*/
#include <stdio.h>
-#include "crypto.h"
+#include <openssl/crypto.h>
#include "cryptlib.h"
-#include "lhash.h"
-#include "bn.h"
-#include "rsa.h"
+#include <openssl/lhash.h>
+#include <openssl/bn.h>
+#include <openssl/rsa.h>
+#include <openssl/rand.h>
+#ifndef OPENSSL_NO_ENGINE
+#include <openssl/engine.h>
+#endif
-char *RSA_version="RSA part of SSLeay 0.9.1c 22-Dec-1998";
+const char RSA_version[]="RSA" OPENSSL_VERSION_PTEXT;
-static RSA_METHOD *default_RSA_meth=NULL;
-static int rsa_meth_num=0;
-static STACK *rsa_meth=NULL;
+static const RSA_METHOD *default_RSA_meth=NULL;
-RSA *RSA_new()
+RSA *RSA_new(void)
{
- return(RSA_new_method(NULL));
+ RSA *r=RSA_new_method(NULL);
+
+ return r;
}
-void RSA_set_default_method(meth)
-RSA_METHOD *meth;
+void RSA_set_default_method(const RSA_METHOD *meth)
{
- default_RSA_meth=meth;
+ default_RSA_meth = meth;
}
-RSA *RSA_new_method(meth)
-RSA_METHOD *meth;
+const RSA_METHOD *RSA_get_default_method(void)
{
- RSA *ret;
-
if (default_RSA_meth == NULL)
{
-#ifdef RSAref
+#ifdef RSA_NULL
+ default_RSA_meth=RSA_null_method();
+#else
+#if 0 /* was: #ifdef RSAref */
default_RSA_meth=RSA_PKCS1_RSAref();
#else
default_RSA_meth=RSA_PKCS1_SSLeay();
#endif
+#endif
+ }
+
+ return default_RSA_meth;
+ }
+
+const RSA_METHOD *RSA_get_method(const RSA *rsa)
+ {
+ return rsa->meth;
+ }
+
+int RSA_set_method(RSA *rsa, const RSA_METHOD *meth)
+ {
+ /* NB: The caller is specifically setting a method, so it's not up to us
+ * to deal with which ENGINE it comes from. */
+ const RSA_METHOD *mtmp;
+ mtmp = rsa->meth;
+ if (mtmp->finish) mtmp->finish(rsa);
+#ifndef OPENSSL_NO_ENGINE
+ if (rsa->engine)
+ {
+ ENGINE_finish(rsa->engine);
+ rsa->engine = NULL;
}
- ret=(RSA *)Malloc(sizeof(RSA));
+#endif
+ rsa->meth = meth;
+ if (meth->init) meth->init(rsa);
+ return 1;
+ }
+
+RSA *RSA_new_method(ENGINE *engine)
+ {
+ RSA *ret;
+
+ ret=(RSA *)OPENSSL_malloc(sizeof(RSA));
if (ret == NULL)
{
RSAerr(RSA_F_RSA_NEW_METHOD,ERR_R_MALLOC_FAILURE);
- return(NULL);
+ return NULL;
}
- if (meth == NULL)
- ret->meth=default_RSA_meth;
+ ret->meth = RSA_get_default_method();
+#ifndef OPENSSL_NO_ENGINE
+ if (engine)
+ {
+ if (!ENGINE_init(engine))
+ {
+ RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
+ OPENSSL_free(ret);
+ return NULL;
+ }
+ ret->engine = engine;
+ }
else
- ret->meth=meth;
+ ret->engine = ENGINE_get_default_RSA();
+ if(ret->engine)
+ {
+ ret->meth = ENGINE_get_RSA(ret->engine);
+ if(!ret->meth)
+ {
+ RSAerr(RSA_F_RSA_NEW_METHOD,
+ ERR_R_ENGINE_LIB);
+ ENGINE_finish(ret->engine);
+ OPENSSL_free(ret);
+ return NULL;
+ }
+ }
+#endif
ret->pad=0;
ret->version=0;
ret->dmq1=NULL;
ret->iqmp=NULL;
ret->references=1;
- ret->method_mod_n=NULL;
- ret->method_mod_p=NULL;
- ret->method_mod_q=NULL;
+ ret->_method_mod_n=NULL;
+ ret->_method_mod_p=NULL;
+ ret->_method_mod_q=NULL;
ret->blinding=NULL;
+ ret->mt_blinding=NULL;
ret->bignum_data=NULL;
ret->flags=ret->meth->flags;
+ CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data);
if ((ret->meth->init != NULL) && !ret->meth->init(ret))
{
- Free(ret);
+#ifndef OPENSSL_NO_ENGINE
+ if (ret->engine)
+ ENGINE_finish(ret->engine);
+#endif
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data);
+ OPENSSL_free(ret);
ret=NULL;
}
- else
