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Compilation fixes

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This commit is contained in:
Luca Deri
2020-08-28 13:03:06 +02:00
parent 31a05e18d1
commit 5a06abc75d
3 changed files with 13 additions and 13 deletions
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src/transform_aes.c
+6 -6
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@@ -30,8 +30,8 @@
#define AES_PREAMBLE_SIZE (AES_BLOCK_SIZE)
// cbc mode is being used with random value prepended to plaintext
// instead of iv so, actual iv is null_iv
const uint8_t null_iv[AES_IV_SIZE] = {0};
// instead of iv so, actual iv is aes_null_iv
const uint8_t aes_null_iv[AES_IV_SIZE] = {0};
typedef struct transop_aes {
aes_context_t *ctx;
@@ -98,7 +98,7 @@ static int transop_encode_aes(n2n_trans_op_t * arg,
// to slightly faster code than run-time dependant 'padding'
memset (assembly + idx, 0, AES_BLOCK_SIZE);
aes_cbc_encrypt(outbuf, assembly, padded_len, null_iv, priv->ctx);
aes_cbc_encrypt(outbuf, assembly, padded_len, aes_null_iv, priv->ctx);
if(padding) {
// exchange last two cipher blocks
@@ -153,15 +153,15 @@ static int transop_decode_aes(n2n_trans_op_t * arg,
// write new penultimate block from buf
memcpy(assembly + penultimate_block, buf, AES_BLOCK_SIZE);
// regular cbc decryption on the re-arranged ciphertext
aes_cbc_decrypt(assembly, assembly, in_len + AES_BLOCK_SIZE - rest, null_iv, priv->ctx);
aes_cbc_decrypt(assembly, assembly, in_len + AES_BLOCK_SIZE - rest, aes_null_iv, priv->ctx);
// check for expected zero padding and give a warning otherwise
if (memcmp(assembly + in_len, null_iv, AES_BLOCK_SIZE - rest)) {
if (memcmp(assembly + in_len, aes_null_iv, AES_BLOCK_SIZE - rest)) {
traceEvent(TRACE_WARNING, "transop_decode_aes payload decryption failed with unexpected cipher text stealing padding");
return -1;
}
} else {
// regular cbc decryption on multiple block-sized payload
aes_cbc_decrypt(assembly, inbuf, in_len, null_iv, priv->ctx);
aes_cbc_decrypt(assembly, inbuf, in_len, aes_null_iv, priv->ctx);
}
len = in_len - AES_PREAMBLE_SIZE;
memcpy(outbuf,