82e7917294
* Added authors and licenses and plugin access to crypto related files * removed `rz_hash` and related files * introduced `rz_msg_digest_*` with plugins * updated all old methods with newer ones. * added HMAC support to `rz-hash` (moved key option under `-K`) * removed wrong algorithms on `woD`/`woE` * fixed parity digest size * fixed the behaviour on all hash functions * added unit test for hash * optimized code for HMAC key calculation * removed hash legacy tests
77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
// SPDX-FileCopyrightText: 2016-2017 rakholiyajenish.07 <rakholiyajenish.07@gmail.com>
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// SPDX-License-Identifier: LGPL-3.0-only
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#include <rz_lib.h>
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#include <rz_crypto.h>
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#include <rz_util.h>
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static bool base64_set_key(RzCrypto *cry, const ut8 *key, int keylen, int mode, int direction) {
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cry->dir = direction;
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return true;
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}
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static int base64_get_key_size(RzCrypto *cry) {
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return 0;
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}
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static bool base64_use(const char *algo) {
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return !strcmp(algo, "base64");
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}
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static bool update(RzCrypto *cry, const ut8 *buf, int len) {
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if (len < 1) {
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return false;
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}
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int olen = 0;
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ut8 *obuf = NULL;
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if (cry->dir == RZ_CRYPTO_DIR_ENCRYPT) {
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olen = ((len + 2) / 3) * 4;
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obuf = malloc(olen + 1);
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if (!obuf) {
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return false;
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}
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rz_base64_encode((char *)obuf, (const ut8 *)buf, len);
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} else {
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olen = 4 + ((len / 4) * 3);
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if (len > 0) {
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olen -= (buf[len - 1] == '=') ? ((buf[len - 2] == '=') ? 2 : 1) : 0;
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}
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obuf = malloc(olen + 4);
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if (!obuf) {
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return false;
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}
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olen = rz_base64_decode(obuf, (const char *)buf, len);
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}
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if (olen > 0) {
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rz_crypto_append(cry, obuf, olen);
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}
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free(obuf);
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return true;
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}
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static bool final(RzCrypto *cry, const ut8 *buf, int len) {
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if (!buf) {
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return true;
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}
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return update(cry, buf, len);
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}
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RzCryptoPlugin rz_crypto_plugin_base64 = {
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.name = "base64",
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.author = "rakholiyajenish.07",
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.license = "LGPL-3",
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.set_key = base64_set_key,
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.get_key_size = base64_get_key_size,
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.use = base64_use,
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.update = update,
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.final = final
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};
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#ifndef RZ_PLUGIN_INCORE
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RZ_API RzLibStruct rizin_plugin = {
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.type = RZ_LIB_TYPE_CRYPTO,
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.data = &rz_crypto_plugin_base64,
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.version = RZ_VERSION
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};
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#endif
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