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The following parser functions have been rewritten to make use of input_tokenizer():

Browse Source 
oldoffice01_parse_hash
oldoffice01cm2_parse_hash
oldoffice34_parse_hash
oldoffice34cm2_parse_hash
This commit is contained in:
jsteube 2018-07-12 18:06:00 +02:00
parent 9f4655e131
commit bc8ed67a11
2 changed files with 235 additions and 277 deletions
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8
include/interface.h
View File

@ -1020,14 +1020,6 @@ typedef struct hccapx hccapx_t;
typedef enum display_len typedef enum display_len
{ {
DISPLAY_LEN_MIN_9700 = 12 + 1 + 32 + 1 + 32 + 1 + 32,
DISPLAY_LEN_MAX_9700 = 12 + 1 + 32 + 1 + 32 + 1 + 32,
DISPLAY_LEN_MIN_9720 = 12 + 1 + 32 + 1 + 32 + 1 + 32 + 1 + 10,
DISPLAY_LEN_MAX_9720 = 12 + 1 + 32 + 1 + 32 + 1 + 32 + 1 + 10,
DISPLAY_LEN_MIN_9800 = 12 + 1 + 32 + 1 + 32 + 1 + 40,
DISPLAY_LEN_MAX_9800 = 12 + 1 + 32 + 1 + 32 + 1 + 40,
DISPLAY_LEN_MIN_9820 = 12 + 1 + 32 + 1 + 32 + 1 + 40 + 1 + 10,
DISPLAY_LEN_MAX_9820 = 12 + 1 + 32 + 1 + 32 + 1 + 40 + 1 + 10,
DISPLAY_LEN_MIN_10000 = 13 + 1 + 1 + 1 + 0 + 44, DISPLAY_LEN_MIN_10000 = 13 + 1 + 1 + 1 + 0 + 44,
DISPLAY_LEN_MAX_10000 = 13 + 1 + 6 + 1 + 15 + 44, DISPLAY_LEN_MAX_10000 = 13 + 1 + 6 + 1 + 15 + 44,
DISPLAY_LEN_MIN_10100 = 16 + 1 + 1 + 1 + 1 + 1 + 32, DISPLAY_LEN_MIN_10100 = 16 + 1 + 1 + 1 + 1 + 1 + 32,

504
src/interface.c
View File

@ -620,6 +620,7 @@ static const char *SIGNATURE_NETSCALER = "1";
static const char *SIGNATURE_OFFICE2007 = "$office$"; static const char *SIGNATURE_OFFICE2007 = "$office$";
static const char *SIGNATURE_OFFICE2010 = "$office$"; static const char *SIGNATURE_OFFICE2010 = "$office$";
static const char *SIGNATURE_OFFICE2013 = "$office$"; static const char *SIGNATURE_OFFICE2013 = "$office$";
static const char *SIGNATURE_OLDOFFICE = "$oldoffice$";
static const char *SIGNATURE_OLDOFFICE0 = "$oldoffice$0"; static const char *SIGNATURE_OLDOFFICE0 = "$oldoffice$0";
static const char *SIGNATURE_OLDOFFICE1 = "$oldoffice$1"; static const char *SIGNATURE_OLDOFFICE1 = "$oldoffice$1";
static const char *SIGNATURE_OLDOFFICE3 = "$oldoffice$3"; static const char *SIGNATURE_OLDOFFICE3 = "$oldoffice$3";
@ -10248,97 +10249,85 @@ int office2013_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE
int oldoffice01_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig) int oldoffice01_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig)
{ {
if ((input_len < DISPLAY_LEN_MIN_9700) || (input_len > DISPLAY_LEN_MAX_9700)) return (PARSER_GLOBAL_LENGTH);
if ((memcmp (SIGNATURE_OLDOFFICE0, input_buf, 12) != 0) && (memcmp (SIGNATURE_OLDOFFICE1, input_buf, 12) != 0)) return (PARSER_SIGNATURE_UNMATCHED);
u32 *digest = (u32 *) hash_buf->digest; u32 *digest = (u32 *) hash_buf->digest;
salt_t *salt = hash_buf->salt; salt_t *salt = hash_buf->salt;
oldoffice01_t *oldoffice01 = (oldoffice01_t *) hash_buf->esalt; oldoffice01_t *oldoffice01 = (oldoffice01_t *) hash_buf->esalt;
/** token_t token;
* parse line
*/
u8 *version_pos = input_buf + 11; token.token_cnt = 5;
u8 *osalt_pos = (u8 *) strchr ((const char *) version_pos, '*'); token.signatures_cnt = 2;
token.signatures_buf[0] = SIGNATURE_OLDOFFICE0;
token.signatures_buf[1] = SIGNATURE_OLDOFFICE1;
if (osalt_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED); token.len[0] = 11;
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_SIGNATURE;
u32 version_len = osalt_pos - version_pos; token.len_min[1] = 1;
token.len_max[1] = 1;
token.sep[1] = '*';
token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
if (version_len != 1) return (PARSER_SALT_LENGTH); token.len_min[2] = 32;
token.len_max[2] = 32;
token.sep[2] = '*';
token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH;
osalt_pos++; token.len_min[3] = 32;
token.len_max[3] = 32;
token.sep[3] = '*';
token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
u8 *encryptedVerifier_pos = (u8 *) strchr ((const char *) osalt_pos, '*'); token.len_min[4] = 32;
token.len_max[4] = 32;
token.sep[4] = '*';
token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
if (encryptedVerifier_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED); const int rc_tokenizer = input_tokenizer (input_buf, input_len, &token);
u32 osalt_len = encryptedVerifier_pos - osalt_pos; if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
