1 files changed, 140 insertions, 0 deletions
diff --git a/src/others/irrlicht-1.8.1/source/Irrlicht/aesGladman/fileenc.cpp b/src/others/irrlicht-1.8.1/source/Irrlicht/aesGladman/fileenc.cpp
new file mode 100644
index 0000000..4e76c77
--- /dev/null
+++ b/src/others/irrlicht-1.8.1/source/Irrlicht/aesGladman/fileenc.cpp
@@ -0,0 +1,140 @@
+/*
+ ---------------------------------------------------------------------------
+ Copyright (c) 2002, Dr Brian Gladman <                 >, Worcester, UK.
+ All rights reserved.
+ LICENSE TERMS
+ The free distribution and use of this software in both source and binary
+ form is allowed (with or without changes) provided that:
+   1. distributions of this source code include the above copyright
+      notice, this list of conditions and the following disclaimer;
+   2. distributions in binary form include the above copyright
+      notice, this list of conditions and the following disclaimer
+      in the documentation and/or other associated materials;
+   3. the copyright holder's name is not used to endorse products
+      built using this software without specific written permission.
+ ALTERNATIVELY, provided that this notice is retained in full, this product
+ may be distributed under the terms of the GNU General Public License (GPL),
+ in which case the provisions of the GPL apply INSTEAD OF those given above.
+ DISCLAIMER
+ This software is provided 'as is' with no explicit or implied warranties
+ in respect of its properties, including, but not limited to, correctness
+ and/or fitness for purpose.
+ -------------------------------------------------------------------------
+ Issue Date: 26/08/2003
+ This file implements password based file encryption and authentication 
+ using AES in CTR mode, HMAC-SHA1 authentication and RFC2898 password 
+ based key derivation.
+*/
+#include <memory.h>
+#include "fileenc.h"
+/* subroutine for data encryption/decryption    */
+/* this could be speeded up a lot by aligning   */
+/* buffers and using 32 bit operations          */
+static void encr_data(unsigned char data[], unsigned long d_len, fcrypt_ctx cx[1])
+{
+    unsigned long i = 0, pos = cx->encr_pos;
+    while(i < d_len)
+    {
+        if(pos == BLOCK_SIZE)
+        {   unsigned int j = 0;
+            /* increment encryption nonce   */
+            while(j < 8 && !++cx->nonce[j])
+                ++j;
+            /* encrypt the nonce to form next xor buffer    */
+            aes_encrypt(cx->nonce, cx->encr_bfr, cx->encr_ctx);
+            pos = 0;
+        }
+        data[i++] ^= cx->encr_bfr[pos++];
+    }
+    cx->encr_pos = pos;
+}
+int fcrypt_init(
+    int mode,                               /* the mode to be used (input)          */
+    const unsigned char pwd[],              /* the user specified password (input)  */
+    unsigned int pwd_len,                   /* the length of the password (input)   */
+    const unsigned char salt[],             /* the salt (input)                     */
+#ifdef PASSWORD_VERIFIER
+    unsigned char pwd_ver[PWD_VER_LENGTH],  /* 2 byte password verifier (output)    */
+#endif
+    fcrypt_ctx      cx[1])                  /* the file encryption context (output) */
+{
+    unsigned char kbuf[2 * MAX_KEY_LENGTH + PWD_VER_LENGTH];
+    if(pwd_len > MAX_PWD_LENGTH)
+        return PASSWORD_TOO_LONG;
+    if(mode < 1 || mode > 3)
+        return BAD_MODE;
+    cx->mode = mode;
+    cx->pwd_len = pwd_len;
+    /* initialise the encryption nonce and buffer pos   */
+    cx->encr_pos = BLOCK_SIZE;
+    /* if we need a random component in the encryption  */
+    /* nonce, this is where it would have to be set     */
