diff options
Diffstat (limited to 'cipher.h')
| -rw-r--r-- | cipher.h | 97 |
1 files changed, 50 insertions, 47 deletions
@@ -1,17 +1,17 @@ /* - -cipher.h - -Author: Tatu Ylonen <ylo@cs.hut.fi> - -Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland - All rights reserved - -Created: Wed Apr 19 16:50:42 1995 ylo - -*/ - -/* RCSID("$Id: cipher.h,v 1.3 1999/11/16 02:37:16 damien Exp $"); */ + * + * cipher.h + * + * Author: Tatu Ylonen <ylo@cs.hut.fi> + * + * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland + * All rights reserved + * + * Created: Wed Apr 19 16:50:42 1995 ylo + * + */ + +/* RCSID("$Id: cipher.h,v 1.4 1999/11/24 13:26:22 damien Exp $"); */ #ifndef CIPHER_H #define CIPHER_H @@ -29,32 +29,31 @@ Created: Wed Apr 19 16:50:42 1995 ylo /* Cipher types. New types can be added, but old types should not be removed for compatibility. The maximum allowed value is 31. */ -#define SSH_CIPHER_NOT_SET -1 /* None selected (invalid number). */ -#define SSH_CIPHER_NONE 0 /* no encryption */ -#define SSH_CIPHER_IDEA 1 /* IDEA CFB */ -#define SSH_CIPHER_DES 2 /* DES CBC */ -#define SSH_CIPHER_3DES 3 /* 3DES CBC */ -#define SSH_CIPHER_BROKEN_TSS 4 /* TRI's Simple Stream encryption CBC */ -#define SSH_CIPHER_BROKEN_RC4 5 /* Alleged RC4 */ +#define SSH_CIPHER_NOT_SET -1 /* None selected (invalid number). */ +#define SSH_CIPHER_NONE 0 /* no encryption */ +#define SSH_CIPHER_IDEA 1 /* IDEA CFB */ +#define SSH_CIPHER_DES 2 /* DES CBC */ +#define SSH_CIPHER_3DES 3 /* 3DES CBC */ +#define SSH_CIPHER_BROKEN_TSS 4 /* TRI's Simple Stream encryption CBC */ +#define SSH_CIPHER_BROKEN_RC4 5 /* Alleged RC4 */ #define SSH_CIPHER_BLOWFISH 6 typedef struct { - unsigned int type; - union { - struct { - des_key_schedule key1; - des_key_schedule key2; - des_cblock iv2; - des_key_schedule key3; - des_cblock iv3; - } des3; - struct { - struct bf_key_st key; - unsigned char iv[8]; - } bf; - } u; -} CipherContext; - + unsigned int type; + union { + struct { + des_key_schedule key1; + des_key_schedule key2; + des_cblock iv2; + des_key_schedule key3; + des_cblock iv3; + } des3; + struct { + struct bf_key_st key; + unsigned char iv[8]; + } bf; + } u; +} CipherContext; /* Returns a bit mask indicating which ciphers are supported by this implementation. The bit mask has the corresponding bit set of each supported cipher. */ @@ -65,28 +64,32 @@ const char *cipher_name(int cipher); /* Parses the name of the cipher. Returns the number of the corresponding cipher, or -1 on error. */ -int cipher_number(const char *name); +int cipher_number(const char *name); /* Selects the cipher to use and sets the key. If for_encryption is true, the key is setup for encryption; otherwise it is setup for decryption. */ -void cipher_set_key(CipherContext *context, int cipher, - const unsigned char *key, int keylen, int for_encryption); +void +cipher_set_key(CipherContext * context, int cipher, + const unsigned char *key, int keylen, int for_encryption); /* Sets key for the cipher by computing the MD5 checksum of the passphrase, and using the resulting 16 bytes as the key. */ -void cipher_set_key_string(CipherContext *context, int cipher, - const char *passphrase, int for_encryption); +void +cipher_set_key_string(CipherContext * context, int cipher, + const char *passphrase, int for_encryption); /* Encrypts data using the cipher. */ -void cipher_encrypt(CipherContext *context, unsigned char *dest, - const unsigned char *src, unsigned int len); +void +cipher_encrypt(CipherContext * context, unsigned char *dest, + const unsigned char *src, unsigned int len); /* Decrypts data using the cipher. */ -void cipher_decrypt(CipherContext *context, unsigned char *dest, - const unsigned char *src, unsigned int len); +void +cipher_decrypt(CipherContext * context, unsigned char *dest, + const unsigned char *src, unsigned int len); /* If and CRC-32 attack is detected this function is called. Defaults * to fatal, changed to packet_disconnect in sshd and ssh. */ -extern void (*cipher_attack_detected)(const char *fmt, ...); +extern void (*cipher_attack_detected) (const char *fmt,...); -#endif /* CIPHER_H */ +#endif /* CIPHER_H */ |