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Fix kmac and kenc computation.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-03-30 23:59:06 +02:00
parent 7aca7b323a
commit 7aee18110e
1 changed files with 2 additions and 2 deletions
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4
src/hsm/dkek.c
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@@ -97,7 +97,7 @@ int dkek_kenc(uint8_t *kenc) { //kenc 32 bytes
return r; return r;
memcpy(buf, dkek+IV_SIZE, 32); memcpy(buf, dkek+IV_SIZE, 32);
release_dkek(); release_dkek();
memcpy(buf, "\x0\x0\x0\x1", 4); memcpy(buf+32, "\x0\x0\x0\x1", 4);
hash256(buf, sizeof(buf), kenc); hash256(buf, sizeof(buf), kenc);
memset(buf, 0, sizeof(buf)); memset(buf, 0, sizeof(buf));
return HSM_OK; return HSM_OK;
@@ -110,7 +110,7 @@ int dkek_kmac(uint8_t *kmac) { //kmac 32 bytes
return r; return r;
memcpy(buf, dkek+IV_SIZE, 32); memcpy(buf, dkek+IV_SIZE, 32);
release_dkek(); release_dkek();
memcpy(buf, "\x0\x0\x0\x2", 4); memcpy(buf+32, "\x0\x0\x0\x2", 4);
hash256(buf, sizeof(buf), kmac); hash256(buf, sizeof(buf), kmac);
memset(buf, 0, sizeof(buf)); memset(buf, 0, sizeof(buf));
return HSM_OK; return HSM_OK;