c2c49ed0c1
SHA-1 is deprecated, but the replacement SHA-256 is only supported for JAR/APK and OTA update package signatures on API Level 18 and newer. This change thus adds a --min-sdk-version command-line parameter to signapk. When this parameter is set to 18 or higher, SHA-256 is used instead of SHA-1. When the parameter is not provided, SHA-1 is used same as before. This change also removes any other digests from the MANIFEST.MF. This is to ignore any MANIFEST.MF digests already there in the APK, such as when re-signing an already signed APK. Build scripts will be modified to provide the --min-sdk-version parameter in a follow-up change. This is not done in this change because of prebuilts which require a prebuilt version of signapk to support this parameter before the build scripts can be modified. Bug: 25643280 Change-Id: I6a2782e465600fe2a3ad0c10bd80db2b80a6fb76