How to convert base64 string to sha256?

Question

I have my base64:

 String myBase64 ="MSBtZV9yYW5nZT0xNiBjaHJvbWFfbWU9MSB0cmVsbGlzPTEgOHg4ZGN0PTEgY3FtPTAgZGV";

How convert this base64 String to sha256?

What do you mean by "convert … to sha256"? SHA256 is a digest, not a format. — user149341
– user149341, Commented Sep 17, 2018 at 2:54

S.K. · Accepted Answer · 2018-09-17 02:58:40Z

3

Sha-256 is a hashing algorithm. Use following to create a hash of your base 64 string:

MessageDigest digest = MessageDigest.getInstance("SHA-256");
byte[] myHashBytes = digest.digest(myBase64.getBytes(StandardCharsets.UTF_8));

You can again base64 encode the hash bytes to get a hash string:

String myHash = Base64.getEncoder().encodeToString(myHashBytes);

answered Sep 17, 2018 at 2:58

S.K.

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