diff options
Diffstat (limited to 'crypto/rsa/rsa_lib.c')
| -rw-r--r-- | crypto/rsa/rsa_lib.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/crypto/rsa/rsa_lib.c b/crypto/rsa/rsa_lib.c new file mode 100644 index 0000000000..c49d0ee0c3 --- /dev/null +++ b/crypto/rsa/rsa_lib.c @@ -0,0 +1,200 @@ +/* crypto/rsa/rsa_lib.c */ +/* Copyright (C) 1995-1997 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 "cryptlib.h" +#include "bn.h" +#include "rsa.h" + +char *RSA_version="RSA part of SSLeay 0.8.1b 29-Jun-1998"; + +static RSA_METHOD *default_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->app_data=NULL; + if ((ret->meth->init != NULL) && !ret->meth->init(ret)) + { + Free(ret); + ret=NULL; + } + return(ret); + } + +void RSA_free(r) +RSA *r; + { + int i; + + if (r == NULL) return; + + i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_RSA); + if (i > 0) return; +#ifdef REF_CHECK + if (i < 0) + { + fprintf(stderr,"RSA_free, bad reference count\n"); + abort(); + } +#endif + + 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); + Free(r); + } + +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)); + } + |