if (osalt_len != 32) return (PARSER_SALT_LENGTH); u8 *version_pos = token.buf[1];
u8 *osalt_pos = token.buf[2];
u8 *encryptedVerifier_pos = token.buf[3];
u8 *encryptedVerifierHash_pos = token.buf[4];
encryptedVerifier_pos++; // esalt
u8 *encryptedVerifierHash_pos = (u8 *) strchr ((const char *) encryptedVerifier_pos, '*');
if (encryptedVerifierHash_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED);
u32 encryptedVerifier_len = encryptedVerifierHash_pos - encryptedVerifier_pos;
if (encryptedVerifier_len != 32) return (PARSER_SALT_LENGTH);
encryptedVerifierHash_pos++;
// The following check is implied (and therefore not needed aka dead code):
// u32 encryptedVerifierHash_len = input_len - 11 - version_len - 1 - osalt_len - 1 - encryptedVerifier_len - 1;
// if (encryptedVerifierHash_len != 32) return (PARSER_SALT_LENGTH);
const u32 version = *version_pos - 0x30; const u32 version = *version_pos - 0x30;
if (version != 0 && version != 1) return (PARSER_SALT_VALUE); if (version != 0 && version != 1) return (PARSER_SALT_VALUE);
/**
* esalt
*/
oldoffice01->version = version; oldoffice01->version = version;
if (is_valid_hex_string (encryptedVerifier_pos, 32) == false) return (PARSER_HASH_ENCODING); oldoffice01->encryptedVerifier[0] = hex_to_u32 (encryptedVerifier_pos + 0);
oldoffice01->encryptedVerifier[1] = hex_to_u32 (encryptedVerifier_pos + 8);
oldoffice01->encryptedVerifier[2] = hex_to_u32 (encryptedVerifier_pos + 16);
oldoffice01->encryptedVerifier[3] = hex_to_u32 (encryptedVerifier_pos + 24);
oldoffice01->encryptedVerifier[0] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[ 0]); oldoffice01->encryptedVerifierHash[0] = hex_to_u32 (encryptedVerifierHash_pos + 0);
oldoffice01->encryptedVerifier[1] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[ 8]); oldoffice01->encryptedVerifierHash[1] = hex_to_u32 (encryptedVerifierHash_pos + 8);
oldoffice01->encryptedVerifier[2] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[16]); oldoffice01->encryptedVerifierHash[2] = hex_to_u32 (encryptedVerifierHash_pos + 16);
oldoffice01->encryptedVerifier[3] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[24]); oldoffice01->encryptedVerifierHash[3] = hex_to_u32 (encryptedVerifierHash_pos + 24);
if (is_valid_hex_string (encryptedVerifierHash_pos, 32) == false) return (PARSER_HASH_ENCODING); // salt
oldoffice01->encryptedVerifierHash[0] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[ 0]);
oldoffice01->encryptedVerifierHash[1] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[ 8]);
oldoffice01->encryptedVerifierHash[2] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[16]);
oldoffice01->encryptedVerifierHash[3] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[24]);
/**
* salt
*/
salt->salt_len = 16; salt->salt_len = 16;
if (is_valid_hex_string (osalt_pos, 32) == false) return (PARSER_SALT_ENCODING); salt->salt_buf[ 0] = hex_to_u32 (osalt_pos + 0);
salt->salt_buf[ 1] = hex_to_u32 (osalt_pos + 8);
salt->salt_buf[0] = hex_to_u32 ((const u8 *) &osalt_pos[ 0]); salt->salt_buf[ 2] = hex_to_u32 (osalt_pos + 16);
salt->salt_buf[1] = hex_to_u32 ((const u8 *) &osalt_pos[ 8]); salt->salt_buf[ 3] = hex_to_u32 (osalt_pos + 24);
salt->salt_buf[2] = hex_to_u32 ((const u8 *) &osalt_pos[16]);
salt->salt_buf[3] = hex_to_u32 ((const u8 *) &osalt_pos[24]);
// this is a workaround as office produces multiple documents with the same salt // this is a workaround as office produces multiple documents with the same salt
salt->salt_len += 32;
salt->salt_buf[ 4] = oldoffice01->encryptedVerifier[0]; salt->salt_buf[ 4] = oldoffice01->encryptedVerifier[0];
salt->salt_buf[ 5] = oldoffice01->encryptedVerifier[1]; salt->salt_buf[ 5] = oldoffice01->encryptedVerifier[1];
salt->salt_buf[ 6] = oldoffice01->encryptedVerifier[2]; salt->salt_buf[ 6] = oldoffice01->encryptedVerifier[2];
@ -10348,6 +10337,8 @@ int oldoffice01_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYB
salt->salt_buf[10] = oldoffice01->encryptedVerifierHash[2]; salt->salt_buf[10] = oldoffice01->encryptedVerifierHash[2];
salt->salt_buf[11] = oldoffice01->encryptedVerifierHash[3]; salt->salt_buf[11] = oldoffice01->encryptedVerifierHash[3];
salt->salt_len += 32;
/** /**
* digest * digest
*/ */
@ -10367,86 +10358,80 @@ int oldoffice01cm1_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, M
