8e79f2ee9c
Based on Nekogram. Key additions: - Rebrand to FoxiGram (app name, APK name, applicationId com.foxigram.app) - Embedded Xray (VLESS+Reality) proxy client via JNI libxray.so - Bundled hidden one-tap proxies (LTE + WiFi), read-only in UI - Auto-restore proxy on restart, rebind to active network (LTE/WiFi) - Server credentials externalized to git-ignored XrayServers.java (+ template) - libxray Go source included; compiled .so, keystore, google-services.json ignored
609 lines
17 KiB
C++
609 lines
17 KiB
C++
// Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <openssl/evp.h>
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#include <limits.h>
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#include <string.h>
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#include <openssl/bn.h>
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#include <openssl/bytestring.h>
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#include <openssl/digest.h>
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#include <openssl/err.h>
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#include <openssl/mem.h>
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#include <openssl/nid.h>
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#include <openssl/rsa.h>
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#include "../internal.h"
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#include "../rsa/internal.h"
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#include "internal.h"
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typedef struct {
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// Key gen parameters
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int nbits;
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BIGNUM *pub_exp;
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// RSA padding mode
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int pad_mode;
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// message digest
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const EVP_MD *md;
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// message digest for MGF1
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const EVP_MD *mgf1md;
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// PSS salt length
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int saltlen;
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// tbuf is a buffer which is either NULL, or is the size of the RSA modulus.
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// It's used to store the output of RSA operations.
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uint8_t *tbuf;
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// OAEP label
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uint8_t *oaep_label;
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size_t oaep_labellen;
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} RSA_PKEY_CTX;
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typedef struct {
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uint8_t *data;
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size_t len;
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} RSA_OAEP_LABEL_PARAMS;
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static int pkey_rsa_init(EVP_PKEY_CTX *ctx) {
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RSA_PKEY_CTX *rctx =
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reinterpret_cast<RSA_PKEY_CTX *>(OPENSSL_zalloc(sizeof(RSA_PKEY_CTX)));
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if (!rctx) {
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return 0;
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}
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rctx->nbits = 2048;
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rctx->pad_mode = RSA_PKCS1_PADDING;
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rctx->saltlen = -2;
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ctx->data = rctx;
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return 1;
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}
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static int pkey_rsa_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) {
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RSA_PKEY_CTX *dctx, *sctx;
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if (!pkey_rsa_init(dst)) {
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return 0;
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}
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sctx = reinterpret_cast<RSA_PKEY_CTX *>(src->data);
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dctx = reinterpret_cast<RSA_PKEY_CTX *>(dst->data);
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dctx->nbits = sctx->nbits;
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if (sctx->pub_exp) {
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dctx->pub_exp = BN_dup(sctx->pub_exp);
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if (!dctx->pub_exp) {
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return 0;
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}
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}
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dctx->pad_mode = sctx->pad_mode;
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dctx->md = sctx->md;
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dctx->mgf1md = sctx->mgf1md;
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dctx->saltlen = sctx->saltlen;
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if (sctx->oaep_label) {
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OPENSSL_free(dctx->oaep_label);
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dctx->oaep_label = reinterpret_cast<uint8_t *>(
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OPENSSL_memdup(sctx->oaep_label, sctx->oaep_labellen));
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if (!dctx->oaep_label) {
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return 0;
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}
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dctx->oaep_labellen = sctx->oaep_labellen;
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}
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return 1;
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}
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static void pkey_rsa_cleanup(EVP_PKEY_CTX *ctx) {
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RSA_PKEY_CTX *rctx = reinterpret_cast<RSA_PKEY_CTX *>(ctx->data);
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if (rctx == NULL) {
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return;
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}
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BN_free(rctx->pub_exp);
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OPENSSL_free(rctx->tbuf);
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OPENSSL_free(rctx->oaep_label);
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OPENSSL_free(rctx);
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}
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static int setup_tbuf(RSA_PKEY_CTX *ctx, EVP_PKEY_CTX *pk) {
