From bb1e5bb93c50a9628069b84aebc7cdad2f4b33d8 Mon Sep 17 00:00:00 2001 From: kokke Date: Mon, 15 Dec 2014 21:17:45 +0100 Subject: Included test of CBC mode --- test.c | 128 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 114 insertions(+), 14 deletions(-) diff --git a/test.c b/test.c index e32fe44..947a211 100644 --- a/test.c +++ b/test.c @@ -1,25 +1,49 @@ #include #include #include + +// Enable both ECB and CBC mode. Note this can be done before including aes.h or at compile-time. +// E.g. with GCC by using the -D flag: gcc -c aes.c -DCBC=0 -DECB=1 +#define CBC 1 +#define ECB 1 + #include "aes.h" static void phex(uint8_t* str); -static void test_ECB(void); -static void test_decrypt(void); +static void test_encrypt_ecb(void); +static void test_decrypt_ecb(void); +static void test_encrypt_ecb_verbose(void); +static void test_encrypt_cbc(void); +static void test_decrypt_cbc(void); + int main(void) { - test_ECB(); - test_decrypt(); + test_encrypt_cbc(); + test_decrypt_cbc(); + test_decrypt_ecb(); + test_encrypt_ecb(); + test_encrypt_ecb_verbose(); + return 0; } -/* Helpers */ -static void test_ECB(void) +// prints string as hex +static void phex(uint8_t* str) +{ + unsigned char i; + for(i = 0; i < 16; ++i) + printf("%.2x", str[i]); + printf("\n"); +} + +static void test_encrypt_ecb_verbose(void) { + // Example of more verbose verification + uint8_t i, buf[64], buf2[64]; // 128bit key @@ -34,6 +58,7 @@ static void test_ECB(void) memset(buf2, 0, 64); // print text to encrypt, key and IV + printf("ECB encrypt verbose:\n\n"); printf("plain text:\n"); for(i = (uint8_t) 0; i < (uint8_t) 4; ++i) { @@ -55,17 +80,91 @@ static void test_ECB(void) printf("\n"); } -// prints string as hex -static void phex(uint8_t* str) + +static void test_encrypt_ecb(void) { - unsigned char i; - for(i = 0; i < 16; ++i) - printf("%.2x", str[i]); - printf("\n"); + uint8_t key[] = {0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c}; + uint8_t in[] = {0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a}; + uint8_t out[] = {0x3a, 0xd7, 0x7b, 0xb4, 0x0d, 0x7a, 0x36, 0x60, 0xa8, 0x9e, 0xca, 0xf3, 0x24, 0x66, 0xef, 0x97}; + uint8_t buffer[16]; + + AES128_ECB_encrypt(in, key, buffer); + + printf("ECB decrypt: "); + + if(0 == strncmp((char*) out, (char*) buffer, 16)) + { + printf("SUCCESS!\n"); + } + else + { + printf("FAILURE!\n"); + } } +static void test_decrypt_cbc(void) +{ + // Example "simulating" a smaller buffer... + + uint8_t key[] = { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c }; + uint8_t iv[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }; + uint8_t in[] = { 0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46, 0xce, 0xe9, 0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d, + 0x50, 0x86, 0xcb, 0x9b, 0x50, 0x72, 0x19, 0xee, 0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76, 0x78, 0xb2, + 0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b, 0x71, 0x16, 0xe6, 0x9e, 0x22, 0x22, 0x95, 0x16, + 0x3f, 0xf1, 0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09, 0x12, 0x0e, 0xca, 0x30, 0x75, 0x86, 0xe1, 0xa7 }; + uint8_t out[] = { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a, + 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, + 0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef, + 0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10 }; + uint8_t buffer[64]; + + AES128_CBC_decrypt_buffer(buffer+0, in+0, 16, key, iv); + AES128_CBC_decrypt_buffer(buffer+16, in+16, 16, key, 0); + AES128_CBC_decrypt_buffer(buffer+32, in+32, 16, key, 0); + AES128_CBC_decrypt_buffer(buffer+48, in+48, 16, key, 0); + + printf("CBC decrypt: "); + + if(0 == strncmp((char*) out, (char*) buffer, 64)) + { + printf("SUCCESS!\n"); + } + else + { + printf("FAILURE!\n"); + } +} -static void test_decrypt(void) +static void test_encrypt_cbc(void) +{ + uint8_t key[] = { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c }; + uint8_t iv[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }; + uint8_t in[] = { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a, + 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, + 0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef, + 0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10 }; + uint8_t out[] = { 0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46, 0xce, 0xe9, 0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d, + 0x50, 0x86, 0xcb, 0x9b, 0x50, 0x72, 0x19, 0xee, 0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76, 0x78, 0xb2, + 0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b, 0x71, 0x16, 0xe6, 0x9e, 0x22, 0x22, 0x95, 0x16, + 0x3f, 0xf1, 0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09, 0x12, 0x0e, 0xca, 0x30, 0x75, 0x86, 0xe1, 0xa7 }; + uint8_t buffer[64]; + + AES128_CBC_encrypt_buffer(buffer, in, 64, key, iv); + + printf("CBC encrypt: "); + + if(0 == strncmp((char*) out, (char*) buffer, 64)) + { + printf("SUCCESS!\n"); + } + else + { + printf("FAILURE!\n"); + } +} + + +static void test_decrypt_ecb(void) { uint8_t key[] = {0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c}; uint8_t in[] = {0x3a, 0xd7, 0x7b, 0xb4, 0x0d, 0x7a, 0x36, 0x60, 0xa8, 0x9e, 0xca, 0xf3, 0x24, 0x66, 0xef, 0x97}; @@ -74,7 +173,7 @@ static void test_decrypt(void) AES128_ECB_decrypt(in, key, buffer); - printf("decrypt: "); + printf("ECB decrypt: "); if(0 == strncmp((char*) out, (char*) buffer, 16)) { @@ -86,3 +185,4 @@ static void test_decrypt(void) } } + -- cgit v1.2.3