int oldoffice01cm2_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig) int oldoffice01cm2_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig)
{ {
if ((input_len < DISPLAY_LEN_MIN_9720) || (input_len > DISPLAY_LEN_MAX_9720)) return (PARSER_GLOBAL_LENGTH);
if ((memcmp (SIGNATURE_OLDOFFICE0, input_buf, 12) != 0) && (memcmp (SIGNATURE_OLDOFFICE1, input_buf, 12) != 0)) return (PARSER_SIGNATURE_UNMATCHED);
u32 *digest = (u32 *) hash_buf->digest; u32 *digest = (u32 *) hash_buf->digest;
salt_t *salt = hash_buf->salt; salt_t *salt = hash_buf->salt;
oldoffice01_t *oldoffice01 = (oldoffice01_t *) hash_buf->esalt; oldoffice01_t *oldoffice01 = (oldoffice01_t *) hash_buf->esalt;
/** token_t token;
* parse line
*/
u8 *version_pos = input_buf + 11; token.token_cnt = 6;
u8 *osalt_pos = (u8 *) strchr ((const char *) version_pos, '*'); token.signatures_cnt = 2;
token.signatures_buf[0] = SIGNATURE_OLDOFFICE0;
token.signatures_buf[1] = SIGNATURE_OLDOFFICE1;
if (osalt_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED); token.len[0] = 11;
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_SIGNATURE;
u32 version_len = osalt_pos - version_pos; token.len_min[1] = 1;
token.len_max[1] = 1;
token.sep[1] = '*';
token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
osalt_pos++; token.len_min[2] = 32;
token.len_max[2] = 32;
token.sep[2] = '*';
token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH;
u8 *encryptedVerifier_pos = (u8 *) strchr ((const char *) osalt_pos, '*'); token.len_min[3] = 32;
token.len_max[3] = 32;
token.sep[3] = '*';
token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
if (encryptedVerifier_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED); token.len_min[4] = 32;
token.len_max[4] = 32;
token.sep[4] = ':';
token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
u32 osalt_len = encryptedVerifier_pos - osalt_pos; token.len_min[5] = 10;
token.len_max[5] = 10;
token.sep[5] = ':';
token.attr[5] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
encryptedVerifier_pos++; const int rc_tokenizer = input_tokenizer (input_buf, input_len, &token);
u8 *encryptedVerifierHash_pos = (u8 *) strchr ((const char *) encryptedVerifier_pos, '*'); if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
if (encryptedVerifierHash_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED); u8 *version_pos = token.buf[1];
u8 *osalt_pos = token.buf[2];
u8 *encryptedVerifier_pos = token.buf[3];
u8 *encryptedVerifierHash_pos = token.buf[4];
u8 *rc4key_pos = token.buf[5];
u32 encryptedVerifier_len = encryptedVerifierHash_pos - encryptedVerifier_pos; // esalt
encryptedVerifierHash_pos++;
u8 *rc4key_pos = (u8 *) strchr ((const char *) encryptedVerifierHash_pos, ':');
if (rc4key_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED);
u32 encryptedVerifierHash_len = rc4key_pos - encryptedVerifierHash_pos;
rc4key_pos++;
u32 rc4key_len = input_len - 11 - version_len - 1 - osalt_len - 1 - encryptedVerifier_len - 1 - encryptedVerifierHash_len - 1;
if (rc4key_len != 10) return (PARSER_SALT_LENGTH);
if (version_len != 1) return (PARSER_SALT_LENGTH);
if (osalt_len != 32) return (PARSER_SALT_LENGTH);
if (encryptedVerifier_len != 32) return (PARSER_SALT_LENGTH);
if (encryptedVerifierHash_len != 32) return (PARSER_SALT_LENGTH);
const u32 version = *version_pos - 0x30; const u32 version = *version_pos - 0x30;
if (version != 0 && version != 1) return (PARSER_SALT_VALUE); if (version != 0 && version != 1) return (PARSER_SALT_VALUE);
/**
* esalt
*/
oldoffice01->version = version; oldoffice01->version = version;
if (is_valid_hex_string (encryptedVerifier_pos, 32) == false) return (PARSER_HASH_ENCODING); oldoffice01->encryptedVerifier[0] = hex_to_u32 (encryptedVerifier_pos + 0);
oldoffice01->encryptedVerifier[1] = hex_to_u32 (encryptedVerifier_pos + 8);
oldoffice01->encryptedVerifier[2] = hex_to_u32 (encryptedVerifier_pos + 16);
oldoffice01->encryptedVerifier[3] = hex_to_u32 (encryptedVerifier_pos + 24);
oldoffice01->encryptedVerifier[0] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[ 0]); oldoffice01->encryptedVerifierHash[0] = hex_to_u32 (encryptedVerifierHash_pos + 0);
oldoffice01->encryptedVerifier[1] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[ 8]); oldoffice01->encryptedVerifierHash[1] = hex_to_u32 (encryptedVerifierHash_pos + 8);
