2011-03-18 02:51:52 +01:00
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# -*- ruby encoding: utf-8 -*-
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2010-04-19 07:52:57 +02:00
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##
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# BER extensions to the Bignum class.
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2010-03-20 05:18:10 +01:00
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module Net::BER::Extensions::Bignum
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##
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# Converts a Bignum to an uncompressed BER integer.
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def to_ber
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result = []
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# NOTE: Array#pack's 'w' is a BER _compressed_ integer. We need
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# uncompressed BER integers, so we're not using that. See also:
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# http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/228864
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n = self
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while n > 0
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b = n & 0xff
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result << b
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n = n >> 8
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end
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"\002" + ([result.size] + result.reverse).pack('C*')
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end
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end
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