constant_time_lt
return (unsigned char)(constant_time_lt(a, b));
return ~constant_time_lt(a, b);
static inline unsigned int constant_time_lt(unsigned int a, unsigned int b);
quotient += 1 & constant_time_lt(kHalfPrime, remainder);
quotient += 1 & constant_time_lt(kPrime + kHalfPrime, remainder);
tlen = constant_time_select_int(constant_time_lt(dblen - mdlen - 1, tlen),
j &= constant_time_lt(j, md_size);
rotate_offset &= constant_time_lt(rotate_offset, md_size);
rotate_offset &= constant_time_lt(rotate_offset, md_size);
rotate_offset &= constant_time_lt(rotate_offset, md_size);