A two MByte file needs to be base64 encoded. How much larger (in bytes) does the...
A two MByte file needs to be base64 encoded. How much larger (in bytes) does the file enlarge?
Homework Answers
Base64 encodes each set of 3 bytes into 4 bytes.
This means that the size of the base-64 representation of a string
of size n is:
ceil(n / 3) * 4
Here the file size if 2MB = 2*1024*1024 = 2097152
So, for a 2MB file, the base-64 representation will be
ceil(2*1024*1024/3)*4 = 2796202.67 ~=
2.66MByteslong.
The file will enlarge 699050.67 bytes.
A rough approximation would be increased to 4/3 (33%) of the original.
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A two MByte file needs to be base64 encoded. How much larger (in
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