1 files changed, 294 insertions, 0 deletions

diff --git a/src/lib/libcrypto/rsa/rsa_lib.c b/src/lib/libcrypto/rsa/rsa_lib.c
new file mode 100644
index 0000000000..95a56f8a28
--- /dev/null
+++ b/src/lib/libcrypto/rsa/rsa_lib.c
@@ -0,0 +1,294 @@
+/* crypto/rsa/rsa_lib.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * 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 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 acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS 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 AUTHOR OR 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.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include "crypto.h"
+#include "cryptlib.h"
+#include "lhash.h"
+#include "bn.h"
+#include "rsa.h"
+
+char *RSA_version="RSA part of SSLeay 0.9.0b 29-Jun-1998";
+
+static RSA_METHOD *default_RSA_meth=NULL;
+static int rsa_meth_num=0;
+static STACK *rsa_meth=NULL;
+
+RSA *RSA_new()
+        {
+        return(RSA_new_method(NULL));
+        }
+
+void RSA_set_default_method(meth)
+RSA_METHOD *meth;
+        {
+        default_RSA_meth=meth;
+        }
+
+RSA *RSA_new_method(meth)
+RSA_METHOD *meth;
+        {
+        RSA *ret;
+
+        if (default_RSA_meth == NULL)
+                {
+#ifdef RSAref
+                default_RSA_meth=RSA_PKCS1_RSAref();
+#else
+                default_RSA_meth=RSA_PKCS1_SSLeay();
+#endif
+                }
+        ret=(RSA *)Malloc(sizeof(RSA));
+        if (ret == NULL)
+                {
+                RSAerr(RSA_F_RSA_NEW_METHOD,ERR_R_MALLOC_FAILURE);
+                return(NULL);
+                }
+
+        if (meth == NULL)
+                ret->meth=default_RSA_meth;
+        else
+                ret->meth=meth;
+
+        ret->pad=0;
+        ret->version=0;
+        ret->n=NULL;
+        ret->e=NULL;
+        ret->d=NULL;
+        ret->p=NULL;
+        ret->q=NULL;
+        ret->dmp1=NULL;
+        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->blinding=NULL;
+        ret->flags=ret->meth->flags;
+        if ((ret->meth->init != NULL) && !ret->meth->init(ret))
+                {
+                Free(ret);
+                ret=NULL;
+                }
+        CRYPTO_new_ex_data(rsa_meth,(char *)ret,&ret->ex_data);
+        return(ret);
+        }
+
+void RSA_free(r)
+RSA *r;
+        {
+        int i;
+
+        if (r == NULL) return;
+
+        i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_RSA);
+#ifdef REF_PRINT
+        REF_PRINT("RSA",r);
+#endif
+        if (i > 0) return;
+#ifdef REF_CHECK
+        if (i < 0)
+                {
+                fprintf(stderr,"RSA_free, bad reference count\n");
+                abort();
+                }
+#endif
+
+        CRYPTO_free_ex_data(rsa_meth,(char *)r,&r->ex_data);
+
+        if (r->meth->finish != NULL)
+                r->meth->finish(r);
+
+        if (r->n != NULL) BN_clear_free(r->n);
+        if (r->e != NULL) BN_clear_free(r->e);
+        if (r->d != NULL) BN_clear_free(r->d);
+        if (r->p != NULL) BN_clear_free(r->p);
+        if (r->q != NULL) BN_clear_free(r->q);
+        if (r->dmp1 != NULL) BN_clear_free(r->dmp1);
+        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);
+        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)();
+        {
+        rsa_meth_num++;
+        return(CRYPTO_get_ex_new_index(rsa_meth_num-1,
+                &rsa_meth,argl,argp,new_func,dup_func,free_func));
+        }
+
+int RSA_set_ex_data(r,idx,arg)
+RSA *r;
+int idx;
+char *arg;
+        {
+        return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
+        }
+
+char *RSA_get_ex_data(r,idx)
+RSA *r;
+int idx;
+        {
+        return(CRYPTO_get_ex_data(&r->ex_data,idx));
+        }
+
+int RSA_size(r)
+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;
+        {
+        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;
+        {
+        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;
+        {
+        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;
+        {
+        return(rsa->meth->rsa_pub_dec(flen, from, to, rsa, padding));
+        }
+
+int RSA_flags(r)
+RSA *r;
+        {
+        return((r == NULL)?0:r->meth->flags);
+        }
+
+void RSA_blinding_off(rsa)
+RSA *rsa;
+        {
+        if (rsa->blinding != NULL)
+                {
+                BN_BLINDING_free(rsa->blinding);
+                rsa->blinding=NULL;
+                }
+        rsa->flags&= ~RSA_FLAG_BLINDING;
+        }
+
+int RSA_blinding_on(rsa,p_ctx)
+RSA *rsa;
+BN_CTX *p_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);
+
+        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(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);
+        ret=1;
+err:
+        if (ctx != p_ctx) BN_CTX_free(ctx);
+        return(ret);
+        }
+