module Samba::Encrypt::Private
Constants
- LM_MAGIC
Public Instance Methods
convert_encoding(to, from, str)
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# File lib/samba/encrypt.rb, line 32 def convert_encoding(to, from, str) if same_encoding?(to, from) str else require 'iconv' Iconv.iconv(to, from, str).join end end
des_crypt56(input, key_str, forward_only)
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# File lib/samba/encrypt.rb, line 69 def des_crypt56(input, key_str, forward_only) key = str_to_key(key_str) encoder = OpenSSL::Cipher::DES.new encoder.encrypt encoder.key = key encoder.update(input) end
encrypt_14characters(chars)
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# File lib/samba/encrypt.rb, line 78 def encrypt_14characters(chars) raise ArgumentError.new("must be <= 14 characters") if chars.size > 14 chars = chars.to_s.ljust(14, "\000") des_crypt56(LM_MAGIC, chars[0, 7], true) + des_crypt56(LM_MAGIC, chars[7, 7], true) end
normalize_encoding(encoding)
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# File lib/samba/encrypt.rb, line 41 def normalize_encoding(encoding) encoding.downcase.gsub(/-/, "_") end
same_encoding?(a, b)
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# File lib/samba/encrypt.rb, line 45 def same_encoding?(a, b) na = normalize_encoding(a) nb = normalize_encoding(b) na == nb or na.gsub(/_/, '') == nb.gsub(/_/, '') end
str_to_key(str)
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# File lib/samba/encrypt.rb, line 51 def str_to_key(str) key = "\000" * 8 key[0] = str[0] >> 1; key[1] = ((str[0] & 0x01) << 6) | (str[1] >> 2); key[2] = ((str[1] & 0x03) << 5) | (str[2] >> 3); key[3] = ((str[2] & 0x07) << 4) | (str[3] >> 4); key[4] = ((str[3] & 0x0F) << 3) | (str[4] >> 5); key[5] = ((str[4] & 0x1F) << 2) | (str[5] >> 6); key[6] = ((str[5] & 0x3F) << 1) | (str[6] >> 7); key[7] = str[6] & 0x7F; key.size.times do |i| key[i] = (key[i] << 1); end key end