Example usage for java.security MessageDigest digest

List of usage examples for java.security MessageDigest digest

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Introduction

In this page you can find the example usage for java.security MessageDigest digest.

Prototype

public byte[] digest(byte[] input)

Source Link

Document

Performs a final update on the digest using the specified array of bytes, then completes the digest computation.

Usage

From source file:it.smartcommunitylab.aac.oauth.AACOAuth2Utils.java

private static String getS256CodeChallenge(String codeVerifier) {
    MessageDigest md;
    try {// ww  w  .  j  av a  2 s.  com
        md = MessageDigest.getInstance("SHA-256");
    } catch (NoSuchAlgorithmException e) {
        throw new IllegalArgumentException("No such algorithm [SHA-256]");
    }
    byte[] sha256 = md.digest(Utf8.encode(codeVerifier));
    String codeChallenge = Base64.encodeBase64URLSafeString(sha256);
    return codeChallenge;
}