summaryrefslogtreecommitdiff
path: root/arch/s390/crypto/sha.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390/crypto/sha.h')
-rw-r--r--arch/s390/crypto/sha.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/s390/crypto/sha.h b/arch/s390/crypto/sha.h
new file mode 100644
index 000000000..f4e9dc716
--- /dev/null
+++ b/arch/s390/crypto/sha.h
@@ -0,0 +1,37 @@
+/*
+ * Cryptographic API.
+ *
+ * s390 generic implementation of the SHA Secure Hash Algorithms.
+ *
+ * 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.
+ *
+ */
+#ifndef _CRYPTO_ARCH_S390_SHA_H
+#define _CRYPTO_ARCH_S390_SHA_H
+
+#include <linux/crypto.h>
+#include <crypto/sha.h>
+
+/* must be big enough for the largest SHA variant */
+#define SHA_MAX_STATE_SIZE 16
+#define SHA_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
+
+struct s390_sha_ctx {
+ u64 count; /* message length in bytes */
+ u32 state[SHA_MAX_STATE_SIZE];
+ u8 buf[2 * SHA_MAX_BLOCK_SIZE];
+ int func; /* KIMD function to use */
+};
+
+struct shash_desc;
+
+int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len);
+int s390_sha_final(struct shash_desc *desc, u8 *out);
+
+#endif