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-rw-r--r--media/java/android/media/MediaDrm.java153
-rw-r--r--media/jni/android_media_MediaDrm.cpp126
-rw-r--r--media/lib/remotedisplay/Android.mk (renamed from media/lib/Android.mk)4
-rw-r--r--media/lib/remotedisplay/README.txt (renamed from media/lib/README.txt)1
-rw-r--r--media/lib/remotedisplay/com.android.media.remotedisplay.xml (renamed from media/lib/com.android.media.remotedisplay.xml)0
-rw-r--r--media/lib/remotedisplay/java/com/android/media/remotedisplay/RemoteDisplay.java (renamed from media/lib/java/com/android/media/remotedisplay/RemoteDisplay.java)0
-rw-r--r--media/lib/remotedisplay/java/com/android/media/remotedisplay/RemoteDisplayProvider.java (renamed from media/lib/java/com/android/media/remotedisplay/RemoteDisplayProvider.java)0
-rw-r--r--media/lib/signer/Android.mk45
-rw-r--r--media/lib/signer/README.txt28
-rw-r--r--media/lib/signer/com.android.mediadrm.signer.xml20
-rw-r--r--media/lib/signer/java/com/android/mediadrm/signer/MediaDrmSigner.java139
11 files changed, 490 insertions, 26 deletions
diff --git a/media/java/android/media/MediaDrm.java b/media/java/android/media/MediaDrm.java
index f5a703b..9bf48ce 100644
--- a/media/java/android/media/MediaDrm.java
+++ b/media/java/android/media/MediaDrm.java
@@ -1,4 +1,4 @@
-/*
+ /*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
@@ -21,12 +21,15 @@ import java.lang.ref.WeakReference;
import java.util.UUID;
import java.util.HashMap;
import java.util.List;
+import android.os.Binder;
+import android.os.Debug;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.os.Bundle;
import android.os.Parcel;
import android.util.Log;
+import android.content.Context;
/**
* MediaDrm can be used to obtain keys for decrypting protected media streams, in
@@ -103,6 +106,20 @@ public final class MediaDrm {
private long mNativeContext;
/**
+ * Specify no certificate type
+ *
+ * @hide - not part of the public API at this time
+ */
+ public static final int CERTIFICATE_TYPE_NONE = 0;
+
+ /**
+ * Specify X.509 certificate type
+ *
+ * @hide - not part of the public API at this time
+ */
+ public static final int CERTIFICATE_TYPE_X509 = 1;
+
+ /**
* Query if the given scheme identified by its UUID is supported on
* this device.
* @param uuid The UUID of the crypto scheme.
@@ -318,6 +335,9 @@ public final class MediaDrm {
* Contains the opaque data an app uses to request keys from a license server
*/
public final static class KeyRequest {
+ private byte[] mData;
+ private String mDefaultUrl;
+
KeyRequest() {}
/**
@@ -331,9 +351,6 @@ public final class MediaDrm {
* server URL from other sources.
*/
public String getDefaultUrl() { return mDefaultUrl; }
-
- private byte[] mData;
- private String mDefaultUrl;
};
/**
@@ -458,7 +475,12 @@ public final class MediaDrm {
* is returned in ProvisionRequest.data. The recommended URL to deliver the provision
* request to is returned in ProvisionRequest.defaultUrl.
*/
- public native ProvisionRequest getProvisionRequest();
+ public ProvisionRequest getProvisionRequest() {
+ return getProvisionRequestNative(CERTIFICATE_TYPE_NONE, "");
+ }
+
+ private native ProvisionRequest getProvisionRequestNative(int certType,
+ String certAuthority);
/**
* After a provision response is received by the app, it is provided to the DRM
@@ -470,7 +492,12 @@ public final class MediaDrm {
* @throws DeniedByServerException if the response indicates that the
* server rejected the request
*/
- public native void provideProvisionResponse(byte[] response)
+ public void provideProvisionResponse(byte[] response)
+ throws DeniedByServerException {
+ provideProvisionResponseNative(response);
+ }
+
+ private native Certificate provideProvisionResponseNative(byte[] response)
throws DeniedByServerException;
/**
@@ -685,6 +712,120 @@ public final class MediaDrm {
return new CryptoSession(this, sessionId, cipherAlgorithm, macAlgorithm);
}
+ /**
+ * Contains the opaque data an app uses to request a certificate from a provisioning
+ * server
+ *
+ * @hide - not part of the public API at this time
+ */
+ public final static class CertificateRequest {
+ private byte[] mData;
+ private String mDefaultUrl;
+
+ CertificateRequest(byte[] data, String defaultUrl) {
+ mData = data;
+ mDefaultUrl = defaultUrl;
+ }
+
+ /**
+ * Get the opaque message data
+ */
+ public byte[] getData() { return mData; }
+
+ /**
+ * Get the default URL to use when sending the certificate request
+ * message to a server, if known. The app may prefer to use a different
+ * certificate server URL obtained from other sources.
