X-Git-Url: http://www.project-moonshot.org/gitweb/?p=mech_eap.git;a=blobdiff_plain;f=libeap%2Fsrc%2Fcrypto%2Fsha384-internal.c;fp=libeap%2Fsrc%2Fcrypto%2Fsha384-internal.c;h=646f72979c2a6aaa80f25847575ef5851252426c;hp=0000000000000000000000000000000000000000;hb=f3746d009c6d7f50025af1f58a85e5fee9680be6;hpb=244f18d04aaf29e68495b5ffeb40ef5cca50942f

diff --git a/libeap/src/crypto/sha384-internal.c b/libeap/src/crypto/sha384-internal.c
new file mode 100644
index 0000000..646f729
--- /dev/null
+++ b/libeap/src/crypto/sha384-internal.c
@@ -0,0 +1,92 @@
+/*
+ * SHA-384 hash implementation and interface functions
+ * Copyright (c) 2015, Pali Rohár <pali.rohar@gmail.com>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "sha384_i.h"
+#include "crypto.h"
+
+
+/**
+ * sha384_vector - SHA384 hash for data vector
+ * @num_elem: Number of elements in the data vector
+ * @addr: Pointers to the data areas
+ * @len: Lengths of the data blocks
+ * @mac: Buffer for the hash
+ * Returns: 0 on success, -1 of failure
+ */
+int sha384_vector(size_t num_elem, const u8 *addr[], const size_t *len,
+		  u8 *mac)
+{
+	struct sha384_state ctx;
+	size_t i;
+
+	sha384_init(&ctx);
+	for (i = 0; i < num_elem; i++)
+		if (sha384_process(&ctx, addr[i], len[i]))
+			return -1;
+	if (sha384_done(&ctx, mac))
+		return -1;
+	return 0;
+}
+
+
+/* ===== start - public domain SHA384 implementation ===== */
+
+/* This is based on SHA384 implementation in LibTomCrypt that was released into
+ * public domain by Tom St Denis. */
+
+#define CONST64(n) n ## ULL
+
+/**
+   Initialize the hash state
+   @param md   The hash state you wish to initialize
+   @return CRYPT_OK if successful
+*/
+void sha384_init(struct sha384_state *md)
+{
+	md->curlen = 0;
+	md->length = 0;
+	md->state[0] = CONST64(0xcbbb9d5dc1059ed8);
+	md->state[1] = CONST64(0x629a292a367cd507);
+	md->state[2] = CONST64(0x9159015a3070dd17);
+	md->state[3] = CONST64(0x152fecd8f70e5939);
+	md->state[4] = CONST64(0x67332667ffc00b31);
+	md->state[5] = CONST64(0x8eb44a8768581511);
+	md->state[6] = CONST64(0xdb0c2e0d64f98fa7);
+	md->state[7] = CONST64(0x47b5481dbefa4fa4);
+}
+
+int sha384_process(struct sha384_state *md, const unsigned char *in,
+		   unsigned long inlen)
+{
+	return sha512_process(md, in, inlen);
+}
+
+/**
+   Terminate the hash to get the digest
+   @param md  The hash state
+   @param out [out] The destination of the hash (48 bytes)
+   @return CRYPT_OK if successful
+*/
+int sha384_done(struct sha384_state *md, unsigned char *out)
+{
+	unsigned char buf[64];
+
+	if (md->curlen >= sizeof(md->buf))
+		return -1;
+
+	if (sha512_done(md, buf) != 0)
+		return -1;
+
+	os_memcpy(out, buf, 48);
+	return 0;
+}
+
+/* ===== end - public domain SHA384 implementation ===== */