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Returns true if dlclose() will be called when this handle is garbage collected.

See man(3) dlclose() for more info.

Generates and sets the key/IV based on a password.

WARNING: This method is only PKCS5 v1.5 compliant when using RC2, RC4-40, or DES with MD5 or SHA1. Using anything else (like AES) will generate the key/iv using an OpenSSL specific method. This method is deprecated and should no longer be used. Use a PKCS5 v2 key generation method from OpenSSL::PKCS5 instead.

Parameters

• salt must be an 8 byte string if provided.

• iterations is an integer with a default of 2048.

• digest is a Digest object that defaults to ‘MD5’

A minimum of 1000 iterations is recommended.

Returns the size in bytes of the blocks on which this Cipher operates on.

Gets the value of key from the given section

Given the following configurating file being loaded:

config = OpenSSL::Config.load('foo.cnf')
  #=> #<OpenSSL::Config sections=["default"]>
puts config.to_s
  #=> [ default ]
  #   foo=bar

You can get a specific value from the config if you know the section and key like so:

config.get_value('default','foo')
  #=> "bar"

Returns the output size of the digest, i.e. the length in bytes of the final message digest result.

Example

digest = OpenSSL::Digest.new('SHA1')
puts digest.digest_length # => 20

Returns the block length of the digest algorithm, i.e. the length in bytes of an individual block. Most modern algorithms partition a message to be digested into a sequence of fix-sized blocks that are processed consecutively.

Example

digest = OpenSSL::Digest.new('SHA1')
puts digest.block_length # => 64

Called before each event with line/column information.

This method is called when a parse error is found.

ERROR_TOKEN_ID is an internal ID of token which caused error. You can get string representation of this ID by calling token_to_str.

ERROR_VALUE is a value of error token.

value_stack is a stack of symbol values. DO NOT MODIFY this object.

This method raises ParseError by default.

If this method returns, parsers enter “error recovering mode”.

See Zlib::GzipReader documentation for a description.