+ */
+ public String getDefaultUrl() { return mDefaultUrl; }
+ }
+
+ /**
+ * Generate a certificate request, specifying the certificate type
+ * and authority. The response received should be passed to
+ * provideCertificateResponse.
+ *
+ * @param certType Specifies the certificate type.
+ *
+ * @param certAuthority is passed to the certificate server to specify
+ * the chain of authority.
+ *
+ * @hide - not part of the public API at this time
+ */
+ public CertificateRequest getCertificateRequest(int certType,
+ String certAuthority)
+ {
+ ProvisionRequest provisionRequest = getProvisionRequestNative(certType, certAuthority);
+ return new CertificateRequest(provisionRequest.getData(),
+ provisionRequest.getDefaultUrl());
+ }
+
+ /**
+ * Contains the wrapped private key and public certificate data associated
+ * with a certificate.
+ *
+ * @hide - not part of the public API at this time
+ */
+ public final static class Certificate {
+ Certificate() {}
+
+ /**
+ * Get the wrapped private key data
+ */
+ public byte[] getWrappedPrivateKey() { return mWrappedKey; }
+
+ /**
+ * Get the PEM-encoded certificate chain
+ */
+ public byte[] getContent() { return mCertificateData; }
+
+ private byte[] mWrappedKey;
+ private byte[] mCertificateData;
+ }
+
+
+ /**
+ * Process a response from the certificate server. The response
+ * is obtained from an HTTP Post to the url provided by getCertificateRequest.
+ * <p>
+ * The public X509 certificate chain and wrapped private key are returned
+ * in the returned Certificate objec. The certificate chain is in PEM format.
+ * The wrapped private key should be stored in application private
+ * storage, and used when invoking the signRSA method.
+ *
+ * @param response the opaque certificate response byte array to provide to the
+ * DRM engine plugin.
+ *
+ * @throws DeniedByServerException if the response indicates that the
+ * server rejected the request
+ *
+ * @hide - not part of the public API at this time
+ */
+ public Certificate provideCertificateResponse(byte[] response)
+ throws DeniedByServerException {
+ return provideProvisionResponseNative(response);
+ }
+
+ private static final native byte[] signRSANative(MediaDrm drm, byte[] sessionId,
+ String algorithm, byte[] wrappedKey,
+ byte[] message);
+
+ /**
+ * Sign data using an RSA key
+ *
+ * @param context the app context
+ * @param sessionId a sessionId obtained from openSession on the MediaDrm object
+ * @param algorithm the signing algorithm to use, e.g. "PKCS1-BlockType1"
+ * @param wrappedKey - the wrapped (encrypted) RSA private key obtained
+ * from provideCertificateResponse
+ * @param message the data for which a signature is to be computed
+ *
+ * @hide - not part of the public API at this time
+ */
+ public byte[] signRSA(Context context, byte[] sessionId, String algorithm, byte[] wrappedKey, byte[] message) {
+ return signRSANative(this, sessionId, algorithm, wrappedKey, message);
+ }
+
@Override
protected void finalize() {
native_finalize();
diff --git a/media/jni/android_media_MediaDrm.cpp b/media/jni/android_media_MediaDrm.cpp
index 052d97d..1dbaa3a 100644
--- a/media/jni/android_media_MediaDrm.cpp
+++ b/media/jni/android_media_MediaDrm.cpp
@@ -100,6 +100,16 @@ struct KeyTypes {
jint kKeyTypeRelease;
} gKeyTypes;
+struct CertificateTypes {
