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JKS Protection

Are JKS (Java Key Store) files encrypted? Do they provide full encryption key protection or do I need to rely solely on access control?
Is there a way to provide key protection?

I'm interested in the detailed details, including the algorithm, key management, etc. Is it configurable?

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java security encryption jks
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2 answers

They are encrypted.

The algorithm is vendor-specific. The provider will return the key / certificate based on the password. If you need strong security, find a keystore provider that uses strong encryption.

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More precisely:

  • PrivateKeys and SecretKeys within the JKS file are encrypted with their own password.
  • Trusted certificate integrity is protected by a MAC using a keystore password.
  • The file as a whole is not encrypted, and an attacker can list its entries without a password keystore.
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