Diffstat (limited to 'pwmanager/pwmanager/libgcryptif.h') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | pwmanager/pwmanager/libgcryptif.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/pwmanager/pwmanager/libgcryptif.h b/pwmanager/pwmanager/libgcryptif.h index ce76675..dffd55b 100644 --- a/pwmanager/pwmanager/libgcryptif.h +++ b/pwmanager/pwmanager/libgcryptif.h @@ -1,146 +1,146 @@ /*************************************************************************** * * * copyright (C) 2004 by Michael Buesch * * email: mbuesch@freenet.de * * * * hashPassphrase() is derived from GnuPG and is * * Copyright (C) 1998, 1999, 2000, 2001, 2003 * * Free Software Foundation, Inc. * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License version 2 * * as published by the Free Software Foundation. * * * ***************************************************************************/ /*************************************************************************** * copyright (C) 2004 by Ulf Schenk - * This file is originaly based on version 2.0 of pwmanager + * This file is originaly based on version 1.1 of pwmanager * and was modified to run on embedded devices that run microkde * * $Id$ **************************************************************************/ #ifndef __LIBGCRYPTIF_H #define __LIBGCRYPTIF_H #include "pwmexception.h" //#undef CONFIG_PWMANAGER_GCRY // for debugging only. #ifdef CONFIG_PWMANAGER_GCRY #include <stddef.h> #include <sys/types.h> #include <stdint.h> #define STRING2KEY_SALTLEN 8 /** interface class for the libgcrypt cipher and hash algorithms * NOTE: Always allocate 1024 extra bytes for the inBuf (for padding) */ class LibGCryptIf { protected: struct STRING2KEY { int mode; int hash_algo; uint8_t salt[STRING2KEY_SALTLEN]; uint32_t count; }; struct DEK { size_t keylen; uint8_t key[32]; // this is the largest used keylen (256 bit) }; public: LibGCryptIf() { } /** is libgcrypt available? */ static bool available() { return true; } /** encrypt data. _algo is the PWM_CRYPT_* ID * of the algorithm. */ PwMerror encrypt(unsigned char **outBuf, size_t *outBufLen, unsigned char *inBuf, size_t inBufLen, const unsigned char *key, size_t keylen, char _algo); /** decrypt data. _algo is the PWM_CRYPT_* ID * of the algorithm. */ PwMerror decrypt(unsigned char **outBuf, size_t *outBufLen, const unsigned char *inBuf, size_t inBufLen, const unsigned char *key, size_t keylen, char _algo); /** hash data. _algo is the PWM_HASH_* ID of the hash */ PwMerror hash(unsigned char **outBuf, size_t *outBufLen, const unsigned char *inBuf, size_t inBufLen, char _algo); /** returns the length of the hash. _algo is the PWM_HASH_* * id of the hash. returns 0 on error. */ unsigned int hashLength(char _algo); protected: /** returns the total buffer length */ size_t getBufLen(size_t inBufLen, size_t boundary) { return ((boundary - (inBufLen % boundary)) + inBufLen); } /** pad the data up to the given boundary. * "buf" has to be big enough! */ void padData(unsigned char *buf, size_t bufLen, size_t boundary); /** unpad the data */ void unpadData(const unsigned char *buf, size_t *bufLen); /** maps the PWM_CRYPT_* ID of an algorithm * to the libgcrypt GCRY_CIPHER_* ID */ int mapCipherId(char algo); /** maps the PWM_HASH_* ID of an algorithm * to the libgcrypt GCRY_MD_* ID */ int mapHashId(char algo); /** hash a passphrase to a cipher key */ bool hashPassphrase(const unsigned char *pw, size_t pwlen, unsigned char *salt, unsigned char *key, size_t keylen, bool create); /** hash a passphrase to a cipher key */ bool doHashPassphrase(DEK *dek, const unsigned char *pw, size_t pwlen, STRING2KEY *s2k, bool create); }; #else // CONFIG_PWMANAGER_GCRY /** libgcrypt is not installed. This is a NOP wrapper. */ class LibGCryptIf { public: LibGCryptIf() { } static bool available() { return false; } PwMerror encrypt(unsigned char **, size_t *, unsigned char *, size_t, const unsigned char *, size_t, char) |