Android系统替换证书

最新推荐文章于 2025-10-23 15:29:39 发布

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最新推荐文章于 2025-10-23 15:29:39 发布 · 置顶 · 1k 阅读

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本文详细介绍了Android系统中OTA更新的签名与验证流程，包括证书的生成与使用、公钥提取及签名命令行操作等内容。

证书说明README

build/target/product/security/README

For detailed information on key types and image signing, please see:

https://source.android.com/devices/tech/ota/sign_builds.html

The test keys in this directory are used in development only and should
NEVER be used to sign packages in publicly released images (as that would
open a major security hole).

key generation
--------------

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'

signing using the openssl commandline (for boot/system images)
---------------------------------------------