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In blowfish-ctr mode, increment the counter in the correct order. Thanks to
[u/mdw/putty]
/
sshblowf.c
diff --git
a/sshblowf.c
b/sshblowf.c
index
0ca81eb
..
0f00a77
100644
(file)
--- a/
sshblowf.c
+++ b/
sshblowf.c
@@
-406,8
+406,8
@@
static void blowfish_msb_sdctr(unsigned char *blk, int len,
PUT_32BIT_MSB_FIRST(blk, tmp ^ b[0]);
tmp = GET_32BIT_MSB_FIRST(blk + 4);
PUT_32BIT_MSB_FIRST(blk + 4, tmp ^ b[1]);
PUT_32BIT_MSB_FIRST(blk, tmp ^ b[0]);
tmp = GET_32BIT_MSB_FIRST(blk + 4);
PUT_32BIT_MSB_FIRST(blk + 4, tmp ^ b[1]);
- if ((iv
0 = (iv0
+ 1) & 0xffffffff) == 0)
- iv
1 = (iv1
+ 1) & 0xffffffff;
+ if ((iv
1 = (iv1
+ 1) & 0xffffffff) == 0)
+ iv
0 = (iv0
+ 1) & 0xffffffff;
blk += 8;
len -= 8;
}
blk += 8;
len -= 8;
}