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22 lines
876 B
Python
22 lines
876 B
Python
""" No crypto operation is done on keys.
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They are thus represented as ASCII armored PEM.
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"""
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from cryptography.hazmat.primitives import serialization
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from cryptography.hazmat.primitives.asymmetric import rsa
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def gen_key(bits=2048):
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""" Generate and return a new RSA key.
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"""
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k = rsa.generate_private_key(public_exponent=65537, key_size=bits)
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return k.private_bytes(encoding=serialization.Encoding.PEM,format=serialization.PrivateFormat.PKCS8,encryption_algorithm=serialization.NoEncryption())
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def strip_key(pem):
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""" Return only the b64 part of the ASCII armored PEM.
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"""
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priv_key = serialization.load_pem_private_key(pem, password=None)
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public_pem = priv_key.public_key().public_bytes(encoding=serialization.Encoding.PEM,format=serialization.PublicFormat.SubjectPublicKeyInfo)
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return public_pem.replace(b"\n", b"").split(b"-----")[2]
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