1 files changed, 46 insertions, 0 deletions
diff --git a/src/protocol/internal/ssh_cipher.h b/src/protocol/internal/ssh_cipher.h
new file mode 100644
index 0000000..ec51062
--- /dev/null
+++ b/src/protocol/internal/ssh_cipher.h
@@ -0,0 +1,46 @@
+#ifndef SSH_CIPHER_H
+#define SSH_CIPHER_H
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <openssl/evp.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+	typedef struct ssh_cipher_t SSH_CIPHER;
+	typedef int (*crypt_t)(SSH_CIPHER*, const uint8_t*, uint8_t*, size_t);
+	typedef int (*init_t)(SSH_CIPHER*);
+	typedef void (*cleanup_t)(SSH_CIPHER*);
+
+	struct ssh_cipher_t
+	{
+		/*
+		 * priv is used for things like EVP_CIPHER_CTX and EVP_CIPHER
+		 *
+		 * We use only one crypt function for encrypt or decrypt.
+		 *
+		 * Before using the crypto function, IV and key must
+		 * be set and then init function must be called
+		 */
+		unsigned char *IV;
+		unsigned char *key;
+		void *priv;
+		crypt_t crypt;
+		init_t init;
+		cleanup_t cleanup;
+		size_t blkSize;
+		size_t keySize;
+		size_t IVSize;
+	};
+
+	typedef const EVP_CIPHER*(*SSH_EVP)(void);
+	SSH_CIPHER* new_ssh_cipher_evp(SSH_EVP, size_t key, size_t iv, size_t blk, int enc);
+	SSH_CIPHER* new_3des_ssh1(int);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif