我正在尝试更新使用visual studio 2005构建的旧项目以使用visual studio 2012,我收到的错误是我无法解决的.
在VS2005下运行良好的代码:
#include <iostream>
#include <string>
#include <sstream>
using std::cout;
using std::wcout;
using std::endl;
using std::wstring;
using std::string;
class Value
{
public:
Value(const wstring& value)
{
v = value;
}
Value(Value& other)
{
this->v = other.v;
}
template<typename T>
operator T() const
{
T reply;
std::wistringstream is;
is.str(v);
is >> reply;
return reply;
}
operator wstring() const
{
return v;
}
private:
wstring v;
};
int main()
{
Value v(L"Hello World");
wstring str = v;
wcout …我有一个 DER 形式的 EC 私钥，我想将其转换为 PEM 形式。但我看不懂 DER 表格。
私钥生成如下：
openssl ecparam -param_enc named_curve -check -name "-secp384r1" -genkey -noout -out "params.pem" -outform pem
openssl pkcs8 -in "params.pem" -inform pem -topk8 -nocrypt -out "private.der" -outform der
如果我然后尝试读取私钥
openssl ec -in private.der -inform der
我收到错误：
read EC key
unable to load Key
4674530924:error:0DFFF0A8:asn1 encoding routines:CRYPTO_internal:wrong tag:/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/libressl/libressl-47.140.1/libressl-2.8/crypto/asn1/tasn_dec.c:1144:
4674530924:error:0DFFF03A:asn1 encoding routines:CRYPTO_internal:nested asn1 error:/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/libressl/libressl-47.140.1/libressl-2.8/crypto/asn1/tasn_dec.c:717:
4674530924:error:0DFFF03A:asn1 encoding routines:CRYPTO_internal:nested asn1 error:/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/libressl/libressl-47.140.1/libressl-2.8/crypto/asn1/tasn_dec.c:646:Field=privateKey, Type=EC_PRIVATEKEY
4674530924:error:10FFF010:elliptic curve routines:CRYPTO_internal:EC lib:/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/libressl/libressl-47.140.1/libressl-2.8/crypto/ec/ec_asn1.c:1353:
如果我尝试：
openssl pkcs8 -in private.der -inform der
然后我得到这些错误：
Error reading key …