arm/arm64/crypto: assure that ECB modes don't require an IV

ECB modes don't use an initialization vector. The kernel /proc/crypto interface doesn't reflect this properly.

Signed-off-by Jeremy Linton <[email protected]>

---
 arch/arm/crypto/aes-ce-glue.c | 4 ++--
 arch/arm64/crypto/aes-glue.c  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

arch/arm/crypto/aes-ce-glue.c +2 -2

index b445a5d..89a3a3e 100644
@@ -364,7 +364,7 @@ static struct crypto_alg aes_algs[] = { {
        .cra_blkcipher = {
                .min_keysize    = AES_MIN_KEY_SIZE,
                .max_keysize    = AES_MAX_KEY_SIZE,
-               .ivsize         = AES_BLOCK_SIZE,
+               .ivsize         = 0,
                .setkey         = ce_aes_setkey,
                .encrypt        = ecb_encrypt,
                .decrypt        = ecb_decrypt,

@@ -441,7 +441,7 @@ static struct crypto_alg aes_algs[] = { {
        .cra_ablkcipher = {
                .min_keysize    = AES_MIN_KEY_SIZE,
                .max_keysize    = AES_MAX_KEY_SIZE,
-               .ivsize         = AES_BLOCK_SIZE,
+               .ivsize         = 0,
                .setkey         = ablk_set_key,
                .encrypt        = ablk_encrypt,
                .decrypt        = ablk_decrypt,

arch/arm64/crypto/aes-glue.c +2 -3

index 05d9e16..7a3d22a 100644
@@ -294,7 +294,7 @@ static struct crypto_alg aes_algs[] = { {
        .cra_blkcipher = {
                .min_keysize    = AES_MIN_KEY_SIZE,
                .max_keysize    = AES_MAX_KEY_SIZE,
-               .ivsize         = AES_BLOCK_SIZE,
+               .ivsize         = 0,
                .setkey         = aes_setkey,
                .encrypt        = ecb_encrypt,
                .decrypt        = ecb_decrypt,

@@ -371,7 +371,7 @@ static struct crypto_alg aes_algs[] = { {
        .cra_ablkcipher = {
                .min_keysize    = AES_MIN_KEY_SIZE,
                .max_keysize    = AES_MAX_KEY_SIZE,
-               .ivsize         = AES_BLOCK_SIZE,
+               .ivsize         = 0,
                .setkey         = ablk_set_key,
                .encrypt        = ablk_encrypt,
                .decrypt        = ablk_decrypt,
--

2.4.3

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel at lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

Quoted 4 lines · Jeremy Linton

ECB modes don't use an initialization vector. The kernel /proc/crypto interface doesn't reflect this properly.

Signed-off-by Jeremy Linton <[email protected]>

Thanks for spotting that!

Acked-by Ard Biesheuvel <[email protected]>