Mercurial > dropbear
diff bn_mp_prime_random_ex.c @ 190:d8254fc979e9 libtommath-orig LTM_0.35
Initial import of libtommath 0.35
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Fri, 06 May 2005 08:59:30 +0000 |
| parents | d29b64170cf0 |
| children |
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--- a/bn_mp_prime_random_ex.c Sun Dec 19 11:33:56 2004 +0000 +++ b/bn_mp_prime_random_ex.c Fri May 06 08:59:30 2005 +0000 @@ -47,7 +47,7 @@ } /* calc the byte size */ - bsize = (size>>3)+(size&7?1:0); + bsize = (size>>3) + ((size&7)?1:0); /* we need a buffer of bsize bytes */ tmp = OPT_CAST(unsigned char) XMALLOC(bsize); @@ -56,19 +56,19 @@ } /* calc the maskAND value for the MSbyte*/ - maskAND = 0xFF >> (8 - (size & 7)); + maskAND = ((size&7) == 0) ? 0xFF : (0xFF >> (8 - (size & 7))); /* calc the maskOR_msb */ maskOR_msb = 0; - maskOR_msb_offset = (size - 2) >> 3; + maskOR_msb_offset = ((size & 7) == 1) ? 1 : 0; if (flags & LTM_PRIME_2MSB_ON) { maskOR_msb |= 1 << ((size - 2) & 7); } else if (flags & LTM_PRIME_2MSB_OFF) { maskAND &= ~(1 << ((size - 2) & 7)); - } + } /* get the maskOR_lsb */ - maskOR_lsb = 0; + maskOR_lsb = 1; if (flags & LTM_PRIME_BBS) { maskOR_lsb |= 3; }