Ashley Mills
This is a port of cyaSSL 2.7.0.
Dependents: CyaSSL_DTLS_Cellular CyaSSL_DTLS_Ethernet
Diff: ctaocrypt/src/rsa.c
- Revision:
- 0:714293de3836
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ctaocrypt/src/rsa.c Thu Sep 05 10:33:04 2013 +0000
@@ -0,0 +1,809 @@
+/* rsa.c
+ *
+ * Copyright (C) 2006-2013 wolfSSL Inc.
+ *
+ * This file is part of CyaSSL.
+ *
+ * CyaSSL 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.
+ *
+ * CyaSSL 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+
+#ifdef HAVE_CONFIG_H
+ #include <config.h>
+#endif
+
+#include <cyassl/ctaocrypt/settings.h>
+
+#ifndef NO_RSA
+
+#include <cyassl/ctaocrypt/rsa.h>
+#include <cyassl/ctaocrypt/random.h>
+#include <cyassl/ctaocrypt/ctaoerror2.h>
+#include <cyassl/ctaocrypt/logging.h>
+
+#ifdef SHOW_GEN
+ #ifdef FREESCALE_MQX
+ #include <fio.h>
+ #else
+ #include <stdio.h>
+ #endif
+#endif
+
+#ifdef HAVE_CAVIUM
+ static void InitCaviumRsaKey(RsaKey* key, void* heap);
+ static void FreeCaviumRsaKey(RsaKey* key);
+ static int CaviumRsaPublicEncrypt(const byte* in, word32 inLen, byte* out,
+ word32 outLen, RsaKey* key);
+ static int CaviumRsaPrivateDecrypt(const byte* in, word32 inLen, byte* out,
+ word32 outLen, RsaKey* key);
+ static int CaviumRsaSSL_Sign(const byte* in, word32 inLen, byte* out,
+ word32 outLen, RsaKey* key);
+ static int CaviumRsaSSL_Verify(const byte* in, word32 inLen, byte* out,
+ word32 outLen, RsaKey* key);
+#endif
+
+enum {
+ RSA_PUBLIC_ENCRYPT = 0,
+ RSA_PUBLIC_DECRYPT = 1,
+ RSA_PRIVATE_ENCRYPT = 2,
+ RSA_PRIVATE_DECRYPT = 3,
+
+ RSA_BLOCK_TYPE_1 = 1,
+ RSA_BLOCK_TYPE_2 = 2,
+
+ RSA_MIN_SIZE = 512,
+ RSA_MAX_SIZE = 4096,
+
+ RSA_MIN_PAD_SZ = 11 /* seperator + 0 + pad value + 8 pads */
+};
+
+
+void InitRsaKey(RsaKey* key, void* heap)
+{
+#ifdef HAVE_CAVIUM
+ if (key->magic == CYASSL_RSA_CAVIUM_MAGIC)
+ return InitCaviumRsaKey(key, heap);
+#endif
+
+ key->type = -1; /* haven't decided yet */
+ key->heap = heap;
+
+/* TomsFastMath doesn't use memory allocation */
+#ifndef USE_FAST_MATH
+ key->n.dp = key->e.dp = 0; /* public alloc parts */
+
+ key->d.dp = key->p.dp = 0; /* private alloc parts */
+ key->q.dp = key->dP.dp = 0;
+ key->u.dp = key->dQ.dp = 0;
+#endif
+}
+
+
+void FreeRsaKey(RsaKey* key)
+{
+ (void)key;
+
+#ifdef HAVE_CAVIUM
+ if (key->magic == CYASSL_RSA_CAVIUM_MAGIC)
+ return FreeCaviumRsaKey(key);
+#endif
+
+/* TomsFastMath doesn't use memory allocation */
+#ifndef USE_FAST_MATH
+ if (key->type == RSA_PRIVATE) {
+ mp_clear(&key->u);
+ mp_clear(&key->dQ);
+ mp_clear(&key->dP);
+ mp_clear(&key->q);
+ mp_clear(&key->p);
