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[u/mdw/putty] / ssh.h

#include <string.h>

#define SSH_CIPHER_IDEA		1
#define SSH_CIPHER_DES		2
#define SSH_CIPHER_3DES		3
#define SSH_CIPHER_BLOWFISH	6

struct RSAKey {
    int bits;
    int bytes;
#ifdef MSCRYPTOAPI
    unsigned long exponent;
    unsigned char *modulus;
#else
    void *modulus;
    void *exponent;
#endif
};

int makekey(unsigned char *data, struct RSAKey *result,
	    unsigned char **keystr);
void rsaencrypt(unsigned char *data, int length, struct RSAKey *key);
int rsastr_len(struct RSAKey *key);
void rsastr_fmt(char *str, struct RSAKey *key);

typedef unsigned int word32;
typedef unsigned int uint32;

unsigned long crc32(const void *s, size_t len);

struct MD5Context {
#ifdef MSCRYPTOAPI
    unsigned long hHash;
#else
    uint32 buf[4];
    uint32 bits[2];
    unsigned char in[64];
#endif
};

void MD5Init(struct MD5Context *context);
void MD5Update(struct MD5Context *context, unsigned char const *buf,
               unsigned len);
void MD5Final(unsigned char digest[16], struct MD5Context *context);

struct ssh_cipher {
    void (*sesskey)(unsigned char *key);
    void (*encrypt)(unsigned char *blk, int len);
    void (*decrypt)(unsigned char *blk, int len);
};

#ifndef MSCRYPTOAPI
void SHATransform(word32 *digest, word32 *data);
#endif

int random_byte(void);
void random_add_noise(void *noise, int length);

void logevent (char *);