arno/hashcat
1
0
Fork 0
mirror of https://github.com/hashcat/hashcat.git synced 2025-07-14 02:28:25 +00:00
Code Issues Releases Wiki Activity

added comments on speeding up the attack by reducing the ciphertext buffersize

Browse Source
This commit is contained in:
Your Name 2023-02-26 13:52:23 +01:00
parent 141b0289b1
commit dbe99851ec
2 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
OpenCL/m26610-pure.cl
View File

@ -34,7 +34,7 @@ typedef struct pbkdf2_sha256_aes_gcm
u32 salt_buf[64]; u32 salt_buf[64];
u32 iv_buf[4]; u32 iv_buf[4];
u32 iv_len; u32 iv_len;
u32 ct_buf[784]; u32 ct_buf[784]; // TODO this can be smaller and would speedup the attack, only 64 bytes of ciphertext are allowed
u32 ct_len; u32 ct_len;
} pbkdf2_sha256_aes_gcm_t; } pbkdf2_sha256_aes_gcm_t;

8
src/modules/module_26610.c
View File

@ -60,7 +60,7 @@ typedef struct pbkdf2_sha256_aes_gcm
u32 salt_buf[64]; u32 salt_buf[64];
u32 iv_buf[4]; u32 iv_buf[4];
u32 iv_len; u32 iv_len;
u32 ct_buf[784]; u32 ct_buf[784]; // TODO this can be smaller and would speedup the attack, only 64 bytes of ciphertext are allowed
u32 ct_len; u32 ct_len;
} pbkdf2_sha256_aes_gcm_t; } pbkdf2_sha256_aes_gcm_t;
@ -129,7 +129,7 @@ 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; pbkdf2_sha256_aes_gcm_t *metamask = (pbkdf2_sha256_aes_gcm_t *) esalt_buf;
#define CT_MAX_LEN_BASE64 (((3136+16) * 8) / 6) + 3 #define CT_MAX_LEN_BASE64 (((3136+16) * 8) / 6) + 3 // TODO this can be smaller and would speedup the attack, only 64 bytes of ciphertext are allowed
hc_token_t token; hc_token_t token;
@ -156,7 +156,7 @@ int module_hash_decode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
token.sep[3] = '$'; token.sep[3] = '$';
token.len_min[3] = 32; token.len_min[3] = 32;
token.len_max[3] = 100; token.len_max[3] = 100; // TODO this can be smaller and would speedup the attack, only 64 bytes of ciphertext are allowed
token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH token.attr[3] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_BASE64A; | TOKEN_ATTR_VERIFY_BASE64A;
@ -278,7 +278,7 @@ int module_hash_encode (MAYBE_UNUSED const hashconfig_t *hashconfig, MAYBE_UNUSE
if ((ct_len % 4) > 0) j++; if ((ct_len % 4) > 0) j++;
u32 tmp_buf[784] = { 0 }; u32 tmp_buf[784] = { 0 }; // TODO this can be smaller and would speedup the attack, only 64 bytes of ciphertext are allowed
for (u32 i = 0; i < j; i++) tmp_buf[i] = byte_swap_32 (metamask->ct_buf[i]); for (u32 i = 0; i < j; i++) tmp_buf[i] = byte_swap_32 (metamask->ct_buf[i]);