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if (ctx->tbuf) {
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return 1;
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}
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ctx->tbuf =
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reinterpret_cast<uint8_t *>(OPENSSL_malloc(EVP_PKEY_size(pk->pkey)));
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if (!ctx->tbuf) {
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return 0;
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}
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return 1;
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}
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static int pkey_rsa_sign(EVP_PKEY_CTX *ctx, uint8_t *sig, size_t *siglen,
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const uint8_t *tbs, size_t tbslen) {
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RSA_PKEY_CTX *rctx = reinterpret_cast<RSA_PKEY_CTX *>(ctx->data);
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RSA *rsa = reinterpret_cast<RSA *>(ctx->pkey->pkey);
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const size_t key_len = EVP_PKEY_size(ctx->pkey);
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if (!sig) {
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*siglen = key_len;
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return 1;
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}
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if (*siglen < key_len) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_BUFFER_TOO_SMALL);
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return 0;
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}
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if (rctx->md) {
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unsigned out_len;
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switch (rctx->pad_mode) {
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case RSA_PKCS1_PADDING:
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if (!RSA_sign(EVP_MD_type(rctx->md), tbs, tbslen, sig, &out_len, rsa)) {
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return 0;
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}
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*siglen = out_len;
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return 1;
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case RSA_PKCS1_PSS_PADDING:
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return RSA_sign_pss_mgf1(rsa, siglen, sig, *siglen, tbs, tbslen,
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rctx->md, rctx->mgf1md, rctx->saltlen);
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default:
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return 0;
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}
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}
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return RSA_sign_raw(rsa, siglen, sig, *siglen, tbs, tbslen, rctx->pad_mode);
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}
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static int pkey_rsa_verify(EVP_PKEY_CTX *ctx, const uint8_t *sig, size_t siglen,
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const uint8_t *tbs, size_t tbslen) {
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RSA_PKEY_CTX *rctx = reinterpret_cast<RSA_PKEY_CTX *>(ctx->data);
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RSA *rsa = reinterpret_cast<RSA *>(ctx->pkey->pkey);
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if (rctx->md) {
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switch (rctx->pad_mode) {
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case RSA_PKCS1_PADDING:
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return RSA_verify(EVP_MD_type(rctx->md), tbs, tbslen, sig, siglen, rsa);
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case RSA_PKCS1_PSS_PADDING:
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return RSA_verify_pss_mgf1(rsa, tbs, tbslen, rctx->md, rctx->mgf1md,
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rctx->saltlen, sig, siglen);
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default:
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return 0;
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}
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}
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size_t rslen;
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const size_t key_len = EVP_PKEY_size(ctx->pkey);
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if (!setup_tbuf(rctx, ctx) ||
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!RSA_verify_raw(rsa, &rslen, rctx->tbuf, key_len, sig, siglen,
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rctx->pad_mode)) {
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return 0;
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}
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if (rslen != tbslen || CRYPTO_memcmp(tbs, rctx->tbuf, rslen) != 0) {
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OPENSSL_PUT_ERROR(RSA, RSA_R_BAD_SIGNATURE);
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return 0;
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}
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return 1;
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}
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static int pkey_rsa_verify_recover(EVP_PKEY_CTX *ctx, uint8_t *out,
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size_t *out_len, const uint8_t *sig,
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size_t sig_len) {
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RSA_PKEY_CTX *rctx = reinterpret_cast<RSA_PKEY_CTX *>(ctx->data);
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RSA *rsa = reinterpret_cast<RSA *>(ctx->pkey->pkey);
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const size_t key_len = EVP_PKEY_size(ctx->pkey);
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if (out == NULL) {
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*out_len = key_len;
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return 1;
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}
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if (*out_len < key_len) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_BUFFER_TOO_SMALL);
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return 0;
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}
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if (rctx->md == NULL) {
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return RSA_verify_raw(rsa, out_len, out, *out_len, sig, sig_len,
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rctx->pad_mode);
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}
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if (rctx->pad_mode != RSA_PKCS1_PADDING) {
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return 0;
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}
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// Assemble the encoded hash, using a placeholder hash value.
