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Added support to use 'John the Ripper' hash format with hash-type 13100
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@ -18,6 +18,7 @@
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- Added support to building universal macOS binary on Apple Silicon
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- Added hex encoding format for --separator option
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- Added password candidates range to --status-json output
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- Added support to use 'John the Ripper' hash format with hash-type 13100
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##
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## Bugs
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@ -48,9 +48,11 @@ typedef struct krb5tgs
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u32 edata2[5120];
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u32 edata2_len;
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u32 format;
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} krb5tgs_t;
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static const char *SIGNATURE_KRB5TGS = "$krb5tgs$23$";
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static const char *SIGNATURE_KRB5TGS = "$krb5tgs$";
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char *module_jit_build_options (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra, MAYBE_UNUSED const hashes_t *hashes, MAYBE_UNUSED const hc_device_param_t *device_param)
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{
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@ -117,33 +119,90 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
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token.signatures_cnt = 1;
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token.signatures_buf[0] = SIGNATURE_KRB5TGS;
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token.len[0] = 12;
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token.len[0] = 9;
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token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
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| TOKEN_ATTR_VERIFY_SIGNATURE;
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/**
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* $krb5tgs$23$checksum$edata2
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* $krb5tgs$23$*user*realm*spn*$checksum$edata2
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* hc
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* format 1: $krb5tgs$23$*user*realm*spn*$checksum$edata2
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* format 2: $krb5tgs$23$checksum$edata2
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*
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* jtr
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* format 3: $krb5tgs$spn$checksum$edata2
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*/
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if (line_len < 16) return (PARSER_SALT_LENGTH);
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if (line_len < 9) return (PARSER_SALT_LENGTH);
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if (line_buf[12] == '*')
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if (line_buf[9] == '2' && line_buf[10] == '3' && line_buf[11] == '$')
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{
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char *account_info_start = (char *) line_buf + 12; // we want the * char included
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char *account_info_stop = strchr ((const char *) account_info_start + 1, '*');
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if (line_buf[12] == '*')
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{
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char *account_info_start = (char *) line_buf + 12; // we want the * char included
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if (account_info_stop == NULL) return (PARSER_SEPARATOR_UNMATCHED);
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char *account_info_stop = strchr ((const char *) account_info_start + 1, '*');
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account_info_stop++; // we want the * char included
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account_info_stop++; // we want the $ char included
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if (account_info_stop == NULL) return (PARSER_SEPARATOR_UNMATCHED);
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const int account_info_len = account_info_stop - account_info_start;
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account_info_stop++; // we want the * char included
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account_info_stop++; // we want the $ char included
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const int account_info_len = account_info_stop - account_info_start;
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token.token_cnt = 5;
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token.sep[1] = '$';
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token.len_min[1] = 2;
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token.len_max[1] = 2;
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token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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token.len[2] = account_info_len;
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token.attr[2] = TOKEN_ATTR_FIXED_LENGTH;
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token.sep[3] = '$';
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token.len_min[3] = 32;
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token.len_max[3] = 32;
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token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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token.sep[4] = '$';
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token.len_min[4] = 64;
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token.len_max[4] = 40960;
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token.attr[4] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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}
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else
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{
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token.token_cnt = 4;
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token.sep[1] = '$';
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token.len_min[1] = 2;
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token.len_max[1] = 2;
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token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_DIGIT;
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token.sep[2] = '$';
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token.len_min[2] = 32;
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token.len_max[2] = 32;
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token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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token.sep[3] = '$';
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token.len_min[3] = 64;
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token.len_max[3] = 40960;
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token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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}
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}
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else
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{
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token.token_cnt = 4;
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token.len[1] = account_info_len;
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token.attr[1] = TOKEN_ATTR_FIXED_LENGTH;
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token.sep[1] = ':';
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token.len_min[1] = 0;
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token.len_max[1] = 2048;
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token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH;
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token.sep[2] = '$';
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token.len_min[2] = 32;
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@ -157,22 +216,6 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
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token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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}
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else
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{
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token.token_cnt = 3;
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token.sep[1] = '$';
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token.len_min[1] = 32;
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token.len_max[1] = 32;
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token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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token.sep[2] = '$';
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token.len_min[2] = 64;
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token.len_max[2] = 40960;
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token.attr[2] = TOKEN_ATTR_VERIFY_LENGTH
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| TOKEN_ATTR_VERIFY_HEX;
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}
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const int rc_tokenizer = input_tokenizer ((const u8 *) line_buf, line_len, &token);
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@ -183,7 +226,30 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
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int data_len;
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if (line_buf[12] == '*')
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if (line_buf[9] == '2' && line_buf[10] == '3' && line_buf[11] == '$')
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{
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if (line_buf[12] == '*')
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{
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checksum_pos = token.buf[3];
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data_pos = token.buf[4];
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data_len = token.len[4];
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memcpy (krb5tgs->account_info, token.buf[2], token.len[2]);
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krb5tgs->format = 1;
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}
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else
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{
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checksum_pos = token.buf[2];
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data_pos = token.buf[3];
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data_len = token.len[3];
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krb5tgs->account_info[0] = 0;
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krb5tgs->format = 2;
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}
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}
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else
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{
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checksum_pos = token.buf[2];
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@ -191,15 +257,7 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
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data_len = token.len[3];
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memcpy (krb5tgs->account_info, token.buf[1], token.len[1]);
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}
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else
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{
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checksum_pos = token.buf[1];
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data_pos = token.buf[2];
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data_len = token.len[2];
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krb5tgs->account_info[0] = 0;
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krb5tgs->format = 3;
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}
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krb5tgs->checksum[0] = hex_to_u32 (checksum_pos + 0);
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@ -251,14 +309,32 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
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sprintf (data + j, "%02x", ptr_edata2[i]);
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}
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const int line_len = snprintf (line_buf, line_size, "%s%s%08x%08x%08x%08x$%s",
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SIGNATURE_KRB5TGS,
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(char *) krb5tgs->account_info,
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byte_swap_32 (krb5tgs->checksum[0]),
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byte_swap_32 (krb5tgs->checksum[1]),
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byte_swap_32 (krb5tgs->checksum[2]),
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byte_swap_32 (krb5tgs->checksum[3]),
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data);
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int line_len;
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// preserve the input hash format
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if (krb5tgs->format != 3) // hc
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{
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line_len = snprintf (line_buf, line_size, "%s23$%s%08x%08x%08x%08x$%s",
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SIGNATURE_KRB5TGS,
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(char *) krb5tgs->account_info,
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byte_swap_32 (krb5tgs->checksum[0]),
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byte_swap_32 (krb5tgs->checksum[1]),
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byte_swap_32 (krb5tgs->checksum[2]),
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byte_swap_32 (krb5tgs->checksum[3]),
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data);
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}
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else // jtr
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{
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line_len = snprintf (line_buf, line_size, "%s%s:%08x%08x%08x%08x$%s",
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SIGNATURE_KRB5TGS,
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(char *) krb5tgs->account_info,
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byte_swap_32 (krb5tgs->checksum[0]),
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byte_swap_32 (krb5tgs->checksum[1]),
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byte_swap_32 (krb5tgs->checksum[2]),
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byte_swap_32 (krb5tgs->checksum[3]),
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data);
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}
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return line_len;
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}
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