diff options
author | Dr. Stephen Henson <steve@openssl.org> | 2006-03-22 14:34:19 +0100 |
---|---|---|
committer | Dr. Stephen Henson <steve@openssl.org> | 2006-03-22 14:34:19 +0100 |
commit | 1b593194bed99926068d03d46d16d0659b6eba58 (patch) | |
tree | 550167347937f8eaa13d46167726b427250b63df /crypto/dh/dh_prn.c | |
parent | Gather printing routines into EVP_PKEY_ASN1_METHOD. (diff) | |
download | openssl-1b593194bed99926068d03d46d16d0659b6eba58.tar.xz openssl-1b593194bed99926068d03d46d16d0659b6eba58.zip |
Move algorithm specific print code from crypto/asn1/t_pkey.c to separate
*_prn.c files in each algorithm directory.
Diffstat (limited to 'crypto/dh/dh_prn.c')
-rw-r--r-- | crypto/dh/dh_prn.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/crypto/dh/dh_prn.c b/crypto/dh/dh_prn.c new file mode 100644 index 0000000000..04e7c55b7a --- /dev/null +++ b/crypto/dh/dh_prn.c @@ -0,0 +1,124 @@ +/* crypto/asn1/t_pkey.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 "cryptlib.h" +#include <openssl/evp.h> +#include <openssl/dh.h> + +#ifndef OPENSSL_NO_FP_API +int DHparams_print_fp(FILE *fp, const DH *x) + { + BIO *b; + int ret; + + if ((b=BIO_new(BIO_s_file())) == NULL) + { + DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB); + return(0); + } + BIO_set_fp(b,fp,BIO_NOCLOSE); + ret=DHparams_print(b, x); + BIO_free(b); + return(ret); + } +#endif + +int DHparams_print(BIO *bp, const DH *x) + { + unsigned char *m=NULL; + int reason=ERR_R_BUF_LIB,ret=0; + size_t buf_len=0, i; + + if (x->p) + buf_len = (size_t)BN_num_bytes(x->p); + else + { + reason = ERR_R_PASSED_NULL_PARAMETER; + goto err; + } + if (x->g) + if (buf_len < (i = (size_t)BN_num_bytes(x->g))) + buf_len = i; + m=(unsigned char *)OPENSSL_malloc(buf_len+10); + if (m == NULL) + { + reason=ERR_R_MALLOC_FAILURE; + goto err; + } + + if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n", + BN_num_bits(x->p)) <= 0) + goto err; + if (!ASN1_bn_print(bp,"prime:",x->p,m,4)) goto err; + if (!ASN1_bn_print(bp,"generator:",x->g,m,4)) goto err; + if (x->length != 0) + { + if (BIO_printf(bp," recommended-private-length: %d bits\n", + (int)x->length) <= 0) goto err; + } + ret=1; + if (0) + { +err: + DHerr(DH_F_DHPARAMS_PRINT,reason); + } + if (m != NULL) OPENSSL_free(m); + return(ret); + } + |