+    memset(cx->nonce, 0, BLOCK_SIZE * sizeof(unsigned char));
+    /* initialise for authentication                            */
+    hmac_sha_begin(cx->auth_ctx);
+    /* derive the encryption and authetication keys and the password verifier   */
+    derive_key(pwd, pwd_len, salt, SALT_LENGTH(mode), KEYING_ITERATIONS,
+                        kbuf, 2 * KEY_LENGTH(mode) + PWD_VER_LENGTH);
+    /* set the encryption key                                                   */
+    aes_encrypt_key(kbuf, KEY_LENGTH(mode), cx->encr_ctx);
+    /* set the authentication key                                               */
+    hmac_sha_key(kbuf + KEY_LENGTH(mode), KEY_LENGTH(mode), cx->auth_ctx);
+#ifdef PASSWORD_VERIFIER
+    memcpy(pwd_ver, kbuf + 2 * KEY_LENGTH(mode), PWD_VER_LENGTH);
+#endif
+    /* clear the buffer holding the derived key values  */
+    memset(kbuf, 0, 2 * KEY_LENGTH(mode) + PWD_VER_LENGTH);
+    return GOOD_RETURN;
+}
+/* perform 'in place' encryption and authentication */
+void fcrypt_encrypt(unsigned char data[], unsigned int data_len, fcrypt_ctx cx[1])
+{
+    encr_data(data, data_len, cx);
+    hmac_sha_data(data, data_len, cx->auth_ctx);
+}
+/* perform 'in place' authentication and decryption */
+void fcrypt_decrypt(unsigned char data[], unsigned int data_len, fcrypt_ctx cx[1])
+{
+    hmac_sha_data(data, data_len, cx->auth_ctx);
+    encr_data(data, data_len, cx);
+}
+/* close encryption/decryption and return the MAC value */
+int fcrypt_end(unsigned char mac[], fcrypt_ctx cx[1])
+{
+    unsigned int res = cx->mode;
+    hmac_sha_end(mac, MAC_LENGTH(cx->mode), cx->auth_ctx);
+    memset(cx, 0, sizeof(fcrypt_ctx));  /* clear the encryption context */
+    return MAC_LENGTH(res);             /* return MAC length in bytes   */
+}

diff --git a/src/others/irrlicht-1.8.1/source/Irrlicht/aesGladman/fileenc.cpp b/src/others/irrlicht-1.8.1/source/Irrlicht/aesGladman/fileenc.cpp new file mode 100644 index 0000000..4e76c77 --- /dev/null +++ b/src/others/irrlicht-1.8.1/source/Irrlicht/aesGladman/fileenc.cpp
@@ -0,0 +1,140 @@
	1	/*
	2	---------------------------------------------------------------------------
	3	Copyright (c) 2002, Dr Brian Gladman < >, Worcester, UK.
	4	All rights reserved.
	5
	6	LICENSE TERMS
	7
	8	The free distribution and use of this software in both source and binary
	9	form is allowed (with or without changes) provided that:
	10
	11	1. distributions of this source code include the above copyright
	12	notice, this list of conditions and the following disclaimer;
	13
	14	2. distributions in binary form include the above copyright
	15	notice, this list of conditions and the following disclaimer
	16	in the documentation and/or other associated materials;
	17
	18	3. the copyright holder's name is not used to endorse products
	19	built using this software without specific written permission.
	20
	21	ALTERNATIVELY, provided that this notice is retained in full, this product
	22	may be distributed under the terms of the GNU General Public License (GPL),
	23	in which case the provisions of the GPL apply INSTEAD OF those given above.
	24
	25	DISCLAIMER
	26
	27	This software is provided 'as is' with no explicit or implied warranties
	28	in respect of its properties, including, but not limited to, correctness
	29	and/or fitness for purpose.
	30	-------------------------------------------------------------------------
	31	Issue Date: 26/08/2003
	32
	33	This file implements password based file encryption and authentication
	34	using AES in CTR mode, HMAC-SHA1 authentication and RFC2898 password
	35	based key derivation.
