java.security.InvalidKeyException: Invalid AES key length: 4 bytes

Stack Overflow | Furunomoe | 7 months ago
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Root Cause Analysis

  1. java.security.InvalidKeyException

    Invalid AES key length: 4 bytes

    at com.sun.crypto.provider.AESCipher.engineGetKeySize()
  2. com.sun.crypto
    AESCipher.engineGetKeySize
    1. com.sun.crypto.provider.AESCipher.engineGetKeySize(AESCipher.java:495)
    1 frame
  3. Android Platform
    Cipher.init
    1. javax.crypto.Cipher.passCryptoPermCheck(Cipher.java:1067)
    2. javax.crypto.Cipher.checkCryptoPerm(Cipher.java:1025)
    3. javax.crypto.Cipher.implInit(Cipher.java:801)
    4. javax.crypto.Cipher.chooseProvider(Cipher.java:864)
    5. javax.crypto.Cipher.init(Cipher.java:1249)
    6. javax.crypto.Cipher.init(Cipher.java:1186)
    6 frames
  4. com.example.test
    Decrypt.main
    1. com.example.test.app.Decrypt.main(Decrypt.java:24)
    1 frame