Docs, code cleanup, and protect the extra new fields of HELLO with encryption as a precaution.
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13 changed files with 163 additions and 116 deletions
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@ -46,7 +46,7 @@ static inline void _computeMemoryHardHash(const void *publicKey,unsigned int pub
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// but is not what we want for sequential memory-harndess.
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memset(genmem,0,ZT_IDENTITY_GEN_MEMORY);
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Salsa20 s20(digest,256,(char *)digest + 32);
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s20.encrypt20((char *)genmem,(char *)genmem,64);
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s20.crypt20((char *)genmem,(char *)genmem,64);
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for(unsigned long i=64;i<ZT_IDENTITY_GEN_MEMORY;i+=64) {
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unsigned long k = i - 64;
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*((uint64_t *)((char *)genmem + i)) = *((uint64_t *)((char *)genmem + k));
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@ -57,7 +57,7 @@ static inline void _computeMemoryHardHash(const void *publicKey,unsigned int pub
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*((uint64_t *)((char *)genmem + i + 40)) = *((uint64_t *)((char *)genmem + k + 40));
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*((uint64_t *)((char *)genmem + i + 48)) = *((uint64_t *)((char *)genmem + k + 48));
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*((uint64_t *)((char *)genmem + i + 56)) = *((uint64_t *)((char *)genmem + k + 56));
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s20.encrypt20((char *)genmem + i,(char *)genmem + i,64);
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s20.crypt20((char *)genmem + i,(char *)genmem + i,64);
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}
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// Render final digest using genmem as a lookup table
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@ -67,7 +67,7 @@ static inline void _computeMemoryHardHash(const void *publicKey,unsigned int pub
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uint64_t tmp = ((uint64_t *)genmem)[idx2];
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((uint64_t *)genmem)[idx2] = ((uint64_t *)digest)[idx1];
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((uint64_t *)digest)[idx1] = tmp;
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s20.encrypt20(digest,digest,64);
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s20.crypt20(digest,digest,64);
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}
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}
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