* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-/* RCSID("$OpenBSD: cipher.h,v 1.27 2001/06/26 06:32:49 itojun Exp $"); */
+/* RCSID("$OpenBSD: cipher.h,v 1.30 2002/02/14 23:41:01 markus Exp $"); */
#ifndef CIPHER_H
#define CIPHER_H
#define SSH_CIPHER_RESERVED 7
#define SSH_CIPHER_MAX 31
+#define CIPHER_ENCRYPT 1
+#define CIPHER_DECRYPT 0
+
typedef struct Cipher Cipher;
typedef struct CipherContext CipherContext;
+struct Cipher;
struct CipherContext {
union {
struct {
u_char iv[8];
} cast;
struct {
- u4byte iv[4];
+ u_char iv[16];
rijndael_ctx enc;
rijndael_ctx dec;
} rijndael;
RC4_KEY rc4;
} u;
+ int plaintext;
+ int encrypt;
Cipher *cipher;
};
-struct Cipher {
- char *name;
- int number; /* for ssh1 only */
- u_int block_size;
- u_int key_len;
- void (*setkey)(CipherContext *, const u_char *, u_int);
- void (*setiv)(CipherContext *, const u_char *, u_int);
- void (*encrypt)(CipherContext *, u_char *, const u_char *, u_int);
- void (*decrypt)(CipherContext *, u_char *, const u_char *, u_int);
-};
-
-u_int cipher_mask_ssh1(int);
-Cipher *cipher_by_name(const char *);
-Cipher *cipher_by_number(int);
-int cipher_number(const char *);
-char *cipher_name(int);
-int ciphers_valid(const char *);
-void cipher_init(CipherContext *, Cipher *, const u_char *, u_int,
- const u_char *, u_int);
-void cipher_encrypt(CipherContext *, u_char *, const u_char *, u_int);
-void cipher_decrypt(CipherContext *, u_char *, const u_char *, u_int);
-void cipher_set_key_string(CipherContext *, Cipher *, const char *);
+u_int cipher_mask_ssh1(int);
+Cipher *cipher_by_name(const char *);
+Cipher *cipher_by_number(int);
+int cipher_number(const char *);
+char *cipher_name(int);
+int ciphers_valid(const char *);
+void cipher_init(CipherContext *, Cipher *, const u_char *, u_int,
+ const u_char *, u_int, int);
+void cipher_crypt(CipherContext *, u_char *, const u_char *, u_int);
+void cipher_cleanup(CipherContext *);
+void cipher_set_key_string(CipherContext *, Cipher *, const char *, int);
+u_int cipher_blocksize(Cipher *);
+u_int cipher_keylen(Cipher *);
#endif /* CIPHER_H */