+ mp_clear(&key->d);
+ }
+ mp_clear(&key->e);
+ mp_clear(&key->n);
+#endif
+}
+
+static void RsaPad(const byte* input, word32 inputLen, byte* pkcsBlock,
+ word32 pkcsBlockLen, byte padValue, RNG* rng)
+{
+ if (inputLen == 0) return;
+
+ pkcsBlock[0] = 0x0; /* set first byte to zero and advance */
+ pkcsBlock++; pkcsBlockLen--;
+ pkcsBlock[0] = padValue; /* insert padValue */
+
+ if (padValue == RSA_BLOCK_TYPE_1)
+ /* pad with 0xff bytes */
+ XMEMSET(&pkcsBlock[1], 0xFF, pkcsBlockLen - inputLen - 2);
+ else {
+ /* pad with non-zero random bytes */
+ word32 padLen = pkcsBlockLen - inputLen - 1, i;
+ RNG_GenerateBlock(rng, &pkcsBlock[1], padLen);
+
+ /* remove zeros */
+ for (i = 1; i < padLen; i++)
+ if (pkcsBlock[i] == 0) pkcsBlock[i] = 0x01;
+ }
+
+ pkcsBlock[pkcsBlockLen-inputLen-1] = 0; /* separator */
+ XMEMCPY(pkcsBlock+pkcsBlockLen-inputLen, input, inputLen);
+}
+
+
+static word32 RsaUnPad(const byte *pkcsBlock, unsigned int pkcsBlockLen,
+ byte **output, byte padValue)
+{
+ word32 maxOutputLen = (pkcsBlockLen > 10) ? (pkcsBlockLen - 10) : 0,
+ invalid = 0,
+ i = 1,
+ outputLen;
+
+ if (pkcsBlock[0] != 0x0) /* skip past zero */
+ invalid = 1;
+ pkcsBlock++; pkcsBlockLen--;
+
+ /* Require block type padValue */
+ invalid = (pkcsBlock[0] != padValue) || invalid;
+
+ /* skip past the padding until we find the separator */
+ while (i<pkcsBlockLen && pkcsBlock[i++]) { /* null body */
+ }
+ if(!(i==pkcsBlockLen || pkcsBlock[i-1]==0)) {
+ CYASSL_MSG("RsaUnPad error, bad formatting");
+ return 0;
+ }
+
+ outputLen = pkcsBlockLen - i;
+ invalid = (outputLen > maxOutputLen) || invalid;
+
+ if (invalid) {
+ CYASSL_MSG("RsaUnPad error, bad formatting");
+ return 0;
+ }
+
+ *output = (byte *)(pkcsBlock + i);
+ return outputLen;
+}
+
+
+static int RsaFunction(const byte* in, word32 inLen, byte* out, word32* outLen,
+ int type, RsaKey* key)
+{
+ #define ERROR_OUT(x) { ret = x; goto done;}
+
+ mp_int tmp;
+ int ret = 0;
+ word32 keyLen, len;
+
+ if (mp_init(&tmp) != MP_OKAY)
+ return MP_INIT_E;
+
+ if (mp_read_unsigned_bin(&tmp, (byte*)in, inLen) != MP_OKAY)
+ ERROR_OUT(MP_READ_E);
+
+ if (type == RSA_PRIVATE_DECRYPT || type == RSA_PRIVATE_ENCRYPT) {
+ #ifdef RSA_LOW_MEM /* half as much memory but twice as slow */
+ if (mp_exptmod(&tmp, &key->d, &key->n, &tmp) != MP_OKAY)
+ ERROR_OUT(MP_EXPTMOD_E);
+ #else
+ #define INNER_ERROR_OUT(x) { ret = x; goto inner_done; }
+
+ mp_int tmpa, tmpb;
+
+ if (mp_init(&tmpa) != MP_OKAY)
+ ERROR_OUT(MP_INIT_E);
+
+ if (mp_init(&tmpb) != MP_OKAY) {
+ mp_clear(&tmpa);
+ ERROR_OUT(MP_INIT_E);
+ }
+
