crypto: tcrypt - Avoid using contiguous pages
If tcrypt is to be used as a run-time integrity test, it needs to be
more resilient in a hostile environment. For a start allocating 32K
of physically contiguous memory is definitely out.
This patch teaches it to use separate pages instead.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/tcrypt.h b/crypto/tcrypt.h
index 801e0c2..c6254a1 100644
--- a/crypto/tcrypt.h
+++ b/crypto/tcrypt.h
@@ -39,7 +39,7 @@
char *iv;
char *input;
char *result;
- unsigned char tap[MAX_TAP];
+ unsigned short tap[MAX_TAP];
int np;
unsigned char fail;
unsigned char wk; /* weak key flag */
@@ -5111,6 +5111,8 @@
"\x4b\xef\x31\x18\xea\xac\xb1\x84"
"\x21\xed\xda\x86",
.rlen = 4100,
+ .np = 2,
+ .tap = { 4064, 36 },
},
};
@@ -8126,7 +8128,9 @@
"\xfc\x3f\x09\x7a\x0b\xdc\xc5\x1b"
"\x87\x13\xc6\x5b\x59\x8d\xf2\xc8"
"\xaf\xdf\x11\x95",
- .rlen = 4100,
+ .rlen = 4100,
+ .np = 2,
+ .tap = { 4064, 36 },
},
};