nss/SOURCES/nss-leading-zero.patch

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2019-11-05 20:19:29 +00:00
# HG changeset patch
# User Kevin Jacobs <kjacobs@mozilla.com>
# Date 1560499074 0
# Fri Jun 14 07:57:54 2019 +0000
# Branch NSS_3_44_BRANCH
# Node ID 876bca2723a1f969422edc93e7504420d8331d3c
# Parent 20671f860c2619dc27208d64a84a759fdffc5ed1
Bug 1540541 - Don't unnecessarily strip leading 0's from key material during PKCS11 import. r=jcj,mt
Differential Revision: https://phabricator.services.mozilla.com/D31671
diff --git a/lib/freebl/ecl/ecp_25519.c b/lib/freebl/ecl/ecp_25519.c
--- a/lib/freebl/ecl/ecp_25519.c
+++ b/lib/freebl/ecl/ecp_25519.c
@@ -114,6 +114,9 @@ ec_Curve25519_pt_mul(SECItem *X, SECItem
}
px = P->data;
}
+ if (k->len != 32) {
+ return SECFailure;
+ }
SECStatus rv = ec_Curve25519_mul(X->data, k->data, px);
if (NSS_SecureMemcmpZero(X->data, X->len) == 0) {
diff --git a/lib/pk11wrap/pk11akey.c b/lib/pk11wrap/pk11akey.c
--- a/lib/pk11wrap/pk11akey.c
+++ b/lib/pk11wrap/pk11akey.c
@@ -190,7 +190,6 @@ PK11_ImportPublicKey(PK11SlotInfo *slot,
attrs++;
PK11_SETATTRS(attrs, CKA_DERIVE, &cktrue, sizeof(CK_BBOOL));
attrs++;
- signedattr = attrs;
PK11_SETATTRS(attrs, CKA_EC_PARAMS,
pubKey->u.ec.DEREncodedParams.data,
pubKey->u.ec.DEREncodedParams.len);
@@ -222,12 +221,14 @@ PK11_ImportPublicKey(PK11SlotInfo *slot,
PORT_SetError(SEC_ERROR_BAD_KEY);
return CK_INVALID_HANDLE;
}
-
templateCount = attrs - theTemplate;
- signedcount = attrs - signedattr;
PORT_Assert(templateCount <= (sizeof(theTemplate) / sizeof(CK_ATTRIBUTE)));
- for (attrs = signedattr; signedcount; attrs++, signedcount--) {
- pk11_SignedToUnsigned(attrs);
+ if (pubKey->keyType != ecKey) {
+ PORT_Assert(signedattr);
+ signedcount = attrs - signedattr;
+ for (attrs = signedattr; signedcount; attrs++, signedcount--) {
+ pk11_SignedToUnsigned(attrs);
+ }
}
rv = PK11_CreateNewObject(slot, CK_INVALID_SESSION, theTemplate,
templateCount, isToken, &objectID);
@@ -1074,9 +1075,13 @@ pk11_loadPrivKeyWithFlags(PK11SlotInfo *
&cktrue, &ckfalse);
/* Not everyone can handle zero padded key values, give
- * them the raw data as unsigned */
- for (ap = attrs; extra_count; ap++, extra_count--) {
- pk11_SignedToUnsigned(ap);
+ * them the raw data as unsigned. The exception is EC,
+ * where the values are encoded or zero-preserving
+ * per-RFC5915 */
+ if (privKey->keyType != ecKey) {
+ for (ap = attrs; extra_count; ap++, extra_count--) {
+ pk11_SignedToUnsigned(ap);
+ }
}
/* now Store the puppies */
diff --git a/lib/pk11wrap/pk11cert.c b/lib/pk11wrap/pk11cert.c
--- a/lib/pk11wrap/pk11cert.c
+++ b/lib/pk11wrap/pk11cert.c
@@ -184,7 +184,9 @@ PK11_IsUserCert(PK11SlotInfo *slot, CERT
SECKEY_DestroyPublicKey(pubKey);
return PR_FALSE;
}
- pk11_SignedToUnsigned(&theTemplate);
+ if (pubKey->keyType != ecKey) {
+ pk11_SignedToUnsigned(&theTemplate);
+ }
if (pk11_FindObjectByTemplate(slot, &theTemplate, 1) != CK_INVALID_HANDLE) {
SECKEY_DestroyPublicKey(pubKey);
return PR_TRUE;
diff --git a/lib/pk11wrap/pk11pk12.c b/lib/pk11wrap/pk11pk12.c
--- a/lib/pk11wrap/pk11pk12.c
+++ b/lib/pk11wrap/pk11pk12.c
@@ -505,7 +505,7 @@ PK11_ImportAndReturnPrivateKey(PK11SlotI
}
PK11_SETATTRS(attrs, CKA_ID, ck_id->data, ck_id->len);
attrs++;
- signedattr = attrs;
+ /* No signed attrs for EC */
/* curveOID always is a copy of AlgorithmID.parameters. */
PK11_SETATTRS(attrs, CKA_EC_PARAMS, lpk->u.ec.curveOID.data,
lpk->u.ec.curveOID.len);
@@ -523,11 +523,12 @@ PK11_ImportAndReturnPrivateKey(PK11SlotI
}
templateCount = attrs - theTemplate;
PORT_Assert(templateCount <= sizeof(theTemplate) / sizeof(CK_ATTRIBUTE));
- PORT_Assert(signedattr != NULL);
- signedcount = attrs - signedattr;
-
- for (ap = signedattr; signedcount; ap++, signedcount--) {
- pk11_SignedToUnsigned(ap);
+ if (lpk->keyType != ecKey) {
+ PORT_Assert(signedattr);
+ signedcount = attrs - signedattr;
+ for (ap = signedattr; signedcount; ap++, signedcount--) {
+ pk11_SignedToUnsigned(ap);
+ }
}
rv = PK11_CreateNewObject(slot, CK_INVALID_SESSION,
diff --git a/lib/softoken/legacydb/lgattr.c b/lib/softoken/legacydb/lgattr.c
--- a/lib/softoken/legacydb/lgattr.c
+++ b/lib/softoken/legacydb/lgattr.c
@@ -950,9 +950,9 @@ lg_FindECPrivateKeyAttribute(NSSLOWKEYPr
case CKA_UNWRAP:
return LG_CLONE_ATTR(attribute, type, lg_StaticFalseAttr);
case CKA_VALUE:
- return lg_CopyPrivAttrSigned(attribute, type,
- key->u.ec.privateValue.data,
- key->u.ec.privateValue.len, sdbpw);
+ return lg_CopyPrivAttribute(attribute, type,
+ key->u.ec.privateValue.data,
+ key->u.ec.privateValue.len, sdbpw);
case CKA_EC_PARAMS:
return lg_CopyAttributeSigned(attribute, type,
key->u.ec.ecParams.DEREncoding.data,
diff --git a/lib/softoken/pkcs11c.c b/lib/softoken/pkcs11c.c
--- a/lib/softoken/pkcs11c.c
+++ b/lib/softoken/pkcs11c.c
@@ -7747,7 +7747,7 @@ NSC_DeriveKey(CK_SESSION_HANDLE hSession
rv = ECDH_Derive(&ecPoint, &privKey->u.ec.ecParams, &ecScalar,
withCofactor, &tmp);
- PORT_Free(ecScalar.data);
+ PORT_ZFree(ecScalar.data, ecScalar.len);
ecScalar.data = NULL;
if (privKey != sourceKey->objectInfo) {
nsslowkey_DestroyPrivateKey(privKey);