	36
	37	*/
	38
	39	#include <memory.h>
	40
	41	#include "fileenc.h"
	42
	43	/* subroutine for data encryption/decryption */
	44	/* this could be speeded up a lot by aligning */
	45	/* buffers and using 32 bit operations */
	46
	47	static void encr_data(unsigned char data[], unsigned long d_len, fcrypt_ctx cx[1])
	48	{
	49	unsigned long i = 0, pos = cx->encr_pos;
	50
	51	while(i < d_len)
	52	{
	53	if(pos == BLOCK_SIZE)
	54	{ unsigned int j = 0;
	55	/* increment encryption nonce */
	56	while(j < 8 && !++cx->nonce[j])
	57	++j;
	58	/* encrypt the nonce to form next xor buffer */
	59	aes_encrypt(cx->nonce, cx->encr_bfr, cx->encr_ctx);
	60	pos = 0;
	61	}
	62
	63	data[i++] ^= cx->encr_bfr[pos++];
	64	}
	65
	66	cx->encr_pos = pos;
	67	}
	68
	69	int fcrypt_init(
	70	int mode, /* the mode to be used (input) */
	71	const unsigned char pwd[], /* the user specified password (input) */
	72	unsigned int pwd_len, /* the length of the password (input) */
	73	const unsigned char salt[], /* the salt (input) */
	74	#ifdef PASSWORD_VERIFIER
	75	unsigned char pwd_ver[PWD_VER_LENGTH], /* 2 byte password verifier (output) */
	76	#endif
	77	fcrypt_ctx cx[1]) /* the file encryption context (output) */
	78	{
	79	unsigned char kbuf[2 * MAX_KEY_LENGTH + PWD_VER_LENGTH];
	80
	81	if(pwd_len > MAX_PWD_LENGTH)
	82	return PASSWORD_TOO_LONG;
	83
	84	if(mode < 1 \|\| mode > 3)
	85	return BAD_MODE;
	86
	87	cx->mode = mode;
	88	cx->pwd_len = pwd_len;
	89	/* initialise the encryption nonce and buffer pos */
	90	cx->encr_pos = BLOCK_SIZE;
	91
	92	/* if we need a random component in the encryption */
	93	/* nonce, this is where it would have to be set */
	94	memset(cx->nonce, 0, BLOCK_SIZE * sizeof(unsigned char));
	95	/* initialise for authentication */
	96	hmac_sha_begin(cx->auth_ctx);
	97
	98	/* derive the encryption and authetication keys and the password verifier */
	99	derive_key(pwd, pwd_len, salt, SALT_LENGTH(mode), KEYING_ITERATIONS,
	100	kbuf, 2 * KEY_LENGTH(mode) + PWD_VER_LENGTH);
	101	/* set the encryption key */
	102	aes_encrypt_key(kbuf, KEY_LENGTH(mode), cx->encr_ctx);
	103	/* set the authentication key */
	104	hmac_sha_key(kbuf + KEY_LENGTH(mode), KEY_LENGTH(mode), cx->auth_ctx);
	105	#ifdef PASSWORD_VERIFIER
	106	memcpy(pwd_ver, kbuf + 2 * KEY_LENGTH(mode), PWD_VER_LENGTH);
	107	#endif
	108	/* clear the buffer holding the derived key values */
	109	memset(kbuf, 0, 2 * KEY_LENGTH(mode) + PWD_VER_LENGTH);
	110
	111	return GOOD_RETURN;
	112	}
	113
	114	/* perform 'in place' encryption and authentication */
	115
	116	void fcrypt_encrypt(unsigned char data[], unsigned int data_len, fcrypt_ctx cx[1])
	117	{
	118	encr_data(data, data_len, cx);
	119	hmac_sha_data(data, data_len, cx->auth_ctx);
	120	}
	121
	122	/* perform 'in place' authentication and decryption */
	123
	124	void fcrypt_decrypt(unsigned char data[], unsigned int data_len, fcrypt_ctx cx[1])
	125	{
	126	hmac_sha_data(data, data_len, cx->auth_ctx);
	127	encr_data(data, data_len, cx);
	128	}
	129
	130	/* close encryption/decryption and return the MAC value */
	131
	132	int fcrypt_end(unsigned char mac[], fcrypt_ctx cx[1])
	133	{
	134	unsigned int res = cx->mode;
	135
	136	hmac_sha_end(mac, MAC_LENGTH(cx->mode), cx->auth_ctx);
	137	memset(cx, 0, sizeof(fcrypt_ctx)); /* clear the encryption context */
	138	return MAC_LENGTH(res); /* return MAC length in bytes */
	139	}
	140