证书操作(2)

if(x509Cert==NULL) {

printf(\ return; }

//获取证书版本

Version = X509_get_version(x509Cert); printf(\ //获取证书序列号

Serial = X509_get_serialNumber(x509Cert); //打印证书序列号

printf(\

for(i = 0; i < Serial->length; i++) {

printf(\ }

printf(\

//获取证书颁发者信息，X509_NAME结构体保存了多项信息，包括国家、组织、部门、通用名、mail等。

issuer = X509_get_issuer_name(x509Cert); //获取X509_NAME条目个数

entriesNum = sk_X509_NAME_ENTRY_num(issuer->entries); //循环读取各条目信息

for(i=0;i

//获取第I个条目值

name_entry = sk_X509_NAME_ENTRY_value(issuer->entries,i); //获取对象ID

Nid = OBJ_obj2nid(name_entry->object); //判断条目编码的类型

if(name_entry->value->type==V_ASN1_UTF8STRING)//把UTF8编码数据转化成可见字符

{

nUtf8 = 2*name_entry->value->length; pUtf8 = malloc(nUtf8); memset(pUtf8,0,nUtf8);

rv = MultiByteToWideChar( CP_UTF8, 0,

(char*)name_entry->value->data, name_entry->value->length, pUtf8,

nUtf8);

rv = WideCharToMultiByte( CP_ACP, 0, pUtf8, rv,

(char*)msginfo, nUtf8, NULL, NULL); free(pUtf8); pUtf8 = NULL; msginfoLen = rv;

msginfo[msginfoLen]='\\0'; } else {

msginfoLen=name_entry->value->length;

memcpy(msginfo,name_entry->value->data,msginfoLen); msginfo[msginfoLen]='\\0'; }

//根据NID打印出信息 switch(Nid) {

case NID_countryName://国家

printf(\ break;

case NID_stateOrProvinceName://省

printf(\ break;

case NID_localityName://地区

printf(\ break;

case NID_organizationName://组织

printf(\ break;

case NID_organizationalUnitName://单位

printf(\ break;

case NID_commonName://通用名

printf(\ break;

case NID_pkcs9_emailAddress://Mail

printf(\

break; }//end switch }

//获取证书主题信息

subject = X509_get_subject_name(x509Cert); //获得证书主题信息条目个数

entriesNum = sk_X509_NAME_ENTRY_num(subject->entries); //循环读取个条目信息

for(i=0;i

//获取第I个条目值

name_entry = sk_X509_NAME_ENTRY_value(subject->entries,i); Nid = OBJ_obj2nid(name_entry->object); //判断条目编码的类型

if(name_entry->value->type==V_ASN1_UTF8STRING)//把UTF8编码数据转化成可见字符 {

nUtf8 = 2*name_entry->value->length; pUtf8 = malloc(nUtf8); memset(pUtf8,0,nUtf8);

rv = MultiByteToWideChar( CP_UTF8, 0,

(char*)name_entry->value->data, name_entry->value->length, pUtf8, nUtf8);

rv = WideCharToMultiByte( CP_ACP, 0, pUtf8, rv,

(char*)msginfo, nUtf8, NULL, NULL); free(pUtf8); pUtf8 = NULL; msginfoLen = rv;

msginfo[msginfoLen]='\\0'; } else {

msginfoLen=name_entry->value->length;

memcpy(msginfo,name_entry->value->data,msginfoLen); msginfo[msginfoLen]='\\0'; }

switch(Nid) {

case NID_countryName://国家

printf(\ break;

case NID_stateOrProvinceName://省

printf(\ break;

case NID_localityName://地区

printf(\ break;

case NID_organizationName://组织

printf(\ break;

case NID_organizationalUnitName://单位

printf(\ break;

case NID_commonName://通用名

printf(\ break;

case NID_pkcs9_emailAddress://Mail

printf(\ break; }//end switch }

//获取证书生效日期

time = X509_get_notBefore(x509Cert);

printf(\//获取证书过期日期

time = X509_get_notAfter(x509Cert);

printf(\//获取证书公钥

pubKey = X509_get_pubkey(x509Cert); pTmp=derpubkey;

//把证书公钥专为为DER编码的数据

derpubkeyLen=i2d_PublicKey(pubKey,&pTmp); printf(\

for(i = 0; i < derpubkeyLen; i++) {

printf(\ }

printf(\

X509_free(x509Cert); return; }

int main() {

OpenSSL_add_all_algorithms(); tX509_Verify(); tGetX509Info(); return 0; }