+ jint kCertificateTypeNone;
+ jint kCertificateTypeX509;
+} gCertificateTypes;
+
+struct CertificateFields {
+ jfieldID wrappedPrivateKey;
+ jfieldID certificateData;
+};
+
struct fields_t {
jfieldID context;
jmethodID post_event;
@@ -110,6 +120,11 @@ struct fields_t {
SetFields set;
IteratorFields iterator;
EntryFields entry;
+ CertificateFields certificate;
+ jclass certificateClassId;
+ jclass hashmapClassId;
+ jclass arraylistClassId;
+ jclass stringClassId;
};
static fields_t gFields;
@@ -406,8 +421,7 @@ static String8 JStringToString8(JNIEnv *env, jstring const &jstr) {
*/
static KeyedVector<String8, String8> HashMapToKeyedVector(JNIEnv *env, jobject &hashMap) {
- jclass clazz;
- FIND_CLASS(clazz, "java/lang/String");
+ jclass clazz = gFields.stringClassId;
KeyedVector<String8, String8> keyedVector;
jobject entrySet = env->CallObjectMethod(hashMap, gFields.hashmap.entrySet);
@@ -450,8 +464,7 @@ static KeyedVector<String8, String8> HashMapToKeyedVector(JNIEnv *env, jobject &
}
static jobject KeyedVectorToHashMap (JNIEnv *env, KeyedVector<String8, String8> const &map) {
- jclass clazz;
- FIND_CLASS(clazz, "java/util/HashMap");
+ jclass clazz = gFields.hashmapClassId;
jobject hashMap = env->NewObject(clazz, gFields.hashmap.init);
for (size_t i = 0; i < map.size(); ++i) {
jstring jkey = env->NewStringUTF(map.keyAt(i).string());
@@ -465,8 +478,7 @@ static jobject KeyedVectorToHashMap (JNIEnv *env, KeyedVector<String8, String8>
static jobject ListOfVectorsToArrayListOfByteArray(JNIEnv *env,
List<Vector<uint8_t> > list) {
- jclass clazz;
- FIND_CLASS(clazz, "java/util/ArrayList");
+ jclass clazz = gFields.arraylistClassId;
jobject arrayList = env->NewObject(clazz, gFields.arraylist.init);
List<Vector<uint8_t> >::iterator iter = list.begin();
while (iter != list.end()) {
@@ -542,6 +554,11 @@ static void android_media_MediaDrm_native_init(JNIEnv *env) {
GET_STATIC_FIELD_ID(field, clazz, "KEY_TYPE_RELEASE", "I");
gKeyTypes.kKeyTypeRelease = env->GetStaticIntField(clazz, field);
+ GET_STATIC_FIELD_ID(field, clazz, "CERTIFICATE_TYPE_NONE", "I");
+ gCertificateTypes.kCertificateTypeNone = env->GetStaticIntField(clazz, field);
+ GET_STATIC_FIELD_ID(field, clazz, "CERTIFICATE_TYPE_X509", "I");
+ gCertificateTypes.kCertificateTypeX509 = env->GetStaticIntField(clazz, field);
+
FIND_CLASS(clazz, "android/media/MediaDrm$KeyRequest");
GET_FIELD_ID(gFields.keyRequest.data, clazz, "mData", "[B");
GET_FIELD_ID(gFields.keyRequest.defaultUrl, clazz, "mDefaultUrl", "Ljava/lang/String;");
@@ -550,6 +567,11 @@ static void android_media_MediaDrm_native_init(JNIEnv *env) {
GET_FIELD_ID(gFields.provisionRequest.data, clazz, "mData", "[B");
GET_FIELD_ID(gFields.provisionRequest.defaultUrl, clazz, "mDefaultUrl", "Ljava/lang/String;");
+ FIND_CLASS(clazz, "android/media/MediaDrm$Certificate");
+ GET_FIELD_ID(gFields.certificate.wrappedPrivateKey, clazz, "mWrappedKey", "[B");
+ GET_FIELD_ID(gFields.certificate.certificateData, clazz, "mCertificateData", "[B");
+ gFields.certificateClassId = reinterpret_cast<jclass>(env->NewGlobalRef(clazz));
+
FIND_CLASS(clazz, "java/util/ArrayList");
GET_METHOD_ID(gFields.arraylist.init, clazz, "<init>", "()V");
GET_METHOD_ID(gFields.arraylist.add, clazz, "add", "(Ljava/lang/Object;)Z");
@@ -571,6 +593,15 @@ static void android_media_MediaDrm_native_init(JNIEnv *env) {
