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authorDaniel P. Berrange <berrange@redhat.com>2016-09-07 12:48:32 +0100
committerDaniel P. Berrange <berrange@redhat.com>2016-09-19 16:30:45 +0100
commit2ab66cd577d6d0ec3c44b14cc823e76ea5a4397c (patch)
tree83ba90f474b0dbb90706b0234b7ea442f1a46c0a
parentacd0dfd0c252a06ec6f2146fea01b66b7bc68cfc (diff)
crypto: increase default pbkdf2 time for luks to 2 seconds
cryptsetup recently increased the default pbkdf2 time to 2 seconds to partially mitigate improvements in hardware performance wrt brute-forcing the pbkdf algorithm. This updates QEMU defaults to match. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
-rw-r--r--crypto/block-luks.c2
-rw-r--r--qapi/crypto.json2
2 files changed, 2 insertions, 2 deletions
diff --git a/crypto/block-luks.c b/crypto/block-luks.c
index 3ab3250e3d..a848232034 100644
--- a/crypto/block-luks.c
+++ b/crypto/block-luks.c
@@ -921,7 +921,7 @@ qcrypto_block_luks_create(QCryptoBlock *block,
memcpy(&luks_opts, &options->u.luks, sizeof(luks_opts));
if (!luks_opts.has_iter_time) {
- luks_opts.iter_time = 1000;
+ luks_opts.iter_time = 2000;
}
if (!luks_opts.has_cipher_alg) {
luks_opts.cipher_alg = QCRYPTO_CIPHER_ALG_AES_256;
diff --git a/qapi/crypto.json b/qapi/crypto.json
index 2b6118f660..6933b13bd0 100644
--- a/qapi/crypto.json
+++ b/qapi/crypto.json
@@ -187,7 +187,7 @@
# Currently defaults to 'sha256'
# @iter-time: #optional number of milliseconds to spend in
# PBKDF passphrase processing. Currently defaults
-# to 1000. (since 2.8)
+# to 2000. (since 2.8)
# Since: 2.6
##
{ 'struct': 'QCryptoBlockCreateOptionsLUKS',