- (NSString *)MD5String;
{
CC_MD5_CTX digestCtx;
unsigned char digestBytes[CC_MD5_DIGEST_LENGTH];
char digestChars[CC_MD5_DIGEST_LENGTH * 2 + 1];
NSRange stringRange = NSMakeRange(0, [self length]);
unsigned char buffer[128];
NSUInteger usedBufferCount;
CC_MD5_Init(&digestCtx);
while ([self getBytes:buffer
maxLength:sizeof(buffer)
usedLength:&usedBufferCount
encoding:NSUnicodeStringEncoding
options:NSStringEncodingConversionAllowLossy
range:stringRange
remainingRange:&stringRange])
CC_MD5_Update(&digestCtx, buffer, usedBufferCount);
CC_MD5_Final(digestBytes, &digestCtx);
for (int i = 0;
i < CC_MD5_DIGEST_LENGTH;
i++)
sprintf(&digestChars[2 * i], "%02x", digestBytes[i]);
return [NSString stringWithUTF8String:digestChars];
}
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