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Generates a cryptographically strong pseudo-random number in the range 0…range.

See also the man page BN_rand_range(3).

Returns the flags on the BN object. The argument is used as a bit mask.

Parameters

• flags - integer

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.

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

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"

Called before each event with line/column information.

Returns the raw error code occurred at name resolution.

Returns event interface name if the method is event.

tobj = WIN32OLE::Type.new('Microsoft Excel 9.0 Object Library', 'Workbook')
method = WIN32OLE::Method.new(tobj, 'SheetActivate')
puts method.event_interface # =>  WorkbookEvents

Returns major version.

tobj = WIN32OLE::Type.new('Microsoft Word 10.0 Object Library', 'Documents')
puts tobj.major_version # => 8

Returns minor version.

tobj = WIN32OLE::Type.new('Microsoft Word 10.0 Object Library', 'Documents')
puts tobj.minor_version # => 2

Returns the type library major version.

tlib = WIN32OLE::TypeLib.new('Microsoft Excel 9.0 Object Library')
puts tlib.major_version # -> 1

Returns the type library minor version.

tlib = WIN32OLE::TypeLib.new('Microsoft Excel 9.0 Object Library')
puts tlib.minor_version # -> 3