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Diffstat (limited to 'crypto/evp/p_lib.c')
| -rw-r--r-- | crypto/evp/p_lib.c | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/crypto/evp/p_lib.c b/crypto/evp/p_lib.c new file mode 100644 index 0000000000..11369048e7 --- /dev/null +++ b/crypto/evp/p_lib.c @@ -0,0 +1,256 @@ +/* crypto/evp/p_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 "objects.h" +#include "evp.h" +#include "asn1_mac.h" +#include "x509.h" + +/* EVPerr(EVP_F_D2I_PKEY,EVP_R_UNSUPPORTED_CIPHER); */ +/* EVPerr(EVP_F_D2I_PKEY,EVP_R_IV_TOO_LARGE); */ + +#ifndef NOPROTO +static void EVP_PKEY_free_it(EVP_PKEY *x); +#else +static void EVP_PKEY_free_it(); +#endif + +int EVP_PKEY_size(pkey) +EVP_PKEY *pkey; + { +#ifndef NO_RSA + if (pkey->type == EVP_PKEY_RSA) + return(RSA_size(pkey->pkey.rsa)); + else +#endif +#ifndef NO_DSA + if (pkey->type == EVP_PKEY_DSA) + return(DSA_size(pkey->pkey.dsa)); +#endif + return(0); + } + +int EVP_PKEY_save_parameters(pkey,mode) +EVP_PKEY *pkey; +int mode; + { +#ifndef NO_DSA + if (pkey->type == EVP_PKEY_DSA) + { + int ret=pkey->save_parameters=mode; + + if (mode >= 0) + pkey->save_parameters=mode; + return(ret); + } +#endif + return(0); + } + +int EVP_PKEY_copy_parameters(to,from) +EVP_PKEY *to,*from; + { + if (to->type != from->type) + { + EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_DIFFERENT_KEY_TYPES); + return(0); + } + + if (EVP_PKEY_missing_parameters(from)) + { + EVPerr(EVP_F_EVP_PKEY_COPY_PARAMETERS,EVP_R_MISSING_PARMATERS); + return(0); + } +#ifndef NO_DSA + if (to->type == EVP_PKEY_DSA) + { + BIGNUM *a; + + if ((a=BN_dup(from->pkey.dsa->p)) == NULL) goto err; + if (to->pkey.dsa->p != NULL) BN_free(to->pkey.dsa->p); + to->pkey.dsa->p=a; + + if ((a=BN_dup(from->pkey.dsa->q)) == NULL) goto err; + if (to->pkey.dsa->q != NULL) BN_free(to->pkey.dsa->q); + to->pkey.dsa->q=a; + + if ((a=BN_dup(from->pkey.dsa->g)) == NULL) goto err; + if (to->pkey.dsa->g != NULL) BN_free(to->pkey.dsa->g); + to->pkey.dsa->g=a; + } +#endif + return(1); +err: + return(0); + } + +int EVP_PKEY_missing_parameters(pkey) +EVP_PKEY *pkey; + { +#ifndef NO_DSA + if (pkey->type == EVP_PKEY_DSA) + { + DSA *dsa; + + dsa=pkey->pkey.dsa; + if ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL)) + return(1); + } +#endif + return(0); + } + +EVP_PKEY *EVP_PKEY_new() + { + EVP_PKEY *ret; + + ret=(EVP_PKEY *)Malloc(sizeof(EVP_PKEY)); + if (ret == NULL) + { + EVPerr(EVP_F_EVP_PKEY_NEW,ERR_R_MALLOC_FAILURE); + return(NULL); + } + ret->type=EVP_PKEY_NONE; + ret->references=1; + ret->pkey.ptr=NULL; + ret->attributes=NULL; + ret->save_parameters=1; + return(ret); + } + +int EVP_PKEY_assign(pkey,type,key) +EVP_PKEY *pkey; +int type; +char *key; + { + if (pkey == NULL) return(0); + if (pkey->pkey.ptr != NULL) + EVP_PKEY_free_it(pkey); + pkey->type=EVP_PKEY_type(type); + pkey->save_type=type; + pkey->pkey.ptr=key; + return(1); + } + +int EVP_PKEY_type(type) +int type; + { + switch (type) + { + case EVP_PKEY_RSA: + case EVP_PKEY_RSA2: + return(EVP_PKEY_RSA); + case EVP_PKEY_DSA: + case EVP_PKEY_DSA2: + case EVP_PKEY_DSA3: + return(EVP_PKEY_DSA); + case EVP_PKEY_DH: + return(EVP_PKEY_DH); + default: + return(NID_undef); + } + } + +void EVP_PKEY_free(x) +EVP_PKEY *x; + { + int i; + + if (x == NULL) return; + + i=CRYPTO_add(&x->references,-1,CRYPTO_LOCK_EVP_PKEY); + if (i > 0) return; +#ifdef REF_CHECK + if (i < 0) + { + fprintf(stderr,"EVP_PKEY_free, bad reference count\n"); + abort(); + } +#endif + EVP_PKEY_free_it(x); + Free((char *)x); + } + +static void EVP_PKEY_free_it(x) +EVP_PKEY *x; + { + switch (x->type) + { +#ifndef NO_RSA + case EVP_PKEY_RSA: + case EVP_PKEY_RSA2: + RSA_free(x->pkey.rsa); + break; +#endif +#ifndef NO_DSA + case EVP_PKEY_DSA: + case EVP_PKEY_DSA2: + case EVP_PKEY_DSA3: + DSA_free(x->pkey.dsa); + break; +#endif +#ifndef NO_DH + case EVP_PKEY_DH: + DH_free(x->pkey.dh); + break; +#endif + } + } + |