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authorJeff Garzik <jeff@garzik.org>2016-06-17 10:30:35 +0530
committerHerbert Xu <herbert@gondor.apana.org.au>2016-06-20 19:25:01 +0800
commit53964b9ee63b7075931b8df85307c449da564b50 (patch)
tree5650ca6328973c090a3bf2ea8fdcf8ae58837061 /include/crypto
parent6999d504d4be3ddacd7a01ae961886a66b6a53d9 (diff)
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crypto: sha3 - Add SHA-3 hash algorithm
This patch adds the implementation of SHA3 algorithm in software and it's based on original implementation pushed in patch https://lwn.net/Articles/518415/ with additional changes to match the padding rules specified in SHA-3 specification. Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Raveendra Padasalagi <raveendra.padasalagi@broadcom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
-rw-r--r--include/crypto/sha3.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/crypto/sha3.h b/include/crypto/sha3.h
new file mode 100644
index 000000000000..f4c9f68f5ffe
--- /dev/null
+++ b/include/crypto/sha3.h
@@ -0,0 +1,29 @@
+/*
+ * Common values for SHA-3 algorithms
+ */
+#ifndef __CRYPTO_SHA3_H__
+#define __CRYPTO_SHA3_H__
+
+#define SHA3_224_DIGEST_SIZE (224 / 8)
+#define SHA3_224_BLOCK_SIZE (200 - 2 * SHA3_224_DIGEST_SIZE)
+
+#define SHA3_256_DIGEST_SIZE (256 / 8)
+#define SHA3_256_BLOCK_SIZE (200 - 2 * SHA3_256_DIGEST_SIZE)
+
+#define SHA3_384_DIGEST_SIZE (384 / 8)
+#define SHA3_384_BLOCK_SIZE (200 - 2 * SHA3_384_DIGEST_SIZE)
+
+#define SHA3_512_DIGEST_SIZE (512 / 8)
+#define SHA3_512_BLOCK_SIZE (200 - 2 * SHA3_512_DIGEST_SIZE)
+
+struct sha3_state {
+ u64 st[25];
+ unsigned int md_len;
+ unsigned int rsiz;
+ unsigned int rsizw;
+
+ unsigned int partial;
+ u8 buf[SHA3_224_BLOCK_SIZE];
+};
+
+#endif