crypto: add support for the cast5-128 cipher algorithm

A new cipher algorithm 'cast-5-128' is defined for the
Cast-5 algorithm with 128 bit key size. Smaller key sizes
are supported by Cast-5, but nothing in QEMU should use
them, so only 128 bit keys are permitted.

The nettle and gcrypt cipher backends are updated to
support the new cipher and a test vector added to the
cipher test suite. The new algorithm is enabled in the
LUKS block encryption driver.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/tests/test-crypto-cipher.c b/tests/test-crypto-cipher.c
index 7a073e9673..a994ca925c 100644
--- a/tests/test-crypto-cipher.c
+++ b/tests/test-crypto-cipher.c
@@ -165,6 +165,15 @@ static QCryptoCipherTestData test_data[] = {
             "ffd29f1bb5596ad94ea2d8e6196b7f09"
             "30d8ed0bf2773af36dd82a6280c20926",
     },
+    {
+        /* RFC 2144, Appendix B.1 */
+        .path = "/crypto/cipher/cast5-128",
+        .alg = QCRYPTO_CIPHER_ALG_CAST5_128,
+        .mode = QCRYPTO_CIPHER_MODE_ECB,
+        .key = "0123456712345678234567893456789A",
+        .plaintext = "0123456789abcdef",
+        .ciphertext = "238b4fe5847e44b2",
+    },
 };