1 files changed, 93 insertions, 0 deletions
diff --git a/arch/arm64/crypto/sha512-glue.c b/arch/arm64/crypto/sha512-glue.c
new file mode 100644
index 000000000..325b23b43
--- /dev/null
+++ b/arch/arm64/crypto/sha512-glue.c
@@ -0,0 +1,93 @@
+/*
+ * Linux/arm64 port of the OpenSSL SHA512 implementation for AArch64
+ *
+ * Copyright (c) 2016 Linaro Ltd. <ard.biesheuvel@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+
+#include <crypto/internal/hash.h>
+#include <linux/cryptohash.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <crypto/sha.h>
+#include <crypto/sha512_base.h>
+#include <asm/neon.h>
+
+MODULE_DESCRIPTION("SHA-384/SHA-512 secure hash for arm64");
+MODULE_AUTHOR("Andy Polyakov <appro@openssl.org>");
+MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_CRYPTO("sha384");
+MODULE_ALIAS_CRYPTO("sha512");
+
+asmlinkage void sha512_block_data_order(u32 *digest, const void *data,
+					unsigned int num_blks);
+EXPORT_SYMBOL(sha512_block_data_order);
+
+static int sha512_update(struct shash_desc *desc, const u8 *data,
+			 unsigned int len)
+{
+	return sha512_base_do_update(desc, data, len,
+			(sha512_block_fn *)sha512_block_data_order);
+}
+
+static int sha512_finup(struct shash_desc *desc, const u8 *data,
+			unsigned int len, u8 *out)
+{
+	if (len)
+		sha512_base_do_update(desc, data, len,
+			(sha512_block_fn *)sha512_block_data_order);
+	sha512_base_do_finalize(desc,
+			(sha512_block_fn *)sha512_block_data_order);
+
+	return sha512_base_finish(desc, out);
+}
+
+static int sha512_final(struct shash_desc *desc, u8 *out)
+{
+	return sha512_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg algs[] = { {
+	.digestsize		= SHA512_DIGEST_SIZE,
+	.init			= sha512_base_init,
+	.update			= sha512_update,
+	.final			= sha512_final,
+	.finup			= sha512_finup,
+	.descsize		= sizeof(struct sha512_state),
+	.base.cra_name		= "sha512",
+	.base.cra_driver_name	= "sha512-arm64",
+	.base.cra_priority	= 150,
+	.base.cra_blocksize	= SHA512_BLOCK_SIZE,
+	.base.cra_module	= THIS_MODULE,
+}, {
+	.digestsize		= SHA384_DIGEST_SIZE,
+	.init			= sha384_base_init,
+	.update			= sha512_update,
+	.final			= sha512_final,
+	.finup			= sha512_finup,
+	.descsize		= sizeof(struct sha512_state),
+	.base.cra_name		= "sha384",
+	.base.cra_driver_name	= "sha384-arm64",
+	.base.cra_priority	= 150,
+	.base.cra_blocksize	= SHA384_BLOCK_SIZE,
+	.base.cra_module	= THIS_MODULE,
+} };
+
+static int __init sha512_mod_init(void)
+{
+	return crypto_register_shashes(algs, ARRAY_SIZE(algs));
+}
+
+static void __exit sha512_mod_fini(void)
+{
+	crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
+}
+
+module_init(sha512_mod_init);
+module_exit(sha512_mod_fini);