+ /* tmpa = tmp^dP mod p */
+ if (mp_exptmod(&tmp, &key->dP, &key->p, &tmpa) != MP_OKAY)
+ INNER_ERROR_OUT(MP_EXPTMOD_E);
+
+ /* tmpb = tmp^dQ mod q */
+ if (mp_exptmod(&tmp, &key->dQ, &key->q, &tmpb) != MP_OKAY)
+ INNER_ERROR_OUT(MP_EXPTMOD_E);
+
+ /* tmp = (tmpa - tmpb) * qInv (mod p) */
+ if (mp_sub(&tmpa, &tmpb, &tmp) != MP_OKAY)
+ INNER_ERROR_OUT(MP_SUB_E);
+
+ if (mp_mulmod(&tmp, &key->u, &key->p, &tmp) != MP_OKAY)
+ INNER_ERROR_OUT(MP_MULMOD_E);
+
+ /* tmp = tmpb + q * tmp */
+ if (mp_mul(&tmp, &key->q, &tmp) != MP_OKAY)
+ INNER_ERROR_OUT(MP_MUL_E);
+
+ if (mp_add(&tmp, &tmpb, &tmp) != MP_OKAY)
+ INNER_ERROR_OUT(MP_ADD_E);
+
+ inner_done:
+ mp_clear(&tmpa);
+ mp_clear(&tmpb);
+
+ if (ret != 0) return ret;
+
+ #endif /* RSA_LOW_MEM */
+ }
+ else if (type == RSA_PUBLIC_ENCRYPT || type == RSA_PUBLIC_DECRYPT) {
+ if (mp_exptmod(&tmp, &key->e, &key->n, &tmp) != MP_OKAY)
+ ERROR_OUT(MP_EXPTMOD_E);
+ }
+ else
+ ERROR_OUT(RSA_WRONG_TYPE_E);
+
+ keyLen = mp_unsigned_bin_size(&key->n);
+ if (keyLen > *outLen)
+ ERROR_OUT(RSA_BUFFER_E);
+
+ len = mp_unsigned_bin_size(&tmp);
+
+ /* pad front w/ zeros to match key length */
+ while (len < keyLen) {
+ *out++ = 0x00;
+ len++;
+ }
+
+ *outLen = keyLen;
+
+ /* convert */
+ if (mp_to_unsigned_bin(&tmp, out) != MP_OKAY)
+ ERROR_OUT(MP_TO_E);
+
+done:
+ mp_clear(&tmp);
+ return ret;
+}
+
+
+int RsaPublicEncrypt(const byte* in, word32 inLen, byte* out, word32 outLen,
+ RsaKey* key, RNG* rng)
+{
+ int sz, ret;
+
+#ifdef HAVE_CAVIUM
+ if (key->magic == CYASSL_RSA_CAVIUM_MAGIC)
+ return CaviumRsaPublicEncrypt(in, inLen, out, outLen, key);
+#endif
+
+ sz = mp_unsigned_bin_size(&key->n);
+ if (sz > (int)outLen)
+ return RSA_BUFFER_E;
+
+ if (inLen > (word32)(sz - RSA_MIN_PAD_SZ))
+ return RSA_BUFFER_E;
+
+ RsaPad(in, inLen, out, sz, RSA_BLOCK_TYPE_2, rng);
+
+ if ((ret = RsaFunction(out, sz, out, &outLen, RSA_PUBLIC_ENCRYPT, key)) < 0)
+ sz = ret;
+
+ return sz;
+}
+
+
+int RsaPrivateDecryptInline(byte* in, word32 inLen, byte** out, RsaKey* key)
+{
+ int plainLen, ret;
+
+#ifdef HAVE_CAVIUM
+ if (key->magic == CYASSL_RSA_CAVIUM_MAGIC) {
+ ret = CaviumRsaPrivateDecrypt(in, inLen, in, inLen, key);
+ if (ret > 0)
+ *out = in;
+ return ret;
+ }
+#endif
+
+ if ((ret = RsaFunction(in, inLen, in, &inLen, RSA_PRIVATE_DECRYPT, key))
+ < 0) {
+ return ret;
+ }
+
+ plainLen = RsaUnPad(in, inLen, out, RSA_BLOCK_TYPE_2);
+
+ return plainLen;
+}
+
+
+int RsaPrivateDecrypt(const byte* in, word32 inLen, byte* out, word32 outLen,
+ RsaKey* key)
+{
+ int plainLen, ret;
+ byte* tmp;
+ byte* pad = 0;
+
+#ifdef HAVE_CAVIUM
