From 2fe678653b7dd9f61dbbcd5e7d862360882bd7e8 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Thu, 29 May 2014 05:00:11 +0200 Subject: Document *everything* --- src/crypto/cipher/aes128_ctr/openssl/aes128_ctr_openssl.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'src/crypto/cipher/aes128_ctr/openssl/aes128_ctr_openssl.c') diff --git a/src/crypto/cipher/aes128_ctr/openssl/aes128_ctr_openssl.c b/src/crypto/cipher/aes128_ctr/openssl/aes128_ctr_openssl.c index b47be57..2e06763 100644 --- a/src/crypto/cipher/aes128_ctr/openssl/aes128_ctr_openssl.c +++ b/src/crypto/cipher/aes128_ctr/openssl/aes128_ctr_openssl.c @@ -23,17 +23,25 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +/** + \file + + The aes128-ctr implementation from OpenSSL +*/ + #include "../../../../crypto.h" #include +/** The cipher state containing the OpenSSL cipher context */ struct fastd_cipher_state { - EVP_CIPHER_CTX *aes; + EVP_CIPHER_CTX *aes; /**< The OpenSSL cipher context */ }; +/** Initializes the cipher state */ static fastd_cipher_state_t* aes128_ctr_init(const uint8_t *key) { fastd_cipher_state_t *state = malloc(sizeof(fastd_cipher_state_t)); @@ -43,6 +51,7 @@ static fastd_cipher_state_t* aes128_ctr_init(const uint8_t *key) { return state; } +/** XORs data with the aes128-ctr cipher stream */ static bool aes128_ctr_crypt(const fastd_cipher_state_t *state, fastd_block128_t *out, const fastd_block128_t *in, size_t len, const uint8_t *iv) { int clen, clen2; @@ -61,6 +70,7 @@ static bool aes128_ctr_crypt(const fastd_cipher_state_t *state, fastd_block128_t return true; } +/** Frees the cipher state */ static void aes128_ctr_free(fastd_cipher_state_t *state) { if (state) { EVP_CIPHER_CTX_free(state->aes); @@ -68,6 +78,8 @@ static void aes128_ctr_free(fastd_cipher_state_t *state) { } } + +/** The openssl aes128-ctr implementation */ const fastd_cipher_t fastd_cipher_aes128_ctr_openssl = { .available = fastd_true, -- cgit v1.2.3