온라인 MD5 해시 생성기

When I run the following on my Macbook, I get the error:

>>> import hashlib>>> hashlib.md5(usedforsecurity=False)Traceback (most recent call last):  File "<stdin>", line 1, in <module>TypeError: openssl_md5() takes no keyword arguments

But when I run it on my Linux box, it works!

>>> import hashlib>>> hashlib.md5(usedforsecurity=False)<md5 HASH object @ 0x7f763c1375d0>

My problem is, I need to run some safe, non-security related code on my FIPS enabled system (such as managing a cache of user requests which hashes the user query as an MD5 string). Using the usedforsecurity flag prevents a FIPs exception.

This works fine, except when I want to test my code on my Macbook. My Macbook's "libcrypto" library apparently doesn't support this usedforsecurity flag. Is there a good way to detect if the underlying C bindings behind hashlib.md5 support this flag or not?

I am trying to distribute a set of items across number of buckets. I am looking for following properties:

1. Bucket assignment needs to be deterministic. In different runs sameinput should end up in the same bucket.

2. Distribution of data between buckets should be uniform.

3. This should work for fairly small number of inputs (e.g. if I wantto distribute 50 inputs across 25 buckets ideally each bucket willhave 2 items).

First try was to generate md5 from input data and form bucket from first bytes of md5. I am not too satisfied with uniformity. It works well when input is large but not so well for small input. E.g. distributing 100 items across 64 buckets:

List<string> l = new List<string>();for (int i = 0; i < 100; i++){    l.Add(string.Format("data{0}.txt", i));}int[] buckets = new int[64];var md5 = MD5.Create();foreach (string str in l){    {        byte[] hash = md5.ComputeHash(Encoding.Default.GetBytes(str));        uint bucket = BitConverter.ToUInt32(hash, 0) % 64;        buckets[bucket % 64]++;    }}

Any suggestions what could I do to achieve higher uniformity? Thanks.

I have the InputStream of an incoming Http connection (arriving via an javax.servlet.http.HttpServletRequest object). While it is used/processed, a SHA_512 message digest is created from it. This is the current state of the implementation, which I cannot alter.

Due to the requirements of my task, I need to ALSO calculate a MD5 digest signature of the same content.

The only way I was able to do this was saving the original content in a byte array, and then simply creating two distinct ByteArrayInputStreams from it, and digesting them.

ByteArrayOutputStream baos = new ByteArrayOutputStream();IOUtils.copy(request.getInputStream(), baos);byte[] originalContent = baos.toByteArray();InputStream is1 = new ByteArrayInputStream(originalContent);// is1 being processed, SHA_512 calculated...DigestInputStream dis2 = new DigestInputStream(new ByteArrayInputStream(originalContent), MessageDigest.getInstance("MD5"));IOUtils.toByteArray(dis);String myMD5 = BinaryUtils.toHex(dis.getMessageDigest().digest());

Is there any other more efficient way possible ?

Thanks.

I am attempting to hash a string to a 64-bit value (bigint) in MySQL. I am aware of the MD5() function, which returns a 128-bit hash as a binary string. I'd be happy to just take the bottom or top 64 bits of this result. However, I cannot figure out how to get from a binary string type to a numeric type of any sort. Any pointers?

I have a table with the following columns:Userid, Money, "CC" and Real money

CC is hash value of other columns.

This is the string for my md5 value:

jOU8l>.fjofw16d21f3s13e5."userid"YY"money".ean13"realmoney"

How can i make a query to update all values from that table.