+ if (key->magic == CYASSL_RSA_CAVIUM_MAGIC)
+ return CaviumRsaPrivateDecrypt(in, inLen, out, outLen, key);
+#endif
+
+ tmp = (byte*)XMALLOC(inLen, key->heap, DYNAMIC_TYPE_RSA);
+ if (tmp == NULL) {
+ return MEMORY_E;
+ }
+
+ XMEMCPY(tmp, in, inLen);
+
+ if ((ret = plainLen = RsaPrivateDecryptInline(tmp, inLen, &pad, key))
+ < 0) {
+ XFREE(tmp, key->heap, DYNAMIC_TYPE_RSA);
+ return ret;
+ }
+ if (plainLen > (int)outLen)
+ plainLen = BAD_FUNC_ARG;
+ else
+ XMEMCPY(out, pad, plainLen);
+ XMEMSET(tmp, 0x00, inLen);
+
+ XFREE(tmp, key->heap, DYNAMIC_TYPE_RSA);
+ return plainLen;
+}
+
+
+/* for Rsa Verify */
+int RsaSSL_VerifyInline(byte* in, word32 inLen, byte** out, RsaKey* key)
+{
+ int plainLen, ret;
+
+#ifdef HAVE_CAVIUM
+ if (key->magic == CYASSL_RSA_CAVIUM_MAGIC) {
+ ret = CaviumRsaSSL_Verify(in, inLen, in, inLen, key);
+ if (ret > 0)
+ *out = in;
+ return ret;
+ }
+#endif
+
+ if ((ret = RsaFunction(in, inLen, in, &inLen, RSA_PUBLIC_DECRYPT, key))
+ < 0) {
+ return ret;
+ }
+
+ plainLen = RsaUnPad(in, inLen, out, RSA_BLOCK_TYPE_1);
+
+ return plainLen;
+}
+
+
+int RsaSSL_Verify(const byte* in, word32 inLen, byte* out, word32 outLen,
+ RsaKey* key)
+{
+ int plainLen, ret;
+ byte* tmp;
+ byte* pad = 0;
+
+#ifdef HAVE_CAVIUM
+ if (key->magic == CYASSL_RSA_CAVIUM_MAGIC)
+ return CaviumRsaSSL_Verify(in, inLen, out, outLen, key);
+#endif
+
+ tmp = (byte*)XMALLOC(inLen, key->heap, DYNAMIC_TYPE_RSA);
+ if (tmp == NULL) {
+ return MEMORY_E;
+ }
+
+ XMEMCPY(tmp, in, inLen);
+
+ if ((ret = plainLen = RsaSSL_VerifyInline(tmp, inLen, &pad, key))
+ < 0) {
+ XFREE(tmp, key->heap, DYNAMIC_TYPE_RSA);
+ return ret;
+ }
+
+ if (plainLen > (int)outLen)
+ plainLen = BAD_FUNC_ARG;
+ else
+ XMEMCPY(out, pad, plainLen);
+ XMEMSET(tmp, 0x00, inLen);
+
+ XFREE(tmp, key->heap, DYNAMIC_TYPE_RSA);
+ return plainLen;
+}
+
+
+/* for Rsa Sign */
+int RsaSSL_Sign(const byte* in, word32 inLen, byte* out, word32 outLen,
+ RsaKey* key, RNG* rng)
+{
+ int sz, ret;
+
+#ifdef HAVE_CAVIUM
+ if (key->magic == CYASSL_RSA_CAVIUM_MAGIC)
+ return CaviumRsaSSL_Sign(in, inLen, out, outLen, key);
+#endif
+
+ sz = mp_unsigned_bin_size(&key->n);
+ if (sz > (int)outLen)
+ return RSA_BUFFER_E;
+
+ if (inLen > (word32)(sz - RSA_MIN_PAD_SZ))
+ return RSA_BUFFER_E;
+
+ RsaPad(in, inLen, out, sz, RSA_BLOCK_TYPE_1, rng);
+
+ if ((ret = RsaFunction(out, sz, out, &outLen, RSA_PRIVATE_ENCRYPT,key)) < 0)
+ sz = ret;
+
+ return sz;
+}
+
+
+int RsaEncryptSize(RsaKey* key)
+{
+#ifdef HAVE_CAVIUM
+ if (key->magic == CYASSL_RSA_CAVIUM_MAGIC)
+ return key->c_nSz;
+#endif
+ return mp_unsigned_bin_size(&key->n);