FIND_CLASS(clazz, "java/util/Map$Entry");
GET_METHOD_ID(gFields.entry.getKey, clazz, "getKey", "()Ljava/lang/Object;");
GET_METHOD_ID(gFields.entry.getValue, clazz, "getValue", "()Ljava/lang/Object;");
+
+ FIND_CLASS(clazz, "java/util/HashMap");
+ gFields.hashmapClassId = reinterpret_cast<jclass>(env->NewGlobalRef(clazz));
+
+ FIND_CLASS(clazz, "java/lang/String");
+ gFields.stringClassId = reinterpret_cast<jclass>(env->NewGlobalRef(clazz));
+
+ FIND_CLASS(clazz, "java/util/ArrayList");
+ gFields.arraylistClassId = reinterpret_cast<jclass>(env->NewGlobalRef(clazz));
}
static void android_media_MediaDrm_native_setup(
@@ -826,8 +857,8 @@ static jobject android_media_MediaDrm_queryKeyStatus(
return KeyedVectorToHashMap(env, infoMap);
}
-static jobject android_media_MediaDrm_getProvisionRequest(
- JNIEnv *env, jobject thiz) {
+static jobject android_media_MediaDrm_getProvisionRequestNative(
+ JNIEnv *env, jobject thiz, jint jcertType, jstring jcertAuthority) {
sp<IDrm> drm = GetDrm(env, thiz);
if (drm == NULL) {
@@ -839,7 +870,17 @@ static jobject android_media_MediaDrm_getProvisionRequest(
Vector<uint8_t> request;
String8 defaultUrl;
- status_t err = drm->getProvisionRequest(request, defaultUrl);
+ String8 certType;
+ if (jcertType == gCertificateTypes.kCertificateTypeX509) {
+ certType = "X.509";
+ } else if (jcertType == gCertificateTypes.kCertificateTypeNone) {
+ certType = "none";
+ } else {
+ certType = "invalid";
+ }
+
+ String8 certAuthority = JStringToString8(env, jcertAuthority);
+ status_t err = drm->getProvisionRequest(certType, certAuthority, request, defaultUrl);
if (throwExceptionAsNecessary(env, err, "Failed to get provision request")) {
return NULL;
@@ -863,27 +904,43 @@ static jobject android_media_MediaDrm_getProvisionRequest(
return provisionObj;
}
-static void android_media_MediaDrm_provideProvisionResponse(
+static jobject android_media_MediaDrm_provideProvisionResponseNative(
JNIEnv *env, jobject thiz, jbyteArray jresponse) {
sp<IDrm> drm = GetDrm(env, thiz);
if (drm == NULL) {
jniThrowException(env, "java/lang/IllegalStateException",
"MediaDrm obj is null");
- return;
+ return NULL;
}
if (jresponse == NULL) {
jniThrowException(env, "java/lang/IllegalArgumentException",
"provision response is null");
- return;
+ return NULL;
}
Vector<uint8_t> response(JByteArrayToVector(env, jresponse));
+ Vector<uint8_t> certificate, wrappedKey;
+
+ status_t err = drm->provideProvisionResponse(response, certificate, wrappedKey);
+
+ // Fill out return obj
+ jclass clazz = gFields.certificateClassId;
+
+ jobject certificateObj = NULL;
+
+ if (clazz && certificate.size() && wrappedKey.size()) {
+ certificateObj = env->AllocObject(clazz);
+ jbyteArray jcertificate = VectorToJByteArray(env, certificate);
+ env->SetObjectField(certificateObj, gFields.certificate.certificateData, jcertificate);
- status_t err = drm->provideProvisionResponse(response);
+ jbyteArray jwrappedKey = VectorToJByteArray(env, wrappedKey);
+ env->SetObjectField(certificateObj, gFields.certificate.wrappedPrivateKey, jwrappedKey);
+ }
throwExceptionAsNecessary(env, err, "Failed to handle provision response");
+ return certificateObj;
}
static jobject android_media_MediaDrm_getSecureStops(
@@ -1209,6 +1266,38 @@ static jboolean android_media_MediaDrm_verifyNative(
}
