OVMS3/OVMS.V3/components/wolfssl/wolfcrypt/src/cryptocb.c

710 lines
20 KiB
C

/* cryptocb.c
*
* Copyright (C) 2006-2020 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* This framework provides a central place for crypto hardware integration
using the devId scheme. If not supported return `CRYPTOCB_UNAVAILABLE`. */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <wolfssl/wolfcrypt/settings.h>
#ifdef WOLF_CRYPTO_CB
#include <wolfssl/wolfcrypt/cryptocb.h>
#include <wolfssl/wolfcrypt/error-crypt.h>
#include <wolfssl/wolfcrypt/logging.h>
/* TODO: Consider linked list with mutex */
#ifndef MAX_CRYPTO_DEVID_CALLBACKS
#define MAX_CRYPTO_DEVID_CALLBACKS 8
#endif
typedef struct CryptoCb {
int devId;
CryptoDevCallbackFunc cb;
void* ctx;
} CryptoCb;
static WOLFSSL_GLOBAL CryptoCb gCryptoDev[MAX_CRYPTO_DEVID_CALLBACKS];
static CryptoCb* wc_CryptoCb_FindDevice(int devId)
{
int i;
for (i=0; i<MAX_CRYPTO_DEVID_CALLBACKS; i++) {
if (gCryptoDev[i].devId == devId)
return &gCryptoDev[i];
}
return NULL;
}
static CryptoCb* wc_CryptoCb_FindDeviceByIndex(int startIdx)
{
int i;
for (i=startIdx; i<MAX_CRYPTO_DEVID_CALLBACKS; i++) {
if (gCryptoDev[i].devId != INVALID_DEVID)
return &gCryptoDev[i];
}
return NULL;
}
static WC_INLINE int wc_CryptoCb_TranslateErrorCode(int ret)
{
if (ret == NOT_COMPILED_IN) {
/* backwards compatibility for older NOT_COMPILED_IN syntax */
ret = CRYPTOCB_UNAVAILABLE;
}
return ret;
}
void wc_CryptoCb_Init(void)
{
int i;
for (i=0; i<MAX_CRYPTO_DEVID_CALLBACKS; i++) {
gCryptoDev[i].devId = INVALID_DEVID;
}
}
int wc_CryptoCb_GetDevIdAtIndex(int startIdx)
{
int devId = INVALID_DEVID;
CryptoCb* dev = wc_CryptoCb_FindDeviceByIndex(startIdx);
if (dev) {
devId = dev->devId;
}
return devId;
}
int wc_CryptoCb_RegisterDevice(int devId, CryptoDevCallbackFunc cb, void* ctx)
{
/* find existing or new */
CryptoCb* dev = wc_CryptoCb_FindDevice(devId);
if (dev == NULL)
dev = wc_CryptoCb_FindDevice(INVALID_DEVID);
if (dev == NULL)
return BUFFER_E; /* out of devices */
dev->devId = devId;
dev->cb = cb;
dev->ctx = ctx;
return 0;
}
void wc_CryptoCb_UnRegisterDevice(int devId)
{
CryptoCb* dev = wc_CryptoCb_FindDevice(devId);
if (dev) {
XMEMSET(dev, 0, sizeof(*dev));
dev->devId = INVALID_DEVID;
}
}
#ifndef NO_RSA
int wc_CryptoCb_Rsa(const byte* in, word32 inLen, byte* out,
word32* outLen, int type, RsaKey* key, WC_RNG* rng)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
if (key == NULL)
return ret;
/* locate registered callback */
dev = wc_CryptoCb_FindDevice(key->devId);
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_PK;
cryptoInfo.pk.type = WC_PK_TYPE_RSA;
cryptoInfo.pk.rsa.in = in;
cryptoInfo.pk.rsa.inLen = inLen;
cryptoInfo.pk.rsa.out = out;
cryptoInfo.pk.rsa.outLen = outLen;
cryptoInfo.pk.rsa.type = type;
cryptoInfo.pk.rsa.key = key;
cryptoInfo.pk.rsa.rng = rng;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#ifdef WOLFSSL_KEY_GEN
int wc_CryptoCb_MakeRsaKey(RsaKey* key, int size, long e, WC_RNG* rng)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
if (key == NULL)
return ret;
/* locate registered callback */
dev = wc_CryptoCb_FindDevice(key->devId);
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_PK;
cryptoInfo.pk.type = WC_PK_TYPE_RSA_KEYGEN;
cryptoInfo.pk.rsakg.key = key;
cryptoInfo.pk.rsakg.size = size;
cryptoInfo.pk.rsakg.e = e;
cryptoInfo.pk.rsakg.rng = rng;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#endif
int wc_CryptoCb_RsaCheckPrivKey(RsaKey* key, const byte* pubKey,
word32 pubKeySz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
if (key == NULL)
