java - How to hardcode private key which can be used to encrypt once and decrypt many times? -

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in application want use private key encrypt password once , decrypt many times tool run.

application run like:

  • user encrypt password using tool.
  • then user paste password in properties file.
  • when next time tool run read password , decrypt login.

here facing problem like, when encrypt password doing using tool encryption perpose. when try decrypt key different key generated. how can share private key between these 2 tools..

thanks..

i think confusing symetric , asymetric encryption. when doing symetric encryption can use same key. in asymetric encryption have 2 keys. public key can encrypt passwords, can't decrypt them key. possible private key. therefore don't need share key between tools. name suggests private key should never leave system.


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