+++ /dev/null
-#error "This file is no longer part of PuTTY, it will not compile."
-#define _WIN32_WINNT 0x0400
-#include <windows.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <wincrypt.h>
-#include "ssh.h"
-
-void fatalbox(char *fmt, ...);
-
-static HCRYPTKEY create_des_key(unsigned char *key);
-
-
-HCRYPTPROV hCryptProv;
-HCRYPTKEY hDESKey[2][3] = { {0, 0, 0}, {0, 0, 0} }; /* global for now */
-
-
-/* use Microsoft Enhanced Cryptographic Service Provider */
-#define CSP MS_ENHANCED_PROV
-
-
-static BYTE PrivateKeyWithExponentOfOne[] = {
- 0x07, 0x02, 0x00, 0x00, 0x00, 0xA4, 0x00, 0x00,
- 0x52, 0x53, 0x41, 0x32, 0x00, 0x02, 0x00, 0x00,
- 0x01, 0x00, 0x00, 0x00, 0xAB, 0xEF, 0xFA, 0xC6,
- 0x7D, 0xE8, 0xDE, 0xFB, 0x68, 0x38, 0x09, 0x92,
- 0xD9, 0x42, 0x7E, 0x6B, 0x89, 0x9E, 0x21, 0xD7,
- 0x52, 0x1C, 0x99, 0x3C, 0x17, 0x48, 0x4E, 0x3A,
- 0x44, 0x02, 0xF2, 0xFA, 0x74, 0x57, 0xDA, 0xE4,
- 0xD3, 0xC0, 0x35, 0x67, 0xFA, 0x6E, 0xDF, 0x78,
- 0x4C, 0x75, 0x35, 0x1C, 0xA0, 0x74, 0x49, 0xE3,
- 0x20, 0x13, 0x71, 0x35, 0x65, 0xDF, 0x12, 0x20,
- 0xF5, 0xF5, 0xF5, 0xC1, 0xED, 0x5C, 0x91, 0x36,
- 0x75, 0xB0, 0xA9, 0x9C, 0x04, 0xDB, 0x0C, 0x8C,
- 0xBF, 0x99, 0x75, 0x13, 0x7E, 0x87, 0x80, 0x4B,
- 0x71, 0x94, 0xB8, 0x00, 0xA0, 0x7D, 0xB7, 0x53,
- 0xDD, 0x20, 0x63, 0xEE, 0xF7, 0x83, 0x41, 0xFE,
- 0x16, 0xA7, 0x6E, 0xDF, 0x21, 0x7D, 0x76, 0xC0,
- 0x85, 0xD5, 0x65, 0x7F, 0x00, 0x23, 0x57, 0x45,
- 0x52, 0x02, 0x9D, 0xEA, 0x69, 0xAC, 0x1F, 0xFD,
- 0x3F, 0x8C, 0x4A, 0xD0,
-
- 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-
- 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-
- 0x64, 0xD5, 0xAA, 0xB1,
- 0xA6, 0x03, 0x18, 0x92, 0x03, 0xAA, 0x31, 0x2E,
- 0x48, 0x4B, 0x65, 0x20, 0x99, 0xCD, 0xC6, 0x0C,
- 0x15, 0x0C, 0xBF, 0x3E, 0xFF, 0x78, 0x95, 0x67,
- 0xB1, 0x74, 0x5B, 0x60,
-
- 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-};
-
-
-
-/* ---------------------------------------------------------*
- * Utility functions *
- * ---------------------------------------------------------*/
-
-
-int crypto_startup()
-{
- if (CryptAcquireContext(&hCryptProv, "Putty", CSP, PROV_RSA_FULL,
- CRYPT_NEWKEYSET) == 0) {
- if (GetLastError() == NTE_EXISTS) {
- if (CryptAcquireContext(&hCryptProv, "Putty", CSP,
- PROV_RSA_FULL, 0) == 0) {
- return FALSE; /* failed to acquire context - probably
- * don't have high encryption installed! */
- }
- } else
- return FALSE; /* failed to acquire context - probably
- * don't have high encryption installed! */
- }
- return TRUE;
-}
-
-
-void crypto_wrapup()
-{
- int i, j;
- for (i = 0; i < 2; i++) {
- for (j = 0; j < 3; j++) {
- if (hDESKey[i][j])
- CryptDestroyKey(hDESKey[i][j]);
- hDESKey[i][j] = 0;
- }
- }
- if (hCryptProv)
- CryptReleaseContext(hCryptProv, 0);
- hCryptProv = 0;
