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Diffstat (limited to 'moon-abe/cpabe-0.11/dec.c')
| -rw-r--r-- | moon-abe/cpabe-0.11/dec.c | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/moon-abe/cpabe-0.11/dec.c b/moon-abe/cpabe-0.11/dec.c deleted file mode 100644 index 218be2aa..00000000 --- a/moon-abe/cpabe-0.11/dec.c +++ /dev/null @@ -1,173 +0,0 @@ -#include <assert.h> -#include <string.h> -#include <unistd.h> -#include <glib.h> -#include <pbc.h> -#include <pbc_random.h> - -#include "bswabe.h" -#include "common.h" - - -char* usage = -"Usage: cpabe-dec [OPTION ...] PUB_KEY PRIV_KEY FILE\n" -"\n" -"Decrypt FILE using private key PRIV_KEY and assuming public key\n" -"PUB_KEY. If the name of FILE is X.cpabe, the decrypted file will\n" -"be written as X and FILE will be removed. Otherwise the file will be\n" -"decrypted in place. Use of the -o option overrides this\n" -"behavior.\n" -"\n" -"Mandatory arguments to long options are mandatory for short options too.\n\n" -" -h, --help print this message\n\n" -" -v, --version print version information\n\n" -" -k, --keep-input-file don't delete original file\n\n" -" -o, --output FILE write output to FILE\n\n" -" -d, --deterministic use deterministic \"random\" numbers\n" -" (only for debugging)\n\n" -/* " -s, --no-opt-sat pick an arbitrary way of satisfying the policy\n" */ -/* " (only for performance comparison)\n\n" */ -/* " -n, --naive-dec use slower decryption algorithm\n" */ -/* " (only for performance comparison)\n\n" */ -/* " -f, --flatten use slightly different decryption algorithm\n" */ -/* " (may result in higher or lower performance)\n\n" */ -/* " -r, --report-ops report numbers of group operations\n" */ -/* " (only for performance evaluation)\n\n" */ -""; - -/* enum { */ -/* DEC_NAIVE, */ -/* DEC_FLATTEN, */ -/* DEC_MERGE, */ -/* } dec_strategy = DEC_MERGE; */ - -char* pub_file = 0; -char* prv_file = 0; -char* in_file = 0; -char* out_file = 0; -/* int no_opt_sat = 0; */ -/* int report_ops = 0; */ -int keep = 0; - -/* int num_pairings = 0; */ -/* int num_exps = 0; */ -/* int num_muls = 0; */ - -void -parse_args( int argc, char** argv ) -{ - int i; - - for( i = 1; i < argc; i++ ) - if( !strcmp(argv[i], "-h") || !strcmp(argv[i], "--help") ) - { - printf("%s", usage); - exit(0); - } - else if( !strcmp(argv[i], "-v") || !strcmp(argv[i], "--version") ) - { - printf(CPABE_VERSION, "-dec"); - exit(0); - } - else if( !strcmp(argv[i], "-k") || !strcmp(argv[i], "--keep-input-file") ) - { - keep = 1; - } - else if( !strcmp(argv[i], "-o") || !strcmp(argv[i], "--output") ) - { - if( ++i >= argc ) - die(usage); - else - out_file = argv[i]; - } - else if( !strcmp(argv[i], "-d") || !strcmp(argv[i], "--deterministic") ) - { - pbc_random_set_deterministic(0); - } -/* else if( !strcmp(argv[i], "-s") || !strcmp(argv[i], "--no-opt-sat") ) */ -/* { */ -/* no_opt_sat = 1; */ -/* } */ -/* else if( !strcmp(argv[i], "-n") || !strcmp(argv[i], "--naive-dec") ) */ -/* { */ -/* dec_strategy = DEC_NAIVE; */ -/* } */ -/* else if( !strcmp(argv[i], "-f") || !strcmp(argv[i], "--flatten") ) */ -/* { */ -/* dec_strategy = DEC_FLATTEN; */ -/* } */ -/* else if( !strcmp(argv[i], "-r") || !strcmp(argv[i], "--report-ops") ) */ -/* { */ -/* report_ops = 1; */ -/* } */ - else if( !pub_file ) - { - pub_file = argv[i]; - } - else if( !prv_file ) - { - prv_file = argv[i]; - } - else if( !in_file ) - { - in_file = argv[i]; - } - else - die(usage); - - if( !pub_file || !prv_file || !in_file ) - die(usage); - - if( !out_file ) - { - if( strlen(in_file) > 6 && - !strcmp(in_file + strlen(in_file) - 6, ".cpabe") ) - out_file = g_strndup(in_file, strlen(in_file) - 6); - else - out_file = strdup(in_file); - } - - if( keep && !strcmp(in_file, out_file) ) - die("cannot keep input file when decrypting file in place (try -o)\n"); -} - -int -main( int argc, char** argv ) -{ - bswabe_pub_t* pub; - bswabe_prv_t* prv; - int file_len; - GByteArray* aes_buf; - GByteArray* plt; - GByteArray* cph_buf; - bswabe_cph_t* cph; - element_t m; - - parse_args(argc, argv); - - pub = bswabe_pub_unserialize(suck_file(pub_file), 1); - prv = bswabe_prv_unserialize(pub, suck_file(prv_file), 1); - - read_cpabe_file(in_file, &cph_buf, &file_len, &aes_buf); - - cph = bswabe_cph_unserialize(pub, cph_buf, 1); - if( !bswabe_dec(pub, prv, cph, m) ) - die("%s", bswabe_error()); - bswabe_cph_free(cph); - plt = aes_128_cbc_decrypt(aes_buf, m); - g_byte_array_set_size(plt, file_len); - g_byte_array_free(aes_buf, 1); - - spit_file(out_file, plt, 1); - - if( !keep ) - unlink(in_file); - - /* report ops if necessary */ -/* if( report_ops ) */ -/* printf("pairings: %5d\n" */ -/* "exponentiations: %5d\n" */ -/* "multiplications: %5d\n", num_pairings, num_exps, num_muls); */ - - return 0; -} |