X-Git-Url: http://www.project-moonshot.org/gitweb/?a=blobdiff_plain;f=libeap%2Fsrc%2Fcrypto%2Faes-unwrap.c;fp=libeap%2Fsrc%2Fcrypto%2Faes-unwrap.c;h=0000000000000000000000000000000000000000;hb=refs%2Fheads%2Fupstream;hp=ec793d9dbf78b74a96579efcf73d83397bfcfdba;hpb=3fbcdec12a5a2a97a5c03a9e1456a029aa93b2c3;p=mech_eap.git

diff --git a/libeap/src/crypto/aes-unwrap.c b/libeap/src/crypto/aes-unwrap.c
deleted file mode 100644
index ec793d9..0000000
--- a/libeap/src/crypto/aes-unwrap.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * AES key unwrap (RFC3394)
- *
- * Copyright (c) 2003-2007, Jouni Malinen <j@w1.fi>
- *
- * This software may be distributed under the terms of the BSD license.
- * See README for more details.
- */
-
-#include "includes.h"
-
-#include "common.h"
-#include "aes.h"
-#include "aes_wrap.h"
-
-/**
- * aes_unwrap - Unwrap key with AES Key Wrap Algorithm (RFC3394)
- * @kek: Key encryption key (KEK)
- * @kek_len: Length of KEK in octets
- * @n: Length of the plaintext key in 64-bit units; e.g., 2 = 128-bit = 16
- * bytes
- * @cipher: Wrapped key to be unwrapped, (n + 1) * 64 bits
- * @plain: Plaintext key, n * 64 bits
- * Returns: 0 on success, -1 on failure (e.g., integrity verification failed)
- */
-int aes_unwrap(const u8 *kek, size_t kek_len, int n, const u8 *cipher,
-	       u8 *plain)
-{
-	u8 a[8], *r, b[AES_BLOCK_SIZE];
-	int i, j;
-	void *ctx;
-	unsigned int t;
-
-	/* 1) Initialize variables. */
-	os_memcpy(a, cipher, 8);
-	r = plain;
-	os_memcpy(r, cipher + 8, 8 * n);
-
-	ctx = aes_decrypt_init(kek, kek_len);
-	if (ctx == NULL)
-		return -1;
-
-	/* 2) Compute intermediate values.
-	 * For j = 5 to 0
-	 *     For i = n to 1
-	 *         B = AES-1(K, (A ^ t) | R[i]) where t = n*j+i
-	 *         A = MSB(64, B)
-	 *         R[i] = LSB(64, B)
-	 */
-	for (j = 5; j >= 0; j--) {
-		r = plain + (n - 1) * 8;
-		for (i = n; i >= 1; i--) {
-			os_memcpy(b, a, 8);
-			t = n * j + i;
-			b[7] ^= t;
-			b[6] ^= t >> 8;
-			b[5] ^= t >> 16;
-			b[4] ^= t >> 24;
-
-			os_memcpy(b + 8, r, 8);
-			aes_decrypt(ctx, b, b);
-			os_memcpy(a, b, 8);
-			os_memcpy(r, b + 8, 8);
-			r -= 8;
-		}
-	}
-	aes_decrypt_deinit(ctx);
-
-	/* 3) Output results.
-	 *
-	 * These are already in @plain due to the location of temporary
-	 * variables. Just verify that the IV matches with the expected value.
-	 */
-	for (i = 0; i < 8; i++) {
-		if (a[i] != 0xa6)
-			return -1;
-	}
-
-	return 0;
-}