-}
-
-
-/* ---------------------------------------------------------*
- * Random number functions *
- * ---------------------------------------------------------*/
-
-int random_byte(void)
-{
- unsigned char b;
- if (!CryptGenRandom(hCryptProv, 1, &b))
- fatalbox("random number generator failure!");
- return b;
-}
-
-void random_add_noise(void *noise, int length)
-{
- /* do nothing */
-}
-void random_init(void)
-{
- /* do nothing */
-}
-void random_get_savedata(void **data, int *len)
-{
- /* do nothing */
-}
-void noise_get_heavy(void (*func) (void *, int))
-{
- /* do nothing */
-}
-void noise_get_light(void (*func) (void *, int))
-{
- /* do nothing */
-}
-void noise_ultralight(DWORD data)
-{
- /* do nothing */
-}
-void random_save_seed(void)
-{
- /* do nothing */
-}
-
-
-/* ---------------------------------------------------------*
- * MD5 hash functions *
- * ---------------------------------------------------------*/
-
-
-void MD5Init(struct MD5Context *ctx)
-{
- if (!CryptCreateHash(hCryptProv, CALG_MD5, 0, 0, &ctx->hHash))
- fatalbox("Error during CryptBeginHash!\n");
-}
-
-
-void MD5Update(struct MD5Context *ctx,
- unsigned char const *buf, unsigned len)
-{
- if (CryptHashData(ctx->hHash, buf, len, 0) == 0)
- fatalbox("Error during CryptHashSessionKey!\n");
-}
-
-
-void MD5Final(unsigned char digest[16], struct MD5Context *ctx)
-{
- DWORD cb = 16;
- if (CryptGetHashParam(ctx->hHash, HP_HASHVAL, digest, &cb, 0) == 0)
- fatalbox("Error during CryptGetHashParam!\n");
- if (ctx->hHash)
- CryptDestroyHash(ctx->hHash);
- ctx->hHash = 0;
-}
-
-
-/* ---------------------------------------------------------*
- * RSA public key functions *
- * ---------------------------------------------------------*/
-
-int makekey(unsigned char *data, struct RSAKey *result,
- unsigned char **keystr)
-{
-
- unsigned char *p = data;
- int i;
- int w, b;
-
- /* get size (bits) of modulus */
- result->bits = 0;
- for (i = 0; i < 4; i++)
- result->bits = (result->bits << 8) + *p++;
-
- /* get size (bits) of public exponent */
- w = 0;
- for (i = 0; i < 2; i++)
- w = (w << 8) + *p++;
- b = (w + 7) / 8; /* bits -> bytes */
-
- /* convert exponent to DWORD */
- result->exponent = 0;
- for (i = 0; i < b; i++)
- result->exponent = (result->exponent << 8) + *p++;
-
- /* get size (bits) of modulus */
- w = 0;
- for (i = 0; i < 2; i++)
- w = (w << 8) + *p++;
- result->bytes = b = (w + 7) / 8; /* bits -> bytes */
-
- /* allocate buffer for modulus & copy it */
- result->modulus = malloc(b);
- memcpy(result->modulus, p, b);
-
- /* update callers pointer */
- if (keystr)
- *keystr = p; /* point at key string, second time */
-
- return (p - data) + b;
-}
-
-
-void rsaencrypt(unsigned char *data, int length, struct RSAKey *rsakey)
