Cull remaining mostly dubious examples. Also remove readme.txt

1 files changed, 47 insertions, 0 deletions

diff --git a/src/scripts/examples/rsa.py b/src/scripts/examples/rsa.py
new file mode 100755
index 000000000..998b72b7b
--- /dev/null
+++ b/src/scripts/examples/rsa.py
@@ -0,0 +1,47 @@
+#!/usr/bin/python
+
+import botan
+
+def make_into_c_array(ber):
+    output = 'static unsigned char key_data[%d] = {\n\t' % (len(ber))
+
+    for (idx,c) in zip(range(len(ber)), ber):
+        if idx != 0 and idx % 8 == 0:
+            output += "\n\t"
+        output += "0x%s, " % (c.encode('hex'))
+
+    output += "\n};\n"
+
+    return output
+
+rng = botan.RandomNumberGenerator()
+
+rsa_priv = botan.RSA_PrivateKey(1024, rng)
+
+print rsa_priv.to_string()
+print int(rsa_priv.get_N())
+print int(rsa_priv.get_E())
+
+rsa_pub = botan.RSA_PublicKey(rsa_priv)
+
+print make_into_c_array(rsa_pub.to_ber())
+#print make_into_c_array(rsa_priv.to_ber())
+
+key = rng.gen_random(20)
+
+ciphertext = rsa_pub.encrypt(key, 'EME1(SHA-1)', rng)
+
+print ciphertext.encode('hex')
+
+plaintext = rsa_priv.decrypt(ciphertext, 'EME1(SHA-1)')
+
+print plaintext == key
+
+signature = rsa_priv.sign(key, 'EMSA4(SHA-256)', rng)
+
+print rsa_pub.verify(key, signature,  'EMSA4(SHA-256)')
+
+# Corrupt the signature, make sure it doesn't verify
+signature = signature.replace(signature[0], '0')
+
+print rsa_pub.verify(key, signature,  'EMSA4(SHA-256)')