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543c8b28d0
Fixes roboelectric in unit tests.
55 lines
1.8 KiB
Java
55 lines
1.8 KiB
Java
package org.bouncycastle.shaded.crypto;
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/**
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* the interface stream ciphers conform to.
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*/
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public interface StreamCipher
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{
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/**
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* Initialise the cipher.
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*
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* @param forEncryption if true the cipher is initialised for
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* encryption, if false for decryption.
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* @param params the key and other data required by the cipher.
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* @exception IllegalArgumentException if the params argument is
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* inappropriate.
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*/
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public void init(boolean forEncryption, CipherParameters params)
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throws IllegalArgumentException;
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/**
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* Return the name of the algorithm the cipher implements.
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*
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* @return the name of the algorithm the cipher implements.
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*/
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public String getAlgorithmName();
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/**
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* encrypt/decrypt a single byte returning the result.
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*
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* @param in the byte to be processed.
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* @return the result of processing the input byte.
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*/
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public byte returnByte(byte in);
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/**
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* process a block of bytes from in putting the result into out.
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*
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* @param in the input byte array.
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* @param inOff the offset into the in array where the data to be processed starts.
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* @param len the number of bytes to be processed.
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* @param out the output buffer the processed bytes go into.
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* @param outOff the offset into the output byte array the processed data starts at.
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* @return the number of bytes produced - should always be len.
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* @exception DataLengthException if the output buffer is too small.
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*/
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public int processBytes(byte[] in, int inOff, int len, byte[] out, int outOff)
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throws DataLengthException;
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/**
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* reset the cipher. This leaves it in the same state
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* it was at after the last init (if there was one).
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*/
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public void reset();
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}
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