dcipher | Decipher hashes using online rainbow & lookup table attack | Hashing library
kandi X-RAY | dcipher Summary
kandi X-RAY | dcipher Summary
Decipher hashes using online rainbow & lookup table attack services.
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Top functions reviewed by kandi - BETA
- Retrieve a hash of a hash
dcipher Key Features
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QUESTION
I'm trying to adapt this code to java in order to reduce the number of calls to DB:
...ANSWER
Answered 2021-Jun-21 at 18:05- Firstly, the
DBMS_OBFUSCATION_TOOLKIT
is deprecated and should not be used. - Secondly,
DES
was broken more than 20 years ago and should not be used anymore.
As for your question. The documentation for
DBMS_OBFUSCATION_TOOLKIT.DESDECRYPT
have the following to say about the key parameter:
If the key length is missing or is less than 8 bytes, then the procedure raises the error ORA-28234 "Key length too short." Note that if larger keys are used, extra bytes are ignored. So a 9-byte key will not generate an exception.
So Java just validates the key a bit more.
QUESTION
I am facing the following issue while working with Java cryptography.
error decrjavax.crypto.BadPaddingException: Given final block not properly padded. Such issues can arise if a bad key is used during decryption.
I have checked all possible answers, but couldn't find the exact reason behind this.
One observation that when i use AES/CBC/NoPadding in place of AES/CBC/PKCS5Padding, i can execute it successfully.
here is my code snippet.
...ANSWER
Answered 2020-Jul-11 at 11:19Your error is the way to use your streams when encrypting:
For a CipherOutputStream
it is essential to be closed at the end because only when it is closed the final padding can be written.
In your code however the cipherOutputStream
instance is never closed. hence the padding is never written to the encrypted file.
Of course when decrypting the file there is no padding where a padding should be and you are getting the BadPaddingException
.
Therefore you should change the encyrption to this:
QUESTION
Guide me on this. I am facing problem with decryption of string which is encrypted by iOS "AES/CBC/PKCS7Padding". It throws exception. I want to decrypt string in android, which is encrypted in ios.
In Android i am following this structure:
...ANSWER
Answered 2020-May-17 at 04:57I got real string by using following method.
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