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static const uint8_t kDummyHash[EVP_MAX_MD_SIZE] = {0};
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const size_t hash_len = EVP_MD_size(rctx->md);
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uint8_t *asn1_prefix;
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size_t asn1_prefix_len;
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int asn1_prefix_allocated;
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if (!setup_tbuf(rctx, ctx) ||
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!RSA_add_pkcs1_prefix(&asn1_prefix, &asn1_prefix_len,
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&asn1_prefix_allocated, EVP_MD_type(rctx->md),
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kDummyHash, hash_len)) {
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return 0;
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}
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size_t rslen;
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int ok = 1;
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if (!RSA_verify_raw(rsa, &rslen, rctx->tbuf, key_len, sig, sig_len,
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RSA_PKCS1_PADDING) ||
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rslen != asn1_prefix_len ||
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// Compare all but the hash suffix.
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CRYPTO_memcmp(rctx->tbuf, asn1_prefix, asn1_prefix_len - hash_len) != 0) {
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ok = 0;
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}
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if (asn1_prefix_allocated) {
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OPENSSL_free(asn1_prefix);
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}
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if (!ok) {
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return 0;
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}
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if (out != NULL) {
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OPENSSL_memcpy(out, rctx->tbuf + rslen - hash_len, hash_len);
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}
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*out_len = hash_len;
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return 1;
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}
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static int pkey_rsa_encrypt(EVP_PKEY_CTX *ctx, uint8_t *out, size_t *outlen,
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const uint8_t *in, size_t inlen) {
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RSA_PKEY_CTX *rctx = reinterpret_cast<RSA_PKEY_CTX *>(ctx->data);
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RSA *rsa = reinterpret_cast<RSA *>(ctx->pkey->pkey);
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const size_t key_len = EVP_PKEY_size(ctx->pkey);
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if (!out) {
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*outlen = key_len;
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return 1;
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}
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if (*outlen < key_len) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_BUFFER_TOO_SMALL);
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return 0;
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}
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if (rctx->pad_mode == RSA_PKCS1_OAEP_PADDING) {
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if (!setup_tbuf(rctx, ctx) ||
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!RSA_padding_add_PKCS1_OAEP_mgf1(rctx->tbuf, key_len, in, inlen,
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rctx->oaep_label, rctx->oaep_labellen,
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rctx->md, rctx->mgf1md) ||
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!RSA_encrypt(rsa, outlen, out, *outlen, rctx->tbuf, key_len,
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RSA_NO_PADDING)) {
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return 0;
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}
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return 1;
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}
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return RSA_encrypt(rsa, outlen, out, *outlen, in, inlen, rctx->pad_mode);
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}
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static int pkey_rsa_decrypt(EVP_PKEY_CTX *ctx, uint8_t *out, size_t *outlen,
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const uint8_t *in, size_t inlen) {
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RSA_PKEY_CTX *rctx = reinterpret_cast<RSA_PKEY_CTX *>(ctx->data);
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RSA *rsa = reinterpret_cast<RSA *>(ctx->pkey->pkey);
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const size_t key_len = EVP_PKEY_size(ctx->pkey);
