On Wed, 11 May 2016, David Howells wrote:
Provide a query function for the software public key implementation. This
permits information about such a key to be obtained using
query_asymmetric_key() or KEYCTL_PKEY_QUERY.
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
---
crypto/asymmetric_keys/public_key.c | 96 ++++++++++++++++++++++++++++++-----
1 file changed, 82 insertions(+), 14 deletions(-)
diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c
index 96983906d2a2..e9967e5a2c25 100644
--- a/crypto/asymmetric_keys/public_key.c
+++ b/crypto/asymmetric_keys/public_key.c
+static int software_key_query(const struct kernel_pkey_params *params,
+ struct kernel_pkey_query *info)
+{
...
+ len = crypto_akcipher_maxsize(tfm);
+ info->key_size = len * 8;
+ info->max_data_size = len;
+ info->max_sig_size = len;
+ info->max_enc_size = len;
+ info->max_dec_size = len;
If len > UINT16_MAX, should UINT16_MAX be reported as the max size?
Similar question for len*8 and key_size.
--
Mat Martineau
Intel OTC
--
To unsubscribe from this list: send the line "unsubscribe linux-crypto" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