+static jbyteArray android_media_MediaDrm_signRSANative(
+ JNIEnv *env, jobject thiz, jobject jdrm, jbyteArray jsessionId,
+ jstring jalgorithm, jbyteArray jwrappedKey, jbyteArray jmessage) {
+
+ sp<IDrm> drm = GetDrm(env, jdrm);
+
+ if (!CheckSession(env, drm, jsessionId)) {
+ return NULL;
+ }
+
+ if (jalgorithm == NULL || jwrappedKey == NULL || jmessage == NULL) {
+ jniThrowException(env, "java/lang/IllegalArgumentException",
+ "required argument is null");
+ return NULL;
+ }
+
+ Vector<uint8_t> sessionId(JByteArrayToVector(env, jsessionId));
+ String8 algorithm = JStringToString8(env, jalgorithm);
+ Vector<uint8_t> wrappedKey(JByteArrayToVector(env, jwrappedKey));
+ Vector<uint8_t> message(JByteArrayToVector(env, jmessage));
+ Vector<uint8_t> signature;
+
+ status_t err = drm->signRSA(sessionId, algorithm, message, wrappedKey, signature);
+
+ if (throwExceptionAsNecessary(env, err, "Failed to sign")) {
+ return NULL;
+ }
+
+ return VectorToJByteArray(env, signature);
+}
+
+
static JNINativeMethod gMethods[] = {
{ "release", "()V", (void *)android_media_MediaDrm_release },
{ "native_init", "()V", (void *)android_media_MediaDrm_native_init },
@@ -1244,11 +1333,11 @@ static JNINativeMethod gMethods[] = {
{ "queryKeyStatus", "([B)Ljava/util/HashMap;",
(void *)android_media_MediaDrm_queryKeyStatus },
- { "getProvisionRequest", "()Landroid/media/MediaDrm$ProvisionRequest;",
- (void *)android_media_MediaDrm_getProvisionRequest },
+ { "getProvisionRequestNative", "(ILjava/lang/String;)Landroid/media/MediaDrm$ProvisionRequest;",
+ (void *)android_media_MediaDrm_getProvisionRequestNative },
- { "provideProvisionResponse", "([B)V",
- (void *)android_media_MediaDrm_provideProvisionResponse },
+ { "provideProvisionResponseNative", "([B)Landroid/media/MediaDrm$Certificate;",
+ (void *)android_media_MediaDrm_provideProvisionResponseNative },
{ "getSecureStops", "()Ljava/util/List;",
(void *)android_media_MediaDrm_getSecureStops },
@@ -1287,6 +1376,9 @@ static JNINativeMethod gMethods[] = {
{ "verifyNative", "(Landroid/media/MediaDrm;[B[B[B[B)Z",
(void *)android_media_MediaDrm_verifyNative },
+
+ { "signRSANative", "(Landroid/media/MediaDrm;[BLjava/lang/String;[B[B)[B",
+ (void *)android_media_MediaDrm_signRSANative },
};
int register_android_media_Drm(JNIEnv *env) {
diff --git a/media/lib/Android.mk b/media/lib/remotedisplay/Android.mk
index 50799a6..ea1ac2b 100644
--- a/media/lib/Android.mk
+++ b/media/lib/remotedisplay/Android.mk
@@ -15,7 +15,7 @@
#
LOCAL_PATH := $(call my-dir)
-# the library
+# the remotedisplay library
# ============================================================
include $(CLEAR_VARS)
@@ -23,7 +23,7 @@ LOCAL_MODULE:= com.android.media.remotedisplay
LOCAL_MODULE_TAGS := optional
LOCAL_SRC_FILES := \
- $(call all-subdir-java-files) \
+ $(call all-java-files-under, java) \
$(call all-aidl-files-under, java)
include $(BUILD_JAVA_LIBRARY)
diff --git a/media/lib/README.txt b/media/lib/remotedisplay/README.txt
index cade3df..5738dbe 100644
--- a/media/lib/README.txt
+++ b/media/lib/remotedisplay/README.txt
@@ -25,4 +25,3 @@ with the framework in a new API. That API isn't ready yet so this
library is a compromise to make new capabilities available to the system
without exposing the full surface area of the support library media
route provider protocol.
