My client is sending me a SHA-256 encrypted string. And also it is having a salt. Myself and my client both are knowing the above salt. I need to check weather the string is having correct salt or not.
I am trying to find something potentially faster then SHA256. I have over 1 billion records I need to hash and verify if they are unique. I am currently running it through an MD5 which seems pretty fast then through the sha256 to avoid collisions. Running them in that order seems to give me a little performance boost but I still need it faster. I am looking for the names or examples of some hashes done in c# or some pseudo-code so I can recreate it in c#.
Due to windows changing their security policies, we are planning to begin code-signing driver files with the SHA-256 algorithm instead of SHA-1. However, we still want to be able to support older OS's that still require SHA-1 signing.
Using Microsoft's signtool.exe we are able to code sign files successfully with both SHA-1 and SHA-256 digest algorithms using the /fd flag. However, if possible, we would like to sign the file with both algorithms simultaneously. Is this even possible? We would like to avoid having multiple sets of drivers that are signed with different algorithms and determining which set to install based on OS -- which would be our alternative approach.
If anyone has had experience with accomplishing this please explain what approach you took. If this isn't possible, an explanation of why it's impossible would be appreciated. Thanks!
I can make an HMAC using the following:
var encrypt = crypto.createHmac("SHA256", secret).update(string).digest('base64');
I am trying to decrypt an encoded HMAC with the secret:
var decrypt = crypto.createDecipher("SHA256", secret).update(string).final("ascii");
The following was unsuccessful. How can I decrypt a HMAC with the key?
I get the following error:
node-crypto : Unknown cipher SHA256crypto.js:155 return (new Decipher).init(cipher, password); ^Error: DecipherInit error
Tomorrow paypal will be flipping the switch for two hours on mandatory sha-256 and g5 root certificates. Here's the link:
We use payflow pro which is at the bottom of the third table. How can I verify that we are up to date before the two hour test occurs?