mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-29 19:27:43 +00:00
369 lines
10 KiB
C
369 lines
10 KiB
C
/* pmeth_fn.c */
|
|
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
|
|
* project 2006.
|
|
*/
|
|
/* ====================================================================
|
|
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this
|
|
* software must display the following acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
|
|
*
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* licensing@OpenSSL.org.
|
|
*
|
|
* 5. Products derived from this software may not be called "OpenSSL"
|
|
* nor may "OpenSSL" appear in their names without prior written
|
|
* permission of the OpenSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
* ====================================================================
|
|
*
|
|
* This product includes cryptographic software written by Eric Young
|
|
* (eay@cryptsoft.com). This product includes software written by Tim
|
|
* Hudson (tjh@cryptsoft.com).
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include "cryptlib.h"
|
|
#include <openssl/objects.h>
|
|
#include <openssl/evp.h>
|
|
#include "evp_locl.h"
|
|
|
|
#define M_check_autoarg(ctx, arg, arglen, err) \
|
|
if (ctx->pmeth->flags & EVP_PKEY_FLAG_AUTOARGLEN) \
|
|
{ \
|
|
size_t pksize = (size_t)EVP_PKEY_size(ctx->pkey); \
|
|
if (!arg) \
|
|
{ \
|
|
*arglen = pksize; \
|
|
return 1; \
|
|
} \
|
|
else if (*arglen < pksize) \
|
|
{ \
|
|
EVPerr(err, EVP_R_BUFFER_TOO_SMALL); /*ckerr_ignore*/\
|
|
return 0; \
|
|
} \
|
|
}
|
|
|
|
int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx)
|
|
{
|
|
int ret;
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->sign)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_SIGN_INIT,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
ctx->operation = EVP_PKEY_OP_SIGN;
|
|
if (!ctx->pmeth->sign_init)
|
|
return 1;
|
|
ret = ctx->pmeth->sign_init(ctx);
|
|
if (ret <= 0)
|
|
ctx->operation = EVP_PKEY_OP_UNDEFINED;
|
|
return ret;
|
|
}
|
|
|
|
int EVP_PKEY_sign(EVP_PKEY_CTX *ctx,
|
|
unsigned char *sig, size_t *siglen,
|
|
const unsigned char *tbs, size_t tbslen)
|
|
{
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->sign)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_SIGN,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
if (ctx->operation != EVP_PKEY_OP_SIGN)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_SIGN, EVP_R_OPERATON_NOT_INITIALIZED);
|
|
return -1;
|
|
}
|
|
M_check_autoarg(ctx, sig, siglen, EVP_F_EVP_PKEY_SIGN)
|
|
return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen);
|
|
}
|
|
|
|
int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx)
|
|
{
|
|
int ret;
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->verify)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_VERIFY_INIT,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
ctx->operation = EVP_PKEY_OP_VERIFY;
|
|
if (!ctx->pmeth->verify_init)
|
|
return 1;
|
|
ret = ctx->pmeth->verify_init(ctx);
|
|
if (ret <= 0)
|
|
ctx->operation = EVP_PKEY_OP_UNDEFINED;
|
|
return ret;
|
|
}
|
|
|
|
int EVP_PKEY_verify(EVP_PKEY_CTX *ctx,
|
|
const unsigned char *sig, size_t siglen,
|
|
const unsigned char *tbs, size_t tbslen)
|
|
{
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->verify)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_VERIFY,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
if (ctx->operation != EVP_PKEY_OP_VERIFY)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_VERIFY, EVP_R_OPERATON_NOT_INITIALIZED);
|
|
return -1;
|
|
}
|
|
return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen);
|
|
}
|
|
|
|
int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx)
|
|
{
|
|
int ret;
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
ctx->operation = EVP_PKEY_OP_VERIFYRECOVER;
|
|
if (!ctx->pmeth->verify_recover_init)
|
|
return 1;
|
|
ret = ctx->pmeth->verify_recover_init(ctx);
|
|
if (ret <= 0)
|
|
ctx->operation = EVP_PKEY_OP_UNDEFINED;
|
|
return ret;
|
|
}
|
|
|
|
int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
|
|
unsigned char *rout, size_t *routlen,
|
|
const unsigned char *sig, size_t siglen)
|
|
{
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER, EVP_R_OPERATON_NOT_INITIALIZED);
|
|
return -1;
|
|
}
|
|
M_check_autoarg(ctx, rout, routlen, EVP_F_EVP_PKEY_VERIFY_RECOVER)
|
|
return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen);
|
|
}
|
|
|
|
int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx)
|
|
{
|
|
int ret;
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_ENCRYPT_INIT,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
