51 lines
1.7 KiB
Diff
51 lines
1.7 KiB
Diff
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diff --git a/dom/media/webrtc/transport/nricectx.cpp b/dom/media/webrtc/transport/nricectx.cpp
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--- a/dom/media/webrtc/transport/nricectx.cpp
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+++ b/dom/media/webrtc/transport/nricectx.cpp
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@@ -124,23 +124,30 @@
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static int nr_crypto_nss_hmac(UCHAR* key, size_t keyl, UCHAR* buf, size_t bufl,
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UCHAR* result) {
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CK_MECHANISM_TYPE mech = CKM_SHA_1_HMAC;
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PK11SlotInfo* slot = nullptr;
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MOZ_ASSERT(keyl > 0);
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- SECItem keyi = {siBuffer, key, static_cast<unsigned int>(keyl)};
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+ CK_KEY_DERIVATION_STRING_DATA idkey = {key, keyl};
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+ SECItem keyi = {siBuffer, (unsigned char*)&idkey, sizeof(idkey)};
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+ PK11SymKey* tmpKey = nullptr;
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PK11SymKey* skey = nullptr;
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PK11Context* hmac_ctx = nullptr;
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SECStatus status;
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unsigned int hmac_len;
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SECItem param = {siBuffer, nullptr, 0};
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int err = R_INTERNAL;
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slot = PK11_GetInternalKeySlot();
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if (!slot) goto abort;
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- skey = PK11_ImportSymKey(slot, mech, PK11_OriginUnwrap, CKA_SIGN, &keyi,
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- nullptr);
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+ // HMAC is used for hash calculation only so use derive instead of import
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+ // to be FIPS compliant.
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+ tmpKey = PK11_KeyGen(slot, mech, NULL, keyl, nullptr);
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+ if (!tmpKey) goto abort;
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+
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+ skey = PK11_Derive(tmpKey, CKM_CONCATENATE_DATA_AND_BASE, &keyi, mech,
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+ CKA_SIGN, keyl);
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if (!skey) goto abort;
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hmac_ctx = PK11_CreateContextBySymKey(mech, CKA_SIGN, skey, ¶m);
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if (!hmac_ctx) goto abort;
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@@ -157,10 +164,11 @@
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err = 0;
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abort:
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if (hmac_ctx) PK11_DestroyContext(hmac_ctx, PR_TRUE);
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+ if (tmpKey) PK11_FreeSymKey(tmpKey);
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if (skey) PK11_FreeSymKey(skey);
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if (slot) PK11_FreeSlot(slot);
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return err;
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}
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