mika/libnx
1
0
Fork 0
mirror of https://github.com/switchbrew/libnx.git synced 2025-06-22 21:02:39 +02:00
Code Issues Packages Projects Releases Wiki Activity

crypto: fix aes-cbc individual block decryption

Browse Source
This commit is contained in:
liamadvance 2023-10-19 23:10:43 +01:00 committed by fincs
parent ae491ce57b
commit 0094af6d29
1 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
nx/source/crypto/aes_cbc.c
View File

@ -261,8 +261,9 @@ static inline void _aes128CbcDecryptBlocks(Aes128CbcContext *ctx, u8 *dst_u8, co
AES_ENC_DEC_INPUT_ROUND_KEY(10)
);
/* Update IV. */
cur_iv = tmp0;
/* Do XOR for CBC. */
tmp0 = veorq_u8(tmp0, cur_iv);
cur_iv = block0;
/* Store to output. */
vst1q_u8(dst_u8, tmp0);
@ -478,8 +479,9 @@ static inline void _aes192CbcDecryptBlocks(Aes192CbcContext *ctx, u8 *dst_u8, co
AES_ENC_DEC_INPUT_ROUND_KEY(12)
);
/* Update IV. */
cur_iv = tmp0;
/* Do XOR for CBC. */
tmp0 = veorq_u8(tmp0, cur_iv);
cur_iv = block0;
/* Store to output. */
vst1q_u8(dst_u8, tmp0);
@ -711,8 +713,9 @@ static inline void _aes256CbcDecryptBlocks(Aes256CbcContext *ctx, u8 *dst_u8, co
AES_ENC_DEC_INPUT_ROUND_KEY(14)
);
/* Update IV. */
cur_iv = tmp0;
/* Do XOR for CBC. */
tmp0 = veorq_u8(tmp0, cur_iv);
cur_iv = block0;
/* Store to output. */
vst1q_u8(dst_u8, tmp0);