diff options
Diffstat (limited to 'crypto/asn1/x_pubkey.c')
| -rw-r--r-- | crypto/asn1/x_pubkey.c | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/crypto/asn1/x_pubkey.c b/crypto/asn1/x_pubkey.c new file mode 100644 index 0000000000..b1a2499d34 --- /dev/null +++ b/crypto/asn1/x_pubkey.c @@ -0,0 +1,252 @@ +/* crypto/asn1/x_pubkey.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 "asn1_mac.h" + +/* + * ASN1err(ASN1_F_D2I_X509_PUBKEY,ASN1_R_LENGTH_MISMATCH); + * ASN1err(ASN1_F_X509_PUBKEY_NEW,ASN1_R_LENGTH_MISMATCH); + */ + +int i2d_X509_PUBKEY(a,pp) +X509_PUBKEY *a; +unsigned char **pp; + { + M_ASN1_I2D_vars(a); + + M_ASN1_I2D_len(a->algor, i2d_X509_ALGOR); + M_ASN1_I2D_len(a->public_key, i2d_ASN1_BIT_STRING); + + M_ASN1_I2D_seq_total(); + + M_ASN1_I2D_put(a->algor, i2d_X509_ALGOR); + M_ASN1_I2D_put(a->public_key, i2d_ASN1_BIT_STRING); + + M_ASN1_I2D_finish(); + } + +X509_PUBKEY *d2i_X509_PUBKEY(a,pp,length) +X509_PUBKEY **a; +unsigned char **pp; +long length; + { + M_ASN1_D2I_vars(a,X509_PUBKEY *,X509_PUBKEY_new); + + M_ASN1_D2I_Init(); + M_ASN1_D2I_start_sequence(); + M_ASN1_D2I_get(ret->algor,d2i_X509_ALGOR); + M_ASN1_D2I_get(ret->public_key,d2i_ASN1_BIT_STRING); + if (ret->pkey != NULL) + { + EVP_PKEY_free(ret->pkey); + ret->pkey=NULL; + } + M_ASN1_D2I_Finish(a,X509_PUBKEY_free,ASN1_F_D2I_X509_PUBKEY); + } + +X509_PUBKEY *X509_PUBKEY_new() + { + X509_PUBKEY *ret=NULL; + + M_ASN1_New_Malloc(ret,X509_PUBKEY); + M_ASN1_New(ret->algor,X509_ALGOR_new); + M_ASN1_New(ret->public_key,ASN1_BIT_STRING_new); + ret->pkey=NULL; + return(ret); + M_ASN1_New_Error(ASN1_F_X509_PUBKEY_NEW); + } + +void X509_PUBKEY_free(a) +X509_PUBKEY *a; + { + if (a == NULL) return; + X509_ALGOR_free(a->algor); + ASN1_BIT_STRING_free(a->public_key); + if (a->pkey != NULL) EVP_PKEY_free(a->pkey); + Free((char *)a); + } + +int X509_PUBKEY_set(x,pkey) +X509_PUBKEY **x; +EVP_PKEY *pkey; + { + int ok=0; + X509_PUBKEY *pk; + X509_ALGOR *a; + ASN1_OBJECT *o; + unsigned char *s,*p; + int i; + + if (x == NULL) return(0); + + if ((pk=X509_PUBKEY_new()) == NULL) goto err; + a=pk->algor; + + /* set the algorithm id */ + if ((o=OBJ_nid2obj(pkey->type)) == NULL) goto err; + ASN1_OBJECT_free(a->algorithm); + a->algorithm=o; + + /* Set the parameter list */ + if (!pkey->save_parameters || (pkey->type == EVP_PKEY_RSA)) + { + if ((a->parameter == NULL) || + (a->parameter->type != V_ASN1_NULL)) + { + ASN1_TYPE_free(a->parameter); + a->parameter=ASN1_TYPE_new(); + a->parameter->type=V_ASN1_NULL; + } + } + else +#ifndef NO_DSA + if (pkey->type == EVP_PKEY_DSA) + { + unsigned char *pp; + DSA *dsa; + + dsa=pkey->pkey.dsa; + dsa->write_params=0; + ASN1_TYPE_free(a->parameter); + i=i2d_DSAparams(dsa,NULL); + p=(unsigned char *)Malloc(i); + pp=p; + i2d_DSAparams(dsa,&pp); + a->parameter=ASN1_TYPE_new(); + a->parameter->type=V_ASN1_SEQUENCE; + a->parameter->value.sequence=ASN1_STRING_new(); + ASN1_STRING_set(a->parameter->value.sequence,p,i); + Free(p); + } + else +#endif + { + X509err(X509_F_X509_PUBKEY_SET,X509_R_UNSUPPORTED_ALGORITHM); + goto err; + } + + i=i2d_PublicKey(pkey,NULL); + if ((s=(unsigned char *)Malloc(i+1)) == NULL) goto err; + p=s; + i2d_PublicKey(pkey,&p); + if (!ASN1_BIT_STRING_set(pk->public_key,s,i)) goto err; + Free(s); + + CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY); + pk->pkey=pkey; + + if (*x != NULL) + X509_PUBKEY_free(*x); + + *x=pk; + pk=NULL; + + ok=1; +err: + if (pk != NULL) X509_PUBKEY_free(pk); + return(ok); + } + +EVP_PKEY *X509_PUBKEY_get(key) +X509_PUBKEY *key; + { + EVP_PKEY *ret=NULL; + long j; + int type; + unsigned char *p; + X509_ALGOR *a; + + if (key->pkey != NULL) + { + return(key->pkey); + } + type=OBJ_obj2nid(key->algor->algorithm); + p=key->public_key->data; + j=key->public_key->length; + if ((ret=d2i_PublicKey(type,NULL,&p,(long)j)) == NULL) + { + X509err(X509_F_X509_PUBKEY_GET,X509_R_ERR_ASN1_LIB); + goto err; + } + ret->save_parameters=0; + +#ifndef NO_DSA + a=key->algor; + if (ret->type == EVP_PKEY_DSA) + { + if (a->parameter->type == V_ASN1_SEQUENCE) + { + ret->pkey.dsa->write_params=0; + p=a->parameter->value.sequence->data; + j=a->parameter->value.sequence->length; + if (!d2i_DSAparams(&ret->pkey.dsa,&p,(long)j)) + goto err; + } + ret->save_parameters=1; + } +#endif + key->pkey=ret; + return(ret); +err: + if (ret != NULL) + EVP_PKEY_free(ret); + return(NULL); + } + |