Remove invalid buffer overflow check
Signed-off-by: gabor-mezei-arm <gabor.mezei@arm.com>
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index d3f7c2e..6e73d12 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -3513,13 +3513,6 @@
key_type = slot->attr.type;
iv_length = PSA_CIPHER_IV_LENGTH( key_type, alg );
- if( output_size < PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg,
- input_length ) )
- {
- status = PSA_ERROR_BUFFER_TOO_SMALL;
- goto exit;
- }
-
if( iv_length > 0 )
{
if( output_size < iv_length )
@@ -3577,13 +3570,6 @@
goto exit;
}
- if( output_size < PSA_CIPHER_DECRYPT_OUTPUT_SIZE( slot->attr.type, alg,
- input_length ) )
- {
- status = PSA_ERROR_BUFFER_TOO_SMALL;
- goto exit;
- }
-
status = psa_driver_wrapper_cipher_decrypt(
&attributes, slot->key.data, slot->key.bytes,
alg, input, input_length,
diff --git a/library/psa_crypto_cipher.c b/library/psa_crypto_cipher.c
index 754345e..9bb21a0 100644
--- a/library/psa_crypto_cipher.c
+++ b/library/psa_crypto_cipher.c
@@ -532,11 +532,6 @@
if( status != PSA_SUCCESS )
goto exit;
- if( output_size < accumulated_length )
- {
- status = PSA_ERROR_BUFFER_TOO_SMALL;
- goto exit;
- }
status = cipher_finish( &operation, output + accumulated_length,
output_size - accumulated_length, &olength );
diff --git a/library/psa_crypto_cipher.h b/library/psa_crypto_cipher.h
index 39e5688..5971e8d 100644
--- a/library/psa_crypto_cipher.h
+++ b/library/psa_crypto_cipher.h
@@ -223,13 +223,7 @@
* \c key_type is the type of the key identified
* by \p key and \p alg is the cipher algorithm
* to compute.
- * \param[in] output_size Size of the \p output buffer in bytes. The core
- * has checked that this size is greater or equal to
- * PSA_CIPHER_ENCRYPT_OUTPUT_SIZE( key_type, alg, input_length )
- * where \c key_type is the type of the key
- * identified by \p key, \p alg is the cipher
- * algorithm to compute and \p input_length is the
- * size of the \p input buffer.
+ * \param[in] output_size Size of the \p output buffer in bytes.
* \param[out] output_length On success, the number of bytes that make up
* the returned output. Initialized to zero
* by the core.
@@ -279,13 +273,6 @@
* \param[in] input_length Size of the \p input buffer in bytes.
* \param[out] output Buffer where the output is to be written.
* \param[in] output_size Size of the \p output buffer in bytes.
- * The core has checked that this size is
- * greater or equal to
- * PSA_CIPHER_DECRYPT_OUTPUT_SIZE( key_type, alg, input_length )
- * where \c key_type is the type of the key
- * identified by \p key, \p alg is the cipher
- * algorithm to compute and \p input_length is the
- * size of the \p input buffer.
* \param[out] output_length On success, the number of bytes that make up
* the returned output. Initialized to zero
* by the core.