-
diff --git a/media/lib/com.android.media.remotedisplay.xml b/media/lib/remotedisplay/com.android.media.remotedisplay.xml
index 77a91d2..77a91d2 100644
--- a/media/lib/com.android.media.remotedisplay.xml
+++ b/media/lib/remotedisplay/com.android.media.remotedisplay.xml
diff --git a/media/lib/java/com/android/media/remotedisplay/RemoteDisplay.java b/media/lib/remotedisplay/java/com/android/media/remotedisplay/RemoteDisplay.java
index 6cfc0e8..6cfc0e8 100644
--- a/media/lib/java/com/android/media/remotedisplay/RemoteDisplay.java
+++ b/media/lib/remotedisplay/java/com/android/media/remotedisplay/RemoteDisplay.java
diff --git a/media/lib/java/com/android/media/remotedisplay/RemoteDisplayProvider.java b/media/lib/remotedisplay/java/com/android/media/remotedisplay/RemoteDisplayProvider.java
index e2df77c..e2df77c 100644
--- a/media/lib/java/com/android/media/remotedisplay/RemoteDisplayProvider.java
+++ b/media/lib/remotedisplay/java/com/android/media/remotedisplay/RemoteDisplayProvider.java
diff --git a/media/lib/signer/Android.mk b/media/lib/signer/Android.mk
new file mode 100644
index 0000000..4c3772f
--- /dev/null
+++ b/media/lib/signer/Android.mk
@@ -0,0 +1,45 @@
+#
+# Copyright (C) 2013 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+LOCAL_PATH := $(call my-dir)
+
+# the mediadrm signer library
+# ============================================================
+include $(CLEAR_VARS)
+
+LOCAL_MODULE:= com.android.mediadrm.signer
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := \
+ $(call all-java-files-under, java)
+
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
+
+# ==== com.android.mediadrm.signer.xml lib def ========================
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := com.android.mediadrm.signer.xml
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_MODULE_CLASS := ETC
+
+# This will install the file in /system/etc/permissions
+#
+LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)/permissions
+
+LOCAL_SRC_FILES := $(LOCAL_MODULE)
+
+include $(BUILD_PREBUILT)
diff --git a/media/lib/signer/README.txt b/media/lib/signer/README.txt
new file mode 100644
index 0000000..362ab8e
--- /dev/null
+++ b/media/lib/signer/README.txt
@@ -0,0 +1,28 @@
+This library (com.android.mediadrm.signer.jar) is a shared java library
+containing classes required by unbundled apps running on devices that use
+the certficate provisioning and private key signing capabilities provided
+by the MediaDrm API.
+
+--- Rules of this library ---
+o This library is effectively a PUBLIC API for unbundled CAST receivers
+ that may be distributed outside the system image. So it MUST BE API STABLE.
+ You can add but not remove. The rules are the same as for the
+ public platform SDK API.
+o This library can see and instantiate internal platform classes, but it must not
+ expose them in any public method (or by extending them via inheritance). This would
+ break clients of the library because they cannot see the internal platform classes.
+
+This library is distributed in the system image, and loaded as
+a shared library. So you can change the implementation, but not
+the interface. In this way it is like framework.jar.
+
+--- Why does this library exist? ---
+
+Unbundled apps cannot use internal platform classes.
+
+This library will eventually be replaced when the provisioned certificate-
+based signing infrastructure that is currently defined in the support library
+is reintegrated with the framework in a new API. That API isn't ready yet so
+this library is a compromise to make new capabilities available to the system
+without exposing the full surface area of the support library.