+}
+
+
+#ifdef CYASSL_KEY_GEN
+
+static const int USE_BBS = 1;
+
+static int rand_prime(mp_int* N, int len, RNG* rng, void* heap)
+{
+ int err, res, type;
+ byte* buf;
+
+ (void)heap;
+ if (N == NULL || rng == NULL)
+ return BAD_FUNC_ARG;
+
+ /* get type */
+ if (len < 0) {
+ type = USE_BBS;
+ len = -len;
+ } else {
+ type = 0;
+ }
+
+ /* allow sizes between 2 and 512 bytes for a prime size */
+ if (len < 2 || len > 512) {
+ return BAD_FUNC_ARG;
+ }
+
+ /* allocate buffer to work with */
+ buf = (byte*)XMALLOC(len, heap, DYNAMIC_TYPE_RSA);
+ if (buf == NULL) {
+ return MEMORY_E;
+ }
+ XMEMSET(buf, 0, len);
+
+ do {
+#ifdef SHOW_GEN
+ printf(".");
+ fflush(stdout);
+#endif
+ /* generate value */
+ RNG_GenerateBlock(rng, buf, len);
+
+ /* munge bits */
+ buf[0] |= 0x80 | 0x40;
+ buf[len-1] |= 0x01 | ((type & USE_BBS) ? 0x02 : 0x00);
+
+ /* load value */
+ if ((err = mp_read_unsigned_bin(N, buf, len)) != MP_OKAY) {
+ XFREE(buf, heap, DYNAMIC_TYPE_RSA);
+ return err;
+ }
+
+ /* test */
+ if ((err = mp_prime_is_prime(N, 8, &res)) != MP_OKAY) {
+ XFREE(buf, heap, DYNAMIC_TYPE_RSA);
+ return err;
+ }
+ } while (res == MP_NO);
+
+#ifdef LTC_CLEAN_STACK
+ XMEMSET(buf, 0, len);
+#endif
+
+ XFREE(buf, heap, DYNAMIC_TYPE_RSA);
+ return 0;
+}
+
+
+/* Make an RSA key for size bits, with e specified, 65537 is a good e */
+int MakeRsaKey(RsaKey* key, int size, long e, RNG* rng)
+{
+ mp_int p, q, tmp1, tmp2, tmp3;
+ int err;
+
+ if (key == NULL || rng == NULL)
+ return BAD_FUNC_ARG;
+
+ if (size < RSA_MIN_SIZE || size > RSA_MAX_SIZE)
+ return BAD_FUNC_ARG;
+
+ if (e < 3 || (e & 1) == 0)
+ return BAD_FUNC_ARG;
+
+ if ((err = mp_init_multi(&p, &q, &tmp1, &tmp2, &tmp3, NULL)) != MP_OKAY)
+ return err;
+
+ err = mp_set_int(&tmp3, e);
+
+ /* make p */
+ if (err == MP_OKAY) {
+ do {
+ err = rand_prime(&p, size/16, rng, key->heap); /* size in bytes/2 */
+
+ if (err == MP_OKAY)
+ err = mp_sub_d(&p, 1, &tmp1); /* tmp1 = p-1 */
+
+ if (err == MP_OKAY)
+ err = mp_gcd(&tmp1, &tmp3, &tmp2); /* tmp2 = gcd(p-1, e) */
+ } while (err == MP_OKAY && mp_cmp_d(&tmp2, 1) != 0); /* e divdes p-1 */
+ }
+
+ /* make q */
+ if (err == MP_OKAY) {
+ do {
+ err = rand_prime(&q, size/16, rng, key->heap); /* size in bytes/2 */
+
+ if (err == MP_OKAY)
+ err = mp_sub_d(&q, 1, &tmp1); /* tmp1 = q-1 */
+
+ if (err == MP_OKAY)
+ err = mp_gcd(&tmp1, &tmp3, &tmp2); /* tmp2 = gcd(q-1, e) */
+ } while (err == MP_OKAY && mp_cmp_d(&tmp2, 1) != 0); /* e divdes q-1 */
+ }
+
+ if (err == MP_OKAY)
+ err = mp_init_multi(&key->n, &key->e, &key->d, &key->p, &key->q, NULL);
+
+ if (err == MP_OKAY)
