Getting SHA256 in base64 format using DigestUtils

2
votes

I'm trying to get the SHA256 hash of a string in base64 format.

I'm using DigestUtils from org.apache.commons.codec.digest. I don't know how to get the Base64 format, even though I can get the Hex format.

Sha256String = org.apache.commons.codec.digest.DigestUtils.sha256Hex(StringText);

Using "a" as stringtest, this line returns

ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb

But what I actually need is ypeBEsobvcr6wjGzmiPcTaeG7/gUfE5yuYB3ha/uSLs.

I have been reading nonstop, and can't understand how to do it.

Now I'm trying this

Byte[] digest = org.apache.commons.codec.digest.DigestUtils.sha256(StringText);

And this I need to store it in a variable, so I'm trying this

String OutStr = new String(digest);

With no luck. I don't know where else to search help, for I had read all the google searches a lot of times (and if the answer is there, I'm not seeing it)

I don't code in java, but this time I need this to get working! Love!

1
javahashbase64sha256
eventually feeding that byte[] into Base64.Encoder.encodeToString() – user85421

1 Answers

1
votes

You can use the Base64.Encoder.encodeToString() method to convert the byte array into a Base64.

Here is a short example: (since I am not familiar with your util, just replace the some data with your byte array)

byte[] data = someData;
MessageDigest digester = MessageDigest.getInstance("SHA-256");
digester.update(data);
String base64Encoded = Base64.getEncoder().encodeToString(digester.digest());