oldoffice01->encryptedVerifier[2] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[16]); oldoffice01->encryptedVerifierHash[2] = hex_to_u32 (encryptedVerifierHash_pos + 16);
oldoffice01->encryptedVerifier[3] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[24]); oldoffice01->encryptedVerifierHash[3] = hex_to_u32 (encryptedVerifierHash_pos + 24);
if (is_valid_hex_string (encryptedVerifierHash_pos, 32) == false) return (PARSER_HASH_ENCODING);
oldoffice01->encryptedVerifierHash[0] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[ 0]);
oldoffice01->encryptedVerifierHash[1] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[ 8]);
oldoffice01->encryptedVerifierHash[2] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[16]);
oldoffice01->encryptedVerifierHash[3] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[24]);
oldoffice01->rc4key[1] = 0; oldoffice01->rc4key[1] = 0;
oldoffice01->rc4key[0] = 0; oldoffice01->rc4key[0] = 0;
@ -10465,23 +10450,17 @@ int oldoffice01cm2_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, M
oldoffice01->rc4key[0] = byte_swap_32 (oldoffice01->rc4key[0]); oldoffice01->rc4key[0] = byte_swap_32 (oldoffice01->rc4key[0]);
oldoffice01->rc4key[1] = byte_swap_32 (oldoffice01->rc4key[1]); oldoffice01->rc4key[1] = byte_swap_32 (oldoffice01->rc4key[1]);
/** // salt
* salt
*/
salt->salt_len = 16; salt->salt_len = 16;
if (is_valid_hex_string (osalt_pos, 32) == false) return (PARSER_SALT_ENCODING); salt->salt_buf[ 0] = hex_to_u32 (osalt_pos + 0);
salt->salt_buf[ 1] = hex_to_u32 (osalt_pos + 8);
salt->salt_buf[0] = hex_to_u32 ((const u8 *) &osalt_pos[ 0]); salt->salt_buf[ 2] = hex_to_u32 (osalt_pos + 16);
salt->salt_buf[1] = hex_to_u32 ((const u8 *) &osalt_pos[ 8]); salt->salt_buf[ 3] = hex_to_u32 (osalt_pos + 24);
salt->salt_buf[2] = hex_to_u32 ((const u8 *) &osalt_pos[16]);
salt->salt_buf[3] = hex_to_u32 ((const u8 *) &osalt_pos[24]);
// this is a workaround as office produces multiple documents with the same salt // this is a workaround as office produces multiple documents with the same salt
salt->salt_len += 32;
salt->salt_buf[ 4] = oldoffice01->encryptedVerifier[0]; salt->salt_buf[ 4] = oldoffice01->encryptedVerifier[0];
salt->salt_buf[ 5] = oldoffice01->encryptedVerifier[1]; salt->salt_buf[ 5] = oldoffice01->encryptedVerifier[1];
salt->salt_buf[ 6] = oldoffice01->encryptedVerifier[2]; salt->salt_buf[ 6] = oldoffice01->encryptedVerifier[2];
@ -10491,6 +10470,8 @@ int oldoffice01cm2_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, M
salt->salt_buf[10] = oldoffice01->encryptedVerifierHash[2]; salt->salt_buf[10] = oldoffice01->encryptedVerifierHash[2];
salt->salt_buf[11] = oldoffice01->encryptedVerifierHash[3]; salt->salt_buf[11] = oldoffice01->encryptedVerifierHash[3];
salt->salt_len += 32;
/** /**
* digest * digest
*/ */
@ -10505,103 +10486,91 @@ int oldoffice01cm2_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, M
int oldoffice34_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig) int oldoffice34_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig)
{ {
if ((input_len < DISPLAY_LEN_MIN_9800) || (input_len > DISPLAY_LEN_MAX_9800)) return (PARSER_GLOBAL_LENGTH);
if ((memcmp (SIGNATURE_OLDOFFICE3, input_buf, 12) != 0) && (memcmp (SIGNATURE_OLDOFFICE4, input_buf, 12) != 0)) return (PARSER_SIGNATURE_UNMATCHED);
u32 *digest = (u32 *) hash_buf->digest; u32 *digest = (u32 *) hash_buf->digest;
salt_t *salt = hash_buf->salt; salt_t *salt = hash_buf->salt;
oldoffice34_t *oldoffice34 = (oldoffice34_t *) hash_buf->esalt; oldoffice34_t *oldoffice34 = (oldoffice34_t *) hash_buf->esalt;
/** token_t token;
* parse line
*/
u8 *version_pos = input_buf + 11; token.token_cnt = 5;
u8 *osalt_pos = (u8 *) strchr ((const char *) version_pos, '*'); token.signatures_cnt = 2;
token.signatures_buf[0] = SIGNATURE_OLDOFFICE3;
token.signatures_buf[1] = SIGNATURE_OLDOFFICE4;
if (osalt_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED); token.len[0] = 11;
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_SIGNATURE;
u32 version_len = osalt_pos - version_pos; token.len_min[1] = 1;
token.len_max[1] = 1;
token.sep[1] = '*';
token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
if (version_len != 1) return (PARSER_SALT_LENGTH); token.len_min[2] = 32;
token.len_max[2] = 32;
token.sep[2] = '*';
