taglist> </section> @@ -334,6 +368,14 @@ fun(OtpCert :: #'OTPCertificate'{}, Event :: {bad_cert, Reason :: atom()} | server does not support Next Protocol Negotiation the connection will be aborted if no default protocol is supplied.</p> </item> + + <tag>{psk_identity, string()}</tag> + <item>Specifies the identity the client presents to the server. The matching secret is + found by calling the user_look_fun. + </item> + <tag>{srp_identity, {Username :: string(), Password :: string()}</tag> + <item>Specifies the Username and Password to use to authenticate to the server. + </item> </taglist> </section> @@ -396,6 +438,10 @@ fun(OtpCert :: #'OTPCertificate'{}, Event :: {bad_cert, Reason :: atom()} | using <c>negotiated_next_protocol/1</c> method. </item> + <tag>{psk_identity, string()}</tag> + <item>Specifies the server identity hint the server presents to the client. + </item> + </taglist> </section> |