diff --git a/sheet01/a2/b-sha2.txt b/sheet01/a2/b-sha2.txt
new file mode 100644
index 0000000..1a02e2d
Binary files /dev/null and b/sheet01/a2/b-sha2.txt differ
diff --git a/sheet01/a2/b-sha3.txt b/sheet01/a2/b-sha3.txt
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diff --git a/sheet01/a2/b.txt b/sheet01/a2/b.txt
index e69de29..5b2c124 100644
--- a/sheet01/a2/b.txt
+++ b/sheet01/a2/b.txt
@@ -0,0 +1,2 @@
+plaintext.txt -Algorithm SHA256
+reads the plaintext file and calculates a unique hash string using the SHA-256 cryptographic algorithm.
\ No newline at end of file