mirror of
https://github.com/mozilla/gecko-dev.git
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259 lines
8.1 KiB
C++
259 lines
8.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/KeyAlgorithmProxy.h"
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#include "js/StructuredClone.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/dom/StructuredCloneHolder.h"
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#include "mozilla/dom/WebCryptoCommon.h"
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namespace mozilla::dom {
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bool KeyAlgorithmProxy::WriteStructuredClone(
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JSStructuredCloneWriter* aWriter) const {
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if (!StructuredCloneHolder::WriteString(aWriter, mName) ||
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!JS_WriteUint32Pair(aWriter, mType, KEY_ALGORITHM_SC_VERSION)) {
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return false;
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}
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switch (mType) {
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case AES:
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return JS_WriteUint32Pair(aWriter, mAes.mLength, 0);
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case HMAC:
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return JS_WriteUint32Pair(aWriter, mHmac.mLength, 0) &&
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StructuredCloneHolder::WriteString(aWriter, mHmac.mHash.mName);
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case RSA: {
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return JS_WriteUint32Pair(aWriter, mRsa.mModulusLength, 0) &&
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WriteBuffer(aWriter, mRsa.mPublicExponent) &&
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StructuredCloneHolder::WriteString(aWriter, mRsa.mHash.mName);
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}
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case EC:
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return StructuredCloneHolder::WriteString(aWriter, mEc.mNamedCurve);
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}
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return false;
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}
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bool KeyAlgorithmProxy::ReadStructuredClone(JSStructuredCloneReader* aReader) {
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uint32_t type, version, dummy;
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if (!StructuredCloneHolder::ReadString(aReader, mName) ||
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!JS_ReadUint32Pair(aReader, &type, &version)) {
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return false;
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}
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if (version != KEY_ALGORITHM_SC_VERSION) {
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return false;
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}
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switch (type) {
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case AES: {
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mType = AES;
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uint32_t length;
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if (!JS_ReadUint32Pair(aReader, &length, &dummy)) {
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return false;
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}
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mAes.mLength = length;
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mAes.mName = mName;
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return true;
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}
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case HMAC: {
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mType = HMAC;
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if (!JS_ReadUint32Pair(aReader, &mHmac.mLength, &dummy) ||
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!StructuredCloneHolder::ReadString(aReader, mHmac.mHash.mName)) {
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return false;
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}
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mHmac.mName = mName;
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return true;
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}
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case RSA: {
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mType = RSA;
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uint32_t modulusLength;
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nsString hashName;
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if (!JS_ReadUint32Pair(aReader, &modulusLength, &dummy) ||
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!ReadBuffer(aReader, mRsa.mPublicExponent) ||
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!StructuredCloneHolder::ReadString(aReader, mRsa.mHash.mName)) {
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return false;
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}
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mRsa.mModulusLength = modulusLength;
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mRsa.mName = mName;
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return true;
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}
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case EC: {
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mType = EC;
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nsString namedCurve;
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if (!StructuredCloneHolder::ReadString(aReader, mEc.mNamedCurve)) {
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return false;
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}
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mEc.mName = mName;
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return true;
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}
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}
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return false;
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}
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CK_MECHANISM_TYPE
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KeyAlgorithmProxy::Mechanism() const {
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if (mType == HMAC) {
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return GetMechanism(mHmac);
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}
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return MapAlgorithmNameToMechanism(mName);
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}
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nsString KeyAlgorithmProxy::JwkAlg() const {
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if (mName.EqualsLiteral(WEBCRYPTO_ALG_AES_CBC)) {
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switch (mAes.mLength) {
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case 128:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A128CBC);
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case 192:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A192CBC);
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case 256:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A256CBC);
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}
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}
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if (mName.EqualsLiteral(WEBCRYPTO_ALG_AES_CTR)) {
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switch (mAes.mLength) {
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case 128:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A128CTR);
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case 192:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A192CTR);
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case 256:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A256CTR);
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}
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}
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if (mName.EqualsLiteral(WEBCRYPTO_ALG_AES_GCM)) {
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switch (mAes.mLength) {
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case 128:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A128GCM);
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case 192:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A192GCM);
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case 256:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A256GCM);
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}
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}
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if (mName.EqualsLiteral(WEBCRYPTO_ALG_AES_KW)) {
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switch (mAes.mLength) {
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case 128:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A128KW);
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case 192:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A192KW);
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case 256:
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_A256KW);
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}
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}
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if (mName.EqualsLiteral(WEBCRYPTO_ALG_HMAC)) {
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nsString hashName = mHmac.mHash.mName;
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if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA1)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_HS1);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA256)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_HS256);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA384)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_HS384);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA512)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_HS512);
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}
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}
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if (mName.EqualsLiteral(WEBCRYPTO_ALG_RSASSA_PKCS1)) {
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nsString hashName = mRsa.mHash.mName;
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if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA1)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_RS1);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA256)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_RS256);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA384)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_RS384);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA512)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_RS512);
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}
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}
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if (mName.EqualsLiteral(WEBCRYPTO_ALG_RSA_OAEP)) {
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nsString hashName = mRsa.mHash.mName;
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if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA1)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_RSA_OAEP);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA256)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_RSA_OAEP_256);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA384)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_RSA_OAEP_384);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA512)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_RSA_OAEP_512);
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}
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}
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if (mName.EqualsLiteral(WEBCRYPTO_ALG_RSA_PSS)) {
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nsString hashName = mRsa.mHash.mName;
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if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA1)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_PS1);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA256)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_PS256);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA384)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_PS384);
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} else if (hashName.EqualsLiteral(WEBCRYPTO_ALG_SHA512)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_PS512);
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}
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}
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if (mName.EqualsLiteral(WEBCRYPTO_ALG_ECDSA)) {
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nsString curveName = mEc.mNamedCurve;
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if (curveName.EqualsLiteral(WEBCRYPTO_NAMED_CURVE_P256)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_ECDSA_P_256);
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}
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if (curveName.EqualsLiteral(WEBCRYPTO_NAMED_CURVE_P384)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_ECDSA_P_384);
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}
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if (curveName.EqualsLiteral(WEBCRYPTO_NAMED_CURVE_P521)) {
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return NS_LITERAL_STRING_FROM_CSTRING(JWK_ALG_ECDSA_P_521);
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}
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}
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return nsString();
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}
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CK_MECHANISM_TYPE
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KeyAlgorithmProxy::GetMechanism(const KeyAlgorithm& aAlgorithm) {
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// For everything but HMAC, the name determines the mechanism
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// HMAC is handled by the specialization below
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return MapAlgorithmNameToMechanism(aAlgorithm.mName);
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}
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CK_MECHANISM_TYPE
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KeyAlgorithmProxy::GetMechanism(const HmacKeyAlgorithm& aAlgorithm) {
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// The use of HmacKeyAlgorithm doesn't completely prevent this
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// method from being called with dictionaries that don't really
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// represent HMAC key algorithms.
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MOZ_ASSERT(aAlgorithm.mName.EqualsLiteral(WEBCRYPTO_ALG_HMAC));
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CK_MECHANISM_TYPE hashMech;
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hashMech = MapAlgorithmNameToMechanism(aAlgorithm.mHash.mName);
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switch (hashMech) {
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case CKM_SHA_1:
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return CKM_SHA_1_HMAC;
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case CKM_SHA256:
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return CKM_SHA256_HMAC;
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case CKM_SHA384:
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return CKM_SHA384_HMAC;
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case CKM_SHA512:
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return CKM_SHA512_HMAC;
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}
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return UNKNOWN_CK_MECHANISM;
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}
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} // namespace mozilla::dom
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