Question

我使用以下代码生成RSA密钥对并将其转换为PEM。但是当我使用OpenSSL函数时，PEM_read_bio_RSA_PUBKEY返回null。

Java代码：

public static RSAKeyPair creatKeyPair(int keySize) throws Exception {
    KeyPairGenerator keyGen = KeyPairGenerator.getInstance(ALGORITHM);
    keyGen.initialize(keySize, new SecureRandom());
    return getRSAKeyPair(keyGen.genKeyPair());
}
private static RSAKeyPair getRSAKeyPair(KeyPair keyPair) throws Exception {
    RSAKeyPair rsaKeyPair = new RSAKeyPair();
    rsaKeyPair.PrivateKey = rsaKeyToPEMFormat(keyPair.getPrivate());
    rsaKeyPair.PublicKey = rsaKeyToPEMFormat(keyPair.getPublic());
    return rsaKeyPair;
}

private  static String rsaKeyToPEMFormat(Key key){
    StringWriter writer = new StringWriter();
    //org.bouncycastle.openssl.PEMWriter  bcprov-ext-jdk16-1.46.jar
    PEMWriter pemWriter = new PEMWriter(writer);
    try {
        pemWriter.writeObject(key);    
        pemWriter.close();
        return writer.toString();
    } catch (IOException e) {
        LogLIB.error(e.getMessage(), e);
    }
    return null;
}

C 代码：

RSA * createRSA(unsigned char * key, int flag) {
    RSA *rsa = NULL;
    BIO *keybio;
    int keylength = strlen(key);
    keybio = **BIO_new_mem_buf(key, -1);** 
    if (keybio == NULL) {
        LOGV( "Failed to create key BIO" );
        return 0;
    }
    if (flag) {
        rsa = PEM_read_bio_RSA_PUBKEY(keybio, &rsa, NULL, NULL); //return null !!!
    } else {
        rsa = PEM_read_bio_RSAPrivateKey(keybio, &rsa, NULL, NULL);
    }
    if (rsa == NULL) {
        LOGV( "Failed to create RSA");
        //printf( "Failed to create RSA" );
    }

    return rsa;
}

我的测试键：

Java生成RSA密钥对并转换为PEM - 但OpenSSL函数PEM_read_bio_RSA_PUBKEY返回null

0 个答案: