--- a/app/src/main/java/ch/ethz/ssh2/crypto/digest/HMAC.java	Sun Jan 29 10:25:21 2023 -0700
+++ b/app/src/main/java/ch/ethz/ssh2/crypto/digest/HMAC.java	Wed Feb 01 17:55:29 2023 -0700
@@ -21,15 +21,14 @@
 
     int size;
 
-    public HMAC(Digest md, byte[] key, int size) throws DigestException {
+    public HMAC(Digest md, byte[] key, int digestsize, int blocksize) throws DigestException {
         this.md = md;
-        this.size = size;
+        this.size = digestsize;
         tmp = new byte[md.getDigestLength()];
-        final int BLOCKSIZE = 64;
-        k_xor_ipad = new byte[BLOCKSIZE];
-        k_xor_opad = new byte[BLOCKSIZE];
+        k_xor_ipad = new byte[blocksize];
+        k_xor_opad = new byte[blocksize];
 
-        if (key.length > BLOCKSIZE) {
+        if (key.length > blocksize) {
             md.reset();
             md.update(key);
             md.digest(tmp);
@@ -39,7 +38,7 @@
         System.arraycopy(key, 0, k_xor_ipad, 0, key.length);
         System.arraycopy(key, 0, k_xor_opad, 0, key.length);
 
-        for (int i = 0; i < BLOCKSIZE; i++) {
+        for (int i = 0; i < blocksize; i++) {
             k_xor_ipad[i] ^= 0x36;
             k_xor_opad[i] ^= 0x5C;
         }