summaryrefslogtreecommitdiffstats
path: root/README.md
diff options
context:
space:
mode:
Diffstat (limited to 'README.md')
-rw-r--r--README.md12
1 files changed, 6 insertions, 6 deletions
diff --git a/README.md b/README.md
index e06cfdf..e32e25e 100644
--- a/README.md
+++ b/README.md
@@ -15,8 +15,8 @@ void AES_init_ctx_iv(struct AES_ctx* ctx, const uint8_t* key, const uint8_t* iv)
void AES_ctx_set_iv(struct AES_ctx* ctx, const uint8_t* iv);
/* Then start encrypting and decrypting with the functions below: */
-void AES_ECB_encrypt(struct AES_ctx* ctx, uint8_t* buf);
-void AES_ECB_decrypt(struct AES_ctx* ctx, uint8_t* buf);
+void AES_ECB_encrypt(const struct AES_ctx* ctx, uint8_t* buf);
+void AES_ECB_decrypt(const struct AES_ctx* ctx, uint8_t* buf);
void AES_CBC_encrypt_buffer(struct AES_ctx* ctx, uint8_t* buf, uint32_t length);
void AES_CBC_decrypt_buffer(struct AES_ctx* ctx, uint8_t* buf, uint32_t length);
@@ -47,21 +47,21 @@ GCC size output when only CTR mode is compiled for ARM:
$ arm-none-eabi-gcc -Os -DCBC=0 -DECB=0 -DCTR=1 -c aes.c
$ size aes.o
text data bss dec hex filename
- 1203 0 0 1203 4b3 aes.o
+ 1343 0 0 1343 53f aes.o
.. and when compiling for the THUMB instruction set, we end up just below 1K in code size.
$ arm-none-eabi-gcc -Os -mthumb -DCBC=0 -DECB=0 -DCTR=1 -c aes.c
$ size aes.o
text data bss dec hex filename
- 955 0 0 955 3bb aes.o
+ 979 0 0 979 3d3 aes.o
I am using the Free Software Foundation, ARM GCC compiler:
$ arm-none-eabi-gcc --version
- arm-none-eabi-gcc (4.8.4-1+11-1) 4.8.4 20141219 (release)
- Copyright (C) 2013 Free Software Foundation, Inc.
+ arm-none-eabi-gcc (GNU Tools for Arm Embedded Processors 8-2018-q4-major) 8.2.1 20181213 (release)
+ Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.