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Diffstat (limited to 'crypto/openssl/doc/ssl/SSL_COMP_add_compression_method.pod')
-rw-r--r-- | crypto/openssl/doc/ssl/SSL_COMP_add_compression_method.pod | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/crypto/openssl/doc/ssl/SSL_COMP_add_compression_method.pod b/crypto/openssl/doc/ssl/SSL_COMP_add_compression_method.pod deleted file mode 100644 index 42fa66b..0000000 --- a/crypto/openssl/doc/ssl/SSL_COMP_add_compression_method.pod +++ /dev/null @@ -1,70 +0,0 @@ -=pod - -=head1 NAME - -SSL_COMP_add_compression_method - handle SSL/TLS integrated compression methods - -=head1 SYNOPSIS - - #include <openssl/ssl.h> - - int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm); - -=head1 DESCRIPTION - -SSL_COMP_add_compression_method() adds the compression method B<cm> with -the identifier B<id> to the list of available compression methods. This -list is globally maintained for all SSL operations within this application. -It cannot be set for specific SSL_CTX or SSL objects. - -=head1 NOTES - -The TLS standard (or SSLv3) allows the integration of compression methods -into the communication. The TLS RFC does however not specify compression -methods or their corresponding identifiers, so there is currently no compatible -way to integrate compression with unknown peers. It is therefore currently not -recommended to integrate compression into applications. Applications for -non-public use may agree on certain compression methods. Using different -compression methods with the same identifier will lead to connection failure. - -An OpenSSL client speaking a protocol that allows compression (SSLv3, TLSv1) -will unconditionally send the list of all compression methods enabled with -SSL_COMP_add_compression_method() to the server during the handshake. -Unlike the mechanisms to set a cipher list, there is no method available to -restrict the list of compression method on a per connection basis. - -An OpenSSL server will match the identifiers listed by a client against -its own compression methods and will unconditionally activate compression -when a matching identifier is found. There is no way to restrict the list -of compression methods supported on a per connection basis. - -The OpenSSL library has the compression methods B<COMP_rle()> and (when -especially enabled during compilation) B<COMP_zlib()> available. - -=head1 WARNINGS - -Once the identities of the compression methods for the TLS protocol have -been standardized, the compression API will most likely be changed. Using -it in the current state is not recommended. - -=head1 RETURN VALUES - -SSL_COMP_add_compression_method() may return the following values: - -=over 4 - -=item 0 - -The operation succeeded. - -=item 1 - -The operation failed. Check the error queue to find out the reason. - -=back - -=head1 SEE ALSO - -L<ssl(3)|ssl(3)> - -=cut |