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wolfCrypt as crypto backend for VeraCrypt (#1227)

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* wolfCrypt as crypto backend for VeraCrypt

* Refactor to use EncryptionModeWolfCryptXTS class
This commit is contained in:
lealem47
2023-11-12 16:51:31 -07:00
committed by GitHub
parent 458be85f84
commit 9247ce1bb9
36 changed files with 1104 additions and 220 deletions
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45
src/Common/Random.c
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@@ -262,19 +262,17 @@ BOOL Randmix ()
if (bRandmixEnabled)
{
unsigned char hashOutputBuffer [MAX_DIGESTSIZE];
WHIRLPOOL_CTX wctx;
blake2s_state bctx;
#ifndef WOLFCRYPT_BACKEND
WHIRLPOOL_CTX wctx;
blake2s_state bctx;
STREEBOG_CTX stctx;
#endif
sha512_ctx sctx;
sha256_ctx s256ctx;
STREEBOG_CTX stctx;
int poolIndex, digestIndex, digestSize;
switch (HashFunction)
{
case BLAKE2S:
digestSize = BLAKE2S_DIGESTSIZE;
break;
case SHA512:
digestSize = SHA512_DIGESTSIZE;
break;
@@ -283,6 +281,11 @@ BOOL Randmix ()
digestSize = SHA256_DIGESTSIZE;
break;
#ifndef WOLFCRYPT_BACKEND
case BLAKE2S:
digestSize = BLAKE2S_DIGESTSIZE;
break;
case WHIRLPOOL:
digestSize = WHIRLPOOL_DIGESTSIZE;
break;
@@ -290,7 +293,7 @@ BOOL Randmix ()
case STREEBOG:
digestSize = STREEBOG_DIGESTSIZE;
break;
#endif
default:
TC_THROW_FATAL_EXCEPTION;
}
@@ -303,12 +306,6 @@ BOOL Randmix ()
/* Compute the message digest of the entire pool using the selected hash function. */
switch (HashFunction)
{
case BLAKE2S:
blake2s_init(&bctx);
blake2s_update(&bctx, pRandPool, RNG_POOL_SIZE);
blake2s_final(&bctx, hashOutputBuffer);
break;
case SHA512:
sha512_begin (&sctx);
sha512_hash (pRandPool, RNG_POOL_SIZE, &sctx);
@@ -321,6 +318,13 @@ BOOL Randmix ()
sha256_end (hashOutputBuffer, &s256ctx);
break;
#ifndef WOLFCRYPT_BACKEND
case BLAKE2S:
blake2s_init(&bctx);
blake2s_update(&bctx, pRandPool, RNG_POOL_SIZE);
blake2s_final(&bctx, hashOutputBuffer);
break;
case WHIRLPOOL:
WHIRLPOOL_init (&wctx);
WHIRLPOOL_add (pRandPool, RNG_POOL_SIZE, &wctx);
@@ -332,7 +336,7 @@ BOOL Randmix ()
STREEBOG_add (&stctx, pRandPool, RNG_POOL_SIZE);
STREEBOG_finalize (&stctx, hashOutputBuffer);
break;
#endif
default:
// Unknown/wrong ID
TC_THROW_FATAL_EXCEPTION;
@@ -349,10 +353,6 @@ BOOL Randmix ()
burn (hashOutputBuffer, MAX_DIGESTSIZE);
switch (HashFunction)
{
case BLAKE2S:
burn (&bctx, sizeof(bctx));
break;
case SHA512:
burn (&sctx, sizeof(sctx));
break;
@@ -361,6 +361,11 @@ BOOL Randmix ()
burn (&s256ctx, sizeof(s256ctx));
break;
#ifndef WOLFCRYPT_BACKEND
case BLAKE2S:
burn (&bctx, sizeof(bctx));
break;
case WHIRLPOOL:
burn (&wctx, sizeof(wctx));
break;
@@ -368,7 +373,7 @@ BOOL Randmix ()
case STREEBOG:
burn (&stctx, sizeof(sctx));
break;
#endif
default:
// Unknown/wrong ID
TC_THROW_FATAL_EXCEPTION;