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13 lines
219 B
C
13 lines
219 B
C
#include "fe25519.h"
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int fe25519_iszero_vartime(const fe25519 *x)
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{
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fe25519 t = *x;
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fe25519_freeze(&t);
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if (t.v[0]) return 0;
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if (t.v[1]) return 0;
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if (t.v[2]) return 0;
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if (t.v[3]) return 0;
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return 1;
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}
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