- CRYPTO_new_ex_data(rsa_meth,(char *)ret,&ret->ex_data);
return(ret);
}
-void RSA_free(r)
-RSA *r;
+void RSA_free(RSA *r)
{
int i;
}
#endif
- CRYPTO_free_ex_data(rsa_meth,(char *)r,&r->ex_data);
-
- if (r->meth->finish != NULL)
+ if (r->meth->finish)
r->meth->finish(r);
+#ifndef OPENSSL_NO_ENGINE
+ if (r->engine)
+ ENGINE_finish(r->engine);
+#endif
+
+ CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data);
if (r->n != NULL) BN_clear_free(r->n);
if (r->e != NULL) BN_clear_free(r->e);
if (r->dmq1 != NULL) BN_clear_free(r->dmq1);
if (r->iqmp != NULL) BN_clear_free(r->iqmp);
if (r->blinding != NULL) BN_BLINDING_free(r->blinding);
- if (r->bignum_data != NULL) Free_locked(r->bignum_data);
- Free(r);
+ if (r->mt_blinding != NULL) BN_BLINDING_free(r->mt_blinding);
+ if (r->bignum_data != NULL) OPENSSL_free_locked(r->bignum_data);
+ OPENSSL_free(r);
}
-int RSA_get_ex_new_index(argl,argp,new_func,dup_func,free_func)
-long argl;
-char *argp;
-int (*new_func)();
-int (*dup_func)();
-void (*free_func)();
+int RSA_up_ref(RSA *r)
+ {
+ int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_RSA);
+#ifdef REF_PRINT
+ REF_PRINT("RSA",r);
+#endif
+#ifdef REF_CHECK
+ if (i < 2)
+ {
+ fprintf(stderr, "RSA_up_ref, bad reference count\n");
+ abort();
+ }
+#endif
+ return ((i > 1) ? 1 : 0);
+ }
+
+int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+ CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
{
- rsa_meth_num++;
- return(CRYPTO_get_ex_new_index(rsa_meth_num-1,
- &rsa_meth,argl,argp,new_func,dup_func,free_func));
+ return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, argl, argp,
+ new_func, dup_func, free_func);
}
-int RSA_set_ex_data(r,idx,arg)
-RSA *r;
-int idx;
-char *arg;
+int RSA_set_ex_data(RSA *r, int idx, void *arg)
{
return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
}
-char *RSA_get_ex_data(r,idx)
-RSA *r;
-int idx;
+void *RSA_get_ex_data(const RSA *r, int idx)
{
return(CRYPTO_get_ex_data(&r->ex_data,idx));
}
-int RSA_size(r)
-RSA *r;
+int RSA_size(const RSA *r)
{
return(BN_num_bytes(r->n));
}
-int RSA_public_encrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+int RSA_public_encrypt(int flen, const unsigned char *from, unsigned char *to,
+ RSA *rsa, int padding)
{
return(rsa->meth->rsa_pub_enc(flen, from, to, rsa, padding));
}
-int RSA_private_encrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+int RSA_private_encrypt(int flen, const unsigned char *from, unsigned char *to,
+ RSA *rsa, int padding)
{
return(rsa->meth->rsa_priv_enc(flen, from, to, rsa, padding));
}
-int RSA_private_decrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+int RSA_private_decrypt(int flen, const unsigned char *from, unsigned char *to,
+ RSA *rsa, int padding)
{
return(rsa->meth->rsa_priv_dec(flen, from, to, rsa, padding));
}
-int RSA_public_decrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+int RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to,
+ RSA *rsa, int padding)
{
return(rsa->meth->rsa_pub_dec(flen, from, to, rsa, padding));
}
-int RSA_flags(r)
-RSA *r;
+int RSA_flags(const RSA *r)
{
return((r == NULL)?0:r->meth->flags);
}
-void RSA_blinding_off(rsa)
-RSA *rsa;
+void RSA_blinding_off(RSA *rsa)
{
if (rsa->blinding != NULL)
{
BN_BLINDING_free(rsa->blinding);