token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH;
osalt_pos++; token.len_min[3] = 32;
token.len_max[3] = 32;
token.sep[3] = '*';
token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
u8 *encryptedVerifier_pos = (u8 *) strchr ((const char *) osalt_pos, '*'); token.len_min[4] = 40;
token.len_max[4] = 40;
token.sep[4] = '*';
token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
if (encryptedVerifier_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED); const int rc_tokenizer = input_tokenizer (input_buf, input_len, &token);
u32 osalt_len = encryptedVerifier_pos - osalt_pos; if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
if (osalt_len != 32) return (PARSER_SALT_LENGTH); u8 *version_pos = token.buf[1];
u8 *osalt_pos = token.buf[2];
u8 *encryptedVerifier_pos = token.buf[3];
u8 *encryptedVerifierHash_pos = token.buf[4];
encryptedVerifier_pos++; // esalt
u8 *encryptedVerifierHash_pos = (u8 *) strchr ((const char *) encryptedVerifier_pos, '*');
if (encryptedVerifierHash_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED);
u32 encryptedVerifier_len = encryptedVerifierHash_pos - encryptedVerifier_pos;
if (encryptedVerifier_len != 32) return (PARSER_SALT_LENGTH);
encryptedVerifierHash_pos++;
// The following check is implied (and therefore not needed aka dead code):
// u32 encryptedVerifierHash_len = input_len - 11 - version_len - 1 - osalt_len - 1 - encryptedVerifier_len - 1;
// if (encryptedVerifierHash_len != 40) return (PARSER_SALT_LENGTH);
const u32 version = *version_pos - 0x30; const u32 version = *version_pos - 0x30;
if (version != 3 && version != 4) return (PARSER_SALT_VALUE); if (version != 3 && version != 4) return (PARSER_SALT_VALUE);
/**
* esalt
*/
oldoffice34->version = version; oldoffice34->version = version;
if (is_valid_hex_string (encryptedVerifier_pos, 32) == false) return (PARSER_HASH_ENCODING); oldoffice34->encryptedVerifier[0] = hex_to_u32 (encryptedVerifier_pos + 0);
oldoffice34->encryptedVerifier[1] = hex_to_u32 (encryptedVerifier_pos + 8);
oldoffice34->encryptedVerifier[2] = hex_to_u32 (encryptedVerifier_pos + 16);
oldoffice34->encryptedVerifier[3] = hex_to_u32 (encryptedVerifier_pos + 24);
oldoffice34->encryptedVerifier[0] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[ 0]); oldoffice34->encryptedVerifierHash[0] = hex_to_u32 (encryptedVerifierHash_pos + 0);
oldoffice34->encryptedVerifier[1] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[ 8]); oldoffice34->encryptedVerifierHash[1] = hex_to_u32 (encryptedVerifierHash_pos + 8);
oldoffice34->encryptedVerifier[2] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[16]); oldoffice34->encryptedVerifierHash[2] = hex_to_u32 (encryptedVerifierHash_pos + 16);
oldoffice34->encryptedVerifier[3] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[24]); oldoffice34->encryptedVerifierHash[3] = hex_to_u32 (encryptedVerifierHash_pos + 24);
oldoffice34->encryptedVerifierHash[4] = hex_to_u32 (encryptedVerifierHash_pos + 32);
if (is_valid_hex_string (encryptedVerifierHash_pos, 40) == false) return (PARSER_HASH_ENCODING); // salt
oldoffice34->encryptedVerifierHash[0] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[ 0]);
oldoffice34->encryptedVerifierHash[1] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[ 8]);
oldoffice34->encryptedVerifierHash[2] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[16]);
oldoffice34->encryptedVerifierHash[3] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[24]);
oldoffice34->encryptedVerifierHash[4] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[32]);
/**
* salt
*/
salt->salt_len = 16; salt->salt_len = 16;
if (is_valid_hex_string (osalt_pos, 32) == false) return (PARSER_SALT_ENCODING); salt->salt_buf[ 0] = hex_to_u32 (osalt_pos + 0);
salt->salt_buf[ 1] = hex_to_u32 (osalt_pos + 8);
salt->salt_buf[ 2] = hex_to_u32 (osalt_pos + 16);
salt->salt_buf[ 3] = hex_to_u32 (osalt_pos + 24);
salt->salt_buf[0] = hex_to_u32 ((const u8 *) &osalt_pos[ 0]); salt->salt_buf[ 0] = byte_swap_32 (salt->salt_buf[0]);
salt->salt_buf[1] = hex_to_u32 ((const u8 *) &osalt_pos[ 8]); salt->salt_buf[ 1] = byte_swap_32 (salt->salt_buf[1]);
salt->salt_buf[2] = hex_to_u32 ((const u8 *) &osalt_pos[16]); salt->salt_buf[ 2] = byte_swap_32 (salt->salt_buf[2]);
salt->salt_buf[3] = hex_to_u32 ((const u8 *) &osalt_pos[24]); salt->salt_buf[ 3] = byte_swap_32 (salt->salt_buf[3]);
