crypto: add support for PBKDF2 algorithm
The LUKS data format includes use of PBKDF2 (Password-Based
Key Derivation Function). The Nettle library can provide
an implementation of this, but we don't want code directly
depending on a specific crypto library backend. Introduce
a new include/crypto/pbkdf.h header which defines a QEMU
API for invoking PBKDK2. The initial implementations are
backed by nettle & gcrypt, which are commonly available
with distros shipping GNUTLS.
The test suite data is taken from the cryptsetup codebase
under the LGPLv2.1+ license. This merely aims to verify
that whatever backend we provide for this function in QEMU
will comply with the spec.
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
diff --git a/tests/Makefile b/tests/Makefile
index cd4bbd4..6e3b344 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -92,6 +92,7 @@
check-unit-y += tests/test-io-channel-command$(EXESUF)
check-unit-y += tests/test-io-channel-buffer$(EXESUF)
check-unit-y += tests/test-base64$(EXESUF)
+check-unit-$(if $(CONFIG_NETTLE),y,$(CONFIG_GCRYPT_KDF)) += tests/test-crypto-pbkdf$(EXESUF)
check-block-$(CONFIG_POSIX) += tests/qemu-iotests-quick.sh
@@ -496,6 +497,7 @@
tests/io-channel-helpers.o $(test-io-obj-y)
tests/test-io-channel-buffer$(EXESUF): tests/test-io-channel-buffer.o \
tests/io-channel-helpers.o $(test-io-obj-y)
+tests/test-crypto-pbkdf$(EXESUF): tests/test-crypto-pbkdf.o $(test-crypto-obj-y)
libqos-obj-y = tests/libqos/pci.o tests/libqos/fw_cfg.o tests/libqos/malloc.o
libqos-obj-y += tests/libqos/i2c.o tests/libqos/libqos.o
