PM31743: JAVA CIPHER.DOFINAL DOES NOT RESET BUFFERS

APAR status

• Closed as program error.

Error description

• Java Cipher.doFinal is returning an unexpected RuntimeException
  when the function is called more than once:
  
  Exception: java.lang.RuntimeException: Hardware error from call
  CSNDPKD returnCode 8 reasonCode 11000
  
  The Java 6 API specifically states:
  
  "Upon finishing, this method resets this cipher object to the
  state it was in when previously initialized via a call to init.
  That is, the object is reset and available to encrypt or decrypt
  (depending on the operation mode that was specified in the call
  to init) more data. "
  
  The Cipher.doFinal method does not reset data buffers as it
  should.
  
  KEYWORDS:
  RSA CIPHER DOFINAL CSNDPKD
  

Local fix

• N/A
  

Problem summary

• RSA Cipher doFinal() does not reset the data buffer.
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR9 FP2
  .
  RSA Cipher doFinal() now returns the cipher object to the state
  after the more recent call to init(), as described in the Java
  specification.
  .
  To obtain the fix:
  Install build 20110225 or later
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  JAVA 6 Z/OS 31

• Fixed component ID

  620700105

Applicable component levels

• R600 PSN

     UP