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-rw-r--r--src/box.c123
1 files changed, 51 insertions, 72 deletions
diff --git a/src/box.c b/src/box.c
index 75d471d..9610a93 100644
--- a/src/box.c
+++ b/src/box.c
@@ -49,10 +49,7 @@ static AesNI_StatusCode aesni_box_encrypt_block_ecb(
AesNI_ErrorDetails* err_details)
{
return box->algorithm->encrypt_block(
- input,
- &box->encrypt_params,
- output,
- err_details);
+ input, &box->encrypt_params, output, err_details);
}
static AesNI_StatusCode aesni_box_encrypt_block_cbc(
@@ -62,21 +59,14 @@ static AesNI_StatusCode aesni_box_encrypt_block_cbc(
AesNI_ErrorDetails* err_details)
{
AesNI_StatusCode status = AESNI_SUCCESS;
-
AesNI_BoxBlock xored_input = *input;
- status = box->algorithm->xor_block(
- &xored_input,
- &box->iv,
- err_details);
- if (aesni_is_error(status))
+
+ if (aesni_is_error(status = box->algorithm->xor_block(
+ &xored_input, &box->iv, err_details)))
return status;
- status = box->algorithm->encrypt_block(
- &xored_input,
- &box->encrypt_params,
- output,
- err_details);
- if (aesni_is_error(status))
+ if (aesni_is_error(status = box->algorithm->encrypt_block(
+ &xored_input, &box->encrypt_params, output, err_details)))
return status;
box->iv = *output;
@@ -89,16 +79,14 @@ static AesNI_StatusCode aesni_box_encrypt_block_cfb(
AesNI_BoxBlock* output,
AesNI_ErrorDetails* err_details)
{
- AesNI_StatusCode status = box->algorithm->encrypt_block(
- &box->iv,
- &box->encrypt_params,
- output,
- err_details);
- if (aesni_is_error(status))
+ AesNI_StatusCode status = AESNI_SUCCESS;
+
+ if (aesni_is_error(status = box->algorithm->encrypt_block(
+ &box->iv, &box->encrypt_params, output, err_details)))
return status;
- status = box->algorithm->xor_block(output, input, err_details);
- if (aesni_is_error(status))
+ if (aesni_is_error(status = box->algorithm->xor_block(
+ output, input, err_details)))
return status;
box->iv = *output;
@@ -111,18 +99,16 @@ static AesNI_StatusCode aesni_box_encrypt_block_ofb(
AesNI_BoxBlock* output,
AesNI_ErrorDetails* err_details)
{
- AesNI_StatusCode status = box->algorithm->encrypt_block(
- &box->iv,
- &box->encrypt_params,
- &box->iv,
- err_details);
- if (aesni_is_error(status))
+ AesNI_StatusCode status = AESNI_SUCCESS;
+
+ if (aesni_is_error(status = box->algorithm->encrypt_block(
+ &box->iv, &box->encrypt_params, &box->iv, err_details)))
return status;
*output = box->iv;
- status = box->algorithm->xor_block(output, input, err_details);
- if (aesni_is_error(status))
+ if (aesni_is_error(status = box->algorithm->xor_block(
+ output, input, err_details)))
return status;
return status;
@@ -134,19 +120,21 @@ static AesNI_StatusCode aesni_box_encrypt_block_ctr(
AesNI_BoxBlock* output,
AesNI_ErrorDetails* err_details)
{
- AesNI_StatusCode status = box->algorithm->encrypt_block(
- &box->iv,
- &box->encrypt_params,
- output,
- err_details);
- if (aesni_is_error(status))
+ AesNI_StatusCode status = AESNI_SUCCESS;
+
+ if (aesni_is_error(status = box->algorithm->encrypt_block(
+ &box->iv, &box->encrypt_params, output, err_details)))
return status;
- status = box->algorithm->xor_block(output, input, err_details);
- if (aesni_is_error(status))
+ if (aesni_is_error(status = box->algorithm->xor_block(
+ output, input, err_details)))
return status;
- return box->algorithm->next_counter(&box->iv, err_details);
+ if (aesni_is_error(status = box->algorithm->next_counter(
+ &box->iv, err_details)))
+ return status;
+
