Google provide some class to do that too.
See GTMBase64 classes at
http://code.google.com/p/google-toolbox-for-mac/source/browse/#svn/trunk/Foundation
Le 14 avr. 2010 à 22:00, joby abraham a écrit :
> Hi Bialecki,
>
> for base64 encoding/decoding you can use openSSL Library which providing by
> MAC OS.
>
> I can give you code snippets for encoding and decoding string.
>
> #include <openssl/bio.h>
> #include <openssl/evp.h>
>
> - (NSString *)base64EncodedString
> {
> // Construct an OpenSSL context
> BIO *context = BIO_new(BIO_s_mem());
>
> // Tell the context to encode base64
> BIO *command = BIO_new(BIO_f_base64());
> context = BIO_push(command, context);
>
> // Encode all the data
> BIO_write(context, [self bytes], [self length]);
> BIO_flush(context);
>
> // Get the data out of the context
> char *outputBuffer;
> long outputLength = BIO_get_mem_data(context, &outputBuffer);
> NSString *encodedString = [NSString
> stringWithCString:outputBuffer
> length:outputLength];
>
> BIO_free_all(context);
>
> return encodedString;
> }
>
>
> + (NSData *)dataByDase64DecodingString:(NSString *)decode
> {
> decode = [decode stringByAppendingString:@"\n"];
> NSData *data = [decode dataUsingEncoding:NSASCIIStringEncoding];
>
> // Construct an OpenSSL context
> BIO *command = BIO_new(BIO_f_base64());
> BIO *context = BIO_new_mem_buf((void *)[data bytes], [data length]);
>
> // Tell the context to encode base64
> context = BIO_push(command, context);
>
> // Encode all the data
> NSMutableData *outputData = [NSMutableData data];
>
> #define BUFFSIZE 256
> int len;
> char inbuf[BUFFSIZE];
> while ((len = BIO_read(context, inbuf, BUFFSIZE)) > 0)
> {
> [outputData appendBytes:inbuf length:len];
> }
>
> BIO_free_all(context);
> [data self]; // extend GC lifetime of data to here
>
> return outputData;
> }
>
>
> 2010/4/14 Bartosz Bialecki <biale...@hqs.de>
>
>> Hi everyone,
>> I have some problem. I'm writing a web service client and one of my xml
>> request require a data encoded as base64Binary. I'm using NSData type in my
>> application but data are encoded as base64. Do you know any solution?
>>
>> Best regards,
>> Bartosz Bialecki
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>
>
>
> --
> Thanks & Regards,
> Joby Abraham.
> _______________________________________________
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