1 files changed, 71 insertions, 0 deletions

diff --git a/arch/s390/crypto/sha512_s390.c b/arch/s390/crypto/sha512_s390.c
new file mode 100644
index 000000000000..4d651bbce0f4
--- /dev/null
+++ b/arch/s390/crypto/sha512_s390.c
@@ -0,0 +1,71 @@
+/*
+ * Cryptographic API.
+ *
+ * s390 implementation of the SHA512 Secure Hash Algorithm.
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Jan Glauber (jang@de.ibm.com)
+ *
+ * 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 <linux/init.h>
+#include <linux/module.h>
+#include <linux/crypto.h>
+
+#include "sha.h"
+#include "crypt_s390.h"
+
+static void sha512_init(struct crypto_tfm *tfm)
+{
+        struct s390_sha_ctx *ctx = crypto_tfm_ctx(tfm);
+
+        *(__u64 *)&ctx->state[0] = 0x6a09e667f3bcc908ULL;
+        *(__u64 *)&ctx->state[2] = 0xbb67ae8584caa73bULL;
+        *(__u64 *)&ctx->state[4] = 0x3c6ef372fe94f82bULL;
+        *(__u64 *)&ctx->state[6] = 0xa54ff53a5f1d36f1ULL;
+        *(__u64 *)&ctx->state[8] = 0x510e527fade682d1ULL;
+        *(__u64 *)&ctx->state[10] = 0x9b05688c2b3e6c1fULL;
+        *(__u64 *)&ctx->state[12] = 0x1f83d9abfb41bd6bULL;
+        *(__u64 *)&ctx->state[14] = 0x5be0cd19137e2179ULL;
+        ctx->count = 0;
+        ctx->func = KIMD_SHA_512;
+}
+
+static struct crypto_alg alg = {
+        .cra_name       =       "sha512",
+        .cra_driver_name =      "sha512-s390",
+        .cra_priority   =       CRYPT_S390_PRIORITY,
+        .cra_flags      =       CRYPTO_ALG_TYPE_DIGEST,
+        .cra_blocksize  =       SHA512_BLOCK_SIZE,
+        .cra_ctxsize    =       sizeof(struct s390_sha_ctx),
+        .cra_module     =       THIS_MODULE,
+        .cra_list       =       LIST_HEAD_INIT(alg.cra_list),
+        .cra_u          =       { .digest = {
+        .dia_digestsize =       SHA512_DIGEST_SIZE,
+        .dia_init       =       sha512_init,
+        .dia_update     =       s390_sha_update,
+        .dia_final      =       s390_sha_final } }
+};
+
+static int __init init(void)
+{
+        if (!crypt_s390_func_available(KIMD_SHA_512))
+                return -EOPNOTSUPP;
+        return crypto_register_alg(&alg);
+}
+
+static void __exit fini(void)
+{
+        crypto_unregister_alg(&alg);
+}
+
+module_init(init);
+module_exit(fini);
+
+MODULE_ALIAS("sha512");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SHA512 Secure Hash Algorithm");