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require 'digest/crc'
module Digest
#
# Implements the CRC1 algorithm.
#
class CRC1 < CRC
TABLE = []
CRC_MASK = 0x00
#
# Packs the CRC1 checksum.
#
# @return [String]
# The CRC1 checksum.
#
def self.pack(crc)
[crc].pack('c*')
end
#
# Updates the CRC1 checksum.
#
# @param [String] data
# The data to update the checksum with.
#
def update(data)
accum = 0
data.each_byte { |b| accum += b }
@crc += (accum % 256)
return self
end
end
end
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