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How to encrypt/decrypt passwords?

843810Feb 14 2003 — edited Jul 5 2007
Hi!
I want to store some usernames and passwords in a file.
I want to use the MD5 or the SHA-1 algorithm.
What classes in the JAVA Cryptography API should I use?
I thought about a MessageDigest, but then I recognized that I can not decrypt the data with a MessageDigest! What else can I use?

I would be very glad if you could give me some hints.
Thx
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Locked on Aug 1 2007
Added on Feb 14 2003
#cryptography
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