salt->salt_buf[0] = byte_swap_32 (salt->salt_buf[0]);
salt->salt_buf[1] = byte_swap_32 (salt->salt_buf[1]);
salt->salt_buf[2] = byte_swap_32 (salt->salt_buf[2]);
salt->salt_buf[3] = byte_swap_32 (salt->salt_buf[3]);
// this is a workaround as office produces multiple documents with the same salt // this is a workaround as office produces multiple documents with the same salt
salt->salt_len += 32;
salt->salt_buf[ 4] = oldoffice34->encryptedVerifier[0]; salt->salt_buf[ 4] = oldoffice34->encryptedVerifier[0];
salt->salt_buf[ 5] = oldoffice34->encryptedVerifier[1]; salt->salt_buf[ 5] = oldoffice34->encryptedVerifier[1];
salt->salt_buf[ 6] = oldoffice34->encryptedVerifier[2]; salt->salt_buf[ 6] = oldoffice34->encryptedVerifier[2];
@ -10611,6 +10580,8 @@ int oldoffice34_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYB
salt->salt_buf[10] = oldoffice34->encryptedVerifierHash[2]; salt->salt_buf[10] = oldoffice34->encryptedVerifierHash[2];
salt->salt_buf[11] = oldoffice34->encryptedVerifierHash[3]; salt->salt_buf[11] = oldoffice34->encryptedVerifierHash[3];
salt->salt_len += 32;
/** /**
* digest * digest
*/ */
@ -10632,86 +10603,79 @@ int oldoffice34cm1_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, M
int oldoffice34cm2_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig) int oldoffice34cm2_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig)
{ {
if ((input_len < DISPLAY_LEN_MIN_9820) || (input_len > DISPLAY_LEN_MAX_9820)) return (PARSER_GLOBAL_LENGTH);
if (memcmp (SIGNATURE_OLDOFFICE3, input_buf, 12) != 0) return (PARSER_SIGNATURE_UNMATCHED);
u32 *digest = (u32 *) hash_buf->digest; u32 *digest = (u32 *) hash_buf->digest;
salt_t *salt = hash_buf->salt; salt_t *salt = hash_buf->salt;
oldoffice34_t *oldoffice34 = (oldoffice34_t *) hash_buf->esalt; oldoffice34_t *oldoffice34 = (oldoffice34_t *) hash_buf->esalt;
/** token_t token;
* parse line
*/
u8 *version_pos = input_buf + 11; token.token_cnt = 6;
u8 *osalt_pos = (u8 *) strchr ((const char *) version_pos, '*'); token.signatures_cnt = 1;
token.signatures_buf[0] = SIGNATURE_OLDOFFICE3;
if (osalt_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED); token.len[0] = 11;
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_SIGNATURE;
u32 version_len = osalt_pos - version_pos; token.len_min[1] = 1;
token.len_max[1] = 1;
token.sep[1] = '*';
token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_DIGIT;
osalt_pos++; token.len_min[2] = 32;
token.len_max[2] = 32;
token.sep[2] = '*';
token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH;
u8 *encryptedVerifier_pos = (u8 *) strchr ((const char *) osalt_pos, '*'); token.len_min[3] = 32;
token.len_max[3] = 32;
token.sep[3] = '*';
token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
if (encryptedVerifier_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED); token.len_min[4] = 40;
token.len_max[4] = 40;
token.sep[4] = ':';
token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
u32 osalt_len = encryptedVerifier_pos - osalt_pos; token.len_min[5] = 10;
token.len_max[5] = 10;
token.attr[5] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_HEX;
encryptedVerifier_pos++; const int rc_tokenizer = input_tokenizer (input_buf, input_len, &token);
u8 *encryptedVerifierHash_pos = (u8 *) strchr ((const char *) encryptedVerifier_pos, '*'); if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
if (encryptedVerifierHash_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED); u8 *version_pos = token.buf[1];
u8 *osalt_pos = token.buf[2];
u8 *encryptedVerifier_pos = token.buf[3];
u8 *encryptedVerifierHash_pos = token.buf[4];
u8 *rc4key_pos = token.buf[5];
u32 encryptedVerifier_len = encryptedVerifierHash_pos - encryptedVerifier_pos; // esalt
encryptedVerifierHash_pos++;
u8 *rc4key_pos = (u8 *) strchr ((const char *) encryptedVerifierHash_pos, ':');
if (rc4key_pos == NULL) return (PARSER_SEPARATOR_UNMATCHED);
u32 encryptedVerifierHash_len = rc4key_pos - encryptedVerifierHash_pos;
rc4key_pos++;
u32 rc4key_len = input_len - 11 - version_len - 1 - osalt_len - 1 - encryptedVerifier_len - 1 - encryptedVerifierHash_len - 1;
if (version_len != 1) return (PARSER_SALT_LENGTH);
if (osalt_len != 32) return (PARSER_SALT_LENGTH);
if (encryptedVerifier_len != 32) return (PARSER_SALT_LENGTH);