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if (!out) {
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*outlen = key_len;
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return 1;
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}
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if (*outlen < key_len) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_BUFFER_TOO_SMALL);
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return 0;
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}
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if (rctx->pad_mode == RSA_PKCS1_OAEP_PADDING) {
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size_t padded_len;
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if (!setup_tbuf(rctx, ctx) ||
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!RSA_decrypt(rsa, &padded_len, rctx->tbuf, key_len, in, inlen,
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RSA_NO_PADDING) ||
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!RSA_padding_check_PKCS1_OAEP_mgf1(
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out, outlen, key_len, rctx->tbuf, padded_len, rctx->oaep_label,
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rctx->oaep_labellen, rctx->md, rctx->mgf1md)) {
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return 0;
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}
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return 1;
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}
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return RSA_decrypt(rsa, outlen, out, key_len, in, inlen, rctx->pad_mode);
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}
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static int check_padding_md(const EVP_MD *md, int padding) {
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if (!md) {
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return 1;
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}
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if (padding == RSA_NO_PADDING) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_INVALID_PADDING_MODE);
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return 0;
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}
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return 1;
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}
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static int is_known_padding(int padding_mode) {
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switch (padding_mode) {
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case RSA_PKCS1_PADDING:
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case RSA_NO_PADDING:
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case RSA_PKCS1_OAEP_PADDING:
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case RSA_PKCS1_PSS_PADDING:
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return 1;
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default:
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return 0;
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}
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}
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static int pkey_rsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) {
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RSA_PKEY_CTX *rctx = reinterpret_cast<RSA_PKEY_CTX *>(ctx->data);
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switch (type) {
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case EVP_PKEY_CTRL_RSA_PADDING:
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if (!is_known_padding(p1) || !check_padding_md(rctx->md, p1) ||
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(p1 == RSA_PKCS1_PSS_PADDING &&
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0 == (ctx->operation & (EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY))) ||
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(p1 == RSA_PKCS1_OAEP_PADDING &&
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0 == (ctx->operation & EVP_PKEY_OP_TYPE_CRYPT))) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE);
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return 0;
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}
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if ((p1 == RSA_PKCS1_PSS_PADDING || p1 == RSA_PKCS1_OAEP_PADDING) &&
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rctx->md == NULL) {
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rctx->md = EVP_sha1();
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}
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rctx->pad_mode = p1;
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return 1;
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case EVP_PKEY_CTRL_GET_RSA_PADDING:
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*(int *)p2 = rctx->pad_mode;
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return 1;
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case EVP_PKEY_CTRL_RSA_PSS_SALTLEN:
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case EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN:
