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Use SipHash-2-4 instead of SipHash-1-3

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Because I wasn't not sure SipHash-1-3 is considered as a secure MAC.
This commit is contained in:
Rui Ueyama 2024-05-11 21:35:33 +09:00
parent 47030cf6ca
commit 08be7ff2d2
1 changed files with 17 additions and 17 deletions
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34
common/siphash.cc
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@ -19,25 +19,25 @@
namespace mold {
#define ROUND \
v0 += v1; \
v1 = std::rotl(v1, 13); \
v1 ^= v0; \
v0 = std::rotl(v0, 32); \
v2 += v3; \
v3 = std::rotl(v3, 16); \
v3 ^= v2; \
v0 += v3; \
v3 = std::rotl(v3, 21); \
v3 ^= v0; \
v2 += v1; \
v1 = std::rotl(v1, 17); \
v1 ^= v2; \
#define ROUND \
v0 += v1; \
v1 = std::rotl(v1, 13); \
v1 ^= v0; \
v0 = std::rotl(v0, 32); \
v2 += v3; \
v3 = std::rotl(v3, 16); \
v3 ^= v2; \
v0 += v3; \
v3 = std::rotl(v3, 21); \
v3 ^= v0; \
v2 += v1; \
v1 = std::rotl(v1, 17); \
v1 ^= v2; \
v2 = std::rotl(v2, 32)
// SipHash-1-3
#define COMPRESS do { ROUND; } while (0)
#define FINALIZE do { ROUND; ROUND; ROUND; } while (0)
// SipHash-2-4
#define COMPRESS do { ROUND; ROUND; } while (0)
#define FINALIZE do { ROUND; ROUND; ROUND; ROUND; } while (0)
SipHash::SipHash(u8 *key) {
u64 k0 = *(ul64 *)key;