83 lines
No EOL
2.3 KiB
C
83 lines
No EOL
2.3 KiB
C
// SPDX-FileCopyrightText: 2026 Farhan-25 <shadowfinder1799@gmail.com>
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// SPDX-License-Identifier: LGPL-3.0-only
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#include <rz_hash.h>
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#include <rz_util/rz_assert.h>
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#include <blake2.h>
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/**
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* This file implements RzHashPlugin for BLAKE2xb:
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* - blake2xb : extendable-output (XOF) built on blake2b, arbitrary digest length
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*/
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static void *plugin_blake2xb_context_new(void) {
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return RZ_NEW0(blake2xb_state);
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}
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static void plugin_blake2xb_context_free(void *context) {
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free(context);
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}
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static RzHashSize plugin_blake2xb_digest_size(void *context) {
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return BLAKE2B_OUTBYTES;
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}
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static RzHashSize plugin_blake2xb_block_size(void *context) {
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return BLAKE2B_BLOCKBYTES;
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}
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static bool plugin_blake2xb_init(void *context) {
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rz_return_val_if_fail(context, false);
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return blake2xb_init((blake2xb_state *)context, BLAKE2B_OUTBYTES) == 0;
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}
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static bool plugin_blake2xb_update(void *context, const ut8 *data, ut64 size) {
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rz_return_val_if_fail(context && data, false);
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return blake2xb_update((blake2xb_state *)context, data, size) == 0;
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}
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static bool plugin_blake2xb_final(void *context, ut8 *digest) {
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rz_return_val_if_fail(context && digest, false);
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return blake2xb_final((blake2xb_state *)context, digest, BLAKE2B_OUTBYTES) == 0;
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}
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static bool plugin_blake2xb_small_block(const ut8 *data, ut64 size, ut8 **digest, RzHashSize *digest_size) {
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rz_return_val_if_fail(data && digest, false);
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ut8 *dgst = malloc(BLAKE2B_OUTBYTES);
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if (!dgst) {
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return false;
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}
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if (blake2xb(dgst, BLAKE2B_OUTBYTES, data, size, NULL, 0) < 0) {
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free(dgst);
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return false;
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}
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*digest = dgst;
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if (digest_size) {
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*digest_size = BLAKE2B_OUTBYTES;
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}
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return true;
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}
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RzHashPlugin rz_hash_plugin_blake2xb = {
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.name = "blake2xb",
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.license = "LGPL3",
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.author = "Farhan-25",
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.description = "BLAKE2xb cryptographic hash",
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.support_hmac = false,
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.context_new = plugin_blake2xb_context_new,
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.context_free = plugin_blake2xb_context_free,
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.digest_size = plugin_blake2xb_digest_size,
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.block_size = plugin_blake2xb_block_size,
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.init = plugin_blake2xb_init,
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.update = plugin_blake2xb_update,
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.final = plugin_blake2xb_final,
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.small_block = plugin_blake2xb_small_block,
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};
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#ifndef RZ_PLUGIN_INCORE
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RZ_API RzLibStruct rizin_plugin_blake2xb = {
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.type = RZ_LIB_TYPE_HASH,
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.data = &rz_hash_plugin_blake2xb,
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.version = RZ_VERSION
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};
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#endif |