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if (rctx->pad_mode != RSA_PKCS1_PSS_PADDING) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_INVALID_PSS_SALTLEN);
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return 0;
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}
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if (type == EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN) {
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*(int *)p2 = rctx->saltlen;
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} else {
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if (p1 < -2) {
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return 0;
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}
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rctx->saltlen = p1;
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}
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return 1;
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case EVP_PKEY_CTRL_RSA_KEYGEN_BITS:
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if (p1 < 256) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_INVALID_KEYBITS);
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return 0;
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}
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rctx->nbits = p1;
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return 1;
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case EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP:
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if (!p2) {
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return 0;
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}
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BN_free(rctx->pub_exp);
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rctx->pub_exp = reinterpret_cast<BIGNUM *>(p2);
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return 1;
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case EVP_PKEY_CTRL_RSA_OAEP_MD:
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case EVP_PKEY_CTRL_GET_RSA_OAEP_MD:
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if (rctx->pad_mode != RSA_PKCS1_OAEP_PADDING) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_INVALID_PADDING_MODE);
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return 0;
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}
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if (type == EVP_PKEY_CTRL_GET_RSA_OAEP_MD) {
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*(const EVP_MD **)p2 = rctx->md;
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} else {
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rctx->md = reinterpret_cast<EVP_MD *>(p2);
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}
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return 1;
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case EVP_PKEY_CTRL_MD:
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if (!check_padding_md(reinterpret_cast<EVP_MD *>(p2), rctx->pad_mode)) {
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return 0;
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}
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rctx->md = reinterpret_cast<EVP_MD *>(p2);
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return 1;
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case EVP_PKEY_CTRL_GET_MD:
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*(const EVP_MD **)p2 = rctx->md;
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return 1;
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case EVP_PKEY_CTRL_RSA_MGF1_MD:
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case EVP_PKEY_CTRL_GET_RSA_MGF1_MD:
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if (rctx->pad_mode != RSA_PKCS1_PSS_PADDING &&
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rctx->pad_mode != RSA_PKCS1_OAEP_PADDING) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_INVALID_MGF1_MD);
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return 0;
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}
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if (type == EVP_PKEY_CTRL_GET_RSA_MGF1_MD) {
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if (rctx->mgf1md) {
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*(const EVP_MD **)p2 = rctx->mgf1md;
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} else {
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*(const EVP_MD **)p2 = rctx->md;
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}
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} else {
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rctx->mgf1md = reinterpret_cast<EVP_MD *>(p2);
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}
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return 1;
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case EVP_PKEY_CTRL_RSA_OAEP_LABEL: {
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if (rctx->pad_mode != RSA_PKCS1_OAEP_PADDING) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_INVALID_PADDING_MODE);
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return 0;
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}
