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metamask: double the CT len, set pw_min to 8

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This commit is contained in:
Gabriele Gristina 2021-08-31 16:40:11 +02:00
parent cb93875c32
commit 6cbc614826
3 changed files with 21 additions and 14 deletions
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2
OpenCL/m26600-pure.cl
View File

@ -34,7 +34,7 @@ typedef struct pbkdf2_sha256_aes_gcm
u32 salt_buf[64];
u32 iv_buf[4];
u32 iv_len;
u32 ct_buf[196];
u32 ct_buf[388];
u32 ct_len;
} pbkdf2_sha256_aes_gcm_t;

27
src/modules/module_26600.c
View File

@ -24,8 +24,8 @@ static const u32 OPTI_TYPE = OPTI_TYPE_ZERO_BYTE
| OPTI_TYPE_SLOW_HASH_SIMD_LOOP;
static const u64 OPTS_TYPE = OPTS_TYPE_PT_GENERATE_LE;
static const u32 SALT_TYPE = SALT_TYPE_EMBEDDED;
static const char *ST_PASS = "hashcat";
static const char *ST_HASH = "$metamask$AARgM5AgABE2eWgJcWAwQIAFmSYoASZVZBlAR4B0h2M=$8HrVMqsjfFTusMbegh+KWg==$7FPq7LjWe3t/TjDBtUwrJBpiG/Rdt+uf71dLCyUZd0pdtymBK6mSMZDyRfp/CzpjEPA1dU1BLDshcwM/1k6KdO//+mPWrgY4j49XTXIMnHNhJPfPv8s9rXiq8jLqetsStqtWmTZaD7fTtbzOYWR4gwQc98MxCnn/IrSnfCHungw1rLV5Xm0/hF7WfzFeEgcHknhJJP1xSeJCL9qI5DJ+lz7ksc0UVvHoiNJx8uvPBNkHpGQRNujwlnk=";
static const char *ST_PASS = "hashcat1";
static const char *ST_HASH = "$metamask$AFgHUzJ5IxdiMViSYBRxlWZWUCCGgWZwkGIUEpVnZFE=$xm1Fo3VPVa1cvVRWGYISMw==$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";
u32 module_attack_exec (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return ATTACK_EXEC; }
u32 module_dgst_pos0 (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra) { return DGST_POS0; }
@ -57,7 +57,7 @@ typedef struct pbkdf2_sha256_aes_gcm
u32 salt_buf[64];
u32 iv_buf[4];
u32 iv_len;
u32 ct_buf[196];
u32 ct_buf[388];
u32 ct_len;
} pbkdf2_sha256_aes_gcm_t;
@ -103,6 +103,13 @@ u64 module_tmp_size (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED c
return tmp_size;
}
u32 module_pw_min (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
const u32 pw_min = 8;
return pw_min;
}
u32 module_pw_max (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSED const user_options_t *user_options, MAYBE_UNUSED const user_options_extra_t *user_options_extra)
{
// this overrides the reductions of PW_MAX in case optimized kernel is selected
@ -119,7 +126,7 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
pbkdf2_sha256_aes_gcm_t *metamask = (pbkdf2_sha256_aes_gcm_t *) esalt_buf;
#define CT_MAX_LEN_BASE64 (((768+16) * 8) / 6) + 3
#define CT_MAX_LEN_BASE64 (((1536+16) * 8) / 6) + 3
token_t token;
@ -219,7 +226,7 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
tmp_len -= 16;
if (tmp_len < 30 || tmp_len > 768) return (PARSER_CT_LENGTH);
if (tmp_len < 30 || tmp_len > 1536) return (PARSER_CT_LENGTH);
memcpy ((u8 *) metamask->ct_buf, tmp_buf, tmp_len);
@ -253,9 +260,9 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
// salt
#define SALT_LEN_BASE64 ((32 * 8) / 6) + 3
#define IV_LEN_BASE64 ((16 * 8) / 6) + 3
#define CT_MAX_LEN_BASE64 (((768+16) * 8) / 6) + 3
#define SALT_LEN_BASE64 ((32 * 8) / 6) + 3
#define IV_LEN_BASE64 ((16 * 8) / 6) + 3
#define CT_MAX_LEN_BASE64 (((1536+16) * 8) / 6) + 3
u8 salt_buf[SALT_LEN_BASE64] = { 0 };
@ -282,7 +289,7 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
if ((ct_len % 4) > 0) j++;
u32 tmp_buf[196] = { 0 };
u32 tmp_buf[388] = { 0 };
for (u32 i = 0; i < j; i++) tmp_buf[i] = byte_swap_32 (metamask->ct_buf[i]);
@ -379,7 +386,7 @@ void module_init (module_ctx_t *module_ctx)
module_ctx->module_potfile_keep_all_hashes = MODULE_DEFAULT;
module_ctx->module_pwdump_column = MODULE_DEFAULT;
module_ctx->module_pw_max = module_pw_max;
module_ctx->module_pw_min = MODULE_DEFAULT;
module_ctx->module_pw_min = module_pw_min;
module_ctx->module_salt_max = MODULE_DEFAULT;
module_ctx->module_salt_min = MODULE_DEFAULT;
module_ctx->module_salt_type = module_salt_type;

6
tools/test_modules/m26600.pm
View File

@ -12,7 +12,7 @@ use Crypt::PBKDF2;
use Crypt::AuthEnc::GCM;
use MIME::Base64 qw (decode_base64 encode_base64);
sub module_constraints { [[0, 256], [64, 64], [-1, -1], [-1, -1], [-1, -1]] }
sub module_constraints { [[8, 256], [64, 64], [-1, -1], [-1, -1], [-1, -1]] }
sub module_generate_hash
{
@ -22,7 +22,7 @@ sub module_generate_hash
my $ct = shift;
my $ct_min_len = 30;
my $ct_max_len = 768;
my $ct_max_len = 1536;
my $kdf = Crypt::PBKDF2->new
(
@ -106,7 +106,7 @@ sub module_verify_hash
my $ct_len = length ($ct_bin);
my $ct_min_len = 30;
my $ct_max_len = 768;
my $ct_max_len = 1536;
return unless ($ct_len >= $ct_min_len && $ct_len <= $ct_max_len);