rsa->blinding=NULL;
}
- rsa->flags&= ~RSA_FLAG_BLINDING;
+ rsa->flags &= ~RSA_FLAG_BLINDING;
+ rsa->flags |= RSA_FLAG_NO_BLINDING;
}
-int RSA_blinding_on(rsa,p_ctx)
-RSA *rsa;
-BN_CTX *p_ctx;
+int RSA_blinding_on(RSA *rsa, BN_CTX *ctx)
{
- BIGNUM *A,*Ai;
- BN_CTX *ctx;
int ret=0;
- if (p_ctx == NULL)
- {
- if ((ctx=BN_CTX_new()) == NULL) goto err;
- }
- else
- ctx=p_ctx;
-
if (rsa->blinding != NULL)
- BN_BLINDING_free(rsa->blinding);
+ RSA_blinding_off(rsa);
- A= &(ctx->bn[0]);
- ctx->tos++;
- if (!BN_rand(A,BN_num_bits(rsa->n)-1,1,0)) goto err;
- if ((Ai=BN_mod_inverse(NULL,A,rsa->n,ctx)) == NULL) goto err;
-
- if (!rsa->meth->bn_mod_exp(A,A,rsa->e,rsa->n,ctx,
- (char *)rsa->method_mod_n)) goto err;
- rsa->blinding=BN_BLINDING_new(A,Ai,rsa->n);
- ctx->tos--;
- rsa->flags|=RSA_FLAG_BLINDING;
- BN_free(Ai);
+ rsa->blinding = RSA_setup_blinding(rsa, ctx);
+ if (rsa->blinding == NULL)
+ goto err;
+
+ rsa->flags |= RSA_FLAG_BLINDING;
+ rsa->flags &= ~RSA_FLAG_NO_BLINDING;
ret=1;
err:
- if (ctx != p_ctx) BN_CTX_free(ctx);
return(ret);
}
-int RSA_memory_lock(r)
-RSA *r;
+static BIGNUM *rsa_get_public_exp(const BIGNUM *d, const BIGNUM *p,
+ const BIGNUM *q, BN_CTX *ctx)
+{
+ BIGNUM *ret = NULL, *r0, *r1, *r2;
+
+ if (d == NULL || p == NULL || q == NULL)
+ return NULL;
+
+ BN_CTX_start(ctx);
+ r0 = BN_CTX_get(ctx);
+ r1 = BN_CTX_get(ctx);
+ r2 = BN_CTX_get(ctx);
+ if (r2 == NULL)
+ goto err;
+
+ if (!BN_sub(r1, p, BN_value_one())) goto err;
+ if (!BN_sub(r2, q, BN_value_one())) goto err;
+ if (!BN_mul(r0, r1, r2, ctx)) goto err;
+
+ ret = BN_mod_inverse(NULL, d, r0, ctx);
+err:
+ BN_CTX_end(ctx);
+ return ret;
+}
+
+BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx)
+{
+ BIGNUM *e;
+ BN_CTX *ctx;
+ BN_BLINDING *ret = NULL;
+
+ if (in_ctx == NULL)
+ {
+ if ((ctx = BN_CTX_new()) == NULL) return 0;
+ }
+ else
+ ctx = in_ctx;
+
+ BN_CTX_start(ctx);
+ e = BN_CTX_get(ctx);
+ if (e == NULL)
+ {
+ RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (rsa->e == NULL)
+ {
+ e = rsa_get_public_exp(rsa->d, rsa->p, rsa->q, ctx);
+ if (e == NULL)
+ {
+ RSAerr(RSA_F_RSA_SETUP_BLINDING, RSA_R_NO_PUBLIC_EXPONENT);
+ goto err;
+ }
+ }
+ else
+ e = rsa->e;
+
+
+ if ((RAND_status() == 0) && rsa->d != NULL && rsa->d->d != NULL)
+ {
+ /* if PRNG is not properly seeded, resort to secret
+ * exponent as unpredictable seed */
+ RAND_add(rsa->d->d, rsa->d->dmax * sizeof rsa->d->d[0], 0.0);
+ }
+
+ ret = BN_BLINDING_create_param(NULL, e, rsa->n, ctx,
+ rsa->meth->bn_mod_exp, rsa->_method_mod_n);
+ if (ret == NULL)
+ {
+ RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_BN_LIB);
+ goto err;
+ }
+ BN_BLINDING_set_thread_id(ret, CRYPTO_thread_id());
+ BN_BLINDING_set_thread_idptr(ret, CRYPTO_thread_idptr());
+err:
+ BN_CTX_end(ctx);
+ if (in_ctx == NULL)
+ BN_CTX_free(ctx);
+
+ return ret;
+}
+
+int RSA_memory_lock(RSA *r)
{
int i,j,k,off;
char *p;
j=1;
for (i=0; i<6; i++)
j+= (*t[i])->top;
- if ((p=Malloc_locked((off+j)*sizeof(BN_ULONG))) == NULL)
+ if ((p=OPENSSL_malloc_locked((off+j)*sizeof(BN_ULONG))) == NULL)
{
- RSAerr(RSA_F_MEMORY_LOCK,ERR_R_MALLOC_FAILURE);
+ RSAerr(RSA_F_RSA_MEMORY_LOCK,ERR_R_MALLOC_FAILURE);
return(0);
}
bn=(BIGNUM *)p;
r->bignum_data=p;
return(1);
}
-
projects / openssl.git / blobdiff