126 lines
7.0 KiB
Factor
126 lines
7.0 KiB
Factor
IN: io.sockets.secure
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USING: help.markup help.syntax calendar quotations io.sockets ;
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HELP: secure-socket-timeout
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{ $var-description "Timeout for operations not associated with a constructed port instance, such as SSL handshake and shutdown. Represented as a " { $link duration } "." } ;
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HELP: SSLv2
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{ $description "Possible value for the " { $snippet "method" } " slot of a " { $link secure-config } "."
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$nl
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"Note that the SSLv2 protocol is vulnerable to truncation attacks and its use is discouraged (" { $url "http://www.gnu.org/software/gnutls/manual/html_node/On-SSL-2-and-older-protocols.html" } ")." } ;
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HELP: SSLv3
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{ $description "Possible value for the " { $snippet "method" } " slot of a " { $link secure-config } "."
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$nl
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"SSLv3 is widely used, however it is being supersceded by TLSv1." } ;
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HELP: SSLv23
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{ $description "Possible value for the " { $snippet "method" } " slot of a " { $link secure-config } "."
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$nl
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"This value indicates that either SSLv2 or SSLv3 is acceptable." } ;
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HELP: TLSv1
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{ $description "Possible value for the " { $snippet "method" } " slot of a " { $link secure-config } "."
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$nl
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"TLSv1 is the newest protocol for secure socket communications." } ;
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ARTICLE: "ssl-methods" "SSL/TLS methods"
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"The " { $snippet "method" } " slot of a " { $link secure-config } " can be set to one of the following values:"
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{ $subsection SSLv2 }
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{ $subsection SSLv23 }
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{ $subsection SSLv3 }
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{ $subsection TLSv1 }
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"The default value is " { $link SSLv23 } "." ;
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HELP: secure-config
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{ $class-description "Instances represent secure socket configurations." } ;
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HELP: <secure-config>
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{ $values { "config" secure-config } }
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{ $description "Creates a new secure socket configration with default values." } ;
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ARTICLE: "ssl-key-file" "The key file and password"
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"The " { $snippet "key-file" } " and " { $snippet "password" } " slots of a " { $link secure-config } " can be set to a private key file in PEM format. These slots are required for secure servers, and also for clients when client-side authentication is used." ;
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ARTICLE: "ssl-ca-file" "The CA file and path"
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"The " { $snippet "ca-file" } " slot of a " { $link secure-config } " can contain the path of a file with a list of trusted certificates in PEM format. The " { $snippet "ca-path" } " slot can contain the path of a directory of trusted certifications."
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$nl
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"One of these slots are required to be specified so that secure client sockets can verify server certificates."
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$nl
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"See " { $url "http://www.openssl.org/docs/ssl/SSL_CTX_load_verify_locations.html" } " for details." ;
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ARTICLE: "ssl-dh-file" "Diffie-Hellman parameter file"
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"The " { $snippet "dh-file" } " slot of a " { $link secure-config } " can contain the path of a file with Diffie-Hellman key exchange parameters."
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$nl
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"This slot is required for secure server sockets." ;
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ARTICLE: "ssl-ephemeral-rsa" "Ephemeral RSA key bits"
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"The " { $snippet "ephemeral-key-bits" } " slot of a " { $link secure-config } " contains the length of the empheral RSA key, in bits."
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$nl
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"The default value is 1024, and anything less than that is considered insecure. This slot is required for secure server sockets." ;
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ARTICLE: "ssl-config" "Secure socket configuration"
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"Secure sockets require some configuration, particularly for server sockets. A class represents secure socket configuration parameters:"
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{ $subsection secure-config }
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"Creating new instances:"
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{ $subsection <secure-config> }
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"Configuration parameters:"
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{ $subsection "ssl-methods" }
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{ $subsection "ssl-key-file" }
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{ $subsection "ssl-ca-file" }
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{ $subsection "ssl-dh-file" }
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{ $subsection "ssl-ephemeral-rsa" } ;
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HELP: <secure-context>
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{ $values { "config" secure-config } { "context" secure-context } }
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{ $description "Creates a new " { $link secure-context } ". This word should not usually be called directly, use " { $link with-secure-context } " instead." } ;
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HELP: with-secure-context
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{ $values { "config" secure-config } { "quot" quotation } }
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{ $description "Calls the quotation in a new dynamic scope where a " { $link secure-context } " constructed from the specified configuration is available." } ;
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ARTICLE: "ssl-contexts" "Secure socket contexts"
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"All secure socket operations must be performed in a secure socket context. A context is created from a secure socket configuration. An implicit context with the default configuration is always available, however server sockets require a certificate to be set together with other parameters, and the default configuration is insufficient, so a context must be explicitly created in that case."
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{ $subsection with-secure-context } ;
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HELP: secure
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{ $class-description "The class of secure socket addresses." } ;
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HELP: <secure> ( addrspec -- secure )
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{ $values { "addrspec" "an address specifier" } { "secure" secure } }
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{ $description "Creates a new secure socket address, which can then be passed to " { $link <client> } " or " { $link <server> } "." } ;
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ARTICLE: "ssl-addresses" "Secure socket addresses"
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"Secure socket connections are established by passing a secure socket address to " { $link <client> } " or " { $link <server> } "."
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$nl
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"Secure socket addresses form a class:"
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{ $subsection secure }
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"Constructing secure socket addresses:"
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{ $subsection <secure> }
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"Instances of this class can wrap an " { $link inet } ", " { $link inet4 } " or an " { $link inet6 } ", although note that certificate validation is only performed for instances of " { $link inet } " since otherwise the host name is not available." ;
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HELP: premature-close
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{ $error-description "Thrown if an SSL connection is closed without the proper " { $snippet "close_notify" } " sequence. This error is never reported for " { $link SSLv2 } " connections because there is no distinction between expected and unexpected connection closure in that case." } ;
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HELP: certificate-verify-error
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{ $error-description "Thrown if certificate verification failed. The " { $snippet "result" } " slot contains an object identifying the low-level error that occurred." } ;
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HELP: common-name-verify-error
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{ $error-description "Thrown during certificate verification if the host name on the certificate does not match the host name the socket was connected to. This indicates a potential man-in-the-middle attack. The " { $snippet "expected" } " and " { $snippet "got" } " slots contain the mismatched host names." } ;
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ARTICLE: "ssl-errors" "Secure socket errors"
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"Secure sockets can throw one of several errors in addition to the usual I/O errors:"
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{ $subsection premature-close }
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{ $subsection certificate-verify-error }
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{ $subsection common-name-verify-error } ;
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ARTICLE: "io.sockets.secure" "Secure sockets (SSL, TLS)"
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"The " { $vocab-link "io.sockets.secure" } " vocabulary implements secure, encrypted sockets using the OpenSSL library."
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{ $subsection "ssl-config" }
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{ $subsection "ssl-contexts" }
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{ $subsection "ssl-addresses" }
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{ $subsection "ssl-errors" }
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"This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit (" { $url "http://www.openssl.org/" } "), cryptographic software written by Eric Young (eay@cryptsoft.com) and software written by Tim Hudson (tjh@cryptsoft.com)." ;
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ABOUT: "io.sockets.secure"
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