1 files changed, 63 insertions, 0 deletions
diff --git a/src/lib/crypto/nss/hash_provider/hash_md4.c b/src/lib/crypto/nss/hash_provider/hash_md4.c
new file mode 100644
index 0000000..b6a1022
--- /dev/null
+++ b/src/lib/crypto/nss/hash_provider/hash_md4.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2010 Red Hat, Inc.
+ *
+ * All rights reserved.
+ *
+ * Export of this software from the United States of America may require
+ * a specific license from the United States Government.  It is the
+ * responsibility of any person or organization contemplating export to
+ * obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of FundsXpress. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.  FundsXpress makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include "k5-int.h"
+#include "hash_provider.h"
+#include "rsa-md4.h"
+#include "aead.h"
+
+static krb5_error_code
+k5_md4_hash(const krb5_crypto_iov *data, size_t num_data, krb5_data *output)
+{
+   krb5_MD4_CTX ctx;
+   unsigned long i;
+
+   if (output->length != RSA_MD4_CKSUM_LENGTH) {
+	return KRB5_CRYPTO_INTERNAL;
+   }
+
+   krb5int_MD4Init(&ctx);
+   for (i=0; i < num_data; i++) {
+	const krb5_crypto_iov *iov = &data[i];
+
+	if (SIGN_IOV(iov)) {
+	    krb5int_MD4Update(&ctx, (unsigned char *)iov->data.data,
+				iov->data.length);
+	}
+    }
+    krb5int_MD4Final(&ctx);
+
+    memcpy(output->data, ctx.digest, RSA_MD4_CKSUM_LENGTH);
+
+    return 0;
+}
+
+const struct krb5_hash_provider krb5int_hash_md4 = {
+    "MD4",
+    RSA_MD4_CKSUM_LENGTH,
+    64,
+    k5_md4_hash
+};