#include <string.h>
+#include "puttymem.h"
+
/*
* Useful thing.
*/
#define APIEXTRA 0
#endif
+#ifndef BIGNUM_INTERNAL
+typedef void *Bignum;
+#endif
+
struct RSAKey {
int bits;
int bytes;
unsigned long exponent;
unsigned char *modulus;
#else
- void *modulus;
- void *exponent;
+ Bignum modulus;
+ Bignum exponent;
+ Bignum private_exponent;
+ Bignum p;
+ Bignum q;
+ Bignum iqmp;
#endif
+ char *comment;
};
int makekey(unsigned char *data, struct RSAKey *result,
- unsigned char **keystr);
+ unsigned char **keystr, int order);
+int makeprivate(unsigned char *data, struct RSAKey *result);
void rsaencrypt(unsigned char *data, int length, struct RSAKey *key);
+Bignum rsadecrypt(Bignum input, struct RSAKey *key);
+void rsasign(unsigned char *data, int length, struct RSAKey *key);
+void rsasanitise(struct RSAKey *key);
int rsastr_len(struct RSAKey *key);
void rsastr_fmt(char *str, struct RSAKey *key);
+void rsa_fingerprint(char *str, int len, struct RSAKey *key);
+void freersakey(struct RSAKey *key);
typedef unsigned int word32;
typedef unsigned int uint32;
void SHA_Init(SHA_State *s);
void SHA_Bytes(SHA_State *s, void *p, int len);
void SHA_Final(SHA_State *s, unsigned char *output);
+void SHA_Simple(void *p, int len, unsigned char *output);
struct ssh_cipher {
- void (*sesskey)(unsigned char *key);
+ void (*sesskey)(unsigned char *key); /* for ssh 1 */
+ void (*encrypt)(unsigned char *blk, int len);
+ void (*decrypt)(unsigned char *blk, int len);
+ int blksize;
+};
+
+struct ssh2_cipher {
+ void (*setcsiv)(unsigned char *key); /* for ssh 2 */
+ void (*setcskey)(unsigned char *key); /* for ssh 2 */
+ void (*setsciv)(unsigned char *key); /* for ssh 2 */
+ void (*setsckey)(unsigned char *key); /* for ssh 2 */
void (*encrypt)(unsigned char *blk, int len);
void (*decrypt)(unsigned char *blk, int len);
char *name;
int blksize;
+ int keylen;
+};
+
+struct ssh2_ciphers {
+ int nciphers;
+ const struct ssh2_cipher *const *list;
};
struct ssh_mac {
- void (*sesskey)(unsigned char *key, int len);
+ void (*setcskey)(unsigned char *key);
+ void (*setsckey)(unsigned char *key);
void (*generate)(unsigned char *blk, int len, unsigned long seq);
int (*verify)(unsigned char *blk, int len, unsigned long seq);
char *name;
};
struct ssh_kex {
+ /*
+ * Plugging in another KEX algorithm requires structural chaos,
+ * so it's hard to abstract them into nice little structures
+ * like this. Hence, for the moment, this is just a
+ * placeholder. I claim justification in the fact that OpenSSH
+ * does this too :-)
+ */
char *name;
};
-struct ssh_hostkey {
+struct ssh_signkey {
+ void *(*newkey)(char *data, int len);
+ void (*freekey)(void *key);
+ char *(*fmtkey)(void *key);
+ unsigned char *(*public_blob)(void *key, int *len);
+ unsigned char *(*private_blob)(void *key, int *len);
+ void *(*createkey)(unsigned char *pub_blob, int pub_len,
+ unsigned char *priv_blob, int priv_len);
+ void *(*openssh_createkey)(unsigned char **blob, int *len);
+ char *(*fingerprint)(void *key);
+ int (*verifysig)(void *key, char *sig, int siglen,
+ char *data, int datalen);
+ unsigned char *(*sign)(void *key, char *data, int datalen, int *siglen);
char *name;
+ char *keytype; /* for host key cache */
};
struct ssh_compress {
char *name;
+ void (*compress_init)(void);
+ int (*compress)(unsigned char *block, int len,
+ unsigned char **outblock, int *outlen);
+ void (*decompress_init)(void);
+ int (*decompress)(unsigned char *block, int len,
+ unsigned char **outblock, int *outlen);
};
+struct ssh2_userkey {
+ const struct ssh_signkey *alg; /* the key algorithm */
+ void *data; /* the key data */
+ char *comment; /* the key comment */
+};
+
+extern const struct ssh_cipher ssh_3des;
+extern const struct ssh_cipher ssh_des;
+extern const struct ssh_cipher ssh_blowfish_ssh1;
+extern const struct ssh2_ciphers ssh2_3des;
+extern const struct ssh2_ciphers ssh2_aes;
+extern const struct ssh2_ciphers ssh2_blowfish;
+extern const struct ssh_kex ssh_diffiehellman;
+extern const struct ssh_kex ssh_diffiehellman_gex;
+extern const struct ssh_signkey ssh_dss;
+extern const struct ssh_signkey ssh_rsa;
+extern const struct ssh_mac ssh_md5;
+extern const struct ssh_mac ssh_sha1;
+extern const struct ssh_mac ssh_sha1_buggy;
+
#ifndef MSCRYPTOAPI
void SHATransform(word32 *digest, word32 *data);
#endif
int random_byte(void);
void random_add_noise(void *noise, int length);
+void random_add_heavynoise(void *noise, int length);
void logevent (char *);
-/*
- * A Bignum is stored as a sequence of `unsigned short' words. The
- * first tells how many remain; the remaining ones are digits, LS
- * first.