ctx->operation = EVP_PKEY_OP_ENCRYPT;
|
|
if (!ctx->pmeth->encrypt_init)
|
|
return 1;
|
|
ret = ctx->pmeth->encrypt_init(ctx);
|
|
if (ret <= 0)
|
|
ctx->operation = EVP_PKEY_OP_UNDEFINED;
|
|
return ret;
|
|
}
|
|
|
|
int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx,
|
|
unsigned char *out, size_t *outlen,
|
|
const unsigned char *in, size_t inlen)
|
|
{
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_ENCRYPT,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
if (ctx->operation != EVP_PKEY_OP_ENCRYPT)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_ENCRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
|
|
return -1;
|
|
}
|
|
M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_ENCRYPT)
|
|
return ctx->pmeth->encrypt(ctx, out, outlen, in, inlen);
|
|
}
|
|
|
|
int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx)
|
|
{
|
|
int ret;
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_DECRYPT_INIT,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
ctx->operation = EVP_PKEY_OP_DECRYPT;
|
|
if (!ctx->pmeth->decrypt_init)
|
|
return 1;
|
|
ret = ctx->pmeth->decrypt_init(ctx);
|
|
if (ret <= 0)
|
|
ctx->operation = EVP_PKEY_OP_UNDEFINED;
|
|
return ret;
|
|
}
|
|
|
|
int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx,
|
|
unsigned char *out, size_t *outlen,
|
|
const unsigned char *in, size_t inlen)
|
|
{
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_DECRYPT,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
if (ctx->operation != EVP_PKEY_OP_DECRYPT)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_DECRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
|
|
return -1;
|
|
}
|
|
M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_DECRYPT)
|
|
return ctx->pmeth->decrypt(ctx, out, outlen, in, inlen);
|
|
}
|
|
|
|
|
|
int EVP_PKEY_derive_init(EVP_PKEY_CTX *ctx)
|
|
{
|
|
int ret;
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->derive)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_DERIVE_INIT,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
ctx->operation = EVP_PKEY_OP_DERIVE;
|
|
if (!ctx->pmeth->derive_init)
|
|
return 1;
|
|
ret = ctx->pmeth->derive_init(ctx);
|
|
if (ret <= 0)
|
|
ctx->operation = EVP_PKEY_OP_UNDEFINED;
|
|
return ret;
|
|
}
|
|
|
|
int EVP_PKEY_derive_set_peer(EVP_PKEY_CTX *ctx, EVP_PKEY *peer)
|
|
{
|
|
int ret;
|
|
if (!ctx || !ctx->pmeth || !(ctx->pmeth->derive||ctx->pmeth->encrypt||ctx->pmeth->decrypt) || !ctx->pmeth->ctrl)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
if (ctx->operation != EVP_PKEY_OP_DERIVE && ctx->operation != EVP_PKEY_OP_ENCRYPT && ctx->operation != EVP_PKEY_OP_DECRYPT)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
|
|
EVP_R_OPERATON_NOT_INITIALIZED);
|
|
return -1;
|
|
}
|
|
|
|
ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 0, peer);
|
|
|
|
if (ret <= 0)
|
|
return ret;
|
|
|
|
if (ret == 2)
|
|
return 1;
|
|
|
|
if (!ctx->pkey)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_NO_KEY_SET);
|
|
return -1;
|
|
}
|
|
|
|
if (ctx->pkey->type != peer->type)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
|
|
EVP_R_DIFFERENT_KEY_TYPES);
|
|
return -1;
|
|
}
|
|
|
|
/* ran@cryptocom.ru: For clarity. The error is if parameters in peer are
|
|
* present (!missing) but don't match. EVP_PKEY_cmp_parameters may return
|
|
* 1 (match), 0 (don't match) and -2 (comparison is not defined). -1
|
|
* (different key types) is impossible here because it is checked earlier.
|
|
* -2 is OK for us here, as well as 1, so we can check for 0 only. */
|
|
if (!EVP_PKEY_missing_parameters(peer) &&
|
|
!EVP_PKEY_cmp_parameters(ctx->pkey, peer))
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
|
|
EVP_R_DIFFERENT_PARAMETERS);
|
|
return -1;
|
|
}
|
|
|
|
if (ctx->peerkey)
|
|
EVP_PKEY_free(ctx->peerkey);
|
|
ctx->peerkey = peer;
|
|
|
|
ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 1, peer);
|
|
|
|
if (ret <= 0)
|
|
{
|
|
ctx->peerkey = NULL;
|
|
return ret;
|
|
}
|
|
|
|
CRYPTO_add(&peer->references,1,CRYPTO_LOCK_EVP_PKEY);
|
|
return 1;
|
|
}
|
|
|
|
|
|
int EVP_PKEY_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *pkeylen)
|
|
{
|
|
if (!ctx || !ctx->pmeth || !ctx->pmeth->derive)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_DERIVE,
|
|
EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
|
|
return -2;
|
|
}
|
|
if (ctx->operation != EVP_PKEY_OP_DERIVE)
|
|
{
|
|
EVPerr(EVP_F_EVP_PKEY_DERIVE, EVP_R_OPERATON_NOT_INITIALIZED);
|
|
return -1;
|
|
}
|
|
M_check_autoarg(ctx, key, pkeylen, EVP_F_EVP_PKEY_DERIVE)
|
|
return ctx->pmeth->derive(ctx, key, pkeylen);
|
|
}
|
|
|