24 lines
508 B
Java
24 lines
508 B
Java
package serviceLoader.impl;
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import serviceLoader.Cipher;
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public class CaesarCipher implements Cipher
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{
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public byte[] encrypt(byte[] source, byte[] key)
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{
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byte[] result = new byte[source.length];
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for (int i = 0; i < source.length; i++)
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result[i] = (byte) (source[i] + key[0]);
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return result;
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}
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public byte[] decrypt(byte[] source, byte[] key)
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{
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return encrypt(source, new byte[] { (byte) -key[0] });
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}
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public int strength()
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{
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return 1;
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}
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} |