arno/hashcat
1
0
Fork 0
mirror of https://github.com/hashcat/hashcat.git synced 2024-11-22 16:18:09 +00:00
Code Issues Releases Wiki Activity

Improve support for enc_len and aad_len in AES_GCM_GHASH to actually allow 32 bit value (before was only 29 bit)

Browse Source
This commit is contained in:
Jens Steube 2022-03-17 09:02:11 +01:00
parent 58205847f6
commit ab300310a0
1 changed files with 10 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
OpenCL/inc_cipher_aes-gcm.cl
View File

@ -273,10 +273,11 @@ DECLSPEC void AES_GCM_GHASH (PRIVATE_AS const u32 *subkey, PRIVATE_AS const u32
u32 len_buf[4];
len_buf[0] = 0;
len_buf[1] = aad_len * 8;
len_buf[2] = 0;
len_buf[3] = enc_len * 8;
// still not fully correct if len > 32 bit
len_buf[0] = aad_len >> 29;
len_buf[1] = aad_len << 3;
len_buf[2] = enc_len >> 29;
len_buf[3] = enc_len << 3;
AES_GCM_ghash (subkey, len_buf, 16, out);
}
@ -294,10 +295,11 @@ DECLSPEC void AES_GCM_GHASH_GLOBAL (PRIVATE_AS const u32 *subkey, PRIVATE_AS con
u32 len_buf[4];
len_buf[0] = 0;
len_buf[1] = aad_len * 8;
len_buf[2] = 0;
len_buf[3] = enc_len * 8;
// still not fully correct if len > 32 bit
len_buf[0] = aad_len >> 29;
len_buf[1] = aad_len << 3;
len_buf[2] = enc_len >> 29;
len_buf[3] = enc_len << 3;
AES_GCM_ghash (subkey, len_buf, 16, out);
}