syntax to decrypt password which is saved in encrypted format in oracle 11g

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What is the syntax to decrypt password which is saved in encrypted format in oracle 11g?
Can anybody help me?

Posted 9-Jan-14 20:52pm

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Bernhard Hiller 10-Jan-14 2:59am

Do you understand the concepts behind encryption/decryption and safe password storage? And more important: the difference between them?

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OriginalGriff · Answer 1 · 2014-01-09T21:08:00

There are a couple of things here:
1) Passwords should never be encrypted: they should be hashed instead. Encryption requires a key to decrypt, which needs to be available to software that will read them. This means the key and the data it "protects" are kept close, so it is a security risk! Hashing is not reversible, so it is more secure - you cannot get the input password from the stored value.
2) There are a huge number of ways to encrypt data: even with the encryption key, there is no "one way" to decrypt anything.

Look at the code you wrote to encrypt it, and then apply the appropriate decryption algorithm for that. Then replace it all with hashing. You did write the encryption code, didn't you?