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authorOtavio Salvador <otavio@ossystems.com.br>2019-03-28 10:47:24 -0300
committerGitHub <noreply@github.com>2019-03-28 10:47:24 -0300
commit0a8ab17689e628c84a666195bfc6ab85d11cf057 (patch)
tree01630dc4a6935df99bf7d11d34ff8d384fed86e2 /crypto/pcbc.c
parent1e71d8c630cbc0d1f5d762fd019690b5cdb880ae (diff)
parent32aca03c2ce868d3412da0bb6ce6798c7bea357e (diff)
Merge pull request #46 from toradex/4.9-2.3.x-imx
4.9 2.3.x imx
Diffstat (limited to 'crypto/pcbc.c')
-rw-r--r--crypto/pcbc.c14
1 files changed, 4 insertions, 10 deletions
diff --git a/crypto/pcbc.c b/crypto/pcbc.c
index f654965f0933..de81f716cf26 100644
--- a/crypto/pcbc.c
+++ b/crypto/pcbc.c
@@ -52,7 +52,7 @@ static int crypto_pcbc_encrypt_segment(struct blkcipher_desc *desc,
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
u8 *dst = walk->dst.virt.addr;
- u8 *iv = walk->iv;
+ u8 * const iv = walk->iv;
do {
crypto_xor(iv, src, bsize);
@@ -76,7 +76,7 @@ static int crypto_pcbc_encrypt_inplace(struct blkcipher_desc *desc,
int bsize = crypto_cipher_blocksize(tfm);
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
- u8 *iv = walk->iv;
+ u8 * const iv = walk->iv;
u8 tmpbuf[bsize];
do {
@@ -89,8 +89,6 @@ static int crypto_pcbc_encrypt_inplace(struct blkcipher_desc *desc,
src += bsize;
} while ((nbytes -= bsize) >= bsize);
- memcpy(walk->iv, iv, bsize);
-
return nbytes;
}
@@ -130,7 +128,7 @@ static int crypto_pcbc_decrypt_segment(struct blkcipher_desc *desc,
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
u8 *dst = walk->dst.virt.addr;
- u8 *iv = walk->iv;
+ u8 * const iv = walk->iv;
do {
fn(crypto_cipher_tfm(tfm), dst, src);
@@ -142,8 +140,6 @@ static int crypto_pcbc_decrypt_segment(struct blkcipher_desc *desc,
dst += bsize;
} while ((nbytes -= bsize) >= bsize);
- memcpy(walk->iv, iv, bsize);
-
return nbytes;
}
@@ -156,7 +152,7 @@ static int crypto_pcbc_decrypt_inplace(struct blkcipher_desc *desc,
int bsize = crypto_cipher_blocksize(tfm);
unsigned int nbytes = walk->nbytes;
u8 *src = walk->src.virt.addr;
- u8 *iv = walk->iv;
+ u8 * const iv = walk->iv;
u8 tmpbuf[bsize];
do {
@@ -169,8 +165,6 @@ static int crypto_pcbc_decrypt_inplace(struct blkcipher_desc *desc,
src += bsize;
} while ((nbytes -= bsize) >= bsize);
- memcpy(walk->iv, iv, bsize);
-
return nbytes;
}