-{
-
- int i;
- unsigned char *pKeybuf, *pKeyin;
- HCRYPTKEY hRsaKey;
- PUBLICKEYSTRUC *pBlob;
- RSAPUBKEY *pRPK;
- unsigned char *buf;
- DWORD dlen;
- DWORD bufsize;
-
- /* allocate buffer for public key blob */
- if ((pBlob = malloc(sizeof(PUBLICKEYSTRUC) + sizeof(RSAPUBKEY) +
- rsakey->bytes)) == NULL)
- fatalbox("Out of memory");
-
- /* allocate buffer for message encryption block */
- bufsize = (length + rsakey->bytes) << 1;
- if ((buf = malloc(bufsize)) == NULL)
- fatalbox("Out of memory");
-
- /* construct public key blob from host public key */
- pKeybuf = ((unsigned char *) pBlob) + sizeof(PUBLICKEYSTRUC) +
- sizeof(RSAPUBKEY);
- pKeyin = ((unsigned char *) rsakey->modulus);
- /* change big endian to little endian */
- for (i = 0; i < rsakey->bytes; i++)
- pKeybuf[i] = pKeyin[rsakey->bytes - i - 1];
- pBlob->bType = PUBLICKEYBLOB;
- pBlob->bVersion = 0x02;
- pBlob->reserved = 0;
- pBlob->aiKeyAlg = CALG_RSA_KEYX;
- pRPK =
- (RSAPUBKEY *) (((unsigned char *) pBlob) + sizeof(PUBLICKEYSTRUC));
- pRPK->magic = 0x31415352; /* "RSA1" */
- pRPK->bitlen = rsakey->bits;
- pRPK->pubexp = rsakey->exponent;
-
- /* import public key blob into key container */
- if (CryptImportKey(hCryptProv, (void *) pBlob,
- sizeof(PUBLICKEYSTRUC) + sizeof(RSAPUBKEY) +
- rsakey->bytes, 0, 0, &hRsaKey) == 0)
- fatalbox("Error importing RSA key!");
-
- /* copy message into buffer */
- memcpy(buf, data, length);
- dlen = length;
-
- /* using host public key, encrypt the message */
- if (CryptEncrypt(hRsaKey, 0, TRUE, 0, buf, &dlen, bufsize) == 0)
- fatalbox("Error encrypting using RSA key!");
-
- /*
- * For some strange reason, Microsoft CryptEncrypt using public
- * key, returns the cyphertext in backwards (little endian)
- * order, so reverse it!
- */
- for (i = 0; i < (int) dlen; i++)
- data[i] = buf[dlen - i - 1]; /* make it big endian */
-
- CryptDestroyKey(hRsaKey);
- free(buf);
- free(pBlob);
-
-}
-
-
-int rsastr_len(struct RSAKey *key)
-{
- return 2 * (sizeof(DWORD) + key->bytes) + 10;
-}
-
-
-void rsastr_fmt(char *str, struct RSAKey *key)
-{
-
- int len = 0, i;
-
- sprintf(str + len, "%04x", key->exponent);
- len += strlen(str + len);
-
- str[len++] = '/';
- for (i = 1; i < key->bytes; i++) {
- sprintf(str + len, "%02x", key->modulus[i]);
- len += strlen(str + len);
- }
- str[len] = '\0';
-}
-
-
-
-/* ---------------------------------------------------------*
- * DES encryption / decryption functions *
- * ---------------------------------------------------------*/
-
-
-void des3_sesskey(unsigned char *key)
-{
- int i, j;
- for (i = 0; i < 2; i++) {
- for (j = 0; j < 3; j++) {
- hDESKey[i][j] = create_des_key(key + (j * 8));
- }
- }
-}
-
-
-void des3_encrypt_blk(unsigned char *blk, int len)
-{
-
