diff options
| -rw-r--r-- | README.md | 6 | ||||
| -rw-r--r-- | test.c | 8 |
2 files changed, 8 insertions, 6 deletions
@@ -13,10 +13,11 @@ void AES128_CBC_decrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, You can choose to use one or both of the modes-of-operation, by defining the symbols CBC and ECB. See the header file for clarification. -The module uses around 200 bytes of RAM and 2.5K ROM when compiled for ARM (~2K for Thumb but YMMV). +There is no built-in error checking or protection from out-of-bounds memory access errors as a result of malicious input. The two functions AES128_ECB_xxcrypt() do most of the work, and they expect inputs of 128 bit length. -It is the smallest implementation in C I've seen yet, but do contact me if you know of something smaller (or have improvements to the code here). +The module uses around 200 bytes of RAM and 2.5K ROM when compiled for ARM (~2K for Thumb but YMMV). +It is one of the smallest implementation in C I've seen yet, but do contact me if you know of something smaller (or have improvements to the code here). I've successfully used the code on 64bit x86, 32bit ARM and 8 bit AVR platforms. @@ -61,3 +62,4 @@ This implementation is verified against the data in: All material in this repository is in the public domain. +I am a bit slow to react to pull requests and issues, but I have an ambition to go through all issues sometime in the future and release a stable version. @@ -92,7 +92,7 @@ static void test_encrypt_ecb(void) printf("ECB decrypt: "); - if(0 == strncmp((char*) out, (char*) buffer, 16)) + if(0 == memcmp((char*) out, (char*) buffer, 16)) { printf("SUCCESS!\n"); } @@ -125,7 +125,7 @@ static void test_decrypt_cbc(void) printf("CBC decrypt: "); - if(0 == strncmp((char*) out, (char*) buffer, 64)) + if(0 == memcmp((char*) out, (char*) buffer, 64)) { printf("SUCCESS!\n"); } @@ -153,7 +153,7 @@ static void test_encrypt_cbc(void) printf("CBC encrypt: "); - if(0 == strncmp((char*) out, (char*) buffer, 64)) + if(0 == memcmp((char*) out, (char*) buffer, 64)) { printf("SUCCESS!\n"); } @@ -175,7 +175,7 @@ static void test_decrypt_ecb(void) printf("ECB decrypt: "); - if(0 == strncmp((char*) out, (char*) buffer, 16)) + if(0 == memcmp((char*) out, (char*) buffer, 16)) { printf("SUCCESS!\n"); } |