if (encryptedVerifierHash_len != 40) return (PARSER_SALT_LENGTH);
if (rc4key_len != 10) return (PARSER_SALT_LENGTH);
const u32 version = *version_pos - 0x30; const u32 version = *version_pos - 0x30;
if (version != 3 && version != 4) return (PARSER_SALT_VALUE); if (version != 3 && version != 4) return (PARSER_SALT_VALUE);
/**
* esalt
*/
oldoffice34->version = version; oldoffice34->version = version;
if (is_valid_hex_string (encryptedVerifier_pos, 32) == false) return (PARSER_HASH_ENCODING); oldoffice34->encryptedVerifier[0] = hex_to_u32 (encryptedVerifier_pos + 0);
oldoffice34->encryptedVerifier[1] = hex_to_u32 (encryptedVerifier_pos + 8);
oldoffice34->encryptedVerifier[2] = hex_to_u32 (encryptedVerifier_pos + 16);
oldoffice34->encryptedVerifier[3] = hex_to_u32 (encryptedVerifier_pos + 24);
oldoffice34->encryptedVerifier[0] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[ 0]); oldoffice34->encryptedVerifierHash[0] = hex_to_u32 (encryptedVerifierHash_pos + 0);
oldoffice34->encryptedVerifier[1] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[ 8]); oldoffice34->encryptedVerifierHash[1] = hex_to_u32 (encryptedVerifierHash_pos + 8);
oldoffice34->encryptedVerifier[2] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[16]); oldoffice34->encryptedVerifierHash[2] = hex_to_u32 (encryptedVerifierHash_pos + 16);
oldoffice34->encryptedVerifier[3] = hex_to_u32 ((const u8 *) &encryptedVerifier_pos[24]); oldoffice34->encryptedVerifierHash[3] = hex_to_u32 (encryptedVerifierHash_pos + 24);
oldoffice34->encryptedVerifierHash[4] = hex_to_u32 (encryptedVerifierHash_pos + 32);
if (is_valid_hex_string (encryptedVerifierHash_pos, 40) == false) return (PARSER_HASH_ENCODING);
oldoffice34->encryptedVerifierHash[0] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[ 0]);
oldoffice34->encryptedVerifierHash[1] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[ 8]);
oldoffice34->encryptedVerifierHash[2] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[16]);
oldoffice34->encryptedVerifierHash[3] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[24]);
oldoffice34->encryptedVerifierHash[4] = hex_to_u32 ((const u8 *) &encryptedVerifierHash_pos[32]);
oldoffice34->rc4key[1] = 0; oldoffice34->rc4key[1] = 0;
oldoffice34->rc4key[0] = 0; oldoffice34->rc4key[0] = 0;
@ -10730,28 +10694,22 @@ int oldoffice34cm2_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, M
oldoffice34->rc4key[0] = byte_swap_32 (oldoffice34->rc4key[0]); oldoffice34->rc4key[0] = byte_swap_32 (oldoffice34->rc4key[0]);
oldoffice34->rc4key[1] = byte_swap_32 (oldoffice34->rc4key[1]); oldoffice34->rc4key[1] = byte_swap_32 (oldoffice34->rc4key[1]);
/** // salt
* salt
*/
salt->salt_len = 16; salt->salt_len = 16;
if (is_valid_hex_string (osalt_pos, 32) == false) return (PARSER_SALT_ENCODING); salt->salt_buf[ 0] = hex_to_u32 (osalt_pos + 0);
salt->salt_buf[ 1] = hex_to_u32 (osalt_pos + 8);
salt->salt_buf[ 2] = hex_to_u32 (osalt_pos + 16);
salt->salt_buf[ 3] = hex_to_u32 (osalt_pos + 24);
salt->salt_buf[0] = hex_to_u32 ((const u8 *) &osalt_pos[ 0]); salt->salt_buf[ 0] = byte_swap_32 (salt->salt_buf[0]);
salt->salt_buf[1] = hex_to_u32 ((const u8 *) &osalt_pos[ 8]); salt->salt_buf[ 1] = byte_swap_32 (salt->salt_buf[1]);
salt->salt_buf[2] = hex_to_u32 ((const u8 *) &osalt_pos[16]); salt->salt_buf[ 2] = byte_swap_32 (salt->salt_buf[2]);
salt->salt_buf[3] = hex_to_u32 ((const u8 *) &osalt_pos[24]); salt->salt_buf[ 3] = byte_swap_32 (salt->salt_buf[3]);
salt->salt_buf[0] = byte_swap_32 (salt->salt_buf[0]);
salt->salt_buf[1] = byte_swap_32 (salt->salt_buf[1]);
salt->salt_buf[2] = byte_swap_32 (salt->salt_buf[2]);
salt->salt_buf[3] = byte_swap_32 (salt->salt_buf[3]);
// this is a workaround as office produces multiple documents with the same salt // this is a workaround as office produces multiple documents with the same salt
salt->salt_len += 32;
salt->salt_buf[ 4] = oldoffice34->encryptedVerifier[0]; salt->salt_buf[ 4] = oldoffice34->encryptedVerifier[0];
salt->salt_buf[ 5] = oldoffice34->encryptedVerifier[1]; salt->salt_buf[ 5] = oldoffice34->encryptedVerifier[1];
salt->salt_buf[ 6] = oldoffice34->encryptedVerifier[2]; salt->salt_buf[ 6] = oldoffice34->encryptedVerifier[2];
@ -10761,6 +10719,8 @@ int oldoffice34cm2_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, M
salt->salt_buf[10] = oldoffice34->encryptedVerifierHash[2]; salt->salt_buf[10] = oldoffice34->encryptedVerifierHash[2];
