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191 lines
8.3 KiB
191 lines
8.3 KiB
diff -up ./lib/softoken/pkcs11c.c.fips_indicators ./lib/softoken/pkcs11c.c
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--- ./lib/softoken/pkcs11c.c.fips_indicators 2024-06-12 13:38:15.995811284 -0700
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+++ ./lib/softoken/pkcs11c.c 2024-06-12 13:41:30.008188930 -0700
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@@ -453,7 +453,7 @@ sftk_InitGeneric(SFTKSession *session, C
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context->blockSize = 0;
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context->maxLen = 0;
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context->isFIPS = sftk_operationIsFIPS(session->slot, pMechanism,
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- operation, key);
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+ operation, key, 0);
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*contextPtr = context;
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return CKR_OK;
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}
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@@ -4885,7 +4885,7 @@ NSC_GenerateKey(CK_SESSION_HANDLE hSessi
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crv = sftk_handleObject(key, session);
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/* we need to do this check at the end, so we can check the generated
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* key length against fips requirements */
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- key->isFIPS = sftk_operationIsFIPS(slot, pMechanism, CKA_NSS_GENERATE, key);
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+ key->isFIPS = sftk_operationIsFIPS(slot, pMechanism, CKA_NSS_GENERATE, key, 0);
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session->lastOpWasFIPS = key->isFIPS;
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sftk_FreeSession(session);
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if (crv == CKR_OK && sftk_isTrue(key, CKA_SENSITIVE)) {
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@@ -6020,7 +6020,7 @@ NSC_GenerateKeyPair(CK_SESSION_HANDLE hS
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return crv;
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}
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/* we need to do this check at the end to make sure the generated key meets the key length requirements */
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- privateKey->isFIPS = sftk_operationIsFIPS(slot, pMechanism, CKA_NSS_GENERATE_KEY_PAIR, privateKey);
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+ privateKey->isFIPS = sftk_operationIsFIPS(slot, pMechanism, CKA_NSS_GENERATE_KEY_PAIR, privateKey, 0);
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publicKey->isFIPS = privateKey->isFIPS;
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session->lastOpWasFIPS = privateKey->isFIPS;
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sftk_FreeSession(session);
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@@ -7220,6 +7220,10 @@ sftk_HKDF(CK_HKDF_PARAMS_PTR params, CK_
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return CKR_TEMPLATE_INCONSISTENT;
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}
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+ if (!params->bExpand) {
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+ keySize = hashLen;
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+ }
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+
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/* sourceKey is NULL if we are called from the POST, skip the
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* sensitiveCheck */
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if (sourceKey != NULL) {
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@@ -7269,7 +7273,8 @@ sftk_HKDF(CK_HKDF_PARAMS_PTR params, CK_
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mech.pParameter = params;
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mech.ulParameterLen = sizeof(*params);
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key->isFIPS = sftk_operationIsFIPS(saltKey->slot, &mech,
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- CKA_DERIVE, saltKey);
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+ CKA_DERIVE, saltKey,
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+ keySize);
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}
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saltKeySource = saltKey->source;
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saltKey_att = sftk_FindAttribute(saltKey, CKA_VALUE);
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@@ -7336,7 +7341,7 @@ sftk_HKDF(CK_HKDF_PARAMS_PTR params, CK_
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/* HKDF-Expand */
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if (!params->bExpand) {
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okm = prk;
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- keySize = genLen = hashLen;
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+ genLen = hashLen;
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} else {
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/* T(1) = HMAC-Hash(prk, "" | info | 0x01)
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* T(n) = HMAC-Hash(prk, T(n-1) | info | n
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@@ -7583,7 +7588,8 @@ NSC_DeriveKey(CK_SESSION_HANDLE hSession
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return CKR_KEY_HANDLE_INVALID;
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}
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}
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- key->isFIPS = sftk_operationIsFIPS(slot, pMechanism, CKA_DERIVE, sourceKey);
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+ key->isFIPS = sftk_operationIsFIPS(slot, pMechanism, CKA_DERIVE, sourceKey,
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+ keySize);
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switch (mechanism) {
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/* get a public key from a private key. nsslowkey_ConvertToPublickey()
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diff -up ./lib/softoken/pkcs11i.h.fips_indicators ./lib/softoken/pkcs11i.h
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--- ./lib/softoken/pkcs11i.h.fips_indicators 2024-06-12 13:38:15.988811198 -0700
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+++ ./lib/softoken/pkcs11i.h 2024-06-12 13:38:15.996811296 -0700
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@@ -979,7 +979,8 @@ CK_FLAGS sftk_AttributeToFlags(CK_ATTRIB
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/* check the FIPS table to determine if this current operation is allowed by
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* FIPS security policy */
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PRBool sftk_operationIsFIPS(SFTKSlot *slot, CK_MECHANISM *mech,
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- CK_ATTRIBUTE_TYPE op, SFTKObject *source);
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+ CK_ATTRIBUTE_TYPE op, SFTKObject *source,
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+ CK_ULONG targetKeySize);
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/* add validation objects to the slot */
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CK_RV sftk_CreateValidationObjects(SFTKSlot *slot);
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diff -up ./lib/softoken/pkcs11u.c.fips_indicators ./lib/softoken/pkcs11u.c
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--- ./lib/softoken/pkcs11u.c.fips_indicators 2024-06-12 13:38:15.990811223 -0700
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+++ ./lib/softoken/pkcs11u.c 2024-06-12 13:38:15.996811296 -0700
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@@ -2336,7 +2336,7 @@ sftk_quickGetECCCurveOid(SFTKObject *sou
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static CK_ULONG
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sftk_getKeyLength(SFTKObject *source)
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{
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- CK_KEY_TYPE keyType = CK_INVALID_HANDLE;
