From bfd5cc90bcd3221ec17e5e8675ff771ffb54168e Mon Sep 17 00:00:00 2001 From: kokke Date: Fri, 1 Dec 2017 01:39:34 +0100 Subject: Update aes.c --- aes.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/aes.c b/aes.c index 32f3552..c15895e 100644 --- a/aes.c +++ b/aes.c @@ -600,11 +600,12 @@ void AES_CBC_decrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, co #if defined(CTR) && (CTR == 1) -void AES_CTR_xcrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv) +/* Symmetrical operation: same function for encrypting as for decrypting. Note any IV/nonce should never be reused with the same key */ +void AES_CTR_xcrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* nonce) { uint8_t buffer[BLOCKLEN], counter[BLOCKLEN]; - memcpy(counter, iv, BLOCKLEN); + memcpy(counter, nonce, BLOCKLEN); Key = key; KeyExpansion(); -- cgit v1.2.3