1.使用platform密钥对apk进行签名
1.1.进入<Android_Source_Path>/build/target/product/security,找到【platform.pk8】和【platform.x509.pem】系统密钥。
1.2.进入<Android_Source_Path>/build/tools/signapk找到SignApk.java，执行javac编译成SignApk.class
1.3.运行命令java com.android.signapk.SignApk platform.x509.pem platform.pk8 input.apk output.apk
至此，完毕。
2. 对1的补充：
<Android_Source_Path>/build/target/product/security下有多对密钥，具体例如以下：
The following commands were used to generate the test key pairs:
development/tools/make_key testkey '/C=US/ST=California/L=Mountain View/O=Android/OU=Android/CN=Android/emailAddress=android@android.com'
development/tools/make_key platform '/C=US/ST=California/L=Mountain View/O=Android/OU=Android/CN=Android/emailAddress=android@android.com'
development/tools/make_key shared '/C=US/ST=California/L=Mountain View/O=Android/OU=Android/CN=Android/emailAddress=android@android.com'
development/tools/make_key media '/C=US/ST=California/L=Mountain View/O=Android/OU=Android/CN=Android/emailAddress=android@android.com'
The following standard test keys are currently included:
testkey -- a generic key for packages that do not otherwise specify a key.
platform -- a test key for packages that are part of the core platform.
shared -- a test key for things that are shared in the home/contacts process.
media -- a test key for packages that are part of the media/download system.
These test keys are used strictly in development, and should never be assumed
to convey any sort of validity. When $BUILD_SECURE=true, the code should not
honor these keys in any context.
signing using the openssl commandline (for boot/system images)
--------------------------------------------------------------
1. convert pk8 format key to pem format
% openssl pkcs8 -inform DER -nocrypt -in testkey.pk8 -out testkey.pem
2. create a signature using the pem format key
% openssl dgst -binary -sha1 -sign testkey.pem FILE > FILE.sig
extracting public keys for embedding
------------------------------------
it's a Java tool
but it generates C code
take a look at commands/recovery/Android.mk
you'll see it running $(HOST_OUT_JAVA_LIBRARIES)/dumpkey.jar
3.对3的补充：
在执行第三步的命令前，请在你当前的工作文件夹下新建例如以下结构的文件夹:com.android.signapk，然后将第二步编译生成的SignApk放入该文件夹下。或者也能够将SignApk.java的package声明删除后再执行javac编译。
命令java com.android.signapk.SignApk platform.x509.pem platform.pk8 input.apk output.apk
不单能够对apk文件进行重签名，也能够对全部的zip文件进行重签名，包含ROM文件。
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转载请注明出处: http://blog.csdn.net/sodino/archive/2010/11/17/6016706.aspx