ios用戶端RSA公開金鑰加密 .net後台私密金鑰解密解決方案(基於Openssl)

來源:互聯網
上載者:User

標籤:ios rsa   ios openssl   openssl   

1.需要後台提供.pem格式的Openssl公開金鑰檔案,也可以自己製作。具體請參考:http://www.qmailer.net/archives/216.html(OpenSSL密鑰相關命令

char *my_encrypt(const char *str,const char *path_key){

     char *p_en;
     RSA *p_rsa;
     FILE *file;
     int flen,rsa_len;
     if((file=fopen(path_key,"r"))==NULL){
         perror("open key file error");
         return NULL;
     }
     if((p_rsa=PEM_read_RSA_PUBKEY(file,NULL,NULL,NULL))==NULL){
     //if((p_rsa=PEM_read_RSAPublicKey(file,NULL,NULL,NULL))==NULL){
         ERR_print_errors_fp(stdout);
         return NULL;
     }
    NSString * plainString = @"plainString";
    int len = (int) [plainString length];//待加密字母串長度
    unsigned char *plainBuffer = (unsigned char *) [plainString UTF8String];
    int clen = RSA_size(p_rsa);
    unsigned char *cipherBuffer = calloc(clen, sizeof(unsigned char));
    

    RSA_public_encrypt(len, plainBuffer, cipherBuffer, p_rsa, RSA_PKCS1_PADDING);

    return cipherBuffer;

}


2.也可以嘗試:

- (NSString *)encryptWithString:(NSString *)content

{
   NSData *publicKey = [NSData dataFromBase64String:RSA_KEY_BASE64];
   
    NSData *usernamm = [content dataUsingEncoding: NSUTF8StringEncoding];
   
    NSData *newKey= [SecKeyWrapper encrypt:usernamm publicKey:publicKey];
 
    NSString *result = [newKey base64EncodedString];
    
    return result;
}


參考連結:http://www.cnblogs.com/aLittleBitCool/archive/2011/09/22/2185418.html

                  http://www.qmailer.net/archives/216.html

著作權聲明:本文為博主原創文章,未經博主允許不得轉載。

ios用戶端RSA公開金鑰加密 .net後台私密金鑰解密解決方案(基於Openssl)

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