这是我正在使用的代码，我尝试进行base64解码的字符串位于下方，该字符串来自chrome localstate文件，DPAPI键。
RFBBUEkBAAAA0Iyd3wEV0RGMegDAT8KX6wEAAADi+GGk7DWzQpfcOpvrA5QBAAAAAAAIAAAAABBmAAAAAQAAIAAAAB71Yux67n+/BdPaKkGQcjERQXhrLPqH+5oIpE0adTRXAAAAAAAA6AAAAAAAgAAIAAAADw0+h5r3BV2XvQ5Dxou4g8lLEs +r7rMr4urasiaUVbLMAAAAIvSN/H/Q04j/4gknX3tPi/jPFo5zqEqsNFOqq3iMvVoAK5ZpYWdc5WBxzR+gXb+7UAAAAC6hU4zxFN3wWaxxwk1YVIB+ePgEFoe9SYynAXhkUIlxSheodOTXxCFij2DPCvxH8eAze6qw6lxHNC4NVHt7Yvu
/* 使用 OPENSSL 的 BASE-64 编码器和解码器 */
#include <openssl/pem.h>
#include <string.h> //Only needed for strlen().
unsigned char *base64decode (const void *b64_decode_this, int decode_this_many_bytes){
BIO *b64_bio, *mem_bio; //Declares two OpenSSL BIOs: a base64 filter and a memory BIO.
unsigned char *base64_decoded = calloc( (decode_this_many_bytes*3)/4+1, sizeof(char) ); //+1 = null.
b64_bio = BIO_new(BIO_f_base64()); //Initialize our base64 filter BIO.
mem_bio = BIO_new(BIO_s_mem()); //Initialize our memory source BIO.
BIO_write(mem_bio, b64_decode_this, decode_this_many_bytes); //Base64 data saved in source.
BIO_push(b64_bio, mem_bio); //Link the BIOs by creating a filter-source BIO chain.
BIO_set_flags(b64_bio, BIO_FLAGS_BASE64_NO_NL); //Don't require trailing newlines.
int decoded_byte_index = 0; //Index where the next base64_decoded byte should be written.
while ( 0 < BIO_read(b64_bio, base64_decoded+decoded_byte_index, 1) ){ //Read byte-by-byte.
decoded_byte_index++; //Increment the index until read of BIO decoded data is complete.
} //Once we're done reading decoded data, BIO_read returns -1 even though there's no error.
BIO_free_all(b64_bio); //Destroys all BIOs in chain, starting with b64 (i.e. the 1st one).
return base64_decoded; //Returns base-64 decoded data with trailing null terminator.
}
int main(void){
char data_to_decode[]="RFBBUEkBAAAA0Iyd3wEV0RGMegDAT8KX6wEAAADi+GGk7DWzQpfcOpvrA5QBAAAAAAIAAAAAABBmAAAAAQAAIAAAAB71Yux67n+/BdPaKkGQcjERQXhrLPqH+5oIpE0adTRXAAAAAA6AAAAAAgAAIAAAADw0+h5r3BV2XvQ5Dxou4g8lLEs+r7rMr4urasiaUVbLMAAAAIvSN/H/Q04j/4gknX3tPi/jPFo5zqEqsNFOqq3iMvVoAK5ZpYWdc5WBxzR+gXb+7UAAAAC6hU4zxFN3wWaxxwk1YVIB+ePgEFoe9SYynAXhkUIlxSheodOTXxCFij2DPCvxH8eAze6qw6lxHNC4NVHt7Yvu";
int bytes_to_decode = strlen(data_to_decode); //Number of bytes in string to base64 decode.
unsigned char *base64_decoded = base64decode(data_to_decode, bytes_to_decode); //Base-64 decoding.
printf("Base-64 decoded string is: %sn", base64_decoded); //Prints base64 decoded string.
printf("LENGHT:%d",strlen(base64_decoded));
int i=0;
while(base64_decoded[i]!=' ')
{
printf("n%i",i);
i++;
}
}
这是我通过 gdb 运行时返回的字符串
我能够通过gdb x /bx命令而不是 p(print( 查看内存内容来解决它，因为打印不起作用，因为它是二进制数据，并且空终止符会在打印时终止字符串，感谢注释者。