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Merge pull request wolfSSL#8099 from dgarske/armasm_aes
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Fix issue with ARM ASM with AES CFB/OFB not initializing the "left" member
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@JacobBarthelmeh
JacobBarthelmeh authored Oct 22, 2024
2 parents 846ef15 + 5a0bb3a commit 43fe46c
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Showing 7 changed files with 33 additions and 26 deletions.
27 changes: 14 additions & 13 deletions wolfcrypt/src/aes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3726,8 +3726,8 @@ static WARN_UNUSED_RESULT int wc_AesDecrypt(
#if !defined(WOLFSSL_STM32_CUBEMX) || defined(STM32_HAL_V2)
ByteReverseWords(rk, rk, keylen);
#endif
#if defined(WOLFSSL_AES_CFB) || defined(WOLFSSL_AES_COUNTER) || \
defined(WOLFSSL_AES_OFB)
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif
return wc_AesSetIV(aes, iv);
Expand Down Expand Up @@ -3807,8 +3807,8 @@ static WARN_UNUSED_RESULT int wc_AesDecrypt(
if (iv)
XMEMCPY(aes->reg, iv, AES_BLOCK_SIZE);

#if defined(WOLFSSL_AES_CFB) || defined(WOLFSSL_AES_COUNTER) || \
defined(WOLFSSL_AES_OFB)
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif

Expand Down Expand Up @@ -3838,8 +3838,8 @@ static WARN_UNUSED_RESULT int wc_AesDecrypt(
aes->rounds = keylen/4 + 6;
XMEMCPY(aes->key, userKey, keylen);

#if defined(WOLFSSL_AES_CFB) || defined(WOLFSSL_AES_COUNTER) || \
defined(WOLFSSL_AES_OFB)
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif

Expand Down Expand Up @@ -3890,8 +3890,8 @@ static WARN_UNUSED_RESULT int wc_AesDecrypt(
if (rk == NULL)
return BAD_FUNC_ARG;

#if defined(WOLFSSL_AES_CFB) || defined(WOLFSSL_AES_COUNTER) || \
defined(WOLFSSL_AES_OFB)
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif

Expand Down Expand Up @@ -3971,8 +3971,8 @@ static WARN_UNUSED_RESULT int wc_AesDecrypt(
XMEMCPY(aes->key, userKey, keylen);
ret = nrf51_aes_set_key(userKey);

#if defined(WOLFSSL_AES_CFB) || defined(WOLFSSL_AES_COUNTER) || \
defined(WOLFSSL_AES_OFB)
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif

Expand Down Expand Up @@ -4028,7 +4028,8 @@ static WARN_UNUSED_RESULT int wc_AesDecrypt(
aes->rounds = keylen/4 + 6;

XMEMCPY(aes->key, userKey, keylen);
#if defined(WOLFSSL_AES_COUNTER)
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif
return wc_AesSetIV(aes, iv);
Expand Down Expand Up @@ -4520,8 +4521,8 @@ static void AesSetKey_C(Aes* aes, const byte* key, word32 keySz, int dir)
#endif
}

#if defined(WOLFSSL_AES_CFB) || defined(WOLFSSL_AES_COUNTER) || \
defined(WOLFSSL_AES_OFB)
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif

Expand Down
3 changes: 2 additions & 1 deletion wolfcrypt/src/port/Renesas/renesas_fspsm_aes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -795,7 +795,8 @@ int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen,
return BAD_FUNC_ARG;
}

#ifdef WOLFSSL_AES_COUNTER
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif

Expand Down
8 changes: 5 additions & 3 deletions wolfcrypt/src/port/arm/armv8-aes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -201,7 +201,8 @@ int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen,
}
#endif

#ifdef WOLFSSL_AES_COUNTER
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif /* WOLFSSL_AES_COUNTER */

Expand Down Expand Up @@ -16581,9 +16582,10 @@ int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen,
XMEMCPY(aes->devKey, userKey, keylen);
}
#endif
#ifdef WOLFSSL_AES_COUNTER
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif /* WOLFSSL_AES_COUNTER */
#endif

aes->keylen = keylen;
aes->rounds = keylen/4 + 6;
Expand Down
3 changes: 2 additions & 1 deletion wolfcrypt/src/port/caam/caam_aes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -93,7 +93,8 @@ int wc_AesSetKey(Aes* aes, const byte* key, word32 len,
return ret;
}

#ifdef WOLFSSL_AES_COUNTER
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif

Expand Down
3 changes: 2 additions & 1 deletion wolfcrypt/src/port/devcrypto/devcrypto_aes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -125,7 +125,8 @@ int wc_AesSetKey(Aes* aes, const byte* userKey, word32 keylen,
aes->keylen = keylen;
aes->rounds = keylen/4 + 6;

#ifdef WOLFSSL_AES_COUNTER
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif
aes->ctx.cfd = -1;
Expand Down
12 changes: 6 additions & 6 deletions wolfcrypt/src/port/riscv/riscv-64-aes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -498,8 +498,8 @@ int wc_AesSetKey(Aes* aes, const byte* key, word32 keyLen, const byte* iv,
if (ret == 0) {
/* Finish setting the AES object. */
aes->keylen = keyLen;
#if defined(WOLFSSL_AES_CFB) || defined(WOLFSSL_AES_COUNTER) || \
defined(WOLFSSL_AES_OFB)
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif
}
Expand Down Expand Up @@ -1770,8 +1770,8 @@ int wc_AesSetKey(Aes* aes, const byte* key, word32 keyLen, const byte* iv,
if (ret == 0) {
/* Finish setting the AES object. */
aes->keylen = keyLen;
#if defined(WOLFSSL_AES_CFB) || defined(WOLFSSL_AES_COUNTER) || \
defined(WOLFSSL_AES_OFB)
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif
}
Expand Down Expand Up @@ -2978,8 +2978,8 @@ int wc_AesSetKey(Aes* aes, const byte* key, word32 keyLen, const byte* iv,

if (ret == 0) {
/* Initialize fields. */
#if defined(WOLFSSL_AES_CFB) || defined(WOLFSSL_AES_COUNTER) || \
defined(WOLFSSL_AES_OFB)
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif
aes->keylen = (int)keyLen;
Expand Down
3 changes: 2 additions & 1 deletion wolfcrypt/src/port/ti/ti-aes.c
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Original file line number Diff line number Diff line change
Expand Up @@ -99,7 +99,8 @@ int wc_AesSetKey(Aes* aes, const byte* key, word32 len, const byte* iv, int dir)
aes->rounds = len / 4 + 6;

XMEMCPY(aes->key, key, len);
#ifdef WOLFSSL_AES_COUNTER
#if defined(WOLFSSL_AES_COUNTER) || defined(WOLFSSL_AES_CFB) || \
defined(WOLFSSL_AES_OFB) || defined(WOLFSSL_AES_XTS)
aes->left = 0;
#endif
return AesSetIV(aes, iv);
Expand Down

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