#include <stdio.h>
#include "cryptlib.h"
-#include "bn.h"
-#include "rsa.h"
-#include "rand.h"
+#include <openssl/bn.h>
+#include <openssl/rsa.h>
+#include <openssl/rand.h>
+
+#ifndef RSA_NULL
-#ifndef NOPROTO
static int RSA_eay_public_encrypt(int flen, unsigned char *from,
unsigned char *to, RSA *rsa,int padding);
static int RSA_eay_private_encrypt(int flen, unsigned char *from,
static int RSA_eay_mod_exp(BIGNUM *r0, BIGNUM *i, RSA *rsa);
static int RSA_eay_init(RSA *rsa);
static int RSA_eay_finish(RSA *rsa);
-#else
-static int RSA_eay_public_encrypt();
-static int RSA_eay_private_encrypt();
-static int RSA_eay_public_decrypt();
-static int RSA_eay_private_decrypt();
-static int RSA_eay_mod_exp();
-static int RSA_eay_init();
-static int RSA_eay_finish();
-#endif
-
static RSA_METHOD rsa_pkcs1_eay_meth={
"Eric Young's PKCS#1 RSA",
RSA_eay_public_encrypt,
NULL,
};
-RSA_METHOD *RSA_PKCS1_SSLeay()
+RSA_METHOD *RSA_PKCS1_SSLeay(void)
{
return(&rsa_pkcs1_eay_meth);
}
-static int RSA_eay_public_encrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+static int RSA_eay_public_encrypt(int flen, unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding)
{
BIGNUM f,ret;
int i,j,k,num=0,r= -1;
case RSA_PKCS1_PADDING:
i=RSA_padding_add_PKCS1_type_2(buf,num,from,flen);
break;
+#ifndef NO_SHA
+ case RSA_PKCS1_OAEP_PADDING:
+ i=RSA_padding_add_PKCS1_OAEP(buf,num,from,flen,NULL,0);
+ break;
+#endif
case RSA_SSLV23_PADDING:
i=RSA_padding_add_SSLv23(buf,num,from,flen);
break;
return(r);
}
-static int RSA_eay_private_encrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+static int RSA_eay_private_encrypt(int flen, unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding)
{
BIGNUM f,ret;
int i,j,k,num=0,r= -1;
if (rsa->flags & RSA_FLAG_BLINDING)
if (!BN_BLINDING_convert(&f,rsa->blinding,ctx)) goto err;
- if ( (rsa->p != NULL) &&
+ if ( (rsa->flags & RSA_FLAG_EXT_PKEY) ||
+ ((rsa->p != NULL) &&
(rsa->q != NULL) &&
(rsa->dmp1 != NULL) &&
(rsa->dmq1 != NULL) &&
- (rsa->iqmp != NULL))
+ (rsa->iqmp != NULL)) )
{ if (!rsa->meth->rsa_mod_exp(&ret,&f,rsa)) goto err; }
else
{
return(r);
}
-static int RSA_eay_private_decrypt(flen, from, to, rsa,padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+static int RSA_eay_private_decrypt(int flen, unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding)
{
BIGNUM f,ret;
int j,num=0,r= -1;
goto err;
}
- /* This check was for equallity but PGP does evil things
+ /* This check was for equality but PGP does evil things
* and chops off the top '0' bytes */
if (flen > num)
{
if (!BN_BLINDING_convert(&f,rsa->blinding,ctx)) goto err;
/* do the decrypt */
- if ( (rsa->p != NULL) &&
+ if ( (rsa->flags & RSA_FLAG_EXT_PKEY) ||
+ ((rsa->p != NULL) &&
(rsa->q != NULL) &&
(rsa->dmp1 != NULL) &&
(rsa->dmq1 != NULL) &&
- (rsa->iqmp != NULL))
+ (rsa->iqmp != NULL)) )
{ if (!rsa->meth->rsa_mod_exp(&ret,&f,rsa)) goto err; }
else
{
case RSA_PKCS1_PADDING:
r=RSA_padding_check_PKCS1_type_2(to,num,buf,j,num);
break;
- case RSA_SSLV23_PADDING:
+#ifndef NO_SHA
+ case RSA_PKCS1_OAEP_PADDING:
+ r=RSA_padding_check_PKCS1_OAEP(to,num,buf,j,num,NULL,0);
+ break;
+#endif
+ case RSA_SSLV23_PADDING:
r=RSA_padding_check_SSLv23(to,num,buf,j,num);
break;
case RSA_NO_PADDING:
return(r);
}
-static int RSA_eay_public_decrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+static int RSA_eay_public_decrypt(int flen, unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding)
{
BIGNUM f,ret;
int i,num=0,r= -1;
goto err;
}
- /* This check was for equallity but PGP does evil things
+ /* This check was for equality but PGP does evil things
* and chops off the top '0' bytes */
if (flen > num)
{
return(r);
}
-static int RSA_eay_mod_exp(r0, I, rsa)
-BIGNUM *r0;
-BIGNUM *I;
-RSA *rsa;
+static int RSA_eay_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa)
{
BIGNUM r1,m1;
int ret=0;
if (!BN_mul(&r1,r0,rsa->iqmp,ctx)) goto err;
if (!BN_mod(r0,&r1,rsa->p,ctx)) goto err;
+ /* If p < q it is occasionally possible for the correction of
+ * adding 'p' if r0 is negative above to leave the result still
+ * negative. This can break the private key operations: the following
+ * second correction should *always* correct this rare occurrence.
+ * This will *never* happen with OpenSSL generated keys because
+ * they ensure p > q [steve]
+ */
+ if (r0->neg)
+ if (!BN_add(r0,r0,rsa->p)) goto err;
if (!BN_mul(&r1,r0,rsa->q,ctx)) goto err;
if (!BN_add(r0,&r1,&m1)) goto err;
err:
BN_clear_free(&m1);
BN_clear_free(&r1);
- if(ctx)
- BN_CTX_free(ctx);
+ BN_CTX_free(ctx);
return(ret);
}
-static int RSA_eay_init(rsa)
-RSA *rsa;
+static int RSA_eay_init(RSA *rsa)
{
rsa->flags|=RSA_FLAG_CACHE_PUBLIC|RSA_FLAG_CACHE_PRIVATE;
return(1);
}
-static int RSA_eay_finish(rsa)
-RSA *rsa;
+static int RSA_eay_finish(RSA *rsa)
{
if (rsa->_method_mod_n != NULL)
BN_MONT_CTX_free(rsa->_method_mod_n);
return(1);
}
-
+#endif