小编use*_*991的帖子

我写了一个代码来对一条消息进行签名，该消息显然运行良好，它可以使用DSA私钥（512位）对消息进行签名，然后稍后使用相应的公钥对其进行验证（这里没有问题）。我正在使用Windows 7。

但，

如果要在控制台中验证标志，则openssl命令始终返回：验证失败。

#include <stdio.h>
#include <string.h>
#include <openssl\dsa.h>
#include <openssl\engine.h>
#include <openssl\pem.h>

int main(){
    char privkey[] = {
        "-----BEGIN DSA PRIVATE KEY-----\n"
        "MIH4AgEAAkEA3F41fxvcwGZeFxXg2v0/5SR+cxTizT25QugwZgrC7u2zQYTO1Qu0\n"
        "PPDKUrLxkaLzKsUEJbQ1DImnG/FxtRjH7QIVAOp+o1qPhOI4DtnvYS86ynTxhDcF\n"
        "AkAyKbiUxJigARuuVVlGn4emXOtrT+Al+gmKbbVFfkS62RhSZexQ9+mBLv0/1R8T\n"
        "k37AwuybnflijiPjLxB1ZL00AkA2DXjw+0PJOyrQfn2Q44uHyZMG2WfXqT7CIz26\n"
        "ZiIAHDOkZQhOvPLqCKAXfwHgGrgl2JLovhVY8nPMdNk2vJijAhUAzK9TuVobhOE8\n"
        "kU0xl8lqaI/PMyg=\n"
        "-----END DSA PRIVATE KEY-----"
        };

    char pubkey[] = {
        "-----BEGIN PUBLIC KEY-----\n"
        "MIHwMIGoBgcqhkjOOAQBMIGcAkEA3F41fxvcwGZeFxXg2v0/5SR+cxTizT25Qugw\n"
        "ZgrC7u2zQYTO1Qu0PPDKUrLxkaLzKsUEJbQ1DImnG/FxtRjH7QIVAOp+o1qPhOI4\n"
        "DtnvYS86ynTxhDcFAkAyKbiUxJigARuuVVlGn4emXOtrT+Al+gmKbbVFfkS62RhS\n"
        "ZexQ9+mBLv0/1R8Tk37AwuybnflijiPjLxB1ZL00A0MAAkA2DXjw+0PJOyrQfn2Q\n"
        "44uHyZMG2WfXqT7CIz26ZiIAHDOkZQhOvPLqCKAXfwHgGrgl2JLovhVY8nPMdNk2\n"
        "vJij\n"
        "-----END PUBLIC KEY-----"
        };

    char message[] = {"Hello World!"};

    //save message for console test
    FILE *message_file = fopen ("message.txt","w");
    fwrite(message, strlen(message), 1, message_file);
    fclose(message_file);

    //save private key for console test
    FILE *privkey_file …