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Simple AES128/192/256 in Java

License: The Unlicense

Java 100.00%

aes-encryption aes-cipher aes-256 aes-128 aes-192 aes-ecb aes-cbc

tiny-aes's Introduction

Tiny AES in Java

This is a small and simple implementation of the AES ECB and CBC encryption algorithm written in Java.

You can use 128, 192 and 256 bit key. See the example in the Main.java. TODO Optimization, refactor

tiny-aes's People

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cunninglogic valdemiro-vieira binge1993 evegab michaeleal ccf19881030 leojiao123 teguhpratala mark31266 krasnovd leoqard leoleont vtyagah senthil4321 etreliu

tiny-aes's Issues

Array length?

tiny-AES/src/ru/tehcpu/tinyaes/core/AES.java

Lines 151 to 155 in d11fef5

    
           for (int i = 0; i < in.length; i++) { 
        
               for (int j = 0; j < in[0].length; j++) { 
        
                   out[i][j] = in[i][j]; 
        
               } 
        
           }

isnt this the correct way?

 for (int i = 0; i < in.length; i++) { 
     for (int j = 0; j < in.length; j++) { 
         out[i][j] = in[i][j]; 
     } 
}

Wrong manual copy

tiny-AES/src/ru/tehcpu/tinyaes/core/AES.java

Lines 99 to 101 in d11fef5

    
           for (int i = 0; i < key.length; i++) { 
        
               key[i] = key[i]; 
        
           }

I think it is

        for (int i = 0; i < key.length; i++) {
            this.key[i] = key[i];
        }

Byte array padding for binary data?

Any plans to implement padding for binary data? Also the padding must be removed after decryption?

AES 256-CBC not "NIST" compliant

https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-38a.pdf

NIST Test-Vektoren    CBC-AES256.Encrypt
Key: 603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4 
IV:  000102030405060708090a0b0c0d0e0f 
Block #1 
Plaintext 		6bc1bee22e409f96e93d7e117393172a 
Input Block 	6bc0bce12a459991e134741a7f9e1925 
Output Block 	f58c4c04d6e5f1ba779eabfb5f7bfbd6 
Ciphertext 	f58c4c04d6e5f1ba779eabfb5f7bfbd6

yout Cipher : 900f361bf51e7ece007e87294ba5062f

Why is your AES calculation not the same?

It's useless?

I don't think it's worked with AES-128 and AES-192.

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	for (int i = 0; i < in.length; i++) {
	for (int j = 0; j < in[0].length; j++) {
	out[i][j] = in[i][j];
	}
	}