hi all
I meet a run time error "OPENSSL_Uplink(0099E000,07): no OPENSSL_Applink" which
feaze me several days.
this is my project description:
I had download openssl-0.9.8i. then build it and install it correctly following
the INSTALL.WIN32 instruction.
I use vs2005 to develop my project
and I had set vs2005 environment such as "MultiThread Debug DLL" etc. Because
it works well in my other projects.
this project is a bit different because the below function is called by a dll
project. but the function is the same in dll project and application project.
[source code]
// "MyCryptlib.cpp"
#include "stdafx.h"#include <openssl/ssl.h>
#include "MyCryptlib.h"#include <iostream>using namespace std;
extern "C"{#include <openssl/applink.c>}
CONF *config=NULL;BIO *bio_err=NULL;// encrypt data#define RSA_SIGN 1#define
RSA_VERIFY 2#define RSA_ENCRYPT 3#define RSA_DECRYPT 4
#define KEY_PRIVKEY 1#define KEY_PUBKEY 2#define KEY_CERT 3
//int EncryptData()int EncryptData(unsigned char* indata, unsigned char*
outdata, char* pubkeyfile, int& len){ ENGINE *e = NULL; BIO *in = NULL, *out =
NULL; char *infile = NULL, *outfile = NULL;#ifndef OPENSSL_NO_ENGINE char
*engine = NULL;#endif char *keyfile = NULL; char rsa_mode = RSA_VERIFY,
key_type = KEY_PRIVKEY; int keyform = FORMAT_PEM; char need_priv = 0, badarg =
0, rev = 0; char hexdump = 0, asn1parse = 0; X509 *x; EVP_PKEY *pkey = NULL;
RSA *rsa = NULL; unsigned char *rsa_in = NULL, *rsa_out = NULL, pad; char
*passargin = NULL, *passin = NULL; int rsa_inlen, rsa_outlen = 0; int keysize;
int ret = 1; CRYPTO_malloc_init();SSL_library_init(); if(!bio_err) bio_err =
BIO_new_fp(stderr, BIO_NOCLOSE);
if (!load_config(bio_err, NULL)) goto end; ERR_load_crypto_strings();
OpenSSL_add_all_algorithms(); pad = RSA_PKCS1_PADDING;
rsa_mode = RSA_ENCRYPT;key_type = KEY_PUBKEY;keyfile = pubkeyfile;//infile =
"data.txt";//outfile = "data.ssl";//cerr <<"just for testing BIO_printf\n" <<
endl;
if(need_priv && (key_type != KEY_PRIVKEY)) { BIO_printf(bio_err, "A private
key is needed for this operation\n"); goto end; }
#ifndef OPENSSL_NO_ENGINE e = setup_engine(bio_err, engine, 0);#endif
if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { BIO_printf(bio_err,
"Error getting password\n"); goto end; }
/* FIXME: seed PRNG only if needed */ app_RAND_load_file(NULL, bio_err, 0);
switch(key_type) { case KEY_PRIVKEY: pkey = load_key(bio_err, keyfile,
keyform, 0, passin, e, "Private Key"); break;
case KEY_PUBKEY: pkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL, e,
"Public Key"); break;
case KEY_CERT: x = load_cert(bio_err, keyfile, keyform, NULL, e,
"Certificate"); if(x) { pkey = X509_get_pubkey(x); X509_free(x); }
break; }
if(!pkey) { return 1; }
rsa = EVP_PKEY_get1_RSA(pkey); EVP_PKEY_free(pkey);
if(!rsa) { BIO_printf(bio_err, "Error getting RSA key\n");
ERR_print_errors(bio_err); goto end; }
if(infile) { if(!(in = BIO_new_file(infile, "rb"))) { BIO_printf(bio_err,
"Error Reading Input File\n"); ERR_print_errors(bio_err); goto end; } }
else in = BIO_new_fp(stdin, BIO_NOCLOSE);
if(outfile) { if(!(out = BIO_new_file(outfile, "wb"))) {
BIO_printf(bio_err, "Error Reading Output File\n");
ERR_print_errors(bio_err); goto end; } } else { out = BIO_new_fp(stdout,
BIO_NOCLOSE);#ifdef OPENSSL_SYS_VMS { BIO *tmpbio =
BIO_new(BIO_f_linebuffer()); out = BIO_push(tmpbio, out); }#endif }
keysize = RSA_size(rsa);
rsa_in = (unsigned char *)OPENSSL_malloc(keysize * 2); rsa_out = (unsigned
char *)OPENSSL_malloc(keysize);
/* Read the input data */ //rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
rsa_inlen = strlen((char *)indata); strcpy((char*)rsa_in, (char*)indata);
if(rsa_inlen <= 0) { BIO_printf(bio_err, "Error reading input Data\n");
exit(1); } if(rev) { int i; unsigned char ctmp; for(i = 0; i < rsa_inlen/2;
i++) { ctmp = rsa_in[i]; rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
rsa_in[rsa_inlen - 1 - i] = ctmp; } } switch(rsa_mode) {
case RSA_VERIFY: rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in,
rsa_out, rsa, pad); break;
case RSA_SIGN: rsa_outlen = RSA_private_encrypt(rsa_inlen, rsa_in,
rsa_out, rsa, pad); break;
case RSA_ENCRYPT: rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in,
rsa_out, rsa, pad); break;
case RSA_DECRYPT: rsa_outlen = RSA_private_decrypt(rsa_inlen, rsa_in,
rsa_out, rsa, pad); break;
} if(rsa_outlen <= 0) { BIO_printf(bio_err, "RSA operation error\n");
ERR_print_errors(bio_err); goto end; }
memcpy(outdata, rsa_out, rsa_outlen);
outdata[rsa_outlen] = 0;len =
rsa_outlen;//cout<<"%%%%%%%%%%len%%%%%%%%%"<<len<<endl;ret = 0; if(asn1parse) {
if(!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
ERR_print_errors(bio_err); } } else if(hexdump) BIO_dump(out, (char *)rsa_out,
rsa_outlen); else BIO_write(out, rsa_out, rsa_outlen); end: RSA_free(rsa);
BIO_free(in); BIO_free_all(out); if(rsa_in) OPENSSL_free(rsa_in); if(rsa_out)
OPENSSL_free(rsa_out); if(passin) OPENSSL_free(passin); return ret;}
this function use a pass in a buffer (indata) , and expect a buffer (outdata)
out. outdata contains encrypted data.
please help me ! thank you for your kind in advance.
by the way, I wirte above EncryptData function referring to rsa source code.
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