return ret;
/* locate registered callback */
dev = wc_CryptoCb_FindDevice(key->devId);
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_PK;
cryptoInfo.pk.type = WC_PK_TYPE_RSA_CHECK_PRIV_KEY;
cryptoInfo.pk.rsa_check.key = key;
cryptoInfo.pk.rsa_check.pubKey = pubKey;
cryptoInfo.pk.rsa_check.pubKeySz = pubKeySz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#endif /* !NO_RSA */
#ifdef HAVE_ECC
int wc_CryptoCb_MakeEccKey(WC_RNG* rng, int keySize, ecc_key* key, int curveId)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
if (key == NULL)
return ret;
/* locate registered callback */
dev = wc_CryptoCb_FindDevice(key->devId);
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_PK;
cryptoInfo.pk.type = WC_PK_TYPE_EC_KEYGEN;
cryptoInfo.pk.eckg.rng = rng;
cryptoInfo.pk.eckg.size = keySize;
cryptoInfo.pk.eckg.key = key;
cryptoInfo.pk.eckg.curveId = curveId;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
int wc_CryptoCb_Ecdh(ecc_key* private_key, ecc_key* public_key,
byte* out, word32* outlen)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
if (private_key == NULL)
return ret;
/* locate registered callback */
dev = wc_CryptoCb_FindDevice(private_key->devId);
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_PK;
cryptoInfo.pk.type = WC_PK_TYPE_ECDH;
cryptoInfo.pk.ecdh.private_key = private_key;
cryptoInfo.pk.ecdh.public_key = public_key;
cryptoInfo.pk.ecdh.out = out;
cryptoInfo.pk.ecdh.outlen = outlen;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
int wc_CryptoCb_EccSign(const byte* in, word32 inlen, byte* out,
word32 *outlen, WC_RNG* rng, ecc_key* key)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
if (key == NULL)
return ret;
/* locate registered callback */
dev = wc_CryptoCb_FindDevice(key->devId);
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_PK;
cryptoInfo.pk.type = WC_PK_TYPE_ECDSA_SIGN;
cryptoInfo.pk.eccsign.in = in;
cryptoInfo.pk.eccsign.inlen = inlen;
cryptoInfo.pk.eccsign.out = out;
cryptoInfo.pk.eccsign.outlen = outlen;
cryptoInfo.pk.eccsign.rng = rng;
cryptoInfo.pk.eccsign.key = key;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
int wc_CryptoCb_EccVerify(const byte* sig, word32 siglen,
const byte* hash, word32 hashlen, int* res, ecc_key* key)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
if (key == NULL)
return ret;
/* locate registered callback */
dev = wc_CryptoCb_FindDevice(key->devId);
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_PK;
cryptoInfo.pk.type = WC_PK_TYPE_ECDSA_VERIFY;
cryptoInfo.pk.eccverify.sig = sig;
cryptoInfo.pk.eccverify.siglen = siglen;
cryptoInfo.pk.eccverify.hash = hash;
cryptoInfo.pk.eccverify.hashlen = hashlen;
cryptoInfo.pk.eccverify.res = res;
cryptoInfo.pk.eccverify.key = key;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
int wc_CryptoCb_EccCheckPrivKey(ecc_key* key, const byte* pubKey,
word32 pubKeySz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
if (key == NULL)
return ret;
/* locate registered callback */
dev = wc_CryptoCb_FindDevice(key->devId);
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_PK;
cryptoInfo.pk.type = WC_PK_TYPE_EC_CHECK_PRIV_KEY;
cryptoInfo.pk.ecc_check.key = key;
cryptoInfo.pk.ecc_check.pubKey = pubKey;
cryptoInfo.pk.ecc_check.pubKeySz = pubKeySz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#endif /* HAVE_ECC */
#ifndef NO_AES
#ifdef HAVE_AESGCM
int wc_CryptoCb_AesGcmEncrypt(Aes* aes, byte* out,
const byte* in, word32 sz,
const byte* iv, word32 ivSz,
byte* authTag, word32 authTagSz,
const byte* authIn, word32 authInSz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