- */
-typedef unsigned short *Bignum;
-
-Bignum newbn(int length);
+Bignum copybn(Bignum b);
+Bignum bn_power_2(int n);
+void bn_restore_invariant(Bignum b);
+Bignum bignum_from_short(unsigned short n);
void freebn(Bignum b);
-void modpow(Bignum base, Bignum exp, Bignum mod, Bignum result);
+Bignum modpow(Bignum base, Bignum exp, Bignum mod);
+Bignum modmul(Bignum a, Bignum b, Bignum mod);
+void decbn(Bignum n);
+extern Bignum Zero, One;
+Bignum bignum_from_bytes(unsigned char *data, int nbytes);
+int ssh1_read_bignum(unsigned char *data, Bignum *result);
+int ssh1_bignum_bitcount(Bignum bn);
+int ssh1_bignum_length(Bignum bn);
+int bignum_byte(Bignum bn, int i);
+int bignum_bit(Bignum bn, int i);
+void bignum_set_bit(Bignum bn, int i, int value);
+int ssh1_write_bignum(void *data, Bignum bn);
+Bignum biggcd(Bignum a, Bignum b);
+unsigned short bignum_mod_short(Bignum number, unsigned short modulus);
+Bignum bignum_add_long(Bignum number, unsigned long addend);
+Bignum bigmul(Bignum a, Bignum b);
+Bignum modinv(Bignum number, Bignum modulus);
+Bignum bignum_bitmask(Bignum number);
+Bignum bignum_rshift(Bignum number, int shift);
+int bignum_cmp(Bignum a, Bignum b);
+char *bignum_decimal(Bignum x);
+void dh_setup_group1(void);
+void dh_setup_group(Bignum pval, Bignum gval);
+void dh_cleanup(void);
Bignum dh_create_e(void);
Bignum dh_find_K(Bignum f);
+
+int loadrsakey(char *filename, struct RSAKey *key, char *passphrase);
+int rsakey_encrypted(char *filename, char **comment);
+
+int saversakey(char *filename, struct RSAKey *key, char *passphrase);
+
+void base64_encode_atom(unsigned char *data, int n, char *out);
+
+/* ssh2_load_userkey can return this as an error */
+extern struct ssh2_userkey ssh2_wrong_passphrase;
+#define SSH2_WRONG_PASSPHRASE (&ssh2_wrong_passphrase)
+
+int ssh2_userkey_encrypted(char *filename, char **comment);
+struct ssh2_userkey *ssh2_load_userkey(char *filename, char *passphrase);
+char *ssh2_userkey_loadpub(char *filename, char **algorithm, int *pub_blob_len);
+int ssh2_save_userkey(char *filename, struct ssh2_userkey *key, char *passphrase);
+
+int keyfile_version(char *filename);
+
+void des3_decrypt_pubkey(unsigned char *key, unsigned char *blk, int len);
+void des3_encrypt_pubkey(unsigned char *key, unsigned char *blk, int len);
+void aes256_encrypt_pubkey(unsigned char *key, unsigned char *blk, int len);
+void aes256_decrypt_pubkey(unsigned char *key, unsigned char *blk, int len);
+
+/*
+ * For progress updates in the key generation utility.
+ */
+typedef void (*progfn_t)(void *param, int phase, int progress);
+
+int rsa_generate(struct RSAKey *key, int bits, progfn_t pfn, void *pfnparam);
+Bignum primegen(int bits, int modulus, int residue,
+ int phase, progfn_t pfn, void *pfnparam);
+
+/*
+ * zlib compression.
+ */
+void zlib_compress_init(void);
+void zlib_decompress_init(void);
+int zlib_compress_block(unsigned char *block, int len,
+ unsigned char **outblock, int *outlen);
+int zlib_decompress_block(unsigned char *block, int len,
+ unsigned char **outblock, int *outlen);
+
+/*
+ * SSH1 agent messages.
+ */
+#define SSH1_AGENTC_REQUEST_RSA_IDENTITIES 1
+#define SSH1_AGENT_RSA_IDENTITIES_ANSWER 2
+#define SSH1_AGENTC_RSA_CHALLENGE 3
+#define SSH1_AGENT_RSA_RESPONSE 4
+#define SSH1_AGENTC_ADD_RSA_IDENTITY 7
+#define SSH1_AGENTC_REMOVE_RSA_IDENTITY 8
+#define SSH1_AGENTC_REMOVE_ALL_RSA_IDENTITIES 9 /* openssh private? */
+
+/*
+ * Messages common to SSH1 and OpenSSH's SSH2.
+ */
+#define SSH_AGENT_FAILURE 5
+#define SSH_AGENT_SUCCESS 6
+
+/*
+ * OpenSSH's SSH2 agent messages.
+ */
+#define SSH2_AGENTC_REQUEST_IDENTITIES 11
+#define SSH2_AGENT_IDENTITIES_ANSWER 12
+#define SSH2_AGENTC_SIGN_REQUEST 13
+#define SSH2_AGENT_SIGN_RESPONSE 14
+#define SSH2_AGENTC_ADD_IDENTITY 17
+#define SSH2_AGENTC_REMOVE_IDENTITY 18
+#define SSH2_AGENTC_REMOVE_ALL_IDENTITIES 19
projects / u / mdw / putty / blobdiff