- DWORD dlen;
- dlen = len;
-
- if (CryptEncrypt(hDESKey[0][0], 0, FALSE, 0, blk, &dlen, len + 8) == 0)
- fatalbox("Error encrypting block!\n");
- if (CryptDecrypt(hDESKey[0][1], 0, FALSE, 0, blk, &dlen) == 0)
- fatalbox("Error encrypting block!\n");
- if (CryptEncrypt(hDESKey[0][2], 0, FALSE, 0, blk, &dlen, len + 8) == 0)
- fatalbox("Error encrypting block!\n");
-}
-
-
-void des3_decrypt_blk(unsigned char *blk, int len)
-{
- DWORD dlen;
- dlen = len;
-
- if (CryptDecrypt(hDESKey[1][2], 0, FALSE, 0, blk, &dlen) == 0)
- fatalbox("Error decrypting block!\n");
- if (CryptEncrypt(hDESKey[1][1], 0, FALSE, 0, blk, &dlen, len + 8) == 0)
- fatalbox("Error decrypting block!\n");
- if (CryptDecrypt(hDESKey[1][0], 0, FALSE, 0, blk, &dlen) == 0)
- fatalbox("Error decrypting block!\n");
-}
-
-
-struct ssh_cipher ssh_3des = {
- des3_sesskey,
- des3_encrypt_blk,
- des3_decrypt_blk
-};
-
-
-void des_sesskey(unsigned char *key)
-{
- int i;
- for (i = 0; i < 2; i++) {
- hDESKey[i][0] = create_des_key(key);
- }
-}
-
-
-void des_encrypt_blk(unsigned char *blk, int len)
-{
- DWORD dlen;
- dlen = len;
- if (CryptEncrypt(hDESKey[0][0], 0, FALSE, 0, blk, &dlen, len + 8) == 0)
- fatalbox("Error encrypting block!\n");
-}
-
-
-void des_decrypt_blk(unsigned char *blk, int len)
-{
- DWORD dlen;
- dlen = len;
- if (CryptDecrypt(hDESKey[1][0], 0, FALSE, 0, blk, &dlen) == 0)
- fatalbox("Error decrypting block!\n");
-}
-
-struct ssh_cipher ssh_des = {
- des_sesskey,
- des_encrypt_blk,
- des_decrypt_blk
-};
-
-
-static HCRYPTKEY create_des_key(unsigned char *key)
-{
-
- HCRYPTKEY hSessionKey, hPrivateKey;
- DWORD dlen = 8;
- BLOBHEADER *pbh;
- char buf[sizeof(BLOBHEADER) + sizeof(ALG_ID) + 256];
-
- /*
- * Need special private key to encrypt session key so we can
- * import session key, since only encrypted session keys can be
- * imported
- */
- if (CryptImportKey(hCryptProv, PrivateKeyWithExponentOfOne,
- sizeof(PrivateKeyWithExponentOfOne),
- 0, 0, &hPrivateKey) == 0)
- return 0;
-
- /* now encrypt session key using special private key */
- memcpy(buf + sizeof(BLOBHEADER) + sizeof(ALG_ID), key, 8);
- if (CryptEncrypt(hPrivateKey, 0, TRUE, 0,
- buf + sizeof(BLOBHEADER) + sizeof(ALG_ID),
- &dlen, 256) == 0)
- return 0;
-
- /* build session key blob */
- pbh = (BLOBHEADER *) buf;
- pbh->bType = SIMPLEBLOB;
- pbh->bVersion = 0x02;
- pbh->reserved = 0;
- pbh->aiKeyAlg = CALG_DES;
- *((ALG_ID *) (buf + sizeof(BLOBHEADER))) = CALG_RSA_KEYX;
-
- /* import session key into key container */
- if (CryptImportKey(hCryptProv, buf,
- dlen + sizeof(BLOBHEADER) + sizeof(ALG_ID),
- hPrivateKey, 0, &hSessionKey) == 0)
- return 0;
-
- if (hPrivateKey)
- CryptDestroyKey(hPrivateKey);
-
- return hSessionKey;
-
-}
projects / u / mdw / putty / blobdiff