+ err = mp_init_multi(&key->dP, &key->dQ, &key->u, NULL, NULL, NULL);
+
+ if (err == MP_OKAY)
+ err = mp_sub_d(&p, 1, &tmp2); /* tmp2 = p-1 */
+
+ if (err == MP_OKAY)
+ err = mp_lcm(&tmp1, &tmp2, &tmp1); /* tmp1 = lcm(p-1, q-1),last loop */
+
+ /* make key */
+ if (err == MP_OKAY)
+ err = mp_set_int(&key->e, e); /* key->e = e */
+
+ if (err == MP_OKAY) /* key->d = 1/e mod lcm(p-1, q-1) */
+ err = mp_invmod(&key->e, &tmp1, &key->d);
+
+ if (err == MP_OKAY)
+ err = mp_mul(&p, &q, &key->n); /* key->n = pq */
+
+ if (err == MP_OKAY)
+ err = mp_sub_d(&p, 1, &tmp1);
+
+ if (err == MP_OKAY)
+ err = mp_sub_d(&q, 1, &tmp2);
+
+ if (err == MP_OKAY)
+ err = mp_mod(&key->d, &tmp1, &key->dP);
+
+ if (err == MP_OKAY)
+ err = mp_mod(&key->d, &tmp2, &key->dQ);
+
+ if (err == MP_OKAY)
+ err = mp_invmod(&q, &p, &key->u);
+
+ if (err == MP_OKAY)
+ err = mp_copy(&p, &key->p);
+
+ if (err == MP_OKAY)
+ err = mp_copy(&q, &key->q);
+
+ if (err == MP_OKAY)
+ key->type = RSA_PRIVATE;
+
+ mp_clear(&tmp3);
+ mp_clear(&tmp2);
+ mp_clear(&tmp1);
+ mp_clear(&q);
+ mp_clear(&p);
+
+ if (err != MP_OKAY) {
+ FreeRsaKey(key);
+ return err;
+ }
+
+ return 0;
+}
+
+
+#endif /* CYASSL_KEY_GEN */
+
+
+#ifdef HAVE_CAVIUM
+
+#include <cyassl/ctaocrypt/logging.h>
+#include "cavium_common.h"
+
+/* Initiliaze RSA for use with Nitrox device */
+int RsaInitCavium(RsaKey* rsa, int devId)
+{
+ if (rsa == NULL)
+ return -1;
+
+ if (CspAllocContext(CONTEXT_SSL, &rsa->contextHandle, devId) != 0)
+ return -1;
+
+ rsa->devId = devId;
+ rsa->magic = CYASSL_RSA_CAVIUM_MAGIC;
+
+ return 0;
+}
+
+
+/* Free RSA from use with Nitrox device */
+void RsaFreeCavium(RsaKey* rsa)
+{
+ if (rsa == NULL)
+ return;
+
+ CspFreeContext(CONTEXT_SSL, rsa->contextHandle, rsa->devId);
+ rsa->magic = 0;
+}
+
+
+/* Initialize cavium RSA key */
+static void InitCaviumRsaKey(RsaKey* key, void* heap)
+{
+ if (key == NULL)
+ return;
+
+ key->heap = heap;
+ key->type = -1; /* don't know yet */
+
+ key->c_n = NULL;
+ key->c_e = NULL;
+ key->c_d = NULL;
+ key->c_p = NULL;
+ key->c_q = NULL;
+ key->c_dP = NULL;
+ key->c_dQ = NULL;
+ key->c_u = NULL;
+
+ key->c_nSz = 0;
+ key->c_eSz = 0;
+ key->c_dSz = 0;
+ key->c_pSz = 0;
+ key->c_qSz = 0;
+ key->c_dP_Sz = 0;
+ key->c_dQ_Sz = 0;
+ key->c_uSz = 0;
+}
+
+
+/* Free cavium RSA key */
+static void FreeCaviumRsaKey(RsaKey* key)
+{
+ if (key == NULL)
+ return;
+
+ XFREE(key->c_n, key->heap, DYNAMIC_TYPE_CAVIUM_TMP);
+ XFREE(key->c_e, key->heap, DYNAMIC_TYPE_CAVIUM_TMP);
+ XFREE(key->c_d, key->heap, DYNAMIC_TYPE_CAVIUM_TMP);
+ XFREE(key->c_p, key->heap, DYNAMIC_TYPE_CAVIUM_TMP);