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+ CK_KEY_TYPE keyType = CKK_INVALID_KEY_TYPE;
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CK_ATTRIBUTE_TYPE keyAttribute;
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CK_ULONG keyLength = 0;
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SFTKAttribute *attribute;
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@@ -2398,13 +2398,29 @@ sftk_getKeyLength(SFTKObject *source)
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return keyLength;
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}
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+PRBool
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+sftk_CheckFIPSHash(CK_MECHANISM_TYPE hash)
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+{
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+ switch (hash) {
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+ case CKM_SHA256:
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+ case CKG_MGF1_SHA256:
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+ case CKM_SHA384:
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+ case CKG_MGF1_SHA384:
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+ case CKM_SHA512:
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+ case CKG_MGF1_SHA512:
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+ return PR_TRUE;
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+ }
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+ return PR_FALSE;
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+}
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+
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/*
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* handle specialized FIPS semantics that are too complicated to
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* handle with just a table. NOTE: this means any additional semantics
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* would have to be coded here before they can be added to the table */
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static PRBool
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sftk_handleSpecial(SFTKSlot *slot, CK_MECHANISM *mech,
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- SFTKFIPSAlgorithmList *mechInfo, SFTKObject *source)
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+ SFTKFIPSAlgorithmList *mechInfo, SFTKObject *source,
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+ CK_ULONG keyLength, CK_ULONG targetKeyLength)
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{
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switch (mechInfo->special) {
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case SFTKFIPSDH: {
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@@ -2464,10 +2480,15 @@ sftk_handleSpecial(SFTKSlot *slot, CK_ME
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if (hashObj == NULL) {
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return PR_FALSE;
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}
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+ /* cap the salt for legacy keys */
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+ if ((keyLength <= 1024) && (pss->sLen > 63)) {
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+ return PR_FALSE;
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+ }
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+ /* cap the salt for based on the hash */
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if (pss->sLen > hashObj->length) {
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return PR_FALSE;
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}
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- return PR_TRUE;
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+ return sftk_CheckFIPSHash(pss->hashAlg);
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}
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case SFTKFIPSPBKDF2: {
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/* PBKDF2 must have the following addition restrictions
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@@ -2492,6 +2513,13 @@ sftk_handleSpecial(SFTKSlot *slot, CK_ME
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}
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return PR_TRUE;
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}
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+ /* check the hash mechanisms to make sure they themselves are FIPS */
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+ case SFTKFIPSChkHash:
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+ if (mech->ulParameterLen < mechInfo->offset +sizeof(CK_ULONG)) {
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+ return PR_FALSE;
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+ }
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+ return sftk_CheckFIPSHash(*(CK_ULONG *)(((char *)mech->pParameter)
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+ + mechInfo->offset));
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default:
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break;
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}
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@@ -2502,7 +2530,7 @@ sftk_handleSpecial(SFTKSlot *slot, CK_ME
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PRBool
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sftk_operationIsFIPS(SFTKSlot *slot, CK_MECHANISM *mech, CK_ATTRIBUTE_TYPE op,
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- SFTKObject *source)
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+ SFTKObject *source, CK_ULONG targetKeyLength)
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{
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#ifndef NSS_HAS_FIPS_INDICATORS
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return PR_FALSE;
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@@ -2534,13 +2562,17 @@ sftk_operationIsFIPS(SFTKSlot *slot, CK_
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SFTKFIPSAlgorithmList *mechs = &sftk_fips_mechs[i];
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/* if we match the number of records exactly, then we are an
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* approved algorithm in the approved mode with an approved key */
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- if (((mech->mechanism == mechs->type) &&
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- (opFlags == (mechs->info.flags & opFlags)) &&
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- (keyLength <= mechs->info.ulMaxKeySize) &&
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- (keyLength >= mechs->info.ulMinKeySize) &&
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- ((keyLength - mechs->info.ulMinKeySize) % mechs->step) == 0) &&
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+ if ((mech->mechanism == mechs->type) &&
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+ (opFlags == (mechs->info.flags & opFlags)) &&
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+ (keyLength <= mechs->info.ulMaxKeySize) &&
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+ (keyLength >= mechs->info.ulMinKeySize) &&
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+ (((keyLength - mechs->info.ulMinKeySize) % mechs->step) == 0) &&
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+ ((targetKeyLength == 0) ||
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+ ((targetKeyLength <= mechs->info.ulMaxKeySize) &&
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+ (targetKeyLength >= mechs->info.ulMinKeySize) &&
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+ ((targetKeyLength - mechs->info.ulMinKeySize) % mechs->step) == 0)) &&
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((mechs->special == SFTKFIPSNone) ||
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- sftk_handleSpecial(slot, mech, mechs, source))) {
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+ sftk_handleSpecial(slot, mech, mechs, source, keyLength, targetKeyLength))) {
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return PR_TRUE;
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}
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}
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