133 lines
3.3 KiB
C
133 lines
3.3 KiB
C
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/*
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**********************************************************************************************************************
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* eGon
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* the Embedded GO-ON Bootloader System
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* eGON arm boot sub-system
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*
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* Copyright(C), 2006-2014, Allwinner Technology Co., Ltd.
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* All Rights Reserved
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*
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* File :
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*
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* By : Jerry
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*
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* Version : V2.00
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*
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* Date :
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*
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* Descript:
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**********************************************************************************************************************
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*/
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#include "common.h"
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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int sunxi_rsa_publickey_decrypt(char *source_str, char *decryped_data, int data_bytes, char *key_path)
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{
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RSA *p_rsa;
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FILE *file;
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int rsa_len, ret=-1;
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char fullname[MAX_PATH];
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memset(fullname, 0, MAX_PATH);
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sunxi_GetFullPath(fullname, key_path);
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if((file=fopen(fullname,"r"))==NULL)
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{
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printf("open key file error\n");
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return -1;
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}
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if((p_rsa=PEM_read_RSA_PUBKEY(file,NULL,NULL,NULL))==NULL)
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{
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printf("unable to get public key\n");
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goto __sunxi_rsa_publickey_decrypt_err;
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}
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rsa_len=RSA_size(p_rsa);
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ret = RSA_public_decrypt(rsa_len,(unsigned char *)source_str, (unsigned char*)decryped_data, p_rsa, RSA_NO_PADDING);
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__sunxi_rsa_publickey_decrypt_err:
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RSA_free(p_rsa);
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fclose(file);
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return ret;
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}
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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int sunxi_rsa_privatekey_encrypt(char *source_str, char *encryped_data, int data_bytes, char *key_path)
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{
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RSA *p_rsa;
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FILE *file;
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int rsa_len, ret=-1;
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char fullname[MAX_PATH];
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memset(fullname, 0, MAX_PATH);
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sunxi_GetFullPath(fullname, key_path);
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sunxi_dbg("%s %s %d: keyname=%s\n", __FILE__, __func__, __LINE__, fullname);
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if((file=fopen(fullname,"r"))==NULL)
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{
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printf("open key file error\n");
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return -1;
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}
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if((p_rsa=PEM_read_RSAPrivateKey(file,NULL,NULL,NULL))==NULL)
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{
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printf("unable to get private key\n");
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goto __sunxi_rsa_privatekey_encrypt_err;
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}
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sunxi_dbg("data bytes %d\n", data_bytes);
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rsa_len=RSA_size(p_rsa);
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sunxi_dbg("rsa_len=%d\n", rsa_len);
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ret = RSA_private_encrypt(rsa_len,(unsigned char *)source_str,(unsigned char*)encryped_data,p_rsa,RSA_NO_PADDING);
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sunxi_dbg("encrypt ret=%d\n", ret);
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#ifdef _DEBUG
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if(ret >= 0)
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{
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sunxi_dbg("begin dump\n");
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sunxi_dump(encryped_data, 2048/8);
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sunxi_dbg("finish dump\n");
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}
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#endif
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__sunxi_rsa_privatekey_encrypt_err:
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RSA_free(p_rsa);
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fclose(file);
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return ret;
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}
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