salt->salt_buf[11] = oldoffice34->encryptedVerifierHash[3]; salt->salt_buf[11] = oldoffice34->encryptedVerifierHash[3];
salt->salt_len += 32;
/** /**
* digest * digest
*/ */
@ -19749,8 +19709,9 @@ int ascii_digest (hashcat_ctx_t *hashcat_ctx, char *out_buf, const size_t out_le
oldoffice01_t *oldoffice01 = &oldoffice01s[digest_cur]; oldoffice01_t *oldoffice01 = &oldoffice01s[digest_cur];
snprintf (out_buf, out_len - 1, "%s*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x", snprintf (out_buf, out_len - 1, "%s%d*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x",
(oldoffice01->version == 0) ? SIGNATURE_OLDOFFICE0 : SIGNATURE_OLDOFFICE1, SIGNATURE_OLDOFFICE,
oldoffice01->version,
byte_swap_32 (salt.salt_buf[0]), byte_swap_32 (salt.salt_buf[0]),
byte_swap_32 (salt.salt_buf[1]), byte_swap_32 (salt.salt_buf[1]),
byte_swap_32 (salt.salt_buf[2]), byte_swap_32 (salt.salt_buf[2]),
@ -19770,8 +19731,9 @@ int ascii_digest (hashcat_ctx_t *hashcat_ctx, char *out_buf, const size_t out_le
oldoffice01_t *oldoffice01 = &oldoffice01s[digest_cur]; oldoffice01_t *oldoffice01 = &oldoffice01s[digest_cur];
snprintf (out_buf, out_len - 1, "%s*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x", snprintf (out_buf, out_len - 1, "%s%d*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x",
(oldoffice01->version == 0) ? SIGNATURE_OLDOFFICE0 : SIGNATURE_OLDOFFICE1, SIGNATURE_OLDOFFICE,
oldoffice01->version,
byte_swap_32 (salt.salt_buf[0]), byte_swap_32 (salt.salt_buf[0]),
byte_swap_32 (salt.salt_buf[1]), byte_swap_32 (salt.salt_buf[1]),
byte_swap_32 (salt.salt_buf[2]), byte_swap_32 (salt.salt_buf[2]),
@ -19793,8 +19755,9 @@ int ascii_digest (hashcat_ctx_t *hashcat_ctx, char *out_buf, const size_t out_le
u8 *rc4key = (u8 *) oldoffice01->rc4key; u8 *rc4key = (u8 *) oldoffice01->rc4key;
snprintf (out_buf, out_len - 1, "%s*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x:%02x%02x%02x%02x%02x", snprintf (out_buf, out_len - 1, "%s%d*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x:%02x%02x%02x%02x%02x",
(oldoffice01->version == 0) ? SIGNATURE_OLDOFFICE0 : SIGNATURE_OLDOFFICE1, SIGNATURE_OLDOFFICE,
oldoffice01->version,
byte_swap_32 (salt.salt_buf[0]), byte_swap_32 (salt.salt_buf[0]),
byte_swap_32 (salt.salt_buf[1]), byte_swap_32 (salt.salt_buf[1]),
byte_swap_32 (salt.salt_buf[2]), byte_swap_32 (salt.salt_buf[2]),
@ -19819,8 +19782,9 @@ int ascii_digest (hashcat_ctx_t *hashcat_ctx, char *out_buf, const size_t out_le
oldoffice34_t *oldoffice34 = &oldoffice34s[digest_cur]; oldoffice34_t *oldoffice34 = &oldoffice34s[digest_cur];
snprintf (out_buf, out_len - 1, "%s*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x%08x", snprintf (out_buf, out_len - 1, "%s%d*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x%08x",
(oldoffice34->version == 3) ? SIGNATURE_OLDOFFICE3 : SIGNATURE_OLDOFFICE4, SIGNATURE_OLDOFFICE,
oldoffice34->version,
salt.salt_buf[0], salt.salt_buf[0],
salt.salt_buf[1], salt.salt_buf[1],
salt.salt_buf[2], salt.salt_buf[2],
@ -19841,8 +19805,9 @@ int ascii_digest (hashcat_ctx_t *hashcat_ctx, char *out_buf, const size_t out_le
oldoffice34_t *oldoffice34 = &oldoffice34s[digest_cur]; oldoffice34_t *oldoffice34 = &oldoffice34s[digest_cur];
snprintf (out_buf, out_len - 1, "%s*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x%08x", snprintf (out_buf, out_len - 1, "%s%d*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x%08x",
(oldoffice34->version == 3) ? SIGNATURE_OLDOFFICE3 : SIGNATURE_OLDOFFICE4, SIGNATURE_OLDOFFICE,
oldoffice34->version,
salt.salt_buf[0], salt.salt_buf[0],
salt.salt_buf[1], salt.salt_buf[1],
salt.salt_buf[2], salt.salt_buf[2],
@ -19865,8 +19830,9 @@ int ascii_digest (hashcat_ctx_t *hashcat_ctx, char *out_buf, const size_t out_le
u8 *rc4key = (u8 *) oldoffice34->rc4key; u8 *rc4key = (u8 *) oldoffice34->rc4key;
snprintf (out_buf, out_len - 1, "%s*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x%08x:%02x%02x%02x%02x%02x", snprintf (out_buf, out_len - 1, "%s%d*%08x%08x%08x%08x*%08x%08x%08x%08x*%08x%08x%08x%08x%08x:%02x%02x%02x%02x%02x",
(oldoffice34->version == 3) ? SIGNATURE_OLDOFFICE3 : SIGNATURE_OLDOFFICE4, SIGNATURE_OLDOFFICE,
oldoffice34->version,
salt.salt_buf[0], salt.salt_buf[0],
salt.salt_buf[1], salt.salt_buf[1],
salt.salt_buf[2], salt.salt_buf[2],