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-rw-r--r--arch/arm64/crypto/sha512-glue.c92
1 files changed, 92 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..2acff1c7d
--- /dev/null
+++ b/arch/arm64/crypto/sha512-glue.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Linux/arm64 port of the OpenSSL SHA512 implementation for AArch64
+ *
+ * Copyright (c) 2016 Linaro Ltd. <ard.biesheuvel@linaro.org>
+ */
+
+#include <crypto/internal/hash.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <crypto/sha2.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(u64 *digest, const void *data,
+ unsigned int num_blks);
+EXPORT_SYMBOL(sha512_block_data_order);
+
+static void __sha512_block_data_order(struct sha512_state *sst, u8 const *src,
+ int blocks)
+{
+ sha512_block_data_order(sst->state, src, blocks);
+}
+
+static int sha512_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return sha512_base_do_update(desc, data, len,
+ __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_data_order);
+ sha512_base_do_finalize(desc, __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);