54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
#include <r_lib.h>
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#include <r_crypto.h>
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#include <r_util.h>
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#define INSIZE 32768
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static int flag = 0;
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static int base91_set_key(RCrypto *cry, const ut8 *key, int keylen, int mode, int direction) {
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flag = direction;
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return true;
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}
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static int base91_get_key_size(RCrypto *cry) {
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return 0;
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}
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static bool base91_use(const char *algo) {
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return !strcmp (algo, "base91");
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}
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static int update(RCrypto *cry, const ut8 *buf, int len) {
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int olen = INSIZE; //a way to optimise memory allocation.
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ut8 *obuf = malloc (olen);
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if (flag == 0) {
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olen = r_base91_encode ((char *)obuf, (const ut8 *)buf, len);
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} else if (flag == 1) {
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olen = r_base91_decode (obuf, (const char *)buf, len);
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}
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r_crypto_append (cry, obuf, olen);
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free (obuf);
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return 0;
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}
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static int final(RCrypto *cry, const ut8 *buf, int len) {
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return update (cry, buf, len);
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}
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RCryptoPlugin r_crypto_plugin_base91 = {
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.name = "base91",
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.set_key = base91_set_key,
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.get_key_size = base91_get_key_size,
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.use = base91_use,
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.update = update,
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.final = final
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};
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#ifndef CORELIB
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struct r_lib_struct_t radare_plugin = {
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.type = R_LIB_TYPE_CRYPTO,
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.data = &r_crypto_plugin_base91,
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.version = R2_VERSION
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};
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#endif
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