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-rw-r--r--src/common/container.h21
1 files changed, 11 insertions, 10 deletions
diff --git a/src/common/container.h b/src/common/container.h
index d6c80b808..93f0b7114 100644
--- a/src/common/container.h
+++ b/src/common/container.h
@@ -7,6 +7,7 @@
#define TOR_CONTAINER_H
#include "util.h"
+#include "siphash.h"
/** A resizeable list of pointers, with associated helpful functionality.
*
@@ -620,11 +621,11 @@ typedef struct {
static INLINE void
digestset_add(digestset_t *set, const char *digest)
{
- const uint32_t *p = (const uint32_t *)digest;
- const uint32_t d1 = p[0] + (p[1]>>16);
- const uint32_t d2 = p[1] + (p[2]>>16);
- const uint32_t d3 = p[2] + (p[3]>>16);
- const uint32_t d4 = p[3] + (p[0]>>16);
+ const uint64_t x = siphash24g(digest, 20);
+ const uint32_t d1 = (uint32_t) x;
+ const uint32_t d2 = (uint32_t)( (x>>16) + x);
+ const uint32_t d3 = (uint32_t)( (x>>32) + x);
+ const uint32_t d4 = (uint32_t)( (x>>48) + x);
bitarray_set(set->ba, BIT(d1));
bitarray_set(set->ba, BIT(d2));
bitarray_set(set->ba, BIT(d3));
@@ -636,11 +637,11 @@ digestset_add(digestset_t *set, const char *digest)
static INLINE int
digestset_contains(const digestset_t *set, const char *digest)
{
- const uint32_t *p = (const uint32_t *)digest;
- const uint32_t d1 = p[0] + (p[1]>>16);
- const uint32_t d2 = p[1] + (p[2]>>16);
- const uint32_t d3 = p[2] + (p[3]>>16);
- const uint32_t d4 = p[3] + (p[0]>>16);
+ const uint64_t x = siphash24g(digest, 20);
+ const uint32_t d1 = (uint32_t) x;
+ const uint32_t d2 = (uint32_t)( (x>>16) + x);
+ const uint32_t d3 = (uint32_t)( (x>>32) + x);
+ const uint32_t d4 = (uint32_t)( (x>>48) + x);
return bitarray_is_set(set->ba, BIT(d1)) &&
bitarray_is_set(set->ba, BIT(d2)) &&
bitarray_is_set(set->ba, BIT(d3)) &&