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https://github.com/kokke/tiny-AES-c
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Included test of CBC mode
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kokke
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test.c
140
test.c
@ -1,25 +1,49 @@
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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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// Enable both ECB and CBC mode. Note this can be done before including aes.h or at compile-time.
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// E.g. with GCC by using the -D flag: gcc -c aes.c -DCBC=0 -DECB=1
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#define CBC 1
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#define ECB 1
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#include "aes.h"
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static void phex(uint8_t* str);
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static void test_ECB(void);
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static void test_decrypt(void);
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static void test_encrypt_ecb(void);
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static void test_decrypt_ecb(void);
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static void test_encrypt_ecb_verbose(void);
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static void test_encrypt_cbc(void);
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static void test_decrypt_cbc(void);
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int main(void)
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{
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test_ECB();
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test_decrypt();
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test_encrypt_cbc();
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test_decrypt_cbc();
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test_decrypt_ecb();
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test_encrypt_ecb();
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test_encrypt_ecb_verbose();
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return 0;
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}
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/* Helpers */
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static void test_ECB(void)
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// prints string as hex
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static void phex(uint8_t* str)
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{
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unsigned char i;
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for(i = 0; i < 16; ++i)
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printf("%.2x", str[i]);
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printf("\n");
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}
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static void test_encrypt_ecb_verbose(void)
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{
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// Example of more verbose verification
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uint8_t i, buf[64], buf2[64];
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// 128bit key
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@ -34,6 +58,7 @@ static void test_ECB(void)
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memset(buf2, 0, 64);
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// print text to encrypt, key and IV
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printf("ECB encrypt verbose:\n\n");
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printf("plain text:\n");
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for(i = (uint8_t) 0; i < (uint8_t) 4; ++i)
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{
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@ -55,26 +80,17 @@ static void test_ECB(void)
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printf("\n");
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}
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// prints string as hex
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static void phex(uint8_t* str)
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{
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unsigned char i;
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for(i = 0; i < 16; ++i)
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printf("%.2x", str[i]);
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printf("\n");
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}
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static void test_decrypt(void)
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static void test_encrypt_ecb(void)
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{
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uint8_t key[] = {0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c};
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uint8_t in[] = {0x3a, 0xd7, 0x7b, 0xb4, 0x0d, 0x7a, 0x36, 0x60, 0xa8, 0x9e, 0xca, 0xf3, 0x24, 0x66, 0xef, 0x97};
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uint8_t out[] = {0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a};
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uint8_t in[] = {0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a};
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uint8_t out[] = {0x3a, 0xd7, 0x7b, 0xb4, 0x0d, 0x7a, 0x36, 0x60, 0xa8, 0x9e, 0xca, 0xf3, 0x24, 0x66, 0xef, 0x97};
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uint8_t buffer[16];
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AES128_ECB_decrypt(in, key, buffer);
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AES128_ECB_encrypt(in, key, buffer);
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printf("decrypt: ");
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printf("ECB decrypt: ");
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if(0 == strncmp((char*) out, (char*) buffer, 16))
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{
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@ -86,3 +102,87 @@ static void test_decrypt(void)
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}
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}
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static void test_decrypt_cbc(void)
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{
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// Example "simulating" a smaller buffer...
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uint8_t key[] = { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c };
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uint8_t iv[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f };
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uint8_t in[] = { 0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46, 0xce, 0xe9, 0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d,
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0x50, 0x86, 0xcb, 0x9b, 0x50, 0x72, 0x19, 0xee, 0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76, 0x78, 0xb2,
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0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b, 0x71, 0x16, 0xe6, 0x9e, 0x22, 0x22, 0x95, 0x16,
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0x3f, 0xf1, 0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09, 0x12, 0x0e, 0xca, 0x30, 0x75, 0x86, 0xe1, 0xa7 };
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uint8_t out[] = { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
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0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
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0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
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0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10 };
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uint8_t buffer[64];
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AES128_CBC_decrypt_buffer(buffer+0, in+0, 16, key, iv);
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AES128_CBC_decrypt_buffer(buffer+16, in+16, 16, key, 0);
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AES128_CBC_decrypt_buffer(buffer+32, in+32, 16, key, 0);
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AES128_CBC_decrypt_buffer(buffer+48, in+48, 16, key, 0);
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printf("CBC decrypt: ");
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if(0 == strncmp((char*) out, (char*) buffer, 64))
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{
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printf("SUCCESS!\n");
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}
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else
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{
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printf("FAILURE!\n");
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}
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}
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static void test_encrypt_cbc(void)
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{
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uint8_t key[] = { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c };
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uint8_t iv[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f };
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uint8_t in[] = { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
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0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
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0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
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0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10 };
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uint8_t out[] = { 0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46, 0xce, 0xe9, 0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d,
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0x50, 0x86, 0xcb, 0x9b, 0x50, 0x72, 0x19, 0xee, 0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76, 0x78, 0xb2,
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0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b, 0x71, 0x16, 0xe6, 0x9e, 0x22, 0x22, 0x95, 0x16,
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0x3f, 0xf1, 0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09, 0x12, 0x0e, 0xca, 0x30, 0x75, 0x86, 0xe1, 0xa7 };
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uint8_t buffer[64];
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AES128_CBC_encrypt_buffer(buffer, in, 64, key, iv);
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printf("CBC encrypt: ");
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if(0 == strncmp((char*) out, (char*) buffer, 64))
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{
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printf("SUCCESS!\n");
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}
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else
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{
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printf("FAILURE!\n");
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}
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}
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static void test_decrypt_ecb(void)
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{
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uint8_t key[] = {0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c};
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uint8_t in[] = {0x3a, 0xd7, 0x7b, 0xb4, 0x0d, 0x7a, 0x36, 0x60, 0xa8, 0x9e, 0xca, 0xf3, 0x24, 0x66, 0xef, 0x97};
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uint8_t out[] = {0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a};
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uint8_t buffer[16];
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AES128_ECB_decrypt(in, key, buffer);
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printf("ECB decrypt: ");
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if(0 == strncmp((char*) out, (char*) buffer, 16))
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{
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printf("SUCCESS!\n");
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}
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else
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{
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printf("FAILURE!\n");
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}
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}
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