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authorDominik Riebeling <Dominik.Riebeling@gmail.com>2020-06-08 20:25:36 +0200
committerDominik Riebeling <Dominik.Riebeling@gmail.com>2020-08-07 22:18:41 +0200
commitb0f22620a2dbfb991b10a8e1e8b0c8db5e3ee117 (patch)
tree2695997733229be38ec71c36753b19ba2e98aa61 /rbutil/rbutilqt/quazip/crypt.h
parentb3a0187416e48d80275af6be0178cef155aa03dc (diff)
downloadrockbox-b0f22620a2dbfb991b10a8e1e8b0c8db5e3ee117.tar.gz
rockbox-b0f22620a2dbfb991b10a8e1e8b0c8db5e3ee117.zip
rbutil: Update quazip to release 0.9.1.
Update to latest quazip release. Change-Id: I03189ceeadbe3110a9420153d84bd5d33d5b663f
Diffstat (limited to 'rbutil/rbutilqt/quazip/crypt.h')
-rw-r--r--rbutil/rbutilqt/quazip/crypt.h135
1 files changed, 0 insertions, 135 deletions
diff --git a/rbutil/rbutilqt/quazip/crypt.h b/rbutil/rbutilqt/quazip/crypt.h
deleted file mode 100644
index ddee28e7dd..0000000000
--- a/rbutil/rbutilqt/quazip/crypt.h
+++ /dev/null
@@ -1,135 +0,0 @@
-/* crypt.h -- base code for crypt/uncrypt ZIPfile
-
-
- Version 1.01e, February 12th, 2005
-
- Copyright (C) 1998-2005 Gilles Vollant
-
- This code is a modified version of crypting code in Infozip distribution
-
- The encryption/decryption parts of this source code (as opposed to the
- non-echoing password parts) were originally written in Europe. The
- whole source package can be freely distributed, including from the USA.
- (Prior to January 2000, re-export from the US was a violation of US law.)
-
- This encryption code is a direct transcription of the algorithm from
- Roger Schlafly, described by Phil Katz in the file appnote.txt. This
- file (appnote.txt) is distributed with the PKZIP program (even in the
- version without encryption capabilities).
-
- If you don't need crypting in your application, just define symbols
- NOCRYPT and NOUNCRYPT.
-
- This code support the "Traditional PKWARE Encryption".
-
- The new AES encryption added on Zip format by Winzip (see the page
- http://www.winzip.com/aes_info.htm ) and PKWare PKZip 5.x Strong
- Encryption is not supported.
-*/
-
-#include "quazip_global.h"
-
-#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))
-
-/***********************************************************************
- * Return the next byte in the pseudo-random sequence
- */
-static int decrypt_byte(unsigned long* pkeys, const z_crc_t FAR * pcrc_32_tab UNUSED)
-{
- //(void) pcrc_32_tab; /* avoid "unused parameter" warning */
- unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an
- * unpredictable manner on 16-bit systems; not a problem
- * with any known compiler so far, though */
-
- temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2;
- return (int)(((temp * (temp ^ 1)) >> 8) & 0xff);
-}
-
-/***********************************************************************
- * Update the encryption keys with the next byte of plain text
- */
-static int update_keys(unsigned long* pkeys,const z_crc_t FAR * pcrc_32_tab,int c)
-{
- (*(pkeys+0)) = CRC32((*(pkeys+0)), c);
- (*(pkeys+1)) += (*(pkeys+0)) & 0xff;
- (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1;
- {
- register int keyshift = (int)((*(pkeys+1)) >> 24);
- (*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift);
- }
- return c;
-}
-
-
-/***********************************************************************
- * Initialize the encryption keys and the random header according to
- * the given password.
- */
-static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t FAR * pcrc_32_tab)
-{
- *(pkeys+0) = 305419896L;
- *(pkeys+1) = 591751049L;
- *(pkeys+2) = 878082192L;
- while (*passwd != '\0') {
- update_keys(pkeys,pcrc_32_tab,(int)*passwd);
- passwd++;
- }
-}
-
-#define zdecode(pkeys,pcrc_32_tab,c) \
- (update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab)))
-
-#define zencode(pkeys,pcrc_32_tab,c,t) \
- (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), t^(c))
-
-#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED
-
-#define RAND_HEAD_LEN 12
- /* "last resort" source for second part of crypt seed pattern */
-# ifndef ZCR_SEED2
-# define ZCR_SEED2 3141592654UL /* use PI as default pattern */
-# endif
-
-static int crypthead(passwd, buf, bufSize, pkeys, pcrc_32_tab, crcForCrypting)
- const char *passwd; /* password string */
- unsigned char *buf; /* where to write header */
- int bufSize;
- unsigned long* pkeys;
- const z_crc_t FAR * pcrc_32_tab;
- unsigned long crcForCrypting;
-{
- int n; /* index in random header */
- int t; /* temporary */
- int c; /* random byte */
- unsigned char header[RAND_HEAD_LEN-2]; /* random header */
- static unsigned calls = 0; /* ensure different random header each time */
-
- if (bufSize<RAND_HEAD_LEN)
- return 0;
-
- /* First generate RAND_HEAD_LEN-2 random bytes. We encrypt the
- * output of rand() to get less predictability, since rand() is
- * often poorly implemented.
- */
- if (++calls == 1)
- {
- srand((unsigned)(time(NULL) ^ ZCR_SEED2));
- }
- init_keys(passwd, pkeys, pcrc_32_tab);
- for (n = 0; n < RAND_HEAD_LEN-2; n++)
- {
- c = (rand() >> 7) & 0xff;
- header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t);
- }
- /* Encrypt random header (last two bytes is high word of crc) */
- init_keys(passwd, pkeys, pcrc_32_tab);
- for (n = 0; n < RAND_HEAD_LEN-2; n++)
- {
- buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t);
- }
- buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t);
- buf[n++] = zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t);
- return n;
-}
-
-#endif