+ XFREE(key->c_q, key->heap, DYNAMIC_TYPE_CAVIUM_TMP);
+ XFREE(key->c_dP, key->heap, DYNAMIC_TYPE_CAVIUM_TMP);
+ XFREE(key->c_dQ, key->heap, DYNAMIC_TYPE_CAVIUM_TMP);
+ XFREE(key->c_u, key->heap, DYNAMIC_TYPE_CAVIUM_TMP);
+
+ InitCaviumRsaKey(key, key->heap); /* reset pointers */
+}
+
+
+static int CaviumRsaPublicEncrypt(const byte* in, word32 inLen, byte* out,
+ word32 outLen, RsaKey* key)
+{
+ word32 requestId;
+ word32 ret;
+
+ if (key == NULL || in == NULL || out == NULL || outLen < (word32)key->c_nSz)
+ return -1;
+
+ ret = CspPkcs1v15Enc(CAVIUM_BLOCKING, BT2, key->c_nSz, key->c_eSz,
+ (word16)inLen, key->c_n, key->c_e, (byte*)in, out,
+ &requestId, key->devId);
+ if (ret != 0) {
+ CYASSL_MSG("Cavium Enc BT2 failed");
+ return -1;
+ }
+ return key->c_nSz;
+}
+
+
+static INLINE void ato16(const byte* c, word16* u16)
+{
+ *u16 = (c[0] << 8) | (c[1]);
+}
+
+
+static int CaviumRsaPrivateDecrypt(const byte* in, word32 inLen, byte* out,
+ word32 outLen, RsaKey* key)
+{
+ word32 requestId;
+ word32 ret;
+ word16 outSz = (word16)outLen;
+
+ if (key == NULL || in == NULL || out == NULL || inLen != (word32)key->c_nSz)
+ return -1;
+
+ ret = CspPkcs1v15CrtDec(CAVIUM_BLOCKING, BT2, key->c_nSz, key->c_q,
+ key->c_dQ, key->c_p, key->c_dP, key->c_u,
+ (byte*)in, &outSz, out, &requestId, key->devId);
+ if (ret != 0) {
+ CYASSL_MSG("Cavium CRT Dec BT2 failed");
+ return -1;
+ }
+ ato16((const byte*)&outSz, &outSz);
+
+ return outSz;
+}
+
+
+static int CaviumRsaSSL_Sign(const byte* in, word32 inLen, byte* out,
+ word32 outLen, RsaKey* key)
+{
+ word32 requestId;
+ word32 ret;
+
+ if (key == NULL || in == NULL || out == NULL || inLen == 0 || outLen <
+ (word32)key->c_nSz)
+ return -1;
+
+ ret = CspPkcs1v15CrtEnc(CAVIUM_BLOCKING, BT1, key->c_nSz, (word16)inLen,
+ key->c_q, key->c_dQ, key->c_p, key->c_dP, key->c_u,
+ (byte*)in, out, &requestId, key->devId);
+ if (ret != 0) {
+ CYASSL_MSG("Cavium CRT Enc BT1 failed");
+ return -1;
+ }
+ return key->c_nSz;
+}
+
+
+static int CaviumRsaSSL_Verify(const byte* in, word32 inLen, byte* out,
+ word32 outLen, RsaKey* key)
+{
+ word32 requestId;
+ word32 ret;
+ word16 outSz = (word16)outLen;
+
+ if (key == NULL || in == NULL || out == NULL || inLen != (word32)key->c_nSz)
+ return -1;
+
+ ret = CspPkcs1v15Dec(CAVIUM_BLOCKING, BT1, key->c_nSz, key->c_eSz,
+ key->c_n, key->c_e, (byte*)in, &outSz, out,
+ &requestId, key->devId);
+ if (ret != 0) {
+ CYASSL_MSG("Cavium Dec BT1 failed");
+ return -1;
+ }
+ outSz = ntohs(outSz);
+
+ return outSz;
+}
+
+
+#endif /* HAVE_CAVIUM */
+
+#endif /* NO_RSA */