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OPENSSL_free(rctx->oaep_label);
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RSA_OAEP_LABEL_PARAMS *params =
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reinterpret_cast<RSA_OAEP_LABEL_PARAMS *>(p2);
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rctx->oaep_label = params->data;
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rctx->oaep_labellen = params->len;
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return 1;
|
|
}
|
|
|
|
case EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL:
|
|
if (rctx->pad_mode != RSA_PKCS1_OAEP_PADDING) {
|
|
OPENSSL_PUT_ERROR(EVP, EVP_R_INVALID_PADDING_MODE);
|
|
return 0;
|
|
}
|
|
CBS_init((CBS *)p2, rctx->oaep_label, rctx->oaep_labellen);
|
|
return 1;
|
|
|
|
default:
|
|
OPENSSL_PUT_ERROR(EVP, EVP_R_COMMAND_NOT_SUPPORTED);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int pkey_rsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) {
|
|
RSA *rsa = NULL;
|
|
RSA_PKEY_CTX *rctx = reinterpret_cast<RSA_PKEY_CTX *>(ctx->data);
|
|
|
|
if (!rctx->pub_exp) {
|
|
rctx->pub_exp = BN_new();
|
|
if (!rctx->pub_exp || !BN_set_word(rctx->pub_exp, RSA_F4)) {
|
|
return 0;
|
|
}
|
|
}
|
|
rsa = RSA_new();
|
|
if (!rsa) {
|
|
return 0;
|
|
}
|
|
|
|
if (!RSA_generate_key_ex(rsa, rctx->nbits, rctx->pub_exp, NULL)) {
|
|
RSA_free(rsa);
|
|
return 0;
|
|
}
|
|
|
|
EVP_PKEY_assign_RSA(pkey, rsa);
|
|
return 1;
|
|
}
|
|
|
|
const EVP_PKEY_METHOD rsa_pkey_meth = {
|
|
EVP_PKEY_RSA,
|
|
pkey_rsa_init,
|
|
pkey_rsa_copy,
|
|
pkey_rsa_cleanup,
|
|
pkey_rsa_keygen,
|
|
pkey_rsa_sign,
|
|
NULL /* sign_message */,
|
|
pkey_rsa_verify,
|
|
NULL /* verify_message */,
|
|
pkey_rsa_verify_recover,
|
|
pkey_rsa_encrypt,
|
|
pkey_rsa_decrypt,
|
|
NULL /* derive */,
|
|
NULL /* paramgen */,
|
|
pkey_rsa_ctrl,
|
|
};
|
|
|
|
int EVP_PKEY_CTX_set_rsa_padding(EVP_PKEY_CTX *ctx, int padding) {
|
|
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, EVP_PKEY_CTRL_RSA_PADDING,
|
|
padding, NULL);
|
|
}
|
|
|
|
int EVP_PKEY_CTX_get_rsa_padding(EVP_PKEY_CTX *ctx, int *out_padding) {
|
|
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, EVP_PKEY_CTRL_GET_RSA_PADDING,
|
|
0, out_padding);
|
|
}
|
|
|
|
int EVP_PKEY_CTX_set_rsa_pss_keygen_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) {
|
|
return 0;
|
|
}
|
|
|
|
int EVP_PKEY_CTX_set_rsa_pss_keygen_saltlen(EVP_PKEY_CTX *ctx, int salt_len) {
|
|
return 0;
|
|
}
|
|
|
|
int EVP_PKEY_CTX_set_rsa_pss_keygen_mgf1_md(EVP_PKEY_CTX *ctx,
|
|
const EVP_MD *md) {
|
|
return 0;
|
|
}
|
|
|
|
int EVP_PKEY_CTX_set_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int salt_len) {
|
|
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA,
|
|
(EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY),
|
|
EVP_PKEY_CTRL_RSA_PSS_SALTLEN, salt_len, NULL);
|
|
}
|
|
|
|
int EVP_PKEY_CTX_get_rsa_pss_saltlen(EVP_PKEY_CTX *ctx, int *out_salt_len) {
|
|
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA,
|
|
(EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY),
|
|
EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN, 0, out_salt_len);
|
|
}
|
|
|
|
int EVP_PKEY_CTX_set_rsa_keygen_bits(EVP_PKEY_CTX *ctx, int bits) {
|
|
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN,
|
|
EVP_PKEY_CTRL_RSA_KEYGEN_BITS, bits, NULL);
|
|
}
|
|
|
|
int EVP_PKEY_CTX_set_rsa_keygen_pubexp(EVP_PKEY_CTX *ctx, BIGNUM *e) {
|
|
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN,
|
|
EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP, 0, e);
|
|
}
|
|
|
|
int EVP_PKEY_CTX_set_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) {
|
|
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,
|
|
EVP_PKEY_CTRL_RSA_OAEP_MD, 0, (void *)md);
|
|
}
|
|
|
|
int EVP_PKEY_CTX_get_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD **out_md) {
|
|
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,
|
|
EVP_PKEY_CTRL_GET_RSA_OAEP_MD, 0, (void *)out_md);
|
|
}
|
|
|
|
int EVP_PKEY_CTX_set_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) {
|
|
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA,
|
|
EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
|
|
EVP_PKEY_CTRL_RSA_MGF1_MD, 0, (void *)md);
|
|
}
|
|
|
|
int EVP_PKEY_CTX_get_rsa_mgf1_md(EVP_PKEY_CTX *ctx, const EVP_MD **out_md) {
|
|
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA,
|
|
EVP_PKEY_OP_TYPE_SIG | EVP_PKEY_OP_TYPE_CRYPT,
|
|
EVP_PKEY_CTRL_GET_RSA_MGF1_MD, 0, (void *)out_md);
|
|
}
|
|
|
|
int EVP_PKEY_CTX_set0_rsa_oaep_label(EVP_PKEY_CTX *ctx, uint8_t *label,
|
|
size_t label_len) {
|
|
RSA_OAEP_LABEL_PARAMS params = {label, label_len};
|
|
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,
|
|
EVP_PKEY_CTRL_RSA_OAEP_LABEL, 0, ¶ms);
|
|
}
|
|
|
|
int EVP_PKEY_CTX_get0_rsa_oaep_label(EVP_PKEY_CTX *ctx,
|
|
const uint8_t **out_label) {
|
|
CBS label;
|
|
if (!EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,
|
|
EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL, 0, &label)) {
|
|
return -1;
|
|
}
|
|
if (CBS_len(&label) > INT_MAX) {
|
|
OPENSSL_PUT_ERROR(EVP, ERR_R_OVERFLOW);
|
|
return -1;
|
|
}
|
|
*out_label = CBS_data(&label);
|
|
return (int)CBS_len(&label);
|
|
}
|