+
diff --git a/media/lib/signer/com.android.mediadrm.signer.xml b/media/lib/signer/com.android.mediadrm.signer.xml
new file mode 100644
index 0000000..b5b1f09
--- /dev/null
+++ b/media/lib/signer/com.android.mediadrm.signer.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<permissions>
+ <library name="com.android.media.drm.signer"
+ file="/system/framework/com.android.media.drm.signer.jar" />
+</permissions>
diff --git a/media/lib/signer/java/com/android/mediadrm/signer/MediaDrmSigner.java b/media/lib/signer/java/com/android/mediadrm/signer/MediaDrmSigner.java
new file mode 100644
index 0000000..d971afb
--- /dev/null
+++ b/media/lib/signer/java/com/android/mediadrm/signer/MediaDrmSigner.java
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.mediadrm.signer;
+
+import android.content.Context;
+import android.media.MediaDrm;
+import android.media.DeniedByServerException;
+
+/**
+ * Provides certificate request generation, response handling and
+ * signing APIs
+ */
+public final class MediaDrmSigner {
+ private MediaDrmSigner() {}
+
+ /**
+ * Specify X.509 certificate type
+ */
+ public static final int CERTIFICATE_TYPE_X509 = MediaDrm.CERTIFICATE_TYPE_X509;
+
+ /**
+ * Contains the opaque data an app uses to request a certificate from a provisioning
+ * server
+ */
+ public final static class CertificateRequest {
+ private MediaDrm.CertificateRequest mCertRequest;
+
+ CertificateRequest(MediaDrm.CertificateRequest certRequest) {
+ mCertRequest = certRequest;
+ }
+
+ /**
+ * Get the opaque message data
+ */
+ public byte[] getData() {
+ return mCertRequest.getData();
+ }
+
+ /**
+ * Get the default URL to use when sending the certificate request
+ * message to a server, if known. The app may prefer to use a different
+ * certificate server URL obtained from other sources.
+ */
+ public String getDefaultUrl() {
+ return mCertRequest.getDefaultUrl();
+ }
+ }
+
+ /**
+ * Contains the wrapped private key and public certificate data associated
+ * with a certificate.
+ */
+ public final static class Certificate {
+ private MediaDrm.Certificate mCertificate;
+
+ Certificate(MediaDrm.Certificate certificate) {
+ mCertificate = certificate;
+ }
+
+ /**
+ * Get the wrapped private key data
+ */
+ public byte[] getWrappedPrivateKey() {
+ return mCertificate.getWrappedPrivateKey();
+ }
+
+ /**
+ * Get the PEM-encoded public certificate chain
+ */
+ public byte[] getContent() {
+ return mCertificate.getContent();
+ }
+ }
+
+ /**
+ * Generate a certificate request, specifying the certificate type
+ * and authority. The response received should be passed to
+ * provideCertificateResponse.
+ *
+ * @param drm the MediaDrm object
+ * @param certType Specifies the certificate type.
+ * @param certAuthority is passed to the certificate server to specify
+ * the chain of authority.
+ */
+ public static CertificateRequest getCertificateRequest(MediaDrm drm, int certType,
+ String certAuthority) {
+ return new CertificateRequest(drm.getCertificateRequest(certType, certAuthority));
+ }
+
+ /**
+ * Process a response from the provisioning server. The response
+ * is obtained from an HTTP Post to the url provided by getCertificateRequest.
+ *
+ * The public X509 certificate chain and wrapped private key are returned
+ * in the returned Certificate objec. The certificate chain is in BIO serialized
+ * PEM format. The wrapped private key should be stored in application private
+ * storage, and used when invoking the signRSA method.
+ *
+ * @param drm the MediaDrm object
+ * @param response the opaque certificate response byte array to provide to the
+ * DRM engine plugin.
+ * @throws android.media.DeniedByServerException if the response indicates that the
+ * server rejected the request
+ */
+ public static Certificate provideCertificateResponse(MediaDrm drm, byte[] response)
+ throws DeniedByServerException {
+ return new Certificate(drm.provideCertificateResponse(response));
+ }
+
+ /**
+ * Sign data using an RSA key
+ *
+ * @param context the App context
+ * @param drm the MediaDrm object
+ * @param sessionId a sessionId obtained from openSession on the MediaDrm object
+ * @param algorithm the signing algorithm to use, e.g. "PKCS1-BlockType1"
+ * @param wrappedKey - the wrapped (encrypted) RSA private key obtained
+ * from provideCertificateResponse
+ * @param message the data for which a signature is to be computed
+ */
+ public static byte[] signRSA(Context context, MediaDrm drm, byte[] sessionId,
+ String algorithm, byte[] wrappedKey, byte[] message) {
+ return drm.signRSA(context, sessionId, algorithm, wrappedKey, message);
+ }
+}
generated by cgit v1.1 at 2024-06-23 04:49:58 +0000