+ return status;
}
typedef AesNI_StatusCode (*AesNI_BoxEncryptBlockInMode)(
@@ -170,7 +158,8 @@ AesNI_StatusCode aesni_box_encrypt_block(
AesNI_BoxBlock* output,
AesNI_ErrorDetails* err_details)
{
- return aesni_box_encrypt_block_in_mode[box->mode](box, input, output, err_details);
+ return aesni_box_encrypt_block_in_mode[box->mode](
+ box, input, output, err_details);
}
static AesNI_StatusCode aesni_box_decrypt_block_ecb(
@@ -180,10 +169,7 @@ static AesNI_StatusCode aesni_box_decrypt_block_ecb(
AesNI_ErrorDetails* err_details)
{
return box->algorithm->decrypt_block(
- input,
- &box->decrypt_params,
- output,
- err_details);
+ input, &box->decrypt_params, output, err_details);
}
static AesNI_StatusCode aesni_box_decrypt_block_cbc(
@@ -192,19 +178,14 @@ static AesNI_StatusCode aesni_box_decrypt_block_cbc(
AesNI_BoxBlock* output,
AesNI_ErrorDetails* err_details)
{
- AesNI_StatusCode status = box->algorithm->decrypt_block(
- input,
- &box->decrypt_params,
- output,
- err_details);
- if (aesni_is_error(status))
+ AesNI_StatusCode status = AESNI_SUCCESS;
+
+ if (aesni_is_error(status = box->algorithm->decrypt_block(
+ input, &box->decrypt_params, output, err_details)))
return status;
- status = box->algorithm->xor_block(
- output,
- &box->iv,
- err_details);
- if (aesni_is_error(status))
+ if (aesni_is_error(status = box->algorithm->xor_block(
+ output, &box->iv, err_details)))
return status;
box->iv = *input;
@@ -217,19 +198,14 @@ static AesNI_StatusCode aesni_box_decrypt_block_cfb(
AesNI_BoxBlock* output,
AesNI_ErrorDetails* err_details)
{
- AesNI_StatusCode status = box->algorithm->encrypt_block(
- &box->iv,
- &box->encrypt_params,
- output,
- err_details);
- if (aesni_is_error(status))
+ AesNI_StatusCode status = AESNI_SUCCESS;
+
+ if (aesni_is_error(status = box->algorithm->encrypt_block(
+ &box->iv, &box->encrypt_params, output, err_details)))
return status;
- status = box->algorithm->xor_block(
- output,
- input,
- err_details);
- if (aesni_is_error(status))
+ if (aesni_is_error(status = box->algorithm->xor_block(
+ output, input, err_details)))
return status;
box->iv = *input;
@@ -253,7 +229,8 @@ AesNI_StatusCode aesni_box_decrypt_block(
AesNI_BoxBlock* output,
AesNI_ErrorDetails* err_details)
{
- return aesni_box_decrypt_block_in_mode[box->mode](box, input, output, err_details);
+ return aesni_box_decrypt_block_in_mode[box->mode](
+ box, input, output, err_details);
}
static AesNI_StatusCode aesni_box_get_encrypted_buffer_size(
@@ -289,7 +266,8 @@ static AesNI_StatusCode aesni_box_get_encrypted_buffer_size(
return status;
default:
- return aesni_error_not_implemented(err_details, "unsupported mode of operation");
+ return aesni_error_not_implemented(
+ err_details, "unsupported mode of operation");
}
}
@@ -439,7 +417,8 @@ static AesNI_StatusCode aesni_box_get_decrypted_buffer_size(
return status;
default:
- return aesni_error_not_implemented(err_details, "unsupported mode of operation");
+ return aesni_error_not_implemented(
+ err_details, "unsupported mode of operation");
}
}
@@ -539,7 +518,7 @@ AesNI_StatusCode aesni_box_decrypt_buffer(
return aesni_error_invalid_pkcs7_padding(err_details);
for (size_t i = 1; i < padding_size; ++i)
- if (((unsigned char*) dest)[0 - i] != padding_size)
+ if (((unsigned char*) dest)[-1 - i] != padding_size)
return aesni_error_invalid_pkcs7_padding(err_details);
*dest_size -= padding_size;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 15:04:01 +0000