Comments (7)
GoogleCodeExporter
commented on May 24, 2024
It's interesting idea. The upcoming 3.0 release will indeed support
incrementally appending the message. Though, it'll be tricky to continue
appending after you've completed the digest. Completing the digest involves
adding padding, then hashing the last padded block.
Original comment by Jeff.Mott.OR on 26 Jan 2012 at 7:23
- Added labels: Type-Enhancement
- Removed labels: Type-Defect
from crypto-js.
GoogleCodeExporter
commented on May 24, 2024
Cool. It seems doable if you just make the final padding and hashing
calculation local to the function that returns the digest instead of mutating
the object (you could cache the digest if you were worried about the efficiency
of repeated calls to digest()).
Is the code for your upcoming 3.0 release currently available in a public
repository? If so I'd be happy to take a stab at it and send a patch, if you
like.
Original comment by [email protected] on 26 Jan 2012 at 8:00
from crypto-js.
GoogleCodeExporter
commented on May 24, 2024
http://code.google.com/p/crypto-js/source/browse/branches/#branches%2F3.x%2Fsrc
Original comment by Jeff.Mott.OR on 26 Jan 2012 at 8:08
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GoogleCodeExporter
commented on May 24, 2024
I also have the need to compute MD5 checksums incrementally. This, combined
with the new HTML5 File APIs would allow for a very robust upload mechanism.
Any estimate on when this functionality (supposedly in version 3) will be
available?
Thanks!
Evan
Original comment by [email protected] on 16 Mar 2012 at 9:23
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GoogleCodeExporter
commented on May 24, 2024
Version 3 is very close. I'd expect it to be ready within the next month. I'm
mostly focusing on the cipher components now, and the hashing components are
largely set.
Here's a preview for you.
<!doctype html>
<script
src="http://crypto-js.googlecode.com/svn-history/r437/branches/3.x/src/core.js">
</script>
<script
src="http://crypto-js.googlecode.com/svn-history/r437/branches/3.x/src/sha256.js
"></script>
<script
src="http://crypto-js.googlecode.com/svn-history/r437/branches/3.x/src/enc-base6
4.js"></script>
<script>
// Basic hashing
var hash = CryptoJS.SHA256('abc');
// Output encoding
alert('Hash encoded as latin-1 string: ' + hash.toString(CryptoJS.enc.Latin1));
alert('Hash encoded as base-64 string: ' + hash.toString(CryptoJS.enc.Base64));
alert('Hash encoded as hex string: ' + hash); // Default is hex
// Incremental hashing
var sha256 = CryptoJS.algo.SHA256.create();
sha256.update('a');
sha256.update('b');
sha256.update('c');
var hash = sha256.finalize();
alert('Incrementally computed hash: ' + hash);
// Incremental hashing, capturing intermediate hash values
var sha256 = CryptoJS.algo.SHA256.create();
var hashA = sha256.update('a').clone().finalize();
var hashAB = sha256.update('b').clone().finalize();
var hashABC = sha256.update('c').clone().finalize();
alert('Intermediate hash value "a": ' + hashA);
alert('Intermediate hash value "ab": ' + hashAB);
alert('Intermediate hash value "abc": ' + hashABC);
</script>
Original comment by Jeff.Mott.OR on 16 Mar 2012 at 10:27
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GoogleCodeExporter
commented on May 24, 2024
This feature now officially available with version 3.
Original comment by Jeff.Mott.OR on 6 May 2012 at 7:51
- Changed state: Fixed
from crypto-js.
GoogleCodeExporter
commented on May 24, 2024
Great! Thanks for the excellent work, Jeff.
Original comment by [email protected] on 7 May 2012 at 7:50
from crypto-js.
Related Issues (20)
- DES and 3DES work only on alphabets
- CryptoJS.SHA3 does not pass any Keccak test vectors, it is completely broken HOT 2
- use padding option on AES.decrypt results in endless loading HOT 3
- Unnecessary padding HOT 3
- AES encrypted string to be converted to base 64 string and then to byte array in Javascript
- Uncaught TypeError: Cannot read property 'init' of undefined HOT 1
- Clarify license HOT 2
- Automatic key expiration
- Type a is undefined in rollup version of aes.js line 27. HOT 4
- Crypto.JS PBKDF2 Results Differnt then .Net Rfc2898DeriveBytes HOT 1
- Crypto-js decryption implemention HOT 1
- Most of the hashs wont works regarding file encoding HOT 4
- Not able to decrypt the encrypted data on server side which was encrypted using CryproJS on client side..
- TripleDES result is different each time, and is not correct
- AES 256 decrypt from data oracle function encrypting HOT 1
- Broken hashing with sigBytes< bytes
- Error: Unable to get property 'createEncryptor' of undefined or null reference
- [IE8]Object doesn't support property or method
- decrypt of ciphertext not working for strings HOT 1
- [documentation] Add recommendation to use https
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