if (aes) {
dev = wc_CryptoCb_FindDevice(aes->devId);
}
else {
/* locate first callback and try using it */
dev = wc_CryptoCb_FindDeviceByIndex(0);
}
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_CIPHER;
cryptoInfo.cipher.type = WC_CIPHER_AES_GCM;
cryptoInfo.cipher.enc = 1;
cryptoInfo.cipher.aesgcm_enc.aes = aes;
cryptoInfo.cipher.aesgcm_enc.out = out;
cryptoInfo.cipher.aesgcm_enc.in = in;
cryptoInfo.cipher.aesgcm_enc.sz = sz;
cryptoInfo.cipher.aesgcm_enc.iv = iv;
cryptoInfo.cipher.aesgcm_enc.ivSz = ivSz;
cryptoInfo.cipher.aesgcm_enc.authTag = authTag;
cryptoInfo.cipher.aesgcm_enc.authTagSz = authTagSz;
cryptoInfo.cipher.aesgcm_enc.authIn = authIn;
cryptoInfo.cipher.aesgcm_enc.authInSz = authInSz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
int wc_CryptoCb_AesGcmDecrypt(Aes* aes, byte* out,
const byte* in, word32 sz,
const byte* iv, word32 ivSz,
const byte* authTag, word32 authTagSz,
const byte* authIn, word32 authInSz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
if (aes) {
dev = wc_CryptoCb_FindDevice(aes->devId);
}
else {
/* locate first callback and try using it */
dev = wc_CryptoCb_FindDeviceByIndex(0);
}
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_CIPHER;
cryptoInfo.cipher.type = WC_CIPHER_AES_GCM;
cryptoInfo.cipher.enc = 0;
cryptoInfo.cipher.aesgcm_dec.aes = aes;
cryptoInfo.cipher.aesgcm_dec.out = out;
cryptoInfo.cipher.aesgcm_dec.in = in;
cryptoInfo.cipher.aesgcm_dec.sz = sz;
cryptoInfo.cipher.aesgcm_dec.iv = iv;
cryptoInfo.cipher.aesgcm_dec.ivSz = ivSz;
cryptoInfo.cipher.aesgcm_dec.authTag = authTag;
cryptoInfo.cipher.aesgcm_dec.authTagSz = authTagSz;
cryptoInfo.cipher.aesgcm_dec.authIn = authIn;
cryptoInfo.cipher.aesgcm_dec.authInSz = authInSz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#endif /* HAVE_AESGCM */
#ifdef HAVE_AES_CBC
int wc_CryptoCb_AesCbcEncrypt(Aes* aes, byte* out,
const byte* in, word32 sz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
if (aes) {
dev = wc_CryptoCb_FindDevice(aes->devId);
}
else {
/* locate first callback and try using it */
dev = wc_CryptoCb_FindDeviceByIndex(0);
}
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_CIPHER;
cryptoInfo.cipher.type = WC_CIPHER_AES_CBC;
cryptoInfo.cipher.enc = 1;
cryptoInfo.cipher.aescbc.aes = aes;
cryptoInfo.cipher.aescbc.out = out;
cryptoInfo.cipher.aescbc.in = in;
cryptoInfo.cipher.aescbc.sz = sz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
int wc_CryptoCb_AesCbcDecrypt(Aes* aes, byte* out,
const byte* in, word32 sz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
if (aes) {
dev = wc_CryptoCb_FindDevice(aes->devId);
}
else {
/* locate first callback and try using it */
dev = wc_CryptoCb_FindDeviceByIndex(0);
}
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_CIPHER;
cryptoInfo.cipher.type = WC_CIPHER_AES_CBC;
cryptoInfo.cipher.enc = 0;
cryptoInfo.cipher.aescbc.aes = aes;
cryptoInfo.cipher.aescbc.out = out;
cryptoInfo.cipher.aescbc.in = in;
cryptoInfo.cipher.aescbc.sz = sz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#endif /* HAVE_AES_CBC */
#endif /* !NO_AES */
#ifndef NO_DES3
int wc_CryptoCb_Des3Encrypt(Des3* des3, byte* out,
const byte* in, word32 sz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
if (des3) {
dev = wc_CryptoCb_FindDevice(des3->devId);
}
else {
/* locate first callback and try using it */
dev = wc_CryptoCb_FindDeviceByIndex(0);
}
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_CIPHER;
cryptoInfo.cipher.type = WC_CIPHER_DES3;
cryptoInfo.cipher.enc = 1;
cryptoInfo.cipher.des3.des = des3;
