1 files changed, 50 insertions, 0 deletions
diff --git a/srtp/crypto/include/aes_cbc.h b/srtp/crypto/include/aes_cbc.h
new file mode 100644
index 0000000..9fb6682
--- /dev/null
+++ b/srtp/crypto/include/aes_cbc.h
@@ -0,0 +1,50 @@
+/*
+ * aes_cbc.h
+ *
+ * Header for AES Cipher Blobk Chaining Mode.
+ *
+ * David A. McGrew
+ * Cisco Systems, Inc.
+ *
+ */
+
+#ifndef AES_CBC_H
+#define AES_CBC_H
+
+#include "aes.h"
+#include "cipher.h"
+
+typedef struct {
+  v128_t   state;                  /* cipher chaining state            */
+  v128_t   previous;               /* previous ciphertext block        */
+  aes_expanded_key_t expanded_key; /* the cipher key                   */
+} aes_cbc_ctx_t;
+
+err_status_t
+aes_cbc_set_key(aes_cbc_ctx_t *c,
+		const unsigned char *key); 
+
+err_status_t
+aes_cbc_encrypt(aes_cbc_ctx_t *c, 
+		unsigned char *buf, 
+		unsigned int  *bytes_in_data);
+
+err_status_t
+aes_cbc_context_init(aes_cbc_ctx_t *c, const uint8_t *key, 
+		     cipher_direction_t dir);
+
+err_status_t
+aes_cbc_set_iv(aes_cbc_ctx_t *c, void *iv);
+
+err_status_t
+aes_cbc_nist_encrypt(aes_cbc_ctx_t *c,
+		     unsigned char *data, 
+		     unsigned int *bytes_in_data);
+
+err_status_t
+aes_cbc_nist_decrypt(aes_cbc_ctx_t *c,
+		     unsigned char *data, 
+		     unsigned int *bytes_in_data);
+
+#endif /* AES_CBC_H */
+