tags:

views:

247

answers:

1
Q: 

openssl CRC32 calculation

Hi all,

I have seen some of the other questions here about the CRC 32 calculation. But none were satisfactory for me, hence this.

Does openssl libraries have any api support for calculating the CRC32? I am already using openssl for SHA1, so would prefer to use it than link in one more library for CRC32(my implementation is in C).

Thanks.

A: 

No, OpenSSL doesn't include CRC32 code.

However, zlib is a very common library which does. Try searching for "crc32" in http://www.zlib.net/manual.html

agl  2010-04-20 22:14:48
Thanks, that is an option. But I found cryptopp (http://www.cryptopp.com) useful.
sthustfo  2010-04-24 04:34:37

related questions

How to find crc32 of big files ?
PHP CRC32 length output
Can one construct a "good" hash function using CRC32C as a base.
Javascript crc32 function and PHP crc32 not matching
crc32 decrypt short string
How is a CRC32 checksum calculated?
CRC for PNG file format
PHP crc32() only numbers
Data Length vs CRC Length
hw to get source code native c language library of java 1.4?
C# fast crc32 calculation :
Dot net 3.5: does dot net 3.5 provides some api to calculate crc32 for input data?
is there any better algorithm of crc32 to check corruption of data?
.net 3.5:how to implement calculate crc32 for data using dot net 3.5 api?
the fastest way to create checksum for large files in python
Reversing CRC32
Efficient ways of telling whether or not a string/file has changed - crc32? md5? something else?
CRC32 to make short URL for web
Hash function combining - is there a significant decrease in collision risk?
Creating zip using Zip Utility
What is a running CRC?
Why is this CRC32 implementation in C# so slow?
CRC32 C or C++ implementation
How do I calculate CRC32 of a string