cryptoInfo.cipher.des3.out = out;
cryptoInfo.cipher.des3.in = in;
cryptoInfo.cipher.des3.sz = sz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
int wc_CryptoCb_Des3Decrypt(Des3* des3, byte* out,
const byte* in, word32 sz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
if (des3) {
dev = wc_CryptoCb_FindDevice(des3->devId);
}
else {
/* locate first callback and try using it */
dev = wc_CryptoCb_FindDeviceByIndex(0);
}
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_CIPHER;
cryptoInfo.cipher.type = WC_CIPHER_DES3;
cryptoInfo.cipher.enc = 0;
cryptoInfo.cipher.des3.des = des3;
cryptoInfo.cipher.des3.out = out;
cryptoInfo.cipher.des3.in = in;
cryptoInfo.cipher.des3.sz = sz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#endif /* !NO_DES3 */
#ifndef NO_SHA
int wc_CryptoCb_ShaHash(wc_Sha* sha, const byte* in,
word32 inSz, byte* digest)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
if (sha) {
dev = wc_CryptoCb_FindDevice(sha->devId);
}
else {
/* locate first callback and try using it */
dev = wc_CryptoCb_FindDeviceByIndex(0);
}
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_HASH;
cryptoInfo.hash.type = WC_HASH_TYPE_SHA;
cryptoInfo.hash.sha1 = sha;
cryptoInfo.hash.in = in;
cryptoInfo.hash.inSz = inSz;
cryptoInfo.hash.digest = digest;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#endif /* !NO_SHA */
#ifndef NO_SHA256
int wc_CryptoCb_Sha256Hash(wc_Sha256* sha256, const byte* in,
word32 inSz, byte* digest)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
if (sha256) {
dev = wc_CryptoCb_FindDevice(sha256->devId);
}
else {
/* locate first callback and try using it */
dev = wc_CryptoCb_FindDeviceByIndex(0);
}
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_HASH;
cryptoInfo.hash.type = WC_HASH_TYPE_SHA256;
cryptoInfo.hash.sha256 = sha256;
cryptoInfo.hash.in = in;
cryptoInfo.hash.inSz = inSz;
cryptoInfo.hash.digest = digest;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#endif /* !NO_SHA256 */
#ifndef NO_HMAC
int wc_CryptoCb_Hmac(Hmac* hmac, int macType, const byte* in, word32 inSz,
byte* digest)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
if (hmac == NULL)
return ret;
/* locate registered callback */
dev = wc_CryptoCb_FindDevice(hmac->devId);
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_HMAC;
cryptoInfo.hmac.macType = macType;
cryptoInfo.hmac.in = in;
cryptoInfo.hmac.inSz = inSz;
cryptoInfo.hmac.digest = digest;
cryptoInfo.hmac.hmac = hmac;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#endif /* !NO_HMAC */
#ifndef WC_NO_RNG
int wc_CryptoCb_RandomBlock(WC_RNG* rng, byte* out, word32 sz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
if (rng) {
dev = wc_CryptoCb_FindDevice(rng->devId);
}
else {
/* locate first callback and try using it */
dev = wc_CryptoCb_FindDeviceByIndex(0);
}
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_RNG;
cryptoInfo.rng.rng = rng;
cryptoInfo.rng.out = out;
cryptoInfo.rng.sz = sz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
int wc_CryptoCb_RandomSeed(OS_Seed* os, byte* seed, word32 sz)
{
int ret = CRYPTOCB_UNAVAILABLE;
CryptoCb* dev;
/* locate registered callback */
dev = wc_CryptoCb_FindDevice(os->devId);
if (dev && dev->cb) {
wc_CryptoInfo cryptoInfo;
XMEMSET(&cryptoInfo, 0, sizeof(cryptoInfo));
cryptoInfo.algo_type = WC_ALGO_TYPE_SEED;
cryptoInfo.seed.os = os;
cryptoInfo.seed.seed = seed;
cryptoInfo.seed.sz = sz;
ret = dev->cb(dev->devId, &cryptoInfo, dev->ctx);
}
return wc_CryptoCb_TranslateErrorCode(ret);
}
#endif /* !WC_NO_RNG */
#endif /* WOLF_CRYPTO_CB */