Align certificate validity and RSA defaults with AOSP#167
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JingMatrix merged 1 commit intomainfrom Mar 21, 2026
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1. Certificate Validity: Matches `add_required_parameters`:
- NotBefore: Unix Epoch (0).
- NotAfter: RFC 5280 GeneralizedTime max (9999-12-31). Previous
defaults (Current Time to +1 Year) imply a fingerprinting risk.
2. RSA Exponent: Added a null-safe fallback to F4 (65537). This prevents
a NullPointerException when callers omit the public exponent
parameter.
Corresponding references:
1. https://cs.android.com/android/platform/superproject/+/android-latest-release:system/security/keystore2/src/security_level.rs;
2. https://cs.android.com/android/platform/superproject/main/+/main:frameworks/base/keystore/java/android/security/keystore2/AndroidKeyStoreKeyPairGeneratorSpi.java;
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Certificate Validity: Matches
add_required_parameters:RSA Exponent: Added a null-safe fallback to F4 (65537). This prevents a NullPointerException when callers omit the public exponent parameter.
Corresponding references: