RE: MS Crypto API and Sun's JCE producing different MD5 MAC Results.
Date: Fri, 4 Jun 2004 01:41:03 -0700
Try reversing the bytes. I ran into a similar thing with signatures (encryption of a hash) between Win32 & Java.
- RE: Signing before Encryption and Signing after Encryption
... The property that a hash match is supposed to verify (is this ... Signing before Encryption and Signing after Encryption ... Signing with symmetric keys is a lot more ...
- Re: Newbie - Is this Reasonable?
... because this hash is stored in the database. ... So you use PKCS5v2 to generate a key hash from a salt and the user's passphrase, then store the salt and the hash in a database. ... are even more critical in database applications because the payoff from tampering with selected fields may be much higher, fields tend to be fixed-length so it's easier to tamper with them in a meaningful way, and databases lend themselves to off-line analysis, so the attacker can marshall more resources and take more time to attack your system. ... You're using a stream cipher for encryption. ...
- Re: Signing before Encryption and Signing after Encryption
... Hash: SHA1 ... Encryption and Signing after Encryption ... are signature schemes that only require symmetric keys. ...
- Re: Backup of encrypted Data in the Cloud
... Unix timestamp at encryption time and the secure hash of the plaintext ... that there is none.If it is secure, then using the timestamp is overkill. ... Thus I need a second value apart from the plaintext hash, here the timestamp at encryption time fit in quite well. ...
- Re: Encrypting incoming messages with GnuPG
... Hash: SHA1 ... Trick is to not write to disk prior to encryption. ... the 'nobody' user, and I've setup the GPG keys ...