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<a accesskey="1" href="page.php?w=Trivium_(cipher)&amp;p=4">1.Previous</a><br />
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<p>as  <a href="page.php?w=bit">bit</a>s, with "+" being <a href="page.php?w=Exclusive_or">XOR</a> and "o" being <a href="page.php?w=Binary_and">AND</a>.</p>

<p>
*a<sub>i</sub> = c<sub>i-66</sub> + c<sub>i-111</sub> + c<sub>i-110</sub> o c<sub>i-109</sub> + a<sub>i-69</sub><br/>
*b<sub>i</sub> = a<sub>i-66</sub> + a<sub>i-93</sub> + a<sub>i-92</sub> o a<sub>i-91</sub> + b<sub>i-78</sub><br/>
*c<sub>i</sub> = b<sub>i-69</sub> + b<sub>i-84</sub> + b<sub>i-83</sub> o b<sub>i-82</sub> + c<sub>i-87</sub></p>

<p>The output bits r<sub>0</sub> ... r<sub>2<sup>64</sup>-1</sub></p><p>
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