/* crypto/asn1/i2d_r_pu.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.] */ #ifndef NO_RSA #include #include "cryptlib.h" #include #include #include #include int i2d_RSAPublicKey(RSA *a, unsigned char **pp) { BIGNUM *num[2]; ASN1_INTEGER bs; unsigned int j,i,tot=0,len,max=0,t; unsigned char *p; if (a == NULL) return(0); num[0]=a->n; num[1]=a->e; for (i=0; i<2; i++) { j=BN_num_bits(num[i]); len=((j == 0)?0:((j/8)+1)); if (len > max) max=len; len=ASN1_object_size(0,len, (num[i]->neg)?V_ASN1_NEG_INTEGER:V_ASN1_INTEGER); tot+=len; } t=ASN1_object_size(1,tot,V_ASN1_SEQUENCE); if (pp == NULL) return(t); p= *pp; ASN1_put_object(&p,1,tot,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL); bs.type=V_ASN1_INTEGER; bs.data=(unsigned char *)Malloc(max+4); if (bs.data == NULL) { ASN1err(ASN1_F_I2D_RSAPUBLICKEY,ERR_R_MALLOC_FAILURE); return(-1); } for (i=0; i<2; i++) { bs.length=BN_bn2bin(num[i],bs.data); i2d_ASN1_INTEGER(&bs,&p); } Free((char *)bs.data); *pp=p; return(t); } #else /* !NO_RSA */ # if PEDANTIC static void *dummy=&dummy; # endif #endif