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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis |
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2 * |
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3 * LibTomCrypt is a library that provides various cryptographic |
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4 * algorithms in a highly modular and flexible manner. |
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5 * |
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6 * The library is free for all purposes without any express |
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7 * guarantee it works. |
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8 * |
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9 * Tom St Denis, [email protected], http://libtomcrypt.org |
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10 */ |
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11 |
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12 /* OCB Implementation by Tom St Denis */ |
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13 #include "mycrypt.h" |
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14 |
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15 #ifdef OCB_MODE |
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16 |
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17 int ocb_ntz(unsigned long x) |
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18 { |
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19 int c; |
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20 x &= 0xFFFFFFFFUL; |
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21 c = 0; |
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22 while ((x & 1) == 0) { |
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23 ++c; |
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24 x >>= 1; |
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25 } |
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26 return c; |
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27 } |
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28 |
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29 #endif |
