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Second CTFs part

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emln
2026-05-10 20:42:33 +02:00
parent 5635246581
commit 9f240eba3b
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1
web-auth/keyvault/RsaCtfTool Submodule

Submodule web-auth/keyvault/RsaCtfTool added at e261e73888

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web-auth/keyvault/convert.py Normal file
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import base64
# Example Base64 encoded N value
b64_n = "33dSdlKWda7L8qG94uQHfd21KnwjnbyCyMj44gTS5olb7Aejqsu8fB2lzNJhpWf6bDpFQ3iAWIXjuDQLPHGnQqHasDPEcJdlcQOJn6Sqgj2PnbuE2bBASXEefzjssDJyiZdqMWGRp41E_TlqUcoShkMjf95N_4KlvjsOTb9I99iAA3ouTWcfHA4N7Ln3fzL-BNYlVtbxTCCT-u4kyC0HewrNltZVNiJPV-FxH9FVKvqZQIv-ZCM6EgnXnU9broBZEENIEK02yYvyjqxwPnku96J4MdDItY9qyiNTzSNkHyNK0ds-kagMLT2EP7mR2EAryCv0ZDgJKQlIw4xYH91MKQ"
# 1. Decode the string
# If it's standard Base64:
# n_bytes = base64.urlsafe_b64decode(b64_n)
# If it's Base64URL (common in JWKs):
n_bytes = base64.urlsafe_b64decode(b64_n + "==")
# 2. Convert bytes to integer (Big-Endian)
n_integer = int.from_bytes(n_bytes, byteorder="big")
print(f"Integer Value: {n_integer}")