thac0/vim
1
0
Fork 0
forked from aniani/vim
Code Activity

Made crypt/decrypt faster.

Browse Source
This commit is contained in:
Bram Moolenaar
2010-06-01 23:37:39 +02:00
parent 8cd213c09a
commit 04c9bafa71
6 changed files with 89 additions and 69 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
src/blowfish.c
View File

@@ -18,6 +18,7 @@
#define ARRAY_LENGTH(A) (sizeof(A)/sizeof(A[0]))
#define BF_BLOCK 8
#define BF_BLOCK_MASK 7
#define BF_OFB_LEN (8*(BF_BLOCK))
typedef union {
@@ -563,14 +564,14 @@ bf_ofb_update(c)
int
bf_ranbyte()
{
int current_byte = randbyte_offset++;
int current_block = (current_byte / BF_BLOCK) * BF_BLOCK;
int b;
if (randbyte_offset == BF_OFB_LEN)
if ((randbyte_offset & BF_BLOCK_MASK) == 0)
bf_e_cblock(&ofb_buffer[randbyte_offset]);
b = ofb_buffer[randbyte_offset];
if (++randbyte_offset == BF_OFB_LEN)
randbyte_offset = 0;
if ((current_byte % BF_BLOCK) == 0)
bf_e_cblock(&ofb_buffer[